United States · Series C startup

Who invested in Socket

5 rounds we have observed, with the 21 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

AICybersecurityDeveloper ToolsOpen Source

Raised 6 months ago

Funding summaryUpdated 5 Nov 2026

$107Mraised across 5 rounds since 2015, from 6 sources

$2.0MPre-seed$5.0MVenture$40MSeries B$60MSeries C
Latest round
Series C, $60MMay 2026
Led by
Thrive Capital
Step-upi
1.5×
Investors
21 (1 led)
See who backed them

The funding story

Each circle is a round, placed by date and sized by amount. The line above is the running total.

201520172019202120232025
?Venture$2.0MPre-seed$5.0MVenture$40MSeries B$60MSeries C
First round
Venture
Jan 2015
Biggest round
$60M
Series C · May 2026
Usual gap between rounds
19 months
the median of 4

The rounds

  1. May 2026
    Series C$60M5 new1 returning

    Reported by TechStartups and 1 otherSEC filing: $59M sold

  2. Oct 2024
    Series B$40M6 new

    Reported by TechCrunchSEC filing: $1.0M sold, first sale Aug 2024

  3. Sept 2023
  4. Jul 2022
  5. Jan 2015
    VentureAmount undisclosed

    No investor was named in the report.

    From a historical funding record

Who was in which round

The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.

Everyone who backed them

Andreessen HorowitzVC firm2rounds
Thrive CapitalFamily office1round, led 1
Coinbase VenturesCorporate VC1round
Abstract VenturesVC firm1round
Village GlobalVC firm1round
K5 GlobalPrivate equity1round
SignalFireVC firm1round
South Park CommonsAccelerator1round
Framework VenturesVC firm1round
ArchetypeVC firm1round
Elad GilVC firm1round
Balaji SrinivasanVC firm1round
ACME CapitalVC firm1round
LongHash VenturesVC firm1round
NascentVC firm1round
Jerry YangVC firm1round
Capital OneVC firm1round
Tobias LütkeVC firm1round
Jeff LawsonAngel1round
Bret TaylorAngel1round

Missing a round, or an investor who was in one? Tell us.

Also claim to have backed them

These 3 firms list Socket as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.

Unusual VenturesVC firmPer its own site
Fourth Revolution CapitalVC firmPer its own site
Y VenturesVC firmPer its own site

Quick answers about Socket

Who invested in Socket?

Socket's investors include Andreessen Horowitz, Thrive Capital, Lightspeed Venture Partners, Coinbase Ventures and Abstract Ventures, and 16 more on record. Thrive Capital led its latest round.

How much has Socket raised?

Socket has raised $107M across 5 rounds since 2015. One round did not disclose an amount, so the total is a floor.

When did Socket last raise?

Socket's most recent round was a Series C of $60M in May 2026, led by Thrive Capital.

What was Socket's biggest round?

Its most recent round, $60M in May 2026, is also its largest on record.

Who backed Socket first?

Socket's first round on record, in Jul 2022, was backed by K5 Global, SignalFire and Balaji Srinivasan and 2 others.

What stage is Socket at?

Socket's latest named round is a Series C, in May 2026.

Where is Socket based?

Socket is based in the United States.

Who led Socket's rounds?

Thrive Capital led the Series C in 2026.

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