Explore Successful Businesses

Problems

99 of some of the most painful, in-demand problems in a database for you to check out. How do people spot problems worth solving? What does a “good problem” look like? Can you solve a good problem in the wrong way? How do they know what’s the right solution to build?

Ask the data real businesses · real revenue · cited

Matching your filters

9 businesses

78% founder-reported, the rest researched

<$10K

$10K+

$50K+

$100K+

$1M+

Median revenue

$400K /mo

Middle half earn $50K – $3M/mo

How they grow

Business models

Showing 9 case studies

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Built With

Premium business outputs without bloated software workflows

stackero.co

$40K /mo Reported

All-in-one freelancer platform

All-in-one business management tool for freelancers.

workee.ai

$100K /mo Reported

Keto weight loss coaching

Thyroid-focused keto coaching for women's weight loss.

ketogirlnutritionist.com

$50K /mo Reported

Exclusive analytics for Ghost blogs

GDPR-compliant analytics for Ghost bloggers.

ghostboard.io

$500 /mo Reported

People search intelligence tool

"People search tool for connections and safety."

spokeo.com

$6M /mo Reported

Stock research newsletter platform

Financial media platform providing stock ratings and market research for retail investors

marketbeat.com

$3M /mo Reported

Digital wallet for payments

Digital wallet revolutionizing payments across Europe.

icard.com

$2M /mo Reported

Ai-driven workflow automation

AI-driven workflow automation platform for businesses

lutra.ai

—

Customer experience automation tool

Marketing automation platform for customer experience

activecampaign.com

$4M /mo Estimated

Idea	Revenue	Model	Growth	Customers	Tools	Details	Solo score A 0–100 estimate of how well-suited a business is to being run solo (or very lean). It blends team leanness, business model, growth channels, capital intensity, revenue per operator, tooling leverage and recency into one score. Higher = more solopreneur-friendly.
SC Premium business outputs without bloated software workflows stackero.co	$40K /mo Reported	SaaS +1	Email marketing Referral Program +1	Small to Medium Businesses +4		Founded 2026 · Solo founder · $400 to start	80	Build this
All-in-one freelancer platform workee.ai All-in-one business management tool for freelancers.	$100K /mo Reported	Software +4	Pay Per Click Advertising Referral Program +1	Private Tutors +17	AW +3	Founded 2020 · 6 people · Lewes, Delaware, USA, United States	59	Build this
Keto weight loss coaching ketogirlnutritionist.com Thyroid-focused keto coaching for women's weight loss.	$50K /mo Reported	Group coaching +7	Direct sales Organic social media +1	Women With Thyroid Diso... +11	CO	Founded 2019 · Solo founder · $300 to start	71	Build this
Exclusive analytics for Ghost blogs ghostboard.io GDPR-compliant analytics for Ghost bloggers.	$500 /mo Reported	SaaS +3	Word of mouth SEO +1	Ghost Bloggers +7	PR +8	Founded 2018 · Solo founder · $200 to start	73	Build this
People search intelligence tool spokeo.com "People search tool for connections and safety."	$6M /mo Reported	Subscription	Advertising on social media Press +1	Consumers +13		Founded 2006 · 169 people · Pasadena, Newfoundland and Labrador, Canada, United States	55	Build this
Stock research newsletter platform marketbeat.com Financial media platform providing stock ratings and market research for retail investors	$3M /mo Reported	Freemium +2	Advertising on social media Press +1	Individual Investors +6	+6	Founded 2011 · 18 people · $10 to start	76	Build this
Digital wallet for payments icard.com Digital wallet revolutionizing payments across Europe.	$2M /mo Reported	Freemium +2	Word of mouth SEO +1	Digital Nomads +9	+27	Founded 2008 · 200 people · Varna, Varna, Bulgaria, Bulgaria	55	Build this
Ai-driven workflow automation lutra.ai AI-driven workflow automation platform for businesses	—	SaaS +1	Product-led growth Word of mouth +1	Business Owners +2	GO GM +1	Founded 2023 · 2 co-founders · San Francisco, CA, USA, United States	80	Build this
Customer experience automation tool activecampaign.com Marketing automation platform for customer experience	$4M /mo Estimated	One time setup fee +5	Organic social media Earned media +1	Small businesses +3		Founded 2003 · 1,000 people · $2K to start	63	Build this

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