Investors › AI Angels › Feross Aboukhadijeh
Feross Aboukhadijeh logo

Feross Aboukhadijeh

AI angel investor · Stanford, United States · feross.org ↗
Feross Aboukhadijeh is the founder and CEO of Socket and a Stanford lecturer. He is an angel investor in AI and developer-focused startups, with 25 investments listed on Crunchbase.
Artificial IntelligenceCybersecurityDeveloper ToolsEnterprise Software
Focus: Seed · Series A · AI · Developer tools · Security · Enterprise infrastructure

About Feross Aboukhadijeh

Background

Feross Aboukhadijeh is an entrepreneur, programmer and open source author. He is the founder and CEO of Socket, which his own site describes as a developer-first security platform that keeps vulnerable and malicious open source dependencies out of the software supply chain. Crunchbase gives his location as Stanford, California, and he is a graduate of Stanford University.

Before Socket he built PeerCDN, a peer-to-peer content delivery network that Yahoo acquired. He has also worked at Quora, Facebook, Yahoo and Intel. He created WebTorrent, a streaming torrent client for the web, and StandardJS, a JavaScript style guide and linter. He once maintained more than 100 npm packages. Other projects include BitMidi and Study Notes. Crunchbase lists him as founder and CEO of Study Notes from 2007 to 2019, and as a member of South Park Commons in 2018.

Socket was founded in 2020. In August 2023 it announced a $20 million Series A led by Andreessen Horowitz, on top of a $4.6 million seed round. Aboukhadijeh also teaches web security (CS 253) at Stanford, where Crunchbase lists him as a visiting lecturer since 2019.

Angel investing track record

Crunchbase lists 25 investments for Aboukhadijeh. It shows 0 lead investments, 0 exits and 0 companies founded under this investor profile. Socket is his operating company, and he is not listed as a fund manager.

Tracxn counts fewer deals, with 4 investments: Platformatic (seed, June 2023), Arcjet (Series A, April 2025), Corridor (seed, August 2025) and Opine (seed, November 2025). The two databases cover different sets of deals, so treat both counts as partial. Tracxn also shows him joining rounds alongside other investors and angels, not leading them.

He has not published a fund size, return figures or a personal investment thesis that we could find.

AI investments

Crunchbase counts 13 AI investments since 2023 out of his 25 total. Its AI portfolio list includes cside, ASYMPTOTE LABS, Doppel, Pincites, EyeTell, Dust, Corridor, Inception, Command Code, Daytona, Arcjet and idler.

One dated example is idler. Tracxn's weekly roundup describes it as a San Francisco developer of reinforcement learning environments that train AI models to code. It reported a $9 million seed round led by Paradigm, with Aboukhadijeh among the named angels. His other AI-related deals sit close to security, infrastructure and developer tooling, which matches his work at Socket.

Socket's own messaging also points to AI. In a LinkedIn post he wrote that AI coding agents are writing code faster and pulling in more open source dependencies.

Investment focus

Public data shows mostly early-stage rounds, with seed and Series A deals in the Tracxn list. Tracxn tags his sectors as Enterprise Applications and Enterprise Infrastructure, and says the companies it tracks are in the United States. The Crunchbase AI list adds developer tools, security and AI model tooling.

He has not published a check size, and Crunchbase does not show the amounts he put in. The round sizes in Tracxn are totals for each round, not his own checks. He also has not publicly said what he looks for in a pitch. Founders who want to approach him will find his work in security and developer tools on his website, GitHub and LinkedIn.

Notable portfolio companies
  • Corridor: listed by Crunchbase as an AI portfolio company. Tracxn lists a seed round in August 2025 of $5.4M with Conviction among the co-investors.
  • Arcjet: listed by Crunchbase as an AI portfolio company. Tracxn lists a Series A in April 2025.
  • Platformatic: Tracxn lists a seed round in June 2023 of $3.5M.
  • Opine: Tracxn lists a seed round on November 26, 2025 of $5M.
  • idler: builds reinforcement learning environments that train AI models to code. It raised a $9M seed led by Paradigm, and he was a named angel.
  • cside, ASYMPTOTE LABS, Doppel, Pincites, EyeTell, Dust, Inception, Command Code and Daytona: named in Crunchbase's AI portfolio list. Dates and round details are not confirmed here.
Sources

AI portfolio

AI companies Feross Aboukhadijeh has backed since 2023, per Crunchbase.
csideASYMPTOTE LABSDoppelPincitesEyeTellDustCorridorInceptionCommand CodeDaytonaArcjetidler

Investing activity

Feross Aboukhadijeh has made 25 investments according to Crunchbase. 13 of those investments since 2023 were in AI companies, including cside, ASYMPTOTE LABS, Doppel, Pincites and EyeTell.

Feross Aboukhadijeh appears in 2 AI deals tracked by the Lounge deals desk. The rounds are mostly Seed, with a median round size of $9M. The most recent are idler (Seed, $9M, Aug 2026) and Command Code (Seed, $5M, Feb 2026).

Feross Aboukhadijeh most often invests alongside Paradigm, Smaiyl Makyshov, Dan Posch and Lynett Capital, and the companies they back on Lounge are mostly in AI.

Deals

2
AI rounds and acquisitions Feross Aboukhadijeh took part in, newest first.

Frequently asked questions about Feross Aboukhadijeh

Who is Feross Aboukhadijeh?

He is the founder and CEO of Socket, a developer-first security platform. He also created WebTorrent and StandardJS and lectures on web security at Stanford.

Does Feross Aboukhadijeh invest in AI startups?

Yes. Crunchbase lists 13 AI investments since 2023 out of 25 total, including Doppel, Pincites, Dust, Corridor, Inception and idler.

What is Feross Aboukhadijeh's check size?

It is not public. Crunchbase and Tracxn show the total size of the rounds he joined, not his own checks.

What stage does Feross Aboukhadijeh invest in?

The deals in public databases are mostly seed and Series A rounds. He is listed as an angel and has no lead investments on Crunchbase.

What sectors does Feross Aboukhadijeh back?

Tracxn tags his sectors as Enterprise Applications and Enterprise Infrastructure. His AI investments include security, developer tools and AI model training.

How can founders contact Feross Aboukhadijeh?

His public channels are his LinkedIn profile, his personal site feross.org and his GitHub page. He has not published a pitch process.

Is Feross Aboukhadijeh an angel investor?

Yes. Feross Aboukhadijeh invests personally as an angel. Crunchbase counts 25 investments.

What AI companies has Feross Aboukhadijeh invested in?

Feross Aboukhadijeh's AI investments include cside, ASYMPTOTE LABS, Doppel, Pincites, EyeTell, Dust, Corridor and Inception. The 2 rounds on Lounge are listed on this page with amounts, dates and co-investors.

Where is Feross Aboukhadijeh based?

Feross Aboukhadijeh is based in Stanford, United States.

What stage does Feross Aboukhadijeh invest at?

In the rounds tracked on Lounge, Feross Aboukhadijeh has invested at Seed, with a median round of $9M.

Paid members see the full Investors ranking, who is writing checks, how many, how much, and their contact details, plus CSV exports. Plans start at $37/mo.
See plans →Log in