Keith Rabois

Managing Director at Khosla Ventures

Reviewed Updated Mar 20, 2026

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Managing Director at Khosla Ventures (post-Founders Fund) with PayPal Mafia pedigree. Operating executive background: LinkedIn, Square, DoorDash investments. Checks $500K-$150M across fintech, marketplaces, real estate. Co-founder of Opendoor; known for hands-on operator support and unconventional founder conviction.

Location Miami Beach, FL
Check Size $500K-$150M
Last Verified Investment Sekai (Series A) — Jun 3, 2026
Social @rabois LinkedIn
Stage Focus
seed series-a series-b
Sector Focus
fintech marketplaces consumer real-estate-tech healthcare e-commerce

Background

Keith Rabois was born on March 17, 1969, and raised in Edison, New Jersey 1. He studied political science at Stanford University, receiving his B.A. in 1991, where he became acquainted with Peter Thiel, then co-founder of The Stanford Review 12. He earned a J.D. with honors from Harvard Law School in 1994 23.

Rabois began his career as a litigator at Sullivan & Cromwell and served as a law clerk for the U.S. Court of Appeals, Fifth Circuit 3. He is considered a member of the “PayPal Mafia,” having served as EVP of Business Development, Public Affairs & Policy at PayPal 23.

After PayPal, Rabois held operating roles at several major technology companies. He served as VP of Business & Corporate Development at LinkedIn from January 2005 to May 2007 13. He then joined Square as Chief Operating Officer in 2010, departing in January 2013 13.

In March 2013, Rabois joined Khosla Ventures as a partner, where he led first institutional investments in DoorDash, Affirm, and Faire, and invested early in Stripe 34. He co-founded Opendoor, the iBuying real estate platform, during this period 3. He departed Khosla in February 2019 to join Founders Fund as a general partner 5, where he led investments in Ramp, Trade Republic, and Aven 3.

In 2021, while at Founders Fund, Rabois co-founded OpenStore, a Miami-based retail holding company that acquires Shopify brands, serving as CEO 6. OpenStore raised $75 million at a $750 million valuation but later cut its valuation to $50 million amid challenges in the e-commerce aggregator market 67.

Rabois returned to Khosla Ventures in January 2024 as one of five managing directors 48. As of September 2025, he rejoined the board of Opendoor as Chairman 9. He is consistently ranked on the Forbes Midas List, as high as #4 in the U.S. and #8 globally 3.

Stated Thesis

(Self-reported: These represent what Rabois says publicly about his investing approach. See Inferred Thesis for analysis of actual investment behavior.)

Rabois’s stated investment philosophy emphasizes several themes:

  • Backing contrarian, ambitious ideas: Rabois has stated: “I tend to like things that are super ambitious, that are almost ridiculous” and “I want half of my VC friends to laugh at an investment I make” 10.

  • Obsessive founder conviction: Rabois’s ideal founder is “someone who has a specific idea they have to pursue that they can’t stop thinking about” 10.

  • The “barrels and ammunition” framework: Rabois’s most widely cited management concept argues that company velocity is limited by “barrels” — people who can independently take ideas from inception through execution. He states: “Most great people are actually ammunition, but what you need in your company are barrels. You can only shoot through the number of unique barrels that you have” 11.

  • Value proposition strength: Rabois advises founders to focus on “How do I make the value proposition more compelling?” noting that many companies fail because their value proposition is too weak 10.

  • Co-founder alignment on first principles: Rabois recommends: “Always work with someone who agrees on first principles. You cannot be debating first principles all the time in a startup. It’s incredibly destructive” 10.

  • Concentrated, conviction-driven bets: Rabois focuses obsessively on identifying top 1% talent and makes concentrated bets when his conviction is strong rather than spreading investments widely 10.

Inferred Thesis

The analysis below is based on 26 verified investments personally attributed to Rabois across his angel investing, Khosla Ventures, and Founders Fund tenures. This represents a partial view — Rabois has claimed involvement in a company worth over $1 billion every year for 23 consecutive years 3.

Sector concentration (based on 26 verified investments): - Fintech / payments: 5 of 26 (19%) — Affirm, Stripe, Ramp, Trade Republic, Aven - Marketplaces / e-commerce: 5 of 26 (19%) — DoorDash, Faire, Wish, OpenStore, Eventbrite - Real estate tech: 2 of 26 (8%) — Opendoor, Homebase - Consumer / social: 4 of 26 (15%) — Airbnb, YouTube, Reddit, Quora - Enterprise / data: 3 of 26 (12%) — ThoughtSpot, Piazza, Webflow - Healthcare: 2 of 26 (8%) — Forward Health, HealthTap - Transportation: 2 of 26 (8%) — Lyft, Xoom - Other (education, etc.): 3 of 26 (12%) — Udemy, Palantir, Teespring

Key patterns:

  • Fintech and marketplace dominance: 10 of 26 verified investments (38%) fall into fintech or marketplace categories. Rabois’s PayPal and Square background gives him deep operating expertise in payments, which shows in his portfolio weighting.

  • Operator-investor hybrid: Unlike most VCs, Rabois has been a senior operator at PayPal, LinkedIn, Square, and OpenStore. He frequently co-founds companies (Opendoor, OpenStore) alongside investing, blurring the line between operator and investor.

  • Stage distribution: Rabois invests across stages — from seed (DoorDash, Faire, Webflow, Opendoor) through Series A and B, with check sizes ranging from $500K to $150M and a target of $25M 12. His earliest investments (YouTube, Airbnb, Palantir) were personal angel bets.

  • “PayPal Mafia” co-investor network: Rabois frequently co-invests with other PayPal alumni including Peter Thiel, Reid Hoffman, and Max Levchin. His move to Founders Fund reinforced this pattern, as did investments in Palantir.

  • Geographic shift to Miami: After relocating to Miami in 2020, Rabois has championed the city as a startup hub. He claims 11% of U.S. seed investments now originate from Miami 13.

  • Design-forward companies: Signal by NFX notes Rabois values “design-forward companies” 12, consistent with his investments in consumer products with strong UX (Square, Opendoor, Ramp).

  • Board service pattern: Rabois has served on boards at Reddit (2012-2019), Yelp (through IPO), Xoom (through IPO), and currently sits on boards at Ramp and Faire 3.

  • Notable gap: Despite his stated preference for “ridiculous” and contrarian ideas, Rabois’s actual portfolio is weighted toward proven business models (fintech, marketplaces, consumer). His most contrarian bet, OpenStore, resulted in a 95% valuation cut 7.

Portfolio

Company Stage Year Sector Status Source
YouTube Angel ~2005 Consumer / Video Acquired (Google, 2006) 3
Palantir Angel ~2005 Enterprise / Data Public (NYSE: PLTR) 3
LinkedIn Operating (VP) 2005 Professional Network Acquired (Microsoft, 2016) 13
Eventbrite Angel ~2008 Events / Marketplace Public (NYSE: EB) 3
Airbnb Angel ~2009 Marketplace / Travel Public (NASDAQ: ABNB) 3
Lyft Angel ~2012 Transportation Public (NASDAQ: LYFT) 3
Quora Angel ~2012 Consumer / Q&A Active 1
Reddit Angel / Board 2012 Consumer / Social Public (NYSE: RDDT) 3
Udemy Angel ~2012 Education / Marketplace Public (NASDAQ: UDMY) 3
Wish Angel ~2013 E-commerce Public (NASDAQ: WISH) 1
Opendoor Seed (co-founder; $9.95M, Khosla-led) 2014-07-07 Real Estate Tech Public (NASDAQ: OPEN) 3921
DoorDash Seed ($2.4M, Khosla-led with Charles River) 2013-09-30 Marketplace / Delivery Public (NYSE: DASH) 3422
Affirm Series A ~2014 Fintech / BNPL Public (NASDAQ: AFRM) 34
Stripe Early stage ~2014 Fintech / Payments Active 34
ThoughtSpot Series B ~2015 Enterprise / Analytics Active 4
Forward Health Series A ~2016 Healthcare Active 4
HealthTap Series B ~2016 Healthcare / Telemedicine Active 4
Piazza Series B ~2016 Education / Social Active 4
Teespring Series B ~2016 E-commerce / Print Active 4
Webflow Seed ($1.5M, Khosla + Draper) 2014-03-11 Developer Tools / No-code Active 423
Faire Seed ~2017 Marketplace / Wholesale Active 34
Homebase Series A ~2017 SMB / Workforce Active 4
Scribd Series C ~2017 Consumer / Reading Active 4
Ramp Series A ($15M, Founders Fund-led; $25M total) 2020-02-12 Fintech / Corporate Cards Active 324
Trade Republic Growth ~2021 Fintech / Brokerage Active 3
Aven Series A ~2021 Fintech / Credit Active 3
Lava Series A ($10M, Khosla + Founders Fund co-led) 2024-12-09 Fintech / Bitcoin Lending Active 142526
Factory Series C ($150M, Khosla led; board seat) 2026-04-16 AI / Developer Tools Active 1927
Sekai Series A ($20M, co-led with Connect Ventures) 2026-06-03 AI / Consumer / Developer Tools Active 2028
Runlayer Seed (led with Felicis, $11M) 2025-11-17 AI / Enterprise AI Governance / Security Active 2930

In Their Own Words

“I tend to like things that are super ambitious, that are almost ridiculous. I want half of my VC friends to laugh at an investment I make.” — Keith Rabois, Venture Stories podcast with Erik Torenberg 10

“Always work with someone who agrees on first principles. You cannot be debating first principles all the time in a startup. It’s incredibly destructive.” — Keith Rabois, Venture Stories podcast 10

“Most great people are actually ammunition, but what you need in your company are barrels. You can only shoot through the number of unique barrels that you have.” — Keith Rabois, Stanford lecture / SaaStr 11

“You cannot build a company where the two most important people in the company are fundamentally disagreeing about the value of various other people in the company.” — Keith Rabois, Venture Stories podcast 10

What Founders Say

No independently sourced founder testimonials found. Rabois is widely recognized by peers and industry observers for his operating expertise and high conviction investing style, but no direct quotes from portfolio company founders about their experience working with him were located during research.

Connections

  • Chairman of the Board, Opendoor Technologies (OPEN) — co-founded the company with Eric Wu; rejoined board as Chairman in September 2025 9
  • Board member, Affirm Holdings (AFRM) (2013–2025) — served on the board since the company’s founding alongside Max Levchin (CEO, fellow PayPal Mafia member); resigned effective June 2025 1516
  • Board member, Ramp — led the Series A investment while at Founders Fund; continues to represent Founders Fund on the board after returning to Khosla Ventures 34
  • Board member, Faire — led the seed investment at Khosla Ventures 34
  • Board member, Trade Republic — represents Founders Fund on the board of the European neobroker 4
  • Former board member, Reddit (2012–2019) — early angel investor 3
  • Former board member, Yelp — served through the company’s IPO 317
  • Former board member, Xoom — served through the company’s IPO (acquired by PayPal in 2015) 317
  • PayPal Mafia network — former EVP at PayPal alongside Peter Thiel, Elon Musk, Reid Hoffman, and Max Levchin; this network is a primary co-investment and deal-flow channel 12
  • Former VP, LinkedIn (2005–2007) — worked under Reid Hoffman during LinkedIn’s early growth phase 13
  • Former COO, Square (2010–2013) — worked alongside Jack Dorsey 13
  • Stanford University — B.A. 1991; connected with Peter Thiel through The Stanford Review 12
  • SaaStr Annual — recurring speaker on team-building and operational excellence 18

Sources

  1. Keith Rabois Wikipedia article (information confirmed via multiple sources), accessed March 2026. https://en.wikipedia.org/wiki/Keith_Rabois↩↩↩↩↩↩↩↩↩↩↩

  2. History Tools, “Keith Rabois — The PayPal Mafioso Turned Startup Wizard,” accessed March 2026. https://www.historytools.org/people/keith-rabois-complete-biography↩↩↩↩↩

  3. Khosla Ventures, “Keith Rabois” team profile, accessed March 2026. https://www.khoslaventures.com/team/keith-rabois↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩

  4. TechCrunch, “Why Keith Rabois just left Founders Fund for Khosla Ventures,” January 9, 2024. https://techcrunch.com/2024/01/09/keith-rabois-dishes-on-his-surprising-return-to-khosla-ventures-after-leaving-the-firm-in-2019-for-founders-fund/↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩

  5. TechCrunch, “Keith Rabois joins Founders Fund amid transition at the firm,” February 20, 2019. https://techcrunch.com/2019/02/20/keith-rabois-is-leaving-khosla-ventures-for-founders-fund/↩

  6. Axios, “Keith Rabois’ new startup OpenStore will buy up e-commerce businesses,” March 17, 2021. https://www.axios.com/2021/03/17/keith-rabois-startup-ecommerce↩↩

  7. CNBC, “OpenStore’s demise marks endgame for once-booming e-commerce aggregator market,” August 8, 2025. https://www.cnbc.com/2025/08/08/openstore-demise-endgame-for-once-booming-ecommerce-aggregator-market.html↩↩

  8. The Twenty Minute VC, “20VC Exclusive: Keith Rabois on Rejoining Khosla Ventures,” January 2024. https://www.thetwentyminutevc.com/keith-rabois-2↩

  9. Opendoor Investor Relations, “Opendoor Names Kaz Nejatian as CEO; Founders Rabois and Wu Rejoin Board,” September 2025. https://investor.opendoor.com/news-releases/news-release-details/opendoor-names-kaz-nejatian-ceo-founders-rabois-and-wu-rejoin↩↩↩

  10. Podcast Notes, “Keith Rabois on How He Invests, Forming a Founding Team, and Funding ‘Ridiculous Ideas’,” Venture Stories with Erik Torenberg, accessed March 2026. https://podcastnotes.org/venture-stories/keith-rabois-venture-stories-erik-torenberg-vc/↩↩↩↩↩↩↩↩

  11. The Daily Coach, “Barrels vs. Ammunition,” accessed March 2026. https://www.thedaily.coach/p/barrels-ammunition-keith-rabois↩↩

  12. Signal by NFX, “Keith Rabois Investing Profile,” accessed March 2026. https://signal.nfx.com/investors/keith-rabois↩↩

  13. TechCrunch, “Keith Rabois says Miami is still a great place for startups, even as a16z leaves,” September 12, 2024. https://techcrunch.com/2024/09/12/keith-rabois-says-miami-is-still-a-great-place-for-startups-even-as-a16z-leaves/↩

  14. Fortune, “As crypto comes roaring back, Khosla Ventures’ Keith Rabois is making a bet on Bitcoin lending,” December 9, 2024. https://fortune.com/2024/12/09/bitcoin-lending-lava-khosla-keith-rabois-founders-fund-venture/↩

  15. Affirm Holdings, Inc., “Keith Rabois — Board Member,” investor relations page, accessed March 2026. https://investors.affirm.com/board-member/keith-rabois↩

  16. MarketScreener, “Affirm Holdings, Inc. Announces Board Changes,” June 2025. https://www.marketscreener.com/quote/stock/AFFIRM-HOLDINGS-INC-117540803/news/Affirm-Holdings-Inc-Announces-Board-Changes-50232906/↩

  17. Keith Rabois, Speakerpedia profile, accessed March 2026. https://speakerpedia.com/speakers/keith-rabois↩↩

  18. SaaStr, “Keith Rabois (Khosla Ventures): Building Amazing Teams (Video + Transcript),” accessed March 2026. https://www.saastr.com/keith-rabois-khosla-ventures-building-amazing-teams-video-transcript/↩

  19. TechCrunch, “Factory hits $1.5B valuation to build AI coding for enterprises,” April 16, 2026. https://techcrunch.com/2026/04/16/factory-hits-1-5b-valuation-to-build-ai-coding-for-enterprises/↩

  20. GlobeNewswire, “Sekai Raises $26M in Seed and Series A as Users Create, Play, and Remix 15 Million Mini-Apps,” June 3, 2026. https://www.globenewswire.com/news-release/2026/06/03/3306441/0/en/Sekai-Raises-26M-in-Seed-and-Series-A-as-Users-Create-Play-and-Remix-15-Million-Mini-Apps.html↩

  21. TechCrunch, “Keith Rabois’ Homebuying Startup OpenDoor Raises $9.95M From Everyone,” July 7, 2014, accessed June 2026. https://techcrunch.com/2014/07/07/opendoor/ — Confirms Opendoor seed close date and Khosla-led $9.95M round. ↩

  22. TechCrunch, “DoorDash Raises $2.4M To Improve Food Delivery,” September 30, 2013, accessed June 2026. https://techcrunch.com/2013/09/30/door-dash-raises-2-4m/ — Confirms DoorDash seed at $2.4M led by Khosla Ventures (Rabois) and Charles River Ventures. ↩

  23. TechCrunch, “Responsive Website Builder Webflow Raises $1.5 Million From Khosla, Tim Draper & Others,” March 11, 2014, accessed June 2026. https://techcrunch.com/2014/03/11/responsive-website-builder-webflow-raises-1-5-million-from-khosla-tim-draper-others/ — Confirms Webflow seed date and Khosla Ventures participation (Rabois + Ben Ling led at Khosla per Rabois Medium). ↩

  24. Ramp press release via PRWeb, “Ramp Launches the First Corporate Card that Helps Companies Spend Less,” February 12, 2020, accessed June 2026. https://www.prweb.com/releases/ramp_launches_the_first_corporate_card_that_helps_companies_spend_less/prweb16901844.htm — Confirms $15M Series A led by Founders Fund (Keith Rabois) with $25M total raised at launch. ↩

  25. Lava blog, “We’ve Raised Our $10M Series A from Founders Fund and Khosla Ventures,” accessed June 2026. https://www.lava.xyz/blog/announcing-our-series-a — Lava’s own announcement of the $10M Series A co-led by Khosla Ventures (Keith Rabois) and Founders Fund, December 9, 2024. Additional angels: Vinod Khosla, Joey Krug, Jon Chu, Peter Thiel. ↩

  26. Crunchbase, “Series A — Lava,” accessed June 2026. https://www.crunchbase.com/funding_round/lava-ede8-series-a–7c04eb9e — Cross-reference confirming December 9, 2024 Lava Series A. ↩

  27. The AI Insider, “Factory Raises $150M at $1.5B Valuation to Scale AI Coding Agents for Enterprises,” April 17, 2026. Accessed June 2026. https://theaiinsider.tech/2026/04/17/factory-raises-150m-at-1-5b-valuation-to-scale-ai-coding-agents-for-enterprises/ — Confirms Factory $150M Series C April 16-17, 2026 led by Khosla Ventures, with Sequoia, Insight Partners, Blackstone participating; Keith Rabois joined board. ↩

  28. Yahoo Finance/GlobeNewswire, “Sekai Raises $26M in Seed and Series A as Users Create, Play, and Remix 15 Million Mini-Apps,” June 3, 2026. Accessed June 2026. https://finance.yahoo.com/sectors/technology/articles/sekai-raises-26m-seed-series-213200757.html — Confirms Sekai Series A $20M co-led by Keith Rabois (Khosla Ventures) and Nicole Quinn (Connect Ventures), with 359 Capital, Parable VC, 645 Ventures participating. ↩

  29. TechCrunch, “MCP AI agent security startup Runlayer launches with 8 unicorns, $11M from Khosla’s Keith Rabois and Felicis,” November 17, 2025. Accessed June 2026. https://techcrunch.com/2025/11/17/mcp-ai-agent-security-startup-runlayer-launches-with-8-unicorns-11m-from-khoslas-keith-rabois-and-felicis/ — Confirms Keith Rabois (Khosla Ventures) and Felicis co-led Runlayer’s $11M seed on November 17, 2025. Third-time founder Andrew Berman (formerly Nanit, Vowel) with co-founders Tal Peretz and Vitor Balocco (ex-Zapier). Eight unicorn/public customers including Gusto, dbt Labs, Instacart, Opendoor. ↩

  30. SecurityWeek, “Runlayer Emerges From Stealth Mode With $11 Million in Funding,” November 2025. Accessed June 2026. https://www.securityweek.com/runlayer-emerges-from-stealth-mode-with-11-million-in-funding/ — Independent confirmation: “The investment round was led by Khosla Ventures general partner Keith Rabois and Felicis, with additional support from several angel investors.” ↩

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