Cambrian Ventures Research
Investment Thesis
Cambrian Ventures, founded by Rex Salisbury in 2022, believes that fintech remains massively underpenetrated globally. The firm's core thesis is that "only 1% of global financial services revenues has been captured by fintech," presenting enormous opportunities for founders building the remaining 99%.
Rex Salisbury, the solo GP, came to venture capital through an unconventional path: he started as an investment banker, transitioned to fintech engineering, then led Andreessen Horowitz's fintech practice before launching Cambrian. This background gives him deep technical and market understanding of the fintech ecosystem.
Cambrian explicitly rejects the notion that fintech's opportunities are exhausted. The fund targets "great founders who are very good at executing against the vision they lay out" and leverages Salisbury's extensive network within the fintech community to source and support exceptional entrepreneurs.
Investment Approach and Community
Cambrian's investing model is deeply rooted in community. Salisbury:
- Built a fintech community with 1,500+ members in a dedicated Slack group
- Hosts a podcast called "Cambrian Fintech with Rex Salisbury" featuring conversations with founders and operators
- Manages a newsletter with ~20,000 subscribers
- Maintains active engagement through fireside chats with leading fintech founders
This community-first approach extends to deal sourcing and portfolio support. The fund benefits from unprecedented founder connectivity, allowing Salisbury to make informed decisions and provide meaningful support beyond capital.
Stage and Check Size
Stage Focus: Pre-seed and Seed-stage companies
Check Size: Approximately $100,000 to $500,000, with core check size around $500,000 non-lead investments
Cambrian typically writes non-lead checks, though the fund has demonstrated flexibility in its approach. The tight check size range allows deep participation in early-stage rounds while maintaining portfolio diversification.
Fund Performance and Track Record
Fund I: $20 million (closed 2022)
- Deployed across 33 companies
- Extraordinary performance: ~50% of portfolio companies have already achieved Series A funding
- This is significantly higher than the industry benchmark of 15.4% seed-to-Series A graduation rate tracked by Carta
- Notable exits/developments include Simple Closures and Keep
Fund II: $20 million (closed 2025)
- Successfully raised despite challenging venture fundraising environment for emerging managers
- PitchBook data showed fundraising by emerging venture managers hit a decade low in H1 2025, making this raise remarkable
- Fund II includes institutional backers (bank, life insurance firm) alongside returning founder LPs
- Strategy remains unchanged: finding great founders with unique product ideas
- Actively deploying with focus on how AI enables multi-product companies from day one
Founder LP Network
One of Cambrian's key competitive advantages is its founder investor base. Fund I and II LPs include founders from prominent fintech companies:
- NerdWallet
- Plaid
- Betterment
- Melio
- And others
This network provides portfolio companies with both capital and operational/go-to-market expertise.
Investment Thesis Details: Broad Fintech Coverage
Cambrian's interests span the entire financial services ecosystem:
Primary Focus Areas:
- Supply Chain Finance
- InsurTech
- Lending and Credit
- Identity & Fraud Detection
- Blockchain and Crypto
- BankTech
- HealthTech × Fintech
- RegTech and Compliance
- Retail and E-commerce Finance
- Accounting and Tax
- HR × Fintech
- WealthTech
- Payments
- Capital Markets
- PropTech and Real Estate Finance
- Consumer Finance
The fund's philosophy emphasizes breadth: "Our interests are broad because money connects everything." This allows Salisbury to invest across verticals while maintaining deep expertise in fintech infrastructure and product dynamics.
Founder Preferences
The fund specifically seeks founders with:
- Execution Ability - "Very good at executing against the vision they lay out"
- Fintech Domain Expertise - Understanding of financial services and product gaps
- Network and Credibility - Ability to attract customers and co-investors
- Vision for Underpenetrated Markets - Founders tackling the "99% of fintech" remaining to be built
Examples of successful Cambrian portfolio founders include William Hockey (ex-Plaid, Column), Ham Serunjogi (Chipper Cash), and founders of companies like Keep and Daffy who recognized specific pain points in financial services.
Decision Process and Timeline
Solo GP Model: Rex Salisbury makes all investment decisions. This enables rapid decision-making and personalized founder relationships.
Process: Emphasis on founder quality and execution capability. Salisbury employs a specialist's approach, deep diving into specific domains within fintech to identify opportunities others miss.
Geographic Focus
Primary: United States (particularly San Francisco Bay Area, given office location in Jackson Square)
Secondary: International opportunities present, with Africa fintech shown through Chipper Cash investment
Lead Tendency and Fund Status
Participation Type: Typically "Followers" - Cambrian writes non-lead checks, filling out rounds led by other investors
This positioning allows the fund to maintain concentrated check sizes, leverage other lead investors' diligence, and preserve capital for the next generation.
Fund I (2022): Mature, deployed across 33 companies with exceptional graduation rates Fund II (2025): Actively deploying from $20M committed capital
AI and Future Outlook
Per 2025 commentary, Salisbury identifies AI as a transformational force enabling founders to build multi-product companies from day one. He cites Every as an example: a single platform delivering banking, accounting, finance, corporate tax, treasury, HR, HSA, and FSA services.
Overall Assessment
Cambrian is a highly focused, specialist fintech fund led by an experienced solo GP with strong founder networks and exceptional portfolio company graduation rates. The fund provides meaningful community and operational support beyond capital, positioning it as a meaningful partner for pre-seed and seed fintech founders.