subscription Startups

Ringpin, founded in 2016 by John Stern and Brian Levine, is a SaaS platform that enables physical businesses and locations to drive digital campaigns and experiences through QR codes and physical touchpoints. Originally built as an omni-channel contact center, the company pivoted during the pandemic to focus on bridging physical and digital worlds, currently serving 45 customers with under $5,000 MRR but pursuing enterprise partnerships through API integrations like Postal.io.

Crowley Carbon, founded in 2011, operates an IoT and software platform called Clarity that helps manufacturing plants optimize energy efficiency and operations. The company installs low-cost wireless sensors throughout factories and uses AI/ML to identify savings opportunities, operating in 4,000+ factories across 23 countries. The flagship customer alone generates $3M annual revenue while saving $100M annually, and the energy efficiency business alone now exceeds $100M in annual revenue.

Batch Products is a bootstrapped SaaS company founded in 2018 by three co-founders (Evo Dragunov and two partners) that provides five separate data and lead generation platforms for real estate professionals and other industries. Starting with Facebook group outreach and affiliate marketing, they grew to 18,000 customers generating $2.5M in monthly revenue ($30M ARR projected for 2021) with 57% profit margins, all while maintaining 100% ownership and adding 100 employees in six months during 2020.

Suleka is India's leading marketplace for expert services, connecting SME service providers with consumers. Launched in 2007, the company grew from $100k-200k in first-year revenue to $1M by 2010, and projected $30M in 2015. Currently facilitating 600k-800k successful monthly matches between consumers and 40k-50k active service providers, with 7-8M monthly platform users.

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.

Richard Harris launched Harris Consulting Group in 2013 as a sales consulting practice focused on helping SaaS companies build and scale their sales teams. His NEAT Selling Methodology teaches reps how to ask the right questions at the right time. He works with 2-5 clients per month at approximately $2,000/month per engagement, generating around $10,000 in monthly revenue while maintaining a lifestyle business that allows him to be present for his family.

Label, a tech lead and former rabbi now operating as a developer, acquired reporti.app for $20k through Microquire as a 'mini MBA' learning project. The Shopify app helps e-commerce store owners send automated notifications and reports via Slack, currently serving 26 paid customers generating $385 MRR. Label's immediate focus is on customer outreach to improve app ratings and gather feature feedback to drive growth.

Capado is a DevOps platform for Salesforce that makes deployments stress-free, founded by Ted Elliott who joined in 2019. The company grew from $4.2 million ARR to $40 million in just over 2 years, serving 400 of the world's top 5,000 enterprise software buyers. With 340 employees and $111 million raised, Capado achieved 140% net revenue retention and is growing at 100%+ year-over-year.

AirGPU is a bootstrapped cloud gaming service that lets users play the latest games on low-spec devices by streaming from a powerful cloud PC. Founded by Ben Frieza in December 2023, the product gained its first five paying customers ($125 MRR) within five months through targeted outreach in the CloudGamer Reddit community. Currently a side project alongside Frieza's day job, the service is in beta with plans to scale through content marketing and YouTube.

Realink is a B2B SaaS platform providing virtual touring and leasing solutions for multifamily property managers. Founded by Matt Weirich in 2014 after he experienced the inefficiency of residential real estate search, the company initially targeted residential brokerages before pivoting to multifamily in 2015. The company experienced explosive growth during COVID-19, growing from $1M ARR in January 2020 to $4.5M by year-end, and reaching approximately $5.5M ARR by 2021.

Reew is an automated SaaS platform that finds, delivers, and collects video reviews for e-commerce stores by scraping YouTube for relevant product videos and unboxing content. Launched in April 2024, the company grew to 88 users (32 paying) within weeks through organic search and Shopify app store discovery, generating approximately $1,600 MRR. The founder recently closed a $1.1M seed round on a $5M cap from nine strategic super-angels including high-profile tech operators, positioning for expansion across multiple e-commerce platforms.

Softr.io is a no-code platform that allows users to build powerful applications on top of Airtable in minutes without design skills or learning curve. Founded by Mariam Hakobayan and a co-founder in August 2020, the company achieved product-hunt launch success and has grown to over 10,000 active users and several hundred paying customers within 6-7 months, reaching approximately $23,000 MRR. The company raised a $2.2M seed round in January 2021 and continues to grow primarily through organic channels like Twitter and word-of-mouth.

Spencer Jones launched Chime Social in January 2024, a Twitter scheduling and analytics tool that grew to 70-80 customers doing ~$500 MRR in just four months. After 18 months of building a failed product, he committed to shipping faster and building for his own pain points as a power Twitter user. The breakthrough came when he tweeted a chart showing optimal posting times for his followers, which generated immediate interest and led to productization.

GrowSurf is a referral marketing SaaS built by Kevin Yoon and Derek for tech startups. After a failed initial version in 2018, they completely rebuilt the product and found product-market fit around 2-3 years ago. Today they serve 213 customers at $120 average revenue per user, generating $26K MRR with 90% net dollar retention, having more than doubled revenue year-over-year while remaining bootstrapped.

NotionTweet.app is a Twitter management tool that integrates with Notion, allowing creators to schedule tweets, view analytics, and manage content entirely within their Notion workspace. Founder Minfolk Tran bootstrapped the product as a side project while working as a senior software engineer, gaining his first five paying customers within two weeks of MVP launch through Twitter virality and Indie Hackers promotion. Currently at $30 MRR with plans to pivot toward B2B customers and reach $5K MRR before quitting his day job.

Core is a project profitability platform for professional service firms (agencies, consulting, law firms) that automates time tracking with AI and provides real-time profitability insights across projects, teams, and finances. Launched in 2018 with a $10k MVP investment, the company grew to ~115 customers with $150k MRR and 114% net revenue retention. The team recently raised $6 million (with a $40M valuation at 25-26X revenue multiple) to accelerate sales and marketing hiring, targeting $2M ARR by year-end.

Customer X is a Brazilian SaaS platform for customer success management, launched in 2018 by Leonardo Stuperti and four co-founders. Operating in an underserved SMB market in Brazil, the company has grown to 100+ customers paying an average of $250/month, achieving 100%+ year-over-year growth and reaching approximately $25,000 MRR. The company raised $400,000 in seed funding at a $3M post-money valuation and is focusing on expansion revenue (currently 10% of total revenue) while scaling their paid ads strategy.

Cam Sloan was laid off in 2019 from a full-time developer role making ~$125K CAD and decided to launch Hopscotch.club, a more affordable alternative to expensive onboarding tools like Pendo. He bootstrapped the venture while doing freelance work, keeping his expenses low (~$2-4K/month in Toronto) and has landed three early-access paying customers at $20-99/month. His growth came primarily through public Twitter updates that generated referrals and organic Google search visibility.

Better Agency is a CRM built specifically for independent insurance agents, launched in late 2019 after the founder realized agents were juggling 6-8 different platforms. The company bootstrapped to $1M ARR while serving 260 customers and maintaining only 2% monthly churn (24% annual), with net dollar retention above 105%. They just closed a $2.1M seed round at a $15M post-money valuation, with founders retaining 75-80% equity.

Ship Hero is a SaaS platform serving e-commerce companies and 3PLs (third-party logistics providers) with warehouse management and shipping automation software. Founded in 2013 and bootstrapped to profitability, the company has grown to ~$5M ARR across 300 paying customers through primarily word-of-mouth marketing, with expansion revenue driving most growth rather than new customer acquisition.