Stephen Balaban, Founder of Lambda

About Stephen Balaban

Stephen Balaban is the founder of Lambda. Lambda operates in AI Infrastructure and is based in San Francisco, CA. Lambda has raised $1.5B, latest Series E $1.5B (2025). Backers on record include Alan Hall, Cathie Wood, Felicia Parker, Greg Warnock, Joe Zhao, Mitchell Kominsky and 5 others.

Stephen Balaban at a glance

Company

Lambda

Industry

AI Infrastructure

Location

San Francisco, CA

Total raised

$1.5B

Investors on record

Alan Hall, Cathie Wood, Felicia Parker, Greg Warnock, Joe Zhao, Mitchell Kominsky, ARK Investment Management, Futureland Ventures

Frequently asked about Stephen Balaban

Who is Stephen Balaban?

Stephen Balaban is the founder of Lambda. Full profile, funding history and background on StartupFundraising.com.

What company did Stephen Balaban found?

Stephen Balaban founded Lambda, a AI Infrastructure company based in San Francisco, CA.

How do I contact Stephen Balaban?

Verified contact routes including LinkedIn, background and funding history for Stephen Balaban are available on the StartupFundraising.com founder profile.

This founder profile draws on disclosed rounds, filings and investor records in the StartupFundraising database and is updated as new funding is recorded. Founders raising now use profiles like this one to study comparable AI Infrastructure journeys in San Francisco — who backed them, at what stage, and how much they raised.

Lambda funding profile (1)

• Lambda funding: total raised, rounds and investors

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