Investing Profile

Yan-David Erlich(181)

InvestorAngel

COO & CRO at Weights & Biases: The AI Developer Platform

San Francisco, California

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Yan-David Erlich's investing connections

46 Investors

Connected to Satya Patel (Homebrew), Aileen Lee (Cowboy Ventures), Pete Flint (NFX), and 43 other investors on Signal.

Networks Yan-David is a member of

Google Network

312 CONNECTIONS

Stanford University Graduate School of Business Network

303 CONNECTIONS

Battery Ventures Network

36 CONNECTIONS

Trinity Ventures Network

17 CONNECTIONS

Rice University Network

17 CONNECTIONS

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Current Investing Position

Angel

Investment Range

$10K - $250K

Sweet Spot

$100K

Investments On Record

Yan-David Erlich's Investments On Record (17)

Company	StageDateRound Size	Total Raised
Axiom Math AI	SeedOct 2025$64M	$64M
Unblocked	Series AMay 2025$20M	$28M
Co-investors: John Lilly (Greylock), David Johnson (Intel Capital), Dave Johnson (Intel Capital), Bubba Murarka (DFJ), Rob Toews (Radical Ventures), Milun Tesovic (Expa), Mike Abbott, Quinn Slack, Stewart Butterfield, Mike Vernal, Eric Futoran, Nitay Joffe
Twin	Pre SeedJan 2024$3M	$3M
Co-investors: Matthew Hartman (Factorial), Guillaume Houzé (Motier Ventures), Nicolas Essayan (Motier Ventures), Quentin Nickmans (eFounders), Rand Hindi, Florian Douetteau, Alexandre Scialom, Thibaud Elziere, Charles Gorintin
Abacus.AI	Series COct 2021$50M Series BNov 2020$22M	$90M
Co-investors: David Cahn (Sequoia Capital), Deep Nishar (General Catalyst), Avichal Garg (Electric Capital), Jerry Yang (AME Cloud Ventures), Ram Shriram (Sherpalo Ventures), Mike Volpi (Hanabi Capital), Erica Ruliffson Schultz (Operator Collective), Jerry Yang (Hardware Club), Eric Schmidt (Innovation Endeavors), Mariam Naficy (Heretic Ventures), Jon Sakoda (Decibel Partners), Josh Shirazi (Alkeon Capital), Keval Desai (InterWest), Paul Buchheit (Y Combinator)
Weights & Biases	Series COct 2021$140M	$250M
Co-investors: Casber Wang (Sapphire Ventures), Aydin Senkut (Felicis Ventures), David Cahn (Sequoia Capital), George Mathew (Insight Partners), Jay Simons (Bond), Tom Preston-Werner (Preston-Werner Ventures), Nat Friedman (C2 Investment), Richard Socher (AIX Ventures), Pieter Abbeel (AIX Ventures), Ed Roman (Hack VC), Daniel Gross (C2 Investment), Jeff Hammerbacher
Infinitus Systems	Series AFeb 2021$21M	$100M
Co-investors: Scott Kupor (Andreessen Horowitz), Krishna Yeshwant (GV (Google Ventures)), Morgan Livermore (Quiet Capital), Diego Oppenheimer, Gokul Rajaram
Impira	Series BMar 2019$25M	$32M
Co-investors: Steve Herrod (General Catalyst), Barry Eggers (Lightspeed Venture Partners)
stensul	Series AJun 2018$7M	$7M
Co-investors: Jeff Clavier (Uncork Capital), Chris Fralic (First Round Capital), Alex Gurevich (Javelin Venture Partners), David Wanek (Western Technology Investment), Patrick Meenan (Arthur Ventures)