Basalt Infrastructure Partners

Investment decisions are led by the senior partnership, with Rob Gregor and Steven Lowry as Senior Partners in London and John Hanna and David Greenblatt as Managing Partners in the New York office. The firm's flat partnership structure means major commitments require consensus among the senior team.

Basalt emphasizes a proprietary, relationship-driven origination model aimed at founder-owned and family-held mid-market infrastructure assets. By maintaining senior operating partners with deep industry networks and avoiding reliance on broad auctions, the firm targets deals it believes carry less competitive tension on entry pricing.

Basalt focuses on power generation, regulated and contracted utilities, transportation infrastructure, and digital infrastructure (fiber, towers, data distribution). The geographic mandate is transatlantic — North America (US and Canada) and Europe (UK, Germany, Nordics, Italy, and others) — with occasional investments in Australia and New Zealand.

Basalt applies mandatory sustainability pillars across all portfolio companies: climate resilience, environmental protection, human capital, and governance. Each investment receives a bespoke set of responsible-investment KPIs based on a materiality assessment. The firm publicly reports its ESG framework on its website, though it does not publish a standalone annual impact report as of early 2026.