United States · 
What does First In invest in?
First In invests most often at Seed and Series B (80% of the rounds on record), in sectors such as Smart Clothes, IoT and Defensetech.
First In highlights
- 01
4 cheques in the last 12 months
- 02
Mostly Seed and Series B: 80% of its rounds
- 03
Led 2 rounds
What they do
we are SECURITY TECHNOLOGY investorsFrom their own website
- Type
- VC firm (from a list, unverified)
- Cheque size
- Not stated
- Stages
- SeedSeries ASeries B
- Sectors
- Smart ClothesIoTDefensetech
- Based in
- Washington DC, United States
- Cold pitches
- Not stated
The record
Every round we can evidence, newest first5 appearances
- 2026
4 rounds
- Oct
- Aug
- Apr
- Apr
- 2025
1 round
- Jul
An announcement gives the size of the round, not the size of this investor's cheque: the only rounds that imply a cheque are those where they were the sole named investor.
The team
Named by the firm itself, on a filing, its Form ADV or its company registration4 named
AKArthur KarellISSUER'S MANAGING MEMBER.iFiling they signed
FRForbes Reynolds McPhersonISSUER'S MANAGING MEMBER.iFiling they signed
JNJeremy NeilsonManaging Director of the Issuer's ManageriFiling they signed
RTRichard ThomsOfficer of the Issuer's ManageriFiling they signed
We also hold 4 people at this firm from the lists this database was built from: a weaker source than the filings, since a list does not say when a title ended. Login to see them.
What the register says
From the firm's own filings with the SEC, which it must file accurately by law
$851Mgross assets of its fundsOct 2026
5+funds on filenumbered funds in its name
Exemptreporting adviserventure or small private funds
- Legal name
- First IN Ventures Management, Inc.
- SEC number
- CRD 341863
What they claim to have backed
From their own portfolio page (on their website)
13 of 22 we have independently watched raise
360privacyAndurilAntithesisAnysignalCastelionPrecogPryzmRilianShift5SmacktechnologiesTidalcyberVanguarddefenseZerotierAcquiredCavhqHoplynkMothandflamevrOpenpolicyPixmsecurityScatrcorpTwosenseVolundmfg
Weaker than a round we watched, stronger than a list somebody sold us. A firm is far less willing to put a company on its own site that it never funded.