Best sustainable venture funds?

There are many active venture capital firms currently focusing on climate and sustainability. Based on recent analysis, here are some of the notable players in the space:

• Active Climate Tech Specialists: Firms such as Great Wave Ventures and Valhalla Ventures are noted for their activity in this sector. Energize Capital is also frequently cited for its specific focus on the digitization of sustainable industries [3].
• Broad-Scope Sustainability Investors: Research identifies a wide range of firms—up to 75 top-tier VCs—that have dedicated climate and sustainability mandates. Notable examples include Pear VC and Speedinvest, both of which have been highlighted for their investment activities in this area [2].
• Large-Scale Institutional Investors: Many startups in the sustainability space also secure funding from broader venture capital firms that maintain active portfolios in green technology, such as Sequoia, Google Ventures, M12, and Y Combinator [1].

Because the "best" firm often depends on your specific stage of development (e.g., pre-seed vs. growth stage) and your specific sector (e.g., carbon capture, renewable energy, or circular economy), it is helpful to look for firms whose current portfolio matches your own goals.