Startups Making $10k - $50k/mo

Adaptee is an A/B testing and paywall optimization platform for mobile apps, built by Vitaliy Davidov and his co-founders who previously worked at Easy10, a top-five mobile language learning app. Launched in October 2019 with their first customer in January 2020, they grew through a Product Hunt launch in June 2020 and early-stage content/word-of-mouth marketing to reach over 200 customers managing 2 million+ end subscribers. The company raised $500K from 500 Startups in 2020 and operates on a dynamic pricing model starting at $99/month with usage-based scaling.

Shopinpal, founded in 2014 by Shuram Shubhamanian, provides data migration and system integration services for small retailers moving to the cloud. The company operates on a hybrid model combining custom development fees (currently 70% of revenue, targeting under 20% by March) with recurring SaaS subscription revenue. With 153 paying customers spanning 1000+ locations globally, Shopinpal has grown to ~$20k MRR in pure SaaS revenue and expects to hit $1M ARR by July.

Maestro is a SaaS platform that allows course creators to launch their courses in minutes, founded by Justin Burns in December 2017. The company reached $20k MRR with 200 customers paying ~$100/month within a year through a bootstrapped model, primarily leveraging 70% of customer acquisition via affiliate webinars with 30% perpetual commissions. Currently profitable with a small team of 6 and 5% monthly revenue churn, Justin is exploring raising capital and expanding into enterprise while maintaining focus on solving content creation challenges.

Right Message is an on-site personalization SaaS platform launched in January 2018 by Brennan Donies that integrates with email marketing apps and CRMs to dynamically change website content based on visitor information and email data. After just 3.5 months, the company reached $20k MRR with ~150 customers at ~$144 average monthly price, growing 30-40% monthly through direct sales to early adopters. Brennan raised $500k from integrated partners and early customers (ConvertKit, Leadpages, Drip) while maintaining a lean 8-person remote team and aiming for profitability.

SalesSeek is a combined CRM and marketing automation platform launched in late 2012 that spent three years in product development before entering sales mode. Founded by Tim Hampson and self-funded initially, the company has grown to 150 customers with an average seat count of 80-100 users, achieving over 100% net revenue retention. With approximately $240K+ in ARR and a lean 20-person team, SalesSeek targets mid-market companies and is pursuing profitability while maintaining strong growth rates.

Sherry Atwood founded Support Pay in 2011 to solve the complex problem of managing child support payments and shared parenting expenses. The platform transforms child support management by providing transparent, documented expense tracking similar to corporate expense reports. With 2,000 paying customers, $20k MRR from subscriptions, plus $80k monthly from setup fees, Support Pay has raised $7.1M including a $4M Series A, boasting a 3% annual churn rate and 12% visitor-to-paid conversion.

Side Line Swap is a community marketplace where middle school, high school, and college athletes buy and sell used sports gear. Founded in 2012 as a side project and launched formally in June 2015 after raising $120,000 in friends and family funding, the company has grown to over 2 million in gross sales with 12,000 monthly active users and is growing 15-50% month-over-month. The team leverages content marketing and social media (150,000 Instagram followers across six sport-specific accounts) to drive user acquisition and are raising a $1.5M seed round.

DealFlicks is a Priceline-style marketplace for discounted movie tickets, partnering with over 600 US theaters (including 13 of the top 50 chains) to sell empty seats at up to 60% off. Founded by Sean Wycliffe in late 2010, the company generates a ~$2.4M annual revenue run rate with 2x year-over-year growth, selling roughly 100,000 tickets and concession packages monthly at an average price of $15. Growth is driven primarily through SEO (people searching for movie deals), AdWords, and affiliate partnerships, with DealFlicks keeping 15-20% of transaction value while theaters capture the remainder.

Mark Podolsky is known as "The Land Geek" and is a leading authority on buying and selling raw, undeveloped land in the United States. Since 2001, he has completed over 5,000 unique transactions and generates over $20,000 per month in passive income through owner-financed deals. His business model uses direct mail to find distressed property owners, purchases land at steep discounts (often 20-30 cents on the dollar), and either flips them wholesale or finances them to buyers at 12.7% interest, creating recurring monthly revenue streams.

Stockalarm is a mobile and web app that sends real-time alerts to traders when their watched stocks hit specified prices, eliminating the need for constant manual monitoring. Yahya Bakur joined the project in early 2019 when it had under $100 MRR, and through a combination of rapid feature development, community engagement, and strong SEO optimization, grew it to $20K MRR by 2024. Yahya quit his $250K/year Amazon job to go full-time on the product, which now has 170K newsletter subscribers and a 4.8-star rating with 6,000 app store reviews.

Tony is a Vietnamese indie hacker who quit his corporate job in August 2021 with only 300 MRR in revenue from Black Magic to pursue building multiple products. Within one year, he grew to nearly $20,000 MRR across three main products: Black Magic ($10k/month, a Twitter growth tool), Snapper ($4.2k/month, a screenshot tool), and Dev Utils (~$4k/month, a developer toolbox). His success came from building an audience on Twitter, creating products that solved his own problems, and leveraging viral loops that kept compounding.

Savvy Cal is a bootstrapped scheduling SaaS founded by Derek Reimer that crossed $20k MRR (~$240k ARR) as a solo founder operation. The product achieved its strongest growth month in October after the initial January 2021 product launch, with Derek crediting a strategic product launch with marketing consultant Corey Haynes. Derek is now planning his first engineering hire while maintaining a lean operation with outsourced support and marketing.

Danny Postma built Headlime, an AI-powered copywriting SaaS, in just one month and grew it from $1K to $20K MRR in 3 months through viral Twitter content and the 'build in public' strategy. The product gained massive traction after pivoting to use GPT-3, and Danny sold the company in March 2021 for a seven-figure sum to Jarvis.ai after just 8 months of operation.

Upvoty is a user feedback SaaS tool founded by Mike Slaats that reached $1,000 MRR within 2 months of launch in February 2019 through content marketing and community validation. The company grew organically to $20,000 MRR over 3 years with a remote team of 8, primarily through product-led growth powered by embedded 'Powered by Upvoty' links in customer feedback portals that drive referrals. Now serving over 500 companies, Upvoty exemplifies how focusing on a specific target audience (early-stage founders and product managers) and leveraging customers as distribution channels can drive sustainable bootstrapped growth.

Badis Kalfalahi launched LeadGuru.io in September 2016 as a side hustle while attending Achèse Paris business school, building a service that outsources cold-email campaigns for B2B companies. The company reached $19,000 MRR with 24 customers paying an average of $800/month through a subscription model, generating approximately $45,000 in revenue over eight months. After his CTO departed, Badis pivoted to partnering with Reply.io instead of building proprietary tech, focusing on the service and sales aspects of the business.

40 Aprons is a food blog started by Cheryl Malik that grew from a hobby to earning $18,000/month. In 12 months, her blog income grew nearly 4000% and traffic increased 1300% by focusing on consistent, high-quality content and leveraging Pinterest for growth. The business model relies primarily on display ads, affiliate income, sponsored posts, and freelance food photography services.

SEOTesting.com is a SaaS tool that automates reporting of page updates and changes for SEO professionals and agencies. Nick Swan launched it initially as a free tool, then transitioned to a paid subscription model and eventually rebranded and rewrote the codebase. The product has grown to $18,000 MRR.

PostBridge is a social media scheduling tool founded by Jack Friks to solve his own pain point of manually posting across platforms. The solopreneur-built SaaS has grown to $18k/month MRR while maintaining a lean, authentic approach to product development that prioritizes user empowerment over overwhelming features.

Churnly.ai is a SaaS analytics platform launched in June 2018 that helps companies understand and reduce customer churn using machine learning. Founded by Adam, a veteran entrepreneur who previously led user-generated content at The Guardian and built Blotter, the company spent $300K developing the MVP and has grown to 20 paying customers averaging $900/month in revenue. Currently generating ~$18K MRR with a 12-person team, the company is bootstrapped and burning $40K/month as it scales product and sales.

Thanksbox is a digital card and cash collection platform that lets teams celebrate occasions (birthdays, departures, weddings) without the friction of physical cards. Founded by Val Hinoff in May 2020 during the pandemic, the bootstrapped SaaS reached $18,000 MRR within 15-16 months by identifying a strong product-market fit with built-in viral loops (users must share the card to use it) and scaling via Google Ads with a $2 cost per acquisition against a $5.99 base price point.