Venture Capital

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SJF Ventures

SJF Ventures, founded in 1999 by Dave Kirkpatrick and Rick Defieux, manages $435M across five impact-focused venture funds.

SJF Ventures logo

SJF Ventures

SJF Ventures is a venture capital firm investing in impact investing sector companies. It offers equity financings to growing businesses, either individually or in syndicates. Founded in 1999 in Durham, North Carolina, the firm has made 170 investments and 31 portfolio exits.

General information

Firm type

Venture Capital

Year founded

1999

AUM

Undisclosed

Location

Region

North America

Country

United States

City

Durham

Corporate office

Durham, NC, United States

Additional offices

New York, NY · San Francisco, CA · Seattle, WA

Principals

Dave Kirkpatrick

Managing Director and Co-Founder

Rick Defieux

Chair of the Investment Committee and Co-Founder

Cody Nystrom

Managing Director

Arrun Kapoor

Managing Director

Alan Kelley

Managing Director

Sector focus

Clean Energy and ElectrificationEducation and EmploymentGovernment and Civil SocietyHealth and WellnessSupply Chain and Circular EconomySustainability and Climate ResilienceAI/MLEnterprise Software

Frequently asked questions

How does SJF Ventures define its impact investing mandate?

SJF Ventures targets companies where positive social or environmental outcomes are directly linked to business performance. The firm employs a Director of Impact to manage measurement and reporting, and integrates impact diligence from the sourcing stage. Kirkpatrick co-founded the Impact Capital Managers network, reinforcing a commitment to industry-level standards for impact accountability.

Who leads investment decisions at SJF Ventures?

Investment decisions are managed by a partnership group chaired by co-founder Rick Defieux. Managing Directors Dave Kirkpatrick, Cody Nystrom, Arrun Kapoor, and Alan Kelley each lead domain-specific practices in climate, health, education, and enterprise software. The firm uses an investment committee structure common to institutional venture funds.

What investment stages does SJF Ventures typically target?

SJF invests from early-stage through growth equity, typically as a lead or co-lead in Series A and B rounds. The firm's portfolio includes seed-stage companies like Nuclearn and later-stage operations such as Lineage Logistics and PosiGen, indicating flexibility across the venture lifecycle depending on sector and impact thesis alignment.

Does SJF Ventures participate in fund commitments or only direct deals?

The firm makes direct equity investments into operating companies and does not publicly operate as a fund-of-funds. Its structure is that of a conventional venture capital partnership, raising discrete funds and making direct portfolio investments rather than allocating to external managers.

Which sectors does SJF Ventures explicitly avoid?

SJF Ventures has not published explicit exclusion lists, but its investment theses — climate tech, health equity, workforce development, and sustainable supply chains — imply an avoidance of sectors with baked-in negative externalities such as fossil-fuel extraction, defense contracting, or tobacco. All known portfolio companies operate in areas where impact and revenue growth are positively correlated.

How is SJF Ventures structured as a firm — single-family office, institutionally-backed venture capital, or hybrid?

SJF Ventures is structured as an independent, institutionally-backed venture capital firm raising funds from limited partners, not as a single-family office. The firm’s operational model — including fund cycles, LP reporting, and a dedicated CFO/CCO — matches conventional VC fund architecture.

What is SJF Ventures' known posture on co-investments alongside external GPs?

SJF Ventures participates in co-investment arrangements alongside other institutional investors, as evidenced by syndicated rounds in portfolio companies such as Azra AI and PosiGen. The firm’s website positions it as a lead and co-lead investor, suggesting openness to structured co-investment but not passive fund-of-fund participation.

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