Find 67 AI Pre-Seed Angel Investors in San Francisco

Global micro-VC and accelerator. 3000+ companies in 78 countries. $2.7B+ AUM.

Partner at Y Combinator. Co-founder of Tutorspree. Expert in marketplaces and B2B.

VP of Developer Relations (DevRel & DX) at Rapid. Google Developers Advisory Board & AI Dev Panel founding member. Two exits, one acquisition. My software serves millions of developers, proud code contribution to NASA Ingenuity Mars mission. I invest time and money in developer-focused startups with diverse teams, bold ideas, and automation. My recent investment was with Resend. (VP of DX at Rapid)

I run basecase, an early-stage venture firm by builders, for builders. We help founders nail their "base case"—recruiting their first engineers, securing their first customers, and raising their first institutional round—and "recurse" onwards. I invest $500k-5M checks. (Founder at basecase)

B2B and enterprise-focused accelerator in Silicon Valley. 6-month program with $25K funding.

General Partner at Initialized Capital. Expert in enterprise and developer infrastructure.

I'm a 2x founder with an exit (WANNA to Farfetch), currently experimenting with new projects and helping/investing in other founders via http://FundraisingHackers.com. Typical check size is $5-10k. (Founder at FundraisingHackers)

Founder of Dream Machine VC. Former TechCrunch editor. Invests in next-generation internet.

Co-founder of Code.org. Mentor at NEA. Early investor in Facebook, Zappos, Dropbox, airbnb.

Co-founder and CEO of Replit. Angel investor in developer tools and AI-first companies.

Former OpenAI, former Tesla AI. Angel investor and advisor in deep learning and AI.

Partner at Haystack. Expert in seed-stage enterprise and developer tools.

Founder @

I enjoy helping dev tool creators build top-notch teams, figure out go-to-market, and meet other great investors. I've been working on developer tools for most of the past decade as CTO and co-founder of Sourcegraph. I host a podcast featuring creators of dev tools--if you've built something you'd love to share with the developer world, I'd love to have you on the show! (Founder & CTO at Sourcegraph)

Co-founder and CTO of Slack. Angel investor in developer tools and infrastructure.

Founder of Precursor Ventures. Expert in pre-product and pre-seed stage startups.

Founder of Hearsay Social. Angel investor in enterprise SaaS and AI products.

Angel and Partner at Long Journey. Former Founders Fund. Backed SpaceX, Uber, Postmates early.

Partner at Precursor Ventures. Expert in pre-seed and first-check investing.

Partner at Y Combinator. Co-founder of imeem. Expert in early-stage B2B and developer tools.

Former VP of AI at Unity. Angel investor in AI gaming and developer tools.

Founder @

Co-founder of Hustle Fund. Rapid-check pre-seed investor. Expert in speed as a competitive moat.

Co-founder of Village Global and On Deck. Expert in community-led investing.

Co-founder of Twilio. Angel investor in developer infrastructure and cloud tools.

I’m currently working as Principal Brand Designer at Vercel, ensuring the maximum visual appeal of all our brands and products, including Next.js and Turborepo. I previously worked at Viacom (MTV, Comedy Central, and Paramount Pictures) and Auth0 and I was involved in the design of JWT and Passport.js. I typically invest $2.5-10k checks in early stage devtool startups focused on tech & design. (Brand Design at Vercel)

President and CEO of Y Combinator. Co-founder of Initialized Capital. Early investor in Coinbase, Instacart.

Board member at DoorDash and Pinterest. Former Square and Facebook. Active angel.

Co-founder of OpenAI. Angel investor in AI infrastructure and safety.

Partner at Y Combinator. Former Airbnb growth lead. Expert in growth and consumer products.

YC Partner. Former Growth PM at Airbnb. Expert in growth and consumer products.

Founder of Rock Health. Pioneer of digital health venture. Mentor and angel in health startups.

World's top biotech accelerator (part of SOSV). Backs early-stage life science founders.

Founder/CEO @

I'm the VP of AI at Vercel, which acquired my startup Turborepo. Prior to that, I was the Engineering Lead at The Palmer Group, a strategy, design, and software engineering firm. I’m an educator, speaker, and OSS enthusiast with many popular OSS projects, and I invest 25-100k checks in devtool and enterprise SaaS startups. (VP of AI at Vercel)

Co-founder and CEO of Ironclad. Angel investor in legal tech and enterprise SaaS.

I'm the VP of Developer Experience at Vercel, where my team helps developers build a faster web. I lead community and education for the React framework Next.js and I’m an open-source contributor. I'm also an advisor (mostly on dev communities) and investor in early stage startups where I invest small checks in tools making web development faster. (VP of DX at Vercel)

Former Airbnb PM. Creator of Lenny's Newsletter. Angel investor and advisor in SaaS.

Deep background in AI, SWE, and Developer Relations. Helping companies scale in the DevTools and AI space based on my experiences in both areas at places like OpenAI, NASA, Apple, & PathAI. Typical check size is $20k. (DevRel at OpenAI)

Co-founder of Scale AI and CrowdFlower. Angel investor in AI and ML startups.

Founder of Humba Ventures. Pre-seed specialist for technical founders.

I'm the founder of Siennai Analytics, a B2B AI consulting and development company, an early contributor to LangChainAI, and an AI educator (3.5 million people reached through my content so far). I have provided strategic AI consultations to leaders at major institutions including Evercore, BCG, PwC, and more. My speciality is building scalable, production ready AI chatbots that integrate with enterprise private data. I invest in B2B startups and devtools. (Founder & CEO at Siennai Analytics)

Founder and CEO of Zendesk. Angel investor in customer experience and enterprise SaaS.

Co-founder of AngelList. Prolific angel investor. Philosopher of startups and wealth creation.

CEO of Gainsight. Angel investor in customer success and vertical SaaS.

Co-founder of Algolia. Angel investor in developer tools and search infrastructure.

Partner at Pear VC. Former early Dropbox. Expert in hard problems and technical founders.

Co-founder of Y Combinator, the world's most successful startup accelerator. Investor and essayist. Backed Airbnb, Dropbox, Stripe.

Co-founder of Evernote and All Turtles. Angel investor in AI and consumer productivity.

Remote accelerator for exceptional founders worldwide. $4K+ in prizes and services.

Founder of SV Angel. Godfather of Silicon Valley angels. 700+ investments including Google, PayPal.

Partner at XYZ Venture Capital. Ex-Village Global. Expert in deep tech and hard problems.

Head of Bloomberg Beta. Expert in future of work and emerging technologies.

Co-founder of Tech Buzz China. Expert in Chinese tech ecosystem and cross-border investing.

CEO of OpenAI. Former president of Y Combinator. Prolific angel investor in AI and tech.

Co-founder of IronPort. Early investor in PayPal, Uber, SpaceX. Super angel.

CPO of Adobe. Founder of Behance. Angel in design, creator, and early-stage consumer.

Co-founder of Kindred Ventures. Expert in consumer and frontier technology.

I’m a Devrel with a founder background who’s built products like Dub.co, DomainsG.PT, and Novel.sh. I love helping founders with product & strategy, intros to other fantastic AI-focused VCs, and providing access to my network & audience. Some of my past investments include Tinybird, Upstash, Spline, Liveblocks, Cal.com. My typical check size is in the $2K-5K range. (DevRel at Vercel)

Devrel + Dev Community at AWS + 3 unicorns. Editor of Latent.Space, Organizer AI.Engineer Summit. I do $25-75k checks in devtool & Al startups. Examples - Supabase, FlutterFlow, Resend, Railway, Quadratic, Modal, Brightwave, Brev, MatX, Cosine. (Founder at Smol)

Partner at First Round Capital. Former VP of Product at Dropbox, GM at Twitter.

Co-founder of GitHub. Angel investor in developer tools and open-source startups.

Building on my experience as a Founder and CTO, I'm an angel investor who loves supporting fresh startups with checks between $5-15k. Capital isn't all I bring to the table; with my technical background and startup experience, I love helping build solid tech teams & refine product vision. If you're as passionate about tech startups as I am, I'd love to be a part of your journey! (Co-founder at Slync)

Co-founder of Civic Technologies. South African serial entrepreneur and angel in crypto/AI.

World's most prestigious startup accelerator. Backed Airbnb, Stripe, Dropbox, Coinbase, Reddit.

Founder of StationA. Angel in climate tech and energy AI startups.

I have a strong background in Machine Learning, Software Engineering, and community management. Previously, I held the position of senior ML engineer at leading e-commerce companies, as well as serving as CTO & Investor of a Sequoia-led AIGC start-up. Currently, I am assisting Chinese Indie Hackers/Makers in rapidly launching and expanding their projects, while also helping them find customers in the global market. Our collaboration will focus on early validation and rapid scaling. My investment range typically falls between $2K and $10K. (Founder at Velocity1)