Alumni Ventures Climate Portfolio 2026

3 Climate companies backed by Alumni Ventures, including Aalo Atomics, Omnidian, Valar Atomics — with the co-investors on each cap table.

Alumni Ventures — Climate accounts for 5 tracked companies with verified cap-table data, 5 of which disclose round sizes totalling $941M. The median disclosed raise is $100M, and the largest is Ascend Elements at $542M, ahead of Omnidian ($120M) and Cambium ($100M).

The names that recur most often on these portfolio cap tables are Alumni Ventures (5 companies), Fifth Wall (2 companies), Hitachi Ventures (2 companies), Gaingels (2 companies), Decarbonization Partners (1 company), Temasek (1 company). By latest disclosed round, the market skews Series B (3), Series D (1), Series C (1).

Best funded Alumni Ventures — Climate companies

  1. Ascend Elements — $542M (latest: Series D)
  2. Omnidian — $120M (latest: Series C)
  3. Cambium — $100M (latest: Series B)
  4. Thea Energy — $100M (latest: Series B)
  5. Runwise — $79M (latest: Series B)

Alumni Ventures, LLC — related firms and companies (56)

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•By Alejandro Cremades