Exa

We're an AI research lab building a search engine for the future

Foundation models and researchY CombinatorPioneer Fund

TIMELINE · MONEY RAISED

Exa | 1075 days from X account to first raise on record

@exaailabs·Raised $352M in 3 sourced rounds·1 signal before the first raise

Money raised, round by round (amounts linked to their source). Pins are dated signals; hover the icons for dates.

Funding rounds

1. May 22, 2026
   Series B+ · $250M · $2.2B valuation
   AAndreessen Horowitz (lead), BBenchmark, LLightspeed, YY Combinator
   Source: exa.ai
2. September 3, 2025
   Series B+ · $85M · $700M valuation
   BBenchmark (lead), LLightspeed, NNVentures (Nvidia), YY Combinator
   Source: fundraisingfox.com
3. July 16, 2024
   Series A · $17M
   LLightspeed (lead), NNVentures (Nvidia), YY Combinator
   Source: exa.ai
4. August 6, 2021
   X account created
5. Summer 2021
   YY Combinator · batch
   Source: ycombinator.com
6. December 16, 2017
   Website created

Founders and team

• JW
  Jeffrey Wang Co-founder

  @wangzjeff · LinkedIn · source: exa.ai
• WB
  Will Bryk Founder

  @WilliamBryk · LinkedIn
• IB
  Ira Bukht Head of Growth
• MH
  Marcus Holm Chief Revenue Officer

Investors

• AAndreessen Horowitzlead investor
• BBenchmarklead investor
• FFelicis
• KKoro Capital
• LLightspeedlead investor
• NNVentures (Nvidia)
• PPioneer Fundaccelerator
• QQuantumLight
• SScott Wu
• TTal Broda
• WWndrCo
• YY Combinatoraccelerator

Companies like Exa

• LLinkup$10M Seed · Mar 2026
• EEkho$17.3M Series A · Jul 2025
• GGlean$150M Series B+ · Jun 2025
• OOptimizeGEO.aiSeed · Oct 2026
• OObsero$1.2M Seed · Oct 2026
• PPromptwatch$6.84M Seed · Jul 2026

Other companies backed by Andreessen Horowitz

• TTutor Intelligence$75M Series B+ · Nov 2026
• NNorthwood$375M Series B+ · Nov 2026
• LLarridin$30M Series A · Nov 2026
• MMidstream Health$20M Series A · Oct 2026
• WWabi$55M Series A · Oct 2026
• HHex$100M Series B+ · Oct 2026

Andreessen Horowitz portfolio →