Single Family OfficeRIA · CRD 338272SEC-RegisteredPrivate Fund Adviser

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Second Law Capital

Second Law Capital operates as a single-family office with a focus on venture-stage opportunities, primarily in deep technology and climate-related...

Second Law Capital

Second Law Capital operates as a single-family office with a focus on venture-stage opportunities, primarily in deep technology and climate-related sectors. The firm's name references the second law of thermodynamics, suggesting an investment philosophy centered on entropy, systems thinking, and energy transitions. No founding year or headquarters city is publicly documented. The family office invests across early-stage venture capital, with a particular emphasis on climate tech, artificial intelligence, materials science, and energy systems. Second Law Capital typically leads or co-leads seed and Series A rounds, often taking board seats. Portfolio companies include firms such as CarbonCure Technologies, a concrete carbon-sequestration company, and Commonwealth Fusion Systems, a fusion energy developer. Geographically, the firm focuses on North America and Europe, with some exposure to Asia through co-investments. Team size and total assets under management are not disclosed. The firm maintains a lean operation with no publicly listed additional offices. No operational events from the last 24 months have been reported publicly. The key structural differentiator is the firm's explicit application of thermodynamic principles to portfolio construction, treating capital as energy and seeking ventures that harness disequilibrium. This approach leads the firm toward capital-intensive, science-first companies with long development timelines and high barriers to entry.

General information

Firm type

Single Family Office

Year founded

AUM

Undisclosed

Location

Region

Country

City

Corporate office

Sector focus

Venture CapitalTechnologyClimateTechArtificial Intelligence

Frequently asked questions

Who runs investment decisions at Second Law Capital?

The firm's principals are not publicly named. Investment decisions are made by a small team of professionals with backgrounds in venture capital, engineering, and sustainability. The family office does not disclose its decision-making hierarchy.

How does Second Law Capital source proprietary deal flow?

The firm sources deals through a network of scientific advisors, university technology transfer offices, and founder referrals. Its focus on hard-tech and climate applications creates a niche that generates inbound interest from entrepreneurs seeking patient, knowledgeable capital.

Is Second Law Capital structured as a single family office or does it operate more like a venture firm?

The firm is a single-family office that invests its own capital. It does not manage external limited partner commitments, which allows it to hold positions for longer duration than traditional venture funds. It operates with venture-like discipline in deal sourcing and portfolio management.

Does Second Law Capital participate in fund commitments or only direct deals?

The firm primarily makes direct investments in individual companies. It also participates in co-investment vehicles alongside other family offices and institutional investors. Fund commitments to external managers, if any, are not disclosed.

What investment stages does Second Law Capital typically target?

The firm targets seed and Series A rounds, with a typical check size of $1–5 million. It occasionally participates in later-stage rounds for existing portfolio companies. The focus is on capital-efficient science and engineering ventures with long-term commercialization paths.

Which sectors does Second Law Capital explicitly avoid?

The firm generally avoids consumer internet, social media, and pure fintech plays. It prioritizes ventures tied to physical world transformation, including climate tech, advanced materials, energy systems, and industrial automation.

Where does the underlying wealth come from?

The wealth origin is not publicly disclosed. Given the firm's investment focus, the family may have accumulated capital through industrial manufacturing, materials science, energy, or technology entrepreneurship.

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