V
Valve
Media · Console & PC Gaming · Bellevue, United States · Founded 1996 Decacorn
Valve mafia
Startups founded by Valve alumni
Former Valve employees who went on to start their own companies. Sorted by Dealroom signal score.
David LesperanceUnited States
Jared CheshierUnited States
John VertUnited States
Ilya RosenbergUnited States
Chia Chin LeeUnited States
Jeri EllsworthUnited States
Moby FranckeUnited States
Rick EllisUnited States
Mike HarringtonUnited States
Arun ThurvasUnited States
David LiUnited StatesGlobal footprint
Where Valve has talent and traffic
(4 of 1,697 staff)
team presence
Capital deployed
Valve's 3 investments and acquisitions.
Every disclosed deal where Valve appeared as a backer or acquirer, 2017–2018. Toggle between venture rounds, M&A, or both. The map below is grouped by the target company's sector — the colored pill on each chip is the round type.
3 deals across Valve's capital deployment.
Where the deals concentrate by sector, stage, and decade.
02 · Portfolio market map
Valve's portfolio, mapped.
Each chip is one company. Pill colour shows round type — green for Seed, blue for Series A, purple for B/C+, pink for late-stage, amber for M&A. Bigger sectors keep their full list behind “+ N more”.
Market sentiment
What the market is saying about Valve
An AI-synthesized read of the highest-engagement posts about Valve on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
See Valve on the full Dealroom platform
Live deal flow, founder pedigree, hiring signals, revenue trajectory, and the full cap table.