VC fund for CEOs by CEOs.

Joined October 2019
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🚀 Some big news: Paul Johnson is joining Flex Capital as our newest GP! Paul founded Lemonaid Health, a pioneering telehealth platform that he scaled and sold for $400M. His track record as a founder and investor perfectly fits Flex’s unique approach. Welcome Paul!
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Amazing milestone from @dubdotco! $10M in partner payouts just 6 months after launch 🚀🔥
10 Dec 2025
If you had told me when I first started @dubdotco that we would reach $10M in partner payouts in 6 months, I wouldn't have believed you. Immensely grateful to our customers and partners for all the feedback, trust, and support. Next stop: $50M payouts 😎
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Flex Capital retweeted
Thrilled to introduce @SoxtonAI! We help founders nail legal at the speed of innovation without the price of big law. I am a founder building the type of law firm I'd want to use. Thank you @meliarobin and @BusinessInsider for covering our launch! businessinsider.com/soxton-a…
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The @boltdotnew story: $0 → $40M ARR in 5 months with 20 people How? • 7 years building tech nobody else had • First usage-based AI pricing • Launched a bare bones MVP • AI handles 90% of support Eric Simons breaks it down on World of DaaS 🎙️👇 youtu.be/BpB7P5gKrsc
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Legal shouldn’t slow businesses down. GitLaw Agent brings lawyer-vetted legal drafting reviews into one seamless workflow --> free and ready to go. Proud to support this launch! ⚡📄
5 Nov 2025
🚀 Now live on @ProductHunt! Meet GitLaw Agent, the AI Legal Companion built for business. Chat with GitLaw to instantly draft or review legal documents. Check us out on Product Hunt 👉producthunt.com/products/git… #AI #ProductHunt
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Flex Capital retweeted
Browser Use LLM is now 5x cheaper! It's now the cheapest (and fastest) model we offer for getting your tasks done. One step costs only $0.002 🤯 Enjoy.
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Flex Capital retweeted
13 Oct 2025
🚀 We’re live on Product Hunt! Traycer brings Spec-Driven Development to AI coding — helping you plan, verify, and orchestrate agents for production-ready work. Join us on Product Hunt, share your thoughts, and help shape the future of AI coding. 👉 producthunt.com/products/tra…
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Flex Capital retweeted
I'm hosting a dinner for PRE-SEED founders on Oct 21 with @flexcapital This includes folks who are *thinking* of building their next thing. We want to meet you! Comment/DM for info.
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Nilo is redefining what's possible in digital creation: from text/image/voice to interactive 3D world in seconds. Proud to join their $4M seed! 🚀
🔥Big news! Nilo raised a $4M seed round! We started Nilo with a simple idea: making a game should be as fun as playing one. With this funding, we’re moving faster toward giving the next generation of builders the tools to create and share instantly. I’m incredibly proud of the team, and enormously grateful to our partners @supercell, @speedrun, @Kfundvc, @flexcapital, @NextTier_vc, @EssenceVenture, @CoreNestVC, @ShillingCapital, @EarthlingVC, @PrototypeCap, @scriptcapital and our angels – @Blake_Hall , @MattBilbey75, @OfficialLoganK, @SafiBahcall, Marc Petit, Denes Ban
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🎧New podcast alert!‼️ On World of DaaS this week, we asked OpenAI CSO @jasonkwon about the future of AI power needs, compute costs, and data policy. Founders: if your roadmap assumes “compute gets cheaper,” this is a must listen: youtu.be/AGVRkbZjhSs
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Flex Capital retweeted
18 Sep 2025
Today we're releasing an experiment: manyminiapps 1. You don't need to sign up 2. You write one prompt 3. You get an app back with it's on database, un under 2 minutes. It's the world first massively multiplayer online, mini app maker.
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Flex Capital retweeted
Big news: Hello Patient has raised a $22.5M Series A led by @scalevp, with participation from all existing investors and new partners @alumniventures & FirstLook Partners. In just 16 months, we’ve gone from idea to serving 100Ks of patients monthly across urgent care, primary care, mental health, virtual care, medspas, and vet care. Our mission is to 10x patient access help providers scale practices without scaling headcount. Grateful to our investors @8VC, @blingcapital, @maxventuresvc, @flexcapital, and @RemusCapital for doubling down on us. And none of this would be possible without our team and partners. Let’s build the future of patient communication.
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Spotlight on @coderabbitai @sygaldry_tech @ Protege AI 🕵️📚👨‍💻
I asked a few founders & investors: "What are 1-2 interesting startups for software engineers & researchers to join, beyond the big labs?" 1. MatX - chips for LLM training and inference - Founders: Reiner Pope, Mike Gunter (both ex-Google) 2. Prosper - domestic-work robots for households and businesses - Founder: Shariq Hashme (ex-OpenAI) 3. Manifest - core ml research lab - Founders: Jacob Buckman, Carles Gelada, Sean Zhang 4. Physical Intelligence - foundation models for robots - Founders: Karol Hausman, Sergey Levine, Chelsea Finn, Brian Ichter, Quan Vuong, Adnan Esmail, Lachy Groom 5. Mechanize - rl environments with an initial focus on sw engineering - Founders: Tamay Besiroglu, Matthew J Barnett, Ege Erdil 6. Lindy - AI agents for workflow automation - Founder: Flo Crivello 7. Forge - workflow automation for large enterprises - Founder: Markie Wagner 8. Reflection - agentic models with an initial focus on code - Founders: Misha Laskin, Ioannis Antonoglou 9. Fractal Software - venture studio building vertical SaaS companies - Founders: Nate Baker, Mike Furlong 10. Thinking Machines Lab - product-focused AI lab - Founders: Mira Murati, Barret Zoph, John Schulman, Lilian Weng, Andrew Tulloch, Luke Metz 11. Meter - managed internet and secure networking for offices hardware and software - Founders: Anil & Sunil Varanasi (brothers :)) 12. Allen Institute for AI (AI2) - nonprofit AI research - Founder: Paul Allen (1953-2018) 13. Abridge - AI medical scribe - Founders: Shivdev Rao, Sandeep Konam, Zachary Lipton, Florian Metze 14. Higgsfield - video gen models and apps (mobile focused) - Founder: Alex Mashrabov 15. Black Forest Labs - FLUX image models - Founders: Robin Rombach, Patrick Esser, Andreas Blattmann 16. LMArena - LLM evals for big labs - Founders: Anastasios N Angelopoulos, Wei-Lin Chiang, Ion Stoica 17. Marathon Fusion - fuel for future fusion plants (and creating gold?) - Founders: Kyle Schiller, Adam Rutkowski 18. Luma AI - Dream Machine video model - Founders: Amit Jain, Alex Yu 19. Aravolta - software for data center monitoring and control - Founders: Margarita Groisman, Jack Sutton 20. Harmonic - AI math and reasoning lab - Founders: Vlad Tenev (Robinhood co-founder), Tudor Achim 21. Socket - prevent vulnerabilities from dependencies in your code - Founder: Feross Aboukhadijeh 22. Expo - framework and cloud platform for making cross platform apps - Founders: Charlie Cheever, James Ide 23. Koah Labs - native ads network for AI chatbots - Founders: Nic Baird, Herrick Fang, Mike Choi 24. Brisk Teaching - AI tool for teachers feedback, lesson plans and assessments - Founder: Arman Jaffer 25. Anysphere (Cursor) - AI code editor - Founders: Michael Truell, Aman Sanger, Sualeh Asif, Arvid Lunnemark 26. Letta - memory for ai agents - Founders: Charles Packer, Sarah Wooders 27. Baseten - serverless GPU hosting - Founders: Tuhin Srivastava, Amir Haghighat, Philip Howes, Pankaj Gupta 28. Mithril (prev ML Foundry) - GPU compute for training and inference - Founder: Jared Quincy Davis 29. Quill Meetings - AI notetaker for meetings - Founder: Michael Daugherty, add Nick Adams 30. Pluralis Research - multi-participant training of models, for cryptocurrency protocols I think - Founder: Alexander Long 31. Linear - issue and roadmap tracking - Founders: Karri Saarinen, Jori Lallo, Tuomas Artman 32. Qualia - real estate closing platform for title escrow and lenders - Founders: Nate Baker, Joel Gottsegen, Lucas Hansen 33. CodeRabbit - AI code review for pull requests - Founders: Harjot Singh Gill, Guritfaq Singh 34. Sygaldry Technologies - quantum computing for AI inference and training - Founders: Chad Rigetti, Idalia Friedson 35. HealthMC - AI powered medical coding - Founders: Ian Blumenfeld, Brian Johnson, Judah Rabinowitz 36. Lorikeet AI - AI that does customer support ticket resolution - Founders: Steve Hind, Jamie Hall 37. RL Core - RL for optimizing water and wastewater plants - Founders: Martha White, Adam White, Alden Christianson 38. Protege AI - a marketplace for AI datasets - Founders: Bobby Samuels, Travis May, Engy Ziedan, Richard Ho 39. Periodic Labs - AI driven materials discovery for energy and electronics - Founders: Ekin Dogus Cubuk, Liam Fedus (Ekin is ex GDM and Liam is ex OAI) Thanks to the nominators: @calvinfo, @tamaybes, @Altimor, @lachygroom, @finbarrtimbers, @aranibatta, @MorganSchwanke, @AnjneyMidha, @jacobmbuckman, @ROWGHANI, @NWischoff, @ccheever, @herkhere, Nate Baker, @ianblu1, @dolaoseb, Anon, @FlintCasey, @cjc, @LilyPetherick & @auren
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Flex Capital retweeted
12 Aug 2025
Introducing Dub Partners. The modern way to partner with affiliates, influencers, and your users. To date, we've tracked $9M in affiliate revenue for @framer, @superhuman, @tellahq, @anara, @privy etc. Ready to take your partner program to the next level? Sign up below.
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Fantastic event! Thanks for having us @join_ef
Replying to @Claudias_Tweets
and wrapping up with Paul Johnson, GP @flexcapital sharing his story and how to make the most of moving to the bay area
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Founders, a “standard” clause in your term sheet could quietly strip away your power... What to do: 🔸Don’t skim the “boring” parts of your term sheet 🔸Ask about voting rights tied to employment 🔸Use free tools like Git.Law to instantly flag hidden clauses
11 Aug 2025
Founders: there’s a clause in your term sheet that could silently strip you of your voting rights. Even if you own a majority of your company. Even if you’re the one who built it. And most founders have no idea it’s there. Let’s break it down 🧵
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This week's World of DaaS: @airtable CEO @howietl breaks down the No Code playbook: 🔧 From no code to AI-native development ⚡ AI model routing strategies 💰 SaaS pricing for AI era 🎯 Founder mode insights youtu.be/5trufRIbm-A
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🔥@Felt just launched AI that turns natural language into working spatial apps. No code required, 75% faster deployment. This is how you unlock geospatial intelligence for every industry. felt.com/blog/felt-ai-build-…
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🎧 New episode! @superpower founder @maxmarchione breaks down the next generation of healthcare tech. Key insights: scaling infrastructure for personalized medicine, making sense of in-depth health data, and the shift to prevention-focused models. worldofdaas.com/p/superpower…

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