Venture CapitalRIA · CRD 331888SEC-RegisteredPrivate Fund Adviser

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Fortitude Ventures

Sungjoon Cho's Fortitude Ventures backs hard-tech autonomy from San Mateo, including robotic surgery, unmanned seaplanes, and underwater defense drones.

Fortitude Ventures logo

Fortitude Ventures

Fortitude Ventures is an SEC-registered investment adviser with offices in San Mateo, CA. It provides investment advice to clients. The firm is headquartered in San Mateo, CA.

General information

Firm type

Venture Capital

Year founded

AUM

Undisclosed

Location

Region

North America

Country

United States

City

San Mateo

Corporate office

San Mateo, CA, United States

Principals

Sungjoon Cho

Managing Partner

Joan Kim

Principal

Sector focus

AI/MLRobotics & AutomationDefense TechDigital HealthPropTechEnterprise SoftwareAerospace & Aviation

Frequently asked questions

Who runs investment decisions at Fortitude Ventures?

Managing Partner Sungjoon Cho leads the firm, and Principal Joan Kim serves as the other named investing principal per the firm's website. The advisory network includes domain experts from Bear Flag Robotics, Shopify, Lunit, Moloco, and Foundry, but investment authority appears to rest with Cho and Kim.

How does Fortitude Ventures source its deals?

Fortitude appears to source through operator networks in hard-tech and autonomy, given its advisor roster includes executives from Bear Flag Robotics, a John Deere acquisition. The firm's narrow dual mandate — AI for knowledge work and robotics for the physical world — acts as a filter, pulling inbound deal flow toward founders building in defense, healthcare logistics, and industrial simulation. Publicly, Fortitude does not describe a formal scout network or in-house venture partner program.

Does Fortitude invest exclusively in autonomous systems, or does it also back pure software companies?

The firm draws a line between two domains: 'AI autonomy of knowledge work' and 'robotic autonomy of the physical world.' In practice, this includes both pure software — Coval builds conversational AI agents, Cashmere enables AI-content monetization — and hard-tech plays like Current Surgical's autonomous cancer ablation or Poseidon's unmanned seaplanes. It is not a pure deep-tech fund, but it explicitly avoids SaaS tools that do not involve autonomy or transformation of legacy industries.

What check size and stage does Fortitude target?

Fortitude describes itself as an early-stage venture firm without publishing a target check size. The portfolio composition — companies that are pre-revenue or building regulatory-heavy prototypes — suggests seed and Series A engagement, though no dollar figures are publicly disclosed.

Does Fortitude participate in follow-on rounds for its portfolio companies?

No public disclosure exists about Fortitude's reserve ratio or follow-on strategy. Given the capital intensity of hard-tech startups — Current Surgical's regulatory path, ReSim's simulation infrastructure — the firm likely reserves for follow-on, but this is an inference, not a confirmed policy.

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