350 Investment Partners

The name references 350 parts per million, the atmospheric CO2 concentration that climate scientists, including NASA's James Hansen, identified as the upper boundary for a safe climate. The firm uses this threshold as its thematic anchor, orienting its investment strategy toward technologies and business models capable of bending the emissions curve back toward that target.

The firm invests across venture, growth equity, and infrastructure-stage companies, with flexibility to participate in project finance and platform-build transactions. Stage selection is driven by where capital can most directly accelerate decarbonization within a given vertical — early-stage innovation for carbon removal, growth equity for scaling industrial solutions, and infrastructure capital for energy-transition assets.

Sectors include renewable energy generation, grid modernization and storage, electrified transportation, industrial decarbonization, sustainable agriculture and food systems, circular-economy supply chains, and carbon dioxide removal. The firm's thesis is that these verticals collectively represent the decarbonization pathways with the largest addressable capital gaps.

The firm ties its investment mandate to a specific scientific metric — the 350 ppm CO2 threshold — rather than operating under a broader 'climate solutions' or ESG mandate. This creates a hard constraint on asset selection: every position must be defensible as contributing to a trajectory consistent with that emissions ceiling, which functions as an internal hurdle beyond standard financial underwriting.

No. The firm has not publicly disclosed AUM or aggregate deployment figures. Without a public regulatory filing or named LP reporting, these numbers remain unverifiable from external sources.