First In

First In

Venture Capital

First In is an investment firm that is focused on companies that work on modern security for the enterprise and for society.

Founded in 2020
Washington D.C., District of Columbia, United States
Totals
2Investments
1Portfolio
API IDs
Funded Entity ID
Investor ID

Stats

Most Common Sub-Sector

Developer Tooling

Regular Co-Investors

Pro

1st Investment

Antithesis

·

Seed

Feb 13, 2024

Last Investment

Antithesis

·

Series A

Dec 4, 2025

Investment Count

Unlock Fundraising Data

Number of Investments Over Time

Unlock Fundraising Data

Investments

RoundSource
1AntithesisSeries ADec 4, 2025
Pro
--
Pro
2AntithesisSeedFeb 13, 2024
Pro
Pro
Pro

Portfolio

CompanySub-Sectors