First In
Overview
First In is a venture capital firm that invests in early-stage cybersecurity, defense, and data technology companies.
Investments
| Company | Date | Stage | Lead |
|---|---|---|---|
| Castelion | Dec 2025 | Series B | Co-investor |
| Portal Space Systems | Apr 2025 | Seed | Co-investor |
| Antithesis | Dec 2025 | Series A Extension | Co-investor |
| Smack Technologies | Aug 2026 | Series B | Lead |
| Moth+Flame | Jun 2021 | Seed | Co-investor |
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Key People
Renny McPherson
Managing Partner
Arthur Karell
Partner
Sector & Stage Mix
Industry, funding stage, and valuation band breakdowns.
FAQ
Where is First In based?
First In is headquartered in Washington D.C., United States.
When was First In founded?
First In was founded in 2020.
How many portfolio companies does First In have?
First In has 40 portfolio companies in Caplight's dataset.
What are some companies in First In's portfolio?
Portfolio companies visible on Caplight include Castelion, Portal Space Systems, Antithesis, Smack Technologies, Moth+Flame.
What was First In's most recent investment shown here?
First In's most recent investment in this portfolio sample was in Smack Technologies in 2026.
What sectors does First In focus on?
First In focuses on Healthcare & Life Sciences, Frontier & Industrial Tech, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Frontier & Industrial Tech, Healthcare & Life Sciences, FinTech, Frontier & Industrial Tech, Healthcare & Life Sciences, Frontier & Industrial Tech, Cybersecurity, Cybersecurity, Frontier & Industrial Tech, Cybersecurity, Enterprise Software, Healthcare & Life Sciences, Consumer & Commerce, Cybersecurity, Healthcare & Life Sciences, Cybersecurity, Healthcare & Life Sciences, Cybersecurity, Enterprise Software, AI, Data & Cloud Infrastructure, Enterprise Software, Cybersecurity, Cybersecurity, Enterprise Software, Telecommunications & Networking, Healthcare & Life Sciences, AI, Data & Cloud Infrastructure, Enterprise Software, AI, Data & Cloud Infrastructure, Cybersecurity, Healthcare & Life Sciences, Energy & Sustainability, Cybersecurity, AI, Data & Cloud Infrastructure, Enterprise Software, AI, Data & Cloud Infrastructure, Frontier & Industrial Tech, Telecommunications & Networking, Frontier & Industrial Tech, Frontier & Industrial Tech, Enterprise Software, Frontier & Industrial Tech, AI, Data & Cloud Infrastructure, Enterprise Software, Frontier & Industrial Tech, Frontier & Industrial Tech, AI, Data & Cloud Infrastructure, Cybersecurity, Energy & Sustainability, Enterprise Software, Cybersecurity, Enterprise Software, Enterprise Software, Frontier & Industrial Tech, Media, Entertainment & Gaming, Enterprise Software, AI, Data & Cloud Infrastructure, AI, Data & Cloud Infrastructure, Telecommunications & Networking, AI, Data & Cloud Infrastructure, Enterprise Software, Mobility, Transportation & Logistics, Cybersecurity, Enterprise Software, Enterprise Software, AI, Data & Cloud Infrastructure, Mobility, Transportation & Logistics, Consumer & Commerce.
What company stages does First In focus on?
First In typically invests at the Early stage.
What is First In's AUM?
First In's assets under management are estimated between $50.0M and $100.0M.