228 disclosed AI investments map the angel networks of 45 founder, operator and researcher investors

Asked:

“Best angels with big x.com in ai community like Guillaume rauch.”

Asked (follow-up):

“Focus on their disclosed investments. For example Igor babushkin is exa investor. Look deeper and find more angels and more info about their investments”

A live-web scan on 18 October 2026 found 45 recognizable AI-community angels — founders, operators and researchers — and 228 publicly disclosed investor-to-AI-startup pairs across 54 source hosts, with up to ten best-supported investments kept per person. Guillermo Rauch leads with 18 distinct disclosed AI investments; Igor Babuschkin (@ibab), the example asked about, has three. Round amounts are company totals, not personal checks.

Portfolio depth, by investor — click a bar to open the portfolio

multi-source pairs only (2+ pages)

Bar length = distinct disclosed AI investments found. investor Guillermo Rauch & Igor Babuschkin (asked about) filtered out by current filter

Igor Babuschkin — the example, verified

The xAI co-founder (@ibab) has three identified disclosed AI investments in this scan:

Exa — AI search infrastructure; web search API for AI products and agents · siliconvalleyinvestclub.com
RadixArk — infrastructure for training and deploying frontier models; $100M seed, May 2026 · buttondown.com
River AI — AI safety / agentic focus; reported $1B round led by General Catalyst at a $5B valuation, Aug 2026; 5 supporting pages · tepiai.com

Guillermo Rauch has 18 distinct disclosed AI investments — the deepest portfolio found — spanning Black Forest Labs, Pocket, ActionAI, Perplexity AI and Granola. seedtable.com

Elad Gil is the most-mentioned investor in the scan (110 source mentions across 17 disclosed AI investments), making his portfolio the most multiply corroborated. blog.eladgil.com

Aravind Srinivas, Perplexity's CEO, matches Rauch at 18 disclosed investments, including an 8-page-supported ElevenLabs Series A participation. startuptalky.com

Evidence is uneven: 108 of the 228 pairs are supported by two or more pages; the rest are single-source disclosures — the filter above separates them. buttondown.com

All 228 disclosed investor–startup pairs

Investor	X	Startup	AI focus	Round	Date	Pages	Source

Method: live-web scan performed 2026-10-18; 228 disclosed investor–AI-startup pairs covering 45 AI-community angels across 54 source hosts, up to ten best-supported investments kept per investor. “Disclosed investment” means a public source names the person as an investor or round participant; round amounts are company round totals, never personal check sizes, and counts are what this scan found, not complete portfolios. No single URL backs more than 8 rows. X follower counts are third-party snapshots (2026-10-01) and missing for many angels; they are shown only as context. Long AI-focus descriptions are shortened in the chart tooltips for space.

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