23 Business Ideas For Penetration Tester [2024]

Updated: September 6th, 2024

Interested in starting a business as a doctor in 2024?

If managed well, building a business as a doctor could be more lucrative than employment. So, which are the best business ideas for Doctors?

We put together 23 of some of the best doctor business ideas you can start in today.

For each business idea, we'll show you real-world examples of other doctor businesses to help you see what it takes.

Here's the full list:

1. Start a mobile app development business ($141K/month)

As a penetration tester, starting a mobile app development business could be a strategic and profitable move, leveraging your existing technical skills and security expertise. Your deep understanding of cyber threats and vulnerabilities would position you uniquely to create secure, robust mobile applications, which is a significant selling point in today's security-conscious market. This could also allow you to offer value-added services such as app security audits, penetration testing, and vulnerability assessments as part of your development package.

By combining your penetration testing skills with mobile app development, you could create a niche for yourself, specializing in developing apps that prioritize security from the ground up. This proactive approach to security could attract clients from industries where data protection is crucial, such as finance, healthcare, and e-commerce. Additionally, your ability to identify and mitigate potential risks during the development phase would reduce the chance of costly security breaches for your clients.

Moreover, the growing demand for mobile applications provides ample opportunities to expand your business. You could explore various app genres, from productivity tools to social networking applications, and capitalize on your dual expertise to build a unique brand reputation. In summary, merging your penetration testing background with mobile app development could lead to a lucrative side business or even transition into a full-time entrepreneurial venture.

How much you can make: $6,000 — $700,000/month

How long does it take to build: 120 days (?)

How I Started A $6K/Month SEO And Digital Marketing Agency In Bangladesh

This case study features Md. Yousuf Ali, the founder of Rank Trends, who shares how he started a successful digital marketing agency, which generated a revenue of over $6k per month through SEO and video production services.

Read by 12,486 founders

2. Start an AI-based business ($27.9K/month)

As a penetration tester, you could leverage your deep understanding of cybersecurity to develop AI-driven solutions that enhance security measures for businesses. By creating sophisticated AI algorithms focused on threat detection, vulnerability assessments, and automated response systems, you could help companies stay ahead of ever-evolving cyber threats. This would not only supplement your income but position you as an innovator in the cybersecurity space.

Moreover, an AI-based business allows you to scale your expertise beyond manual penetration testing by automating repetitive and time-consuming tasks. This could free up your time to focus on higher-value services, such as strategic security consulting. With AI's potential to optimize processes and provide deep insights, you could attract a broad range of clients eager to adopt cutting-edge protective measures, positioning your enterprise at the forefront of technological advancement.

How much you can make: $100 — $200,000/month

How much does it cost to start: $500 (?)

How long does it take to build: 40 days (?)

How I Started A $10K/Month App Building Agency Using No/Low Code Tools

LowCode Agency uses no/low code tools to build custom-made apps at 80% lower cost and 70% faster than traditional app development agencies, growing double digits every month and targeting $150,000 in sales in their first year.

Read by 20,974 founders

3. Start an email marketing tool ($249K/month)

As a penetration tester, leveraging your expertise in security to create an email marketing tool could open up new revenue streams while maintaining your focus on cybersecurity. Utilizing your knowledge, you can design an email tool that emphasizes data security and privacy, highly appealing to companies wary of breaches and compliance issues.

Given the email marketing industry's expected growth to $2.53 billion by 2028, there's a thriving market for innovative and secure communication tools. You could develop features such as advanced encryption and secure login protocols, differentiating your product and meeting the demand for safer marketing solutions.

Embedding your niche expertise, you could also offer specialized services, such as consulting for secure email campaigns, thereby further increasing your business's value proposition.

How much you can make: $120 — $2,083,333/month

How much does it cost to start: $1,000 (?)

How long does it take to build: 170 days (?)

I Built A SEO Tool That's Completely Free For Users [From Lebanon]

H-supertools founder Hasan developed a set of free SEO and digital marketing tools generating $2k per month in profit using Google Adsense, affiliate marketing, selling ad spaces, and email, plans to launch a membership option, and has attained over 80k registered users and 300k monthly visits in less than two years.

Read by 14,023 founders

4. Start a two sided marketplace ($20.3K/month)

As a penetration tester, starting a two-sided marketplace could be a lucrative business opportunity. You could create a platform that connects companies seeking cybersecurity evaluations with freelance penetration testers. Businesses often face challenges in finding reliable testers, while skilled testers may struggle to find consistent work. Your marketplace would bridge this gap by offering a trustworthy and efficient medium for both parties.

Beyond connecting buyers and sellers, your expertise as a penetration tester would enable you to vet and verify the skills of testers joining the platform, ensuring a high-quality service. Additionally, you could develop features that streamline the contracting and reporting processes, adding value for both sides. This approach not only supplements your income but also leverages your specialized knowledge to create a community-focused, scalable venture.

How much you can make: $100 — $100,000/month

How long does it take to build: 150 days (?)

How This Uber Driver Created A $270K/Year App For Gig Workers

Muver is a mobile app for gig workers allowing them to multi-app seamlessly between Uber, Uber Eats, Doordash, Grubhub, Lyft, Instacart, and more within a single app with over $270k revenue in the past 12 months.

Read by 4,893 founders

5. Start an email app business ($64.6K/month)

As a penetration tester, you could leverage your knowledge of cybersecurity to start an email app business focused on privacy and security. By creating an app that offers intelligent filtering, prioritization, and possibly AI-driven responses, you would address the need for streamlined email communication and organization. This concept caters to a growing market of users who are overwhelmed by cluttered inboxes and demand robust security features.

Developing this app would require your skills in software development and user interface design, as well as market research to understand user needs and competitive landscapes. With your unique expertise, you could differentiate your product from giants like Gmail and Outlook by emphasizing advanced security protocols and user-friendly features. This could not only supplement your income but also establish you as a key player in the email management industry.

How much you can make: $21 — $400,000/month

How long does it take to build: 180 days (?)

We Built Our App From The Back Of A Bus And Grew It To 10,000 Users

Leave Me Alone, a web service that helps users easily unsubscribe from unwanted emails, launched in January 2019 and made $1,186 in revenue in its first month, with a successful Product Hunt launch and a focus on being an open startup contributing to its success.

Read by 13,291 founders

6. Start a b2b lead generation service ($172K/month)

As a penetration tester, your technical skills and understanding of business vulnerabilities can uniquely position you to excel in B2B lead generation. By leveraging your expertise in identifying gaps and opportunities, you could provide high-quality leads to businesses in cybersecurity and other tech sectors, helping them target potential clients who need robust security solutions.

In doing so, you could mitigate the daunting task many companies face in finding niche, high-quality leads, offering a service that combines research, cold outreach, and advanced technology tools. The demand for such specialized lead generation is substantial, ensuring a steady stream of clients and a scalable business model. This could be a rewarding and lucrative side business or even a full-time venture, allowing you to utilize your existing skill set in a new and impactful way.

How much you can make: $500 — $1,250,000/month

How long does it take to build: 165 days (?)

How I Started A $12K/Month Digital Marketing Agency While Traveling Around The World

A 20-year-old digital nomad and serial entrepreneur shares his journey of starting a successful digital marketing agency, Nomads with Solutions, which specializes in Facebook lead generation, and offers insights on client acquisition, personal branding, and focusing on self-improvement.

Read by 10,030 founders

7. Start a micro saas ($82.9K/month)

As a penetration tester, starting a micro SaaS business could be an excellent way to supplement your income or even transition into a full-time endeavor. By leveraging your expertise in identifying security vulnerabilities, you could develop specialized software solutions that cater to niche markets within cybersecurity. For instance, you might create a tool that automates certain aspects of vulnerability scanning or a platform for secure code review.

The intimate knowledge you have of the industry allows you to pinpoint and solve specific problems that larger SaaS providers might overlook. You could develop highly customized solutions that address unique security challenges, fostering a closer relationship with your customer base.

Prioritizing customer feedback during your development process will help you refine your product and ensure its long-term success. This focus on niche markets and precision can set you apart in the competitive landscape, making your micro SaaS venture both effective and profitable.

How much you can make: $117 — $1,766,666/month

How much does it cost to start: $500 (?)

How long does it take to build: 60 days (?)

How We Developed A $29K/Month WhatsApp Plugin For Shopify

SuperLemon, a WhatsApp plugin for Shopify eCommerce stores, crossed $29,000 in MRR as of July 2020, with 20,000 users from 50+ countries and 1700+ paying customers, all acquired through organic marketing strategies and a relentless focus on customer service and satisfaction.

Read by 23,512 founders

8. Start a social media automation business ($148K/month)

As a penetration tester, your deep understanding of systems and automation can be an excellent foundation for starting a social media automation business. You could leverage your technical expertise to develop or integrate sophisticated tools that schedule posts, automate interactions, and provide detailed analytics for clients ranging from small businesses to influencers.

This business opportunity could supplement your income by tapping into the ever-growing demand for consistent and strategic social media engagement. By staying current with social media trends and continually refining your automation solutions, you could not only enhance your clients' online presence but also build a sustainable, tech-driven side business or full-time venture.

How much you can make: $4,000 — $400,000/month

How long does it take to build: 50 days (?)

How I Bootstrapped A Social Media Automation Tool To $2MM/Year

MeetEdgar, a bootstrapped social media automation tool founded in 2014 by Laura Roeder, has grown to $4 million in annual recurring revenue and more than 5,000 customers, with a team size of two dozen, achieved through content marketing, social media marketing, and organic search.

Read by 15,178 founders

9. Start a consulting business ($104K/month)

Starting a consulting business could be an excellent opportunity for penetration testers to supplement their income or launch a new venture. Given the growing importance of cybersecurity, companies are increasingly seeking expert advice. With your specialized skills, you could offer valuable insights and solutions to businesses needing to strengthen their security postures.

The global consulting industry is booming, valued at around $250 billion, making it an attractive market. Penetration testers with entrepreneurial mindsets could leverage their expertise to help companies secure their networks, applications, and data. Learning from established consultants' experiences and strategies could further enhance your chances of success.

By offering tailored consulting services, you could position yourself as a key player in a sector where demand is soaring. This flexibility allows you to maintain a steady stream of work while gradually building your consulting business.

How much you can make: $100 — $1,500,000/month

How much does it cost to start: $1,000 (?)

How long does it take to build: 60 days (?)

How I Started A $45K/Month Cybersecurity Consulting Firm For Startups

Cybersecurity consulting firm Eden Data, launched in March 2020, scaled to four team members and generated over $45k MRR without large startup costs through their unique Virtual CISO offering, which outsources cybersecurity and compliance needs for a flat monthly price, rather than charging by the hour or for long-term commitments.

Read by 35,770 founders

10. Start a lead generation service ($287K/month)

As a penetration tester, you could leverage your expertise in cybersecurity to start a lead generation service specifically tailored to companies looking for robust security solutions. By utilizing your knowledge of digital marketing and data analysis, you could identify potential clients who need security audits and services, helping bridge the gap between security providers and businesses with pressing cybersecurity needs.

Your background uniquely positions you to understand the challenges and pain points in the cybersecurity landscape, making it easier to craft compelling campaigns and strategies that attract high-quality leads. This not only supplements your income but also allows you to play a pivotal role in improving overall cybersecurity standards across various industries. By earning a steady income through your lead generation service, you could create a flexible business model that complements your penetration testing career, or even evolve into a full-fledged entrepreneurial venture.

How much you can make: $4,000 — $1,600,000/month

How much does it cost to start: $1,000 (?)

How long does it take to build: 90 days (?)

How We Started A $20K/Month Digital Marketing Services Company

Stackmatix achieved $20k MRR in under two years by providing integrated digital marketing solutions for businesses, from start-ups to Enterprises, with a holistic, consultative approach, and currently they're pacing towards their goal of $50k MRR in another six to twelve months.

Read by 5,521 founders

11. Start a business communications software ($1.73M/month)

As a penetration tester, your expertise in cybersecurity uniquely positions you to develop highly secure business communications software. This insight could be invaluable in designing tools that not only facilitate seamless communication but also prioritize data protection and privacy, addressing a critical need in today's technology-driven and remote work environments.

By leveraging your background, you could create a product that stands out in the crowded market of communication tools, focusing on security features that give businesses peace of mind. This venture could supplement your income or even become a full-fledged business, enabling you to bridge the gap between efficient communication and robust security, and potentially revolutionize how companies interact both internally and externally.

How much you can make: $5,000 — $10,000,000/month

How long does it take to build: 180 days (?)

Raising $19,000 Building a Positive Card Game

PEAR Cards is a card-based tool/game that empowers players to open up and initiate positive conversations, and with the help of Ad Magic, their Kickstarter had an all-or-nothing fundraising goal, which they met with so much support the company is now growing through the power of Twitter and Instagram.

Read by 8,208 founders

12. Start a marketing coaching business ($81.2K/month)

As a penetration tester, you possess a unique problem-solving mindset and an analytical approach that can be incredibly valuable in a marketing coaching business. You could leverage these skills to help companies optimize their marketing strategies by identifying gaps and vulnerabilities in their current plans. This analytical framework naturally lends itself to pinpointing areas where businesses can sharpen their messaging and improve their overall communication.

Starting a marketing coaching business doesn’t require a large upfront investment—your expertise and strategic thinking are your most valuable assets. You could offer one-on-one coaching sessions, lead group workshops, or create online courses designed to help businesses amplify their voices and reach their target audiences more effectively. This venture allows you to maintain flexibility, making it a perfect side business or even a full-time endeavor if you decide to shift your career focus.

For those passionate about both technology and marketing, delving into a marketing coaching business could be an enriching experience. By guiding businesses in crafting actionable marketing plans and analyzing market trends, you could generate a substantial supplemental income while helping others achieve their goals.

How much you can make: $5,000 — $300,000/month

How much does it cost to start: $1,350 (?)

How long does it take to build: 30 days (?)

How I Started A $10K/Month Business Selling DIY Web Design And Marketing Courses

How Shannon Mattern built a DIY web design training business from scratch that now generates $10k/month in revenue through affiliate commissions and courses, without outside investment or debt.

Read by 21,174 founders

13. Start a startup instructing business ($28.4K/month)

Starting a startup instructing business as a penetration tester could be a rewarding avenue to supplement your income. Your unique expertise in cybersecurity and risk management positions you ideally to advise new ventures on building secure, resilient business models from the ground up. This niche specialization can greatly appeal to tech startups, as cyber threats continue to rise and the importance of strong security protocols becomes increasingly apparent.

You could offer guidance on critical areas like business planning, marketing strategies tailored to tech security firms, and best practices for maintaining secure digital environments. Creating a website or social media profile to highlight your services and establishing affordable rates can help you attract startups looking to mitigate the risks of cyberattacks. As you build your reputation through successful client outcomes and word-of-mouth referrals, you could transform your side venture into a flourishing full-time business.

How much you can make: $1,000 — $100,000/month

How much does it cost to start: $500 (?)

How long does it take to build: 75 days (?)

How I Launched A $5K/Month Platform To Connect With Growth Mentors

GrowthMentor, a platform connecting vetted growth mentors for one-on-one calls, founded by Fotis Panagiotakopoulos, has had over 2,500 mentorship calls booked to date and has seen success in using word of mouth, content marketing, and leveraging other people's networks as the primary drivers of customer acquisition.

Read by 45,988 founders

14. Start a cloud management software ($129K/month)

As a penetration tester, starting a cloud management software business could be an excellent way to supplement your income or even launch a full-scale venture. Given your current expertise in cybersecurity, you would have a competitive edge in developing software that ensures secure and compliant cloud operations. Your insights could be instrumental in creating solutions that help businesses monitor, manage, and optimize their cloud resources efficiently, addressing a pressing need in the market.

The cloud management sector is growing rapidly as more companies transition to digital solutions, presenting a significant market opportunity. Your skills in identifying vulnerabilities and ensuring security could be leveraged to design user-friendly interfaces and robust backend systems that streamline cloud management. By tapping into this demand, you could build a profitable software business that serves industries ranging from healthcare to finance, creating a dual benefit of financial return and professional satisfaction.

How much you can make: $25,000 — $330,000/month

How long does it take to build: 180 days (?)

How We Partnered With Salesforce To Develop A $330K/Month Laboratory Information Management SaaS

Third Wave Analytics developed the world's first cloud-based and customizable LIMS platform on Salesforce, generating $330k monthly revenue from clients such as Ohio State University and Boston University School of Medicine while partnering with the University of California-Berkeley for a COVID-19 study; founder Savitra Sharma advises aspiring entrepreneurs to focus on clear objectives to meet their goals.

Read by 8,111 founders

15. Build an analytics tool ($170K/month)

As a penetration tester, you already possess the technical acumen to design and develop robust software solutions. Creating an analytics tool could be a lucrative side business or even a full-time venture. With the increasing importance of data in decision-making, companies are actively seeking efficient ways to access, visualize, and analyze their data.

An analytics tool could cater to businesses of all sizes, providing small businesses with insights to optimize their operations and larger enterprises with comprehensive performance tracking capabilities. Leveraging your existing skills and understanding of cybersecurity, you could create a secure and user-friendly analytics platform. Given the success of established tools like QlikView, which generated $750M in revenue in 2022, your venture could tap into a growing market eager for innovation and efficiency.

With big data continuing to rise, the demand for intuitive and effective analytics tools will only increase, presenting a promising entrepreneurial opportunity for a technically skilled professional like yourself.

How much you can make: $20 — $1,500,000/month

How much does it cost to start: $4,750 (?)

How long does it take to build: 135 days (?)

How Our Privacy Friendly Web Analytics Tool Reached $4K/Month Without Paid Ads

Plausible Analytics, a privacy-friendly web analytics tool, reached $4,557 MRR and 743 paying subscribers by focusing on content marketing and engaging relevant communities, rather than paid advertising, while positioning itself as a lightweight, cookie-free and affordable alternative to Google Analytics.

Read by 10,249 founders

16. Start a data analytics software business ($454K/month)

As a penetration tester, you could leverage your expertise in identifying and mitigating security vulnerabilities to develop specialized data analytics software that addresses security-specific insights. Businesses increasingly rely on data to make informed security decisions, and creating software that helps organizations visualize and interpret their security data could fill a crucial niche in the market.

Your deep understanding of data flows and security protocols positions you uniquely to design user-friendly tools that not only display trends and anomalies but also provide actionable insights. This dual focus on data analytics and security could offer clients an invaluable resource for safeguarding their operations.

By targeting industries where data security is paramount, such as finance or healthcare, and emphasizing the simplicity and efficacy of your software, you could build a successful side business or even transition to a full-fledged entrepreneurship.

How much you can make: $1,000 — $4,200,000/month

How long does it take to build: 150 days (?)

Diesel Laptops: From Selling on eBay to Making $20M/Year

Diesel Laptops, a B2B company that sells diesel diagnostic hardware, software, and services, successfully doubled revenue each year to make $20 million annually within three years, grew from its founder's garage and dining room table to a 21,000 square foot facility with over 90 employees by listening to customer pain points and offering the bundled products, technical support and repair information to attract and retain diesel technicians and repair shop owners.

Read by 18,805 founders

17. Start a data mining and analytics tools business ($237K/month)

As a penetration tester, you could leverage your technical expertise to start a data mining and analytics tools business, converting raw data into actionable insights. This business involves developing software that extracts, processes, and analyzes vast amounts of data to uncover patterns, trends, and insights, which are increasingly vital for data-driven decision-making.

By targeting key industries such as finance, healthcare, and retail, you'd be addressing a growing market demand for sophisticated analytics solutions. Your deep understanding of programming, statistics, and machine learning will be crucial in creating effective tools.

This entrepreneurial venture not only utilizes your existing technical skills but also offers the rewarding challenge of driving businesses towards better strategic decisions, thereby contributing to their success and industry transformations.

How much you can make: $450 — $1,500,000/month

How much does it cost to start: $750 (?)

How long does it take to build: 107 days (?)

How We Developed A $40K/Month Email Parser Application

Parseur, the data extraction tool, helps businesses automate their data entry process, catering to multiple industries such as food delivery, real estate and marketing, and has grown to over $40k in revenue per month since its launch in 2017.

Read by 10,411 founders

18. Start a customer intelligence analytics business ($107K/month)

As a penetration tester, you could leverage your skills in data analysis and problem-solving to start a customer intelligence analytics business. By understanding customer interactions and behavior, you could guide organizations in making more informed business decisions. This could include identifying potential security vulnerabilities and offering tailored solutions to enhance data protection, which aligns with your core expertise.

This venture would allow you to tap into a growing market where businesses of all sizes seek insights to improve their marketing, sales, and customer retention strategies. Your expertise in identifying and mitigating risks would be invaluable in ensuring the integrity of the customer data being analyzed, thereby placing you in high demand for your specialized skills and knowledge.

How much you can make: $100 — $840,000/month

How long does it take to build: 180 days (?)

How We Developed A $30K/Month Open Source CRM

EspoCRM, an open-source CRM application for small and mid-size businesses, has seen an average of over 16,000 downloads per year and makes up to $30k per month, offering efficient tools to systematize customer data, improve sales cycles, and automate routine administrative tasks.

Read by 10,903 founders

19. Start an influencer platform ($89.6K/month)

As a penetration tester, you could leverage your technical expertise to create a secure and reliable influencer platform, connecting brands with influential personalities. With your understanding of cybersecurity, you could ensure the development of a user-friendly, well-protected digital space where influencers and companies can collaborate seamlessly without the risk of data breaches or other cyber threats.

This business idea allows you to tap into the growing digital marketing ecosystem, offering a marketplace where brands can easily browse, evaluate, and contract influencers. Built-in analytics tools could help track campaign performance, providing tangible benefits for both parties. By setting up this venture, you could supplement your income while contributing to a lucrative and expanding industry, utilizing your skills to facilitate secure, impactful digital connections.

How much you can make: $2,000 — $350,000/month

How long does it take to build: 240 days (?)

I Built $140K+ MRR SaaS With No Audience & Sold It For $3.5M

This case study is about a founder who launched a paywall platform for content creators in 2019, bootstrapping it from $0 and eventually selling it for $3.5M on Flippa, with the platform generating between $125,000 - $142,000 in Monthly Recurring Revenue (MRR) on 95% margins.

Read by 9,981 founders

20. Start a saas company ($176K/month)

As a penetration tester with strong technical skills and a deep understanding of cybersecurity, you could leverage your expertise to start a SaaS company focused on providing automated security tools or vulnerability assessment platforms. Such a service would be highly valuable for businesses looking to enhance their security posture without the need for extensive internal resources or expertise. Given the widespread need for robust security solutions, your knowledge in identifying and mitigating vulnerabilities could make your product indispensable for clients.

By offering a subscription-based service, you would create a steady stream of recurring revenue, allowing for more predictable financial planning and growth. Combining project management, automation, and workflow tools, your SaaS product could streamline security assessments and reporting for organizations, making it easier for them to maintain a strong security framework.

This entrepreneurial venture would also allow you to stay on the cutting edge of the industry, continuously updating your solutions to meet emerging threats and challenges. By starting a SaaS company, you could transform your penetration testing skills into a lucrative and scalable business model.

How much you can make: $20 — $4,160,000/month

How long does it take to build: 120 days (?)

Time commitment per week: Min. 5 hours/week

I Turned My Side Project into A $26K/Month SaaS Tool

AI-powered web application, Excelformulabot.com, generates Excel formulas within seconds for a subscription fee of $6.99/month or free for five formula requests per month, resulting in $14k/month in recurring revenue since its launch in September 2022, accruing millions of visitors through word of mouth, influencer marketing, SEO, and PPC, implemented through no-code web application Bubble.io, while preparing to penetrate a B2B market and focus on B2B outreach in the future.

Read by 21,978 founders

21. Start an electronics repair business

As a penetration tester, you already have a strong proficiency in troubleshooting complex systems and understanding intricate electronic components, which positions you perfectly for venturing into an electronics repair business. This field, worth over $2 trillion, offers a lucrative side or even full-time business opportunity with relatively low startup costs. Leveraging your existing skill set, you could offer specialized repair services that differentiate you from competition and command premium pricing for your expertise.

Starting small, you could initially invest in essential tools and equipment such as soldering irons, wire cutters, and screwdrivers, opting to purchase them used or refurbished to minimize expenses. Your deep knowledge of circuit boards and electricity will prove invaluable, enabling you to diagnose and fix issues efficiently. With the credibility and trust you've built as a penetration tester, you could attract a loyal customer base, turning your electronics repair business into a sustainable source of supplemental or primary income.

How much you can make: $4,000/month

Time commitment per week: Min. 5 hours/week

Finding and Repairing Retro Radios Turned into a Successful Side Hustle

Retro Radio Farm founder, Allen Chiang, earns $50k per year as a side business restoring old radios and offering Bluetooth MP3 upgrades, with the business growing 20% every year.

Read by 8,476 founders

22. Start an antique business

As a penetration tester, you're trained to identify hidden vulnerabilities and uncover valuable insights, skills that could be surprisingly transferable to the antique business. By leveraging your keen eye for detail and analytical mindset, you could effectively scout for undervalued antique items, whether it's vintage jewelry, old toys, or classic cars, restoring them to their former glory and selling them at a profit.

Starting an antique business on the side could supplement your income, especially if you focus on high-demand, unique pieces that cater to elite buyers. You could choose to establish a physical storefront with ample storage, or opt for an online marketplace, which would offer the flexibility to balance your primary career and entrepreneurial endeavors.

Ultimately, the key to success lies in thorough research and applying your investigative skills to identify lucrative opportunities within the antique market. With your analytical expertise, knack for problem-solving, and strategic mindset, launching an antique business as a penetration tester holds the potential for both fulfillment and profitability.

How much you can make: $15,000/month

How I Left A 25-Year Career To Start A $15K/Month Antiques Restoration Business

How a former educator built a successful antique restoration business from scratch, growing from a 2-car garage to a 2200 sq. ft. space over seven years, thanks to communication skills, dedication to organization, regular website updates, and utilization of Google My Business and Maps.

Read by 10,116 founders

23. Start a law firm ($1.04M/month)

As a penetration tester, you could consider starting a law firm specializing in areas such as cybersecurity law and data privacy. Your technical expertise in identifying vulnerabilities and understanding the intricacies of cyber threats positions you uniquely to offer legal advice and representation to businesses facing cybersecurity issues. This niche focus could differentiate your firm in the crowded legal market and attract clients seeking specialized knowledge.

Moreover, the demand for legal services in cybersecurity is on the rise due to increasing cyber threats and strict regulatory requirements. You could cater to companies needing compliance assistance, legal defense in security breaches, or consultation on developing robust cybersecurity policies. With your background, you’re not merely offering legal services but providing a layer of technical credibility that could set your firm apart from traditional law practices.

How much you can make: $80,000 — $5,000,000/month

How long does it take to build: 22 days (?)

How I Started A $5M/Month Law Firm Focused On Personal Injury Cases

A Texas law firm founded on the premise of extreme preparation and relentless advocacy for its clients captured tens of millions of dollars of market share per year as it grew from a boutique firm with a scrappy reputation to dominating the competitive Texas legal market.

Read by 6,849 founders

meet the author
Pat Walls

I'm Pat Walls and I created Starter Story - a website dedicated to helping people start businesses. We interview entrepreneurs from around the world about how they started and grew their businesses.