Third Prime
Third Prime is a New York-based venture capital firm founded in 2016 that invests in early-stage technology companies, deploying lead and co-lead equity checks across fintech, AI, healthcare, defense-tech, and compliance software sectors.
- Company typePrivate
- Founded2016
- HeadquartersNew York, United States
- Headcount1–10
- GTM typeB2B
- OfferingServices
What Third Prime does
Third Prime is a New York-based venture capital firm founded in 2016 by Keith Hamlin and Wesley Barton, with Mike Kim as a third General Partner. The firm backs early-stage technology companies, deploying lead and co-lead equity checks typically ranging from $4M to $22M across pre-seed through Series A stages, and reports portfolio exposure across fintech, AI, healthcare technology, defense technology, compliance software, and digital commerce. The firm is small (1-10 employees) and operates with a lean team of three GPs, a General Counsel/COO, an Operating Partner, a Head of Business Development, a Principal, a Vice President, and two Venture Partners.
The firm's investment activities over the period November 2024 through March 2026 show an accelerated cadence of lead and co-lead positions, including CalmWave ($5.25M, Nov 2024), Everstar ($4M pre-seed, Feb 2025), Alternative Payments ($22M Series A co-led with MissionOG, Apr 2025), Limited ($7M seed participation, Jun 2025), Bone AI ($12M seed, Nov 2025), Croissant ($28M co-led with Portage, Feb 2026), and UnityAI ($8.5M Series A, Mar 2026). Operating Partner Jason Lee brings operator track record from DailyPay and Salt Labs (~$200M sale to Chime in 2024), and Principal Christian Kaczmarczyk adds prior builder experience across crypto-infrastructure companies (BlockFi, Bison Trails, FalconX), indicating deliberate capability-build across fintech, AI, and defense-tech verticals.
Third Prime is a private, founder-controlled partnership with no disclosed parent company, fund size, or LP composition in the input data. Its revenue mechanics follow standard venture capital practice: management fees on committed fund capital plus carried interest on realized portfolio exits, with no public pricing models, products, or SaaS-style revenue. Geographic exposure appears global, with portfolio companies headquartered in the United States, South Korea (Bone AI), and emerging markets including Latin America and Southeast Asia (via Paywatch and Limited).
Third Prime firmographics
Firmographics- Name
- Third Prime
- Legal name
- Third Prime
- Website
- https://thirdprime.vc
- Company type
- Private
- Founded year
- 2016
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Third Prime is a New York-based venture capital firm founded in 2016 that invests in early-stage technology companies, deploying lead and co-lead equity checks across fintech, AI, healthcare, defense-tech, and compliance software sectors.
- Ownership category
- akta.pro rank
Third Prime industry classification
Industry- Product category
- Venture Capital
- NAICS
- Other Financial Investment Activities (5239), Other Investment Pools and Funds (5259)
- SIC
- Investment Advice (6282)
- akta.pro primary industry
- Secondary Venture Funds (VC Secondaries) (FSANAAAK)
Keywords
Where Third Prime is headquartered
LocationHeadquarters
- HQ city
- New York
- HQ country
- United States
- HQ region
- North America
Markets served
Third Prime business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Marketing or Sales, Technology or R&D, Others
Marketing channels4 records
Third Prime product offering
Product offeringCore offering
Third Prime is a venture capital firm that deploys equity capital into early- and growth-stage technology companies from pre-seed through Series A. The firm partners with founders across FinTech, PropTech, IndustrialTech, healthcare AI, defense technology, and adjacent categories, providing capital alongside strategic guidance and operational support. Recent investments include leads or co-leads in UnityAI, Bone AI, Croissant, Everstar, CalmWave, and Alternative Payments.
Product overview
Third Prime is a venture capital firm that provides investment services to early-stage technology companies. The firm does not offer commercial products or services in the traditional sense; its primary offering is capital investment and partnership support to portfolio companies across various sectors including fintech, AI, healthcare technology, and defense technology.
Differentiator
Problem solved
Functional benefit
Products and services
- Venture Capital Investment Services Equity capital investment and partnership support for early-stage technology companies from pre-seed through Series A, paired with concentrated time, strategic guidance, and operational support for founders across FinTech, PropTech, IndustrialTech, healthcare AI, defense technology, and other technology categories. Offered to founders of high-conviction, paradigm-shifting startups.
Companies that use Third Prime
Customer profileSegments2 records
Ideal customer profiles2 records
Third Prime technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Third Prime partnerships and signals
Strategic signalRecent moves6 records
Expansion highlights5 records
Third Prime competitors and assessment
Company assessmentDirect peers
- Lerer Hippeau: NYC-based early-stage seed and Series A VC investing across consumer, enterprise, fintech, and AI. Direct comparable to Third Prime on stage, geography, and generalist early-stage thesis.
- Eniac Ventures: New York-based seed-stage VC with a generalist early-stage thesis covering AI, fintech, healthcare, and infrastructure software. Closely matches Third Prime on stage, check size, and sector breadth.
- Notation Capital: NYC-based early-stage seed fund investing in technical founders across fintech, AI, and infrastructure. Comparable to Third Prime on stage, geography, and concentration in seed rounds.
- Scout Ventures: Early-stage VC investing in defense, dual-use, and frontier technology out of New York. Highly comparable to Third Prime's defense-tech bets (Bone AI) and early-stage orientation.
- Greycroft: Early-to-growth-stage VC investing across consumer, enterprise, fintech, and digital health from NYC and LA. Comparable to Third Prime on stage, breadth of sectors, and lead-investor posture.
- Company Ventures: NYC-based early-stage VC backing operators building category-defining companies; has co-invested alongside Third Prime (UnityAI). Direct comparable on stage, geography, and operator-led thesis.
- Nashville Capital Network: Early-stage venture fund investing across the US Southeast with healthcare and enterprise focus; co-invested with Third Prime in UnityAI. Comparable as a regional early-stage peer sharing deal flow.
Broad incumbents
- Union Square Ventures (USV): Established NYC-based early-stage VC with a thematic, thesis-driven approach to fintech, web, and crypto. Broader incumbent that overlaps with Third Prime's fintech/crypto exposure (Limited) but at materially larger AUM.
- General Catalyst: Multi-stage venture and growth firm with a healthcare and AI orientation that overlaps Third Prime's UnityAI and CalmWave theses, but at substantially larger AUM and check sizes.
- Bessemer Venture Partners: Long-tenured multi-stage VC with deep coverage of fintech, healthcare, and cloud infrastructure. Overlaps Third Prime's sector breadth but operates at much larger AUM and across stages.
Market position
Strengths4 records
Weaknesses5 records
Competitive moat3 records
Key risks6 records
Key highlights6 records
Customer concentration
Third Prime social profiles
Digital presenceThird Prime financial estimates
Financial estimateRevenue estimate
Valuation estimate
Third Prime leadership team
Management profileNumber of profiles
Profiles10 records
Third Prime funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Third Prime M&A and investment
M&A and investmentM&A
Investments160 records
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Third Prime
What does Third Prime do?
Third Prime is a venture capital firm that deploys equity capital into early- and growth-stage technology companies from pre-seed through Series A. The firm partners with founders across FinTech, PropTech, IndustrialTech, healthcare AI, defense technology, and adjacent categories, providing capital alongside strategic guidance and operational support. Recent investments include leads or co-leads in UnityAI, Bone AI, Croissant, Everstar, CalmWave, and Alternative Payments.
Is Third Prime a public or private company?
Third Prime is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Third Prime founded?
Third Prime was founded in 2016. It employs 1 to 10 people.
Where is Third Prime based?
Third Prime is headquartered in New York, United States, in the North America region.
Who are Third Prime's main competitors?
Direct peers on record are Lerer Hippeau, Eniac Ventures, Notation Capital, Scout Ventures, Greycroft, Company Ventures and Nashville Capital Network. Broad incumbents are Union Square Ventures (USV), General Catalyst and Bessemer Venture Partners.
Does Third Prime have an API?
No public API is recorded for Third Prime.
What industry is Third Prime in?
Third Prime's product category is Venture Capital. Its primary akta.pro industry code is FSANAAAK, Secondary Venture Funds (VC Secondaries). Its NAICS code is 5239 and its SIC code is 6282.