CleantechVentures Competitors

Y Combinator is the leading startup accelerator for entrepreneurs. Since 2005, YC has invested in over 5,400 companies, including Airbnb, Dropbox, Stripe, Reddit, Instacart, DoorDash, and Coinbase. Today, YC has built the most powerful startup community in the world alongside the products and programs to support founders for the life of their company.

Khosla Ventures invests in companies that are bold, early and impactful. The firm was started in 2004 by Vinod Khosla, co-founder of Sun Microsystems, to provide venture assistance to entrepreneurs. Headquartered in Menlo Park, Calif., Khosla Ventures invests in a range of areas including AI, climate, sustainability, enterprise, consumer, fintech, digital health, medtech and diagnostics, therapeutics and frontier technology.

Breakthrough Energy backs companies developing the next generation of clean energy solutions. We invest in bold ideas, fund breakthrough technologies, and shape markets to accelerate innovation across the five major sources of emissions—manufacturing, electricity, agriculture, transportation, and buildings. Founded by Bill Gates, Breakthrough Energy supports companies at every stage, from early discovery to large-scale deployment, using technology, policy, and market-driven solutions to make clean energy affordable and scalable.