Passive Income Ideas For Plumbers [2025]

A multipreneur shares how she built a successful print on demand side hustle, generating $120,000 per year through multiple brands spread over various platforms.

Everyman, an everyday carry eCommerce company, has been generating around $60,000 per month in revenue after completing a brand and website revamp last year, with an average of 35% returning customers who spend $50 or more on the site.

BACH, an app that plans and books bachelorette parties, has grown from $0 to >$1M net revenue run rate in less than 6 months, gained over 100,000 users in their first 60 days, and has over 40,000 parties using the app this month.

This case study follows the journey of a young entrepreneur from Nigeria who started a profitable blog generating a monthly revenue of $1,500+ through sales of advertising space, sponsored posts, and information products, and shares his strategies for success including a Twitter growth challenge and guest post pitches.

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.

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.

Starter Story grew to 1.4 million monthly visitors and millions in annual revenue by sharing the stories of entrepreneurs. Pat breaks down the early days and how he grew the business into something that changed his life.

Founder Roy Kirchner shares how he started an eCommerce business specializing in 3D printing with an initial investment of $65,000, which now averages monthly gross sales of $330,000 and has partnered with international manufacturers and local businesses while offering technical support and education.

DPW (Digital Procurement World) is a fast-growing conference and community in procurement that has more than tripled in revenue since launching in 2019, capping out the year at €1.8 million, with 95% of their growth coming from inbound traffic leveraging LinkedIn and applying social selling techniques.

This case study explores how Spencer Mecham founded Buildapreneur, an affiliate marketing business, and has made over half a million dollars in profit with no employees, relying solely on content marketing through platforms like Facebook, YouTube, and TikTok.