A curated selection of grants, competitions, and accelerator programs specifically tailored for climate technology startups seeking non-dilutive capital or seed funding under $500,000. This list focuses on accessible opportunities that support early-stage validation, prototyping, and initial market entry in sustainability-focused sectors.
Get targeted exposure with custom position pinning and highlighted placement.
A global competition series challenging teams to develop scalable carbon removal technologies. With a total prize pool of $100 million across various challenges, it offers significant visibility and funding opportunities for startups building direct air capture or enhanced weathering solutions.
The global pre-seed program for climate tech startups, managed by the World Economic Forum and Siemens. It provides mentorship, networking, and small seed grants to high-potential ventures, helping founders navigate the journey from lab to market with expert guidance.
Federal contracts designed to support small businesses in developing innovative environmental technologies. This program provides Phase I and Phase II funding for startups working on air quality, water treatment, and waste management solutions, offering non-dilutive capital for R&D.
One of Europe’s largest innovation communities, offering an accelerator program for startups developing low-carbon solutions. Participants receive mentorship, market access, and potential seed funding to accelerate the deployment of sustainable technologies across urban and industrial sectors.
Advanced Research Projects Agency-Energy supports high-risk, high-reward energy technology projects. Startups can apply for competitive grants to develop breakthroughs in solar, wind, and battery technologies, with specific tracks for early-stage innovation and commercialization.
A specialized global accelerator focused on energy technology, providing 12 weeks of mentorship and $120,000 in exchange for equity. It connects founders with industry experts and investors, specifically targeting companies advancing the clean energy transition through innovation.
Y Combinator runs specific cohorts dedicated to climate tech, offering $500,000 in funding for equity. This prestigious accelerator provides unparalleled access to a vast network of founders and investors, helping startups scale their climate solutions with world-class operational support.
A venture builder and accelerator focused on deep tech startups tackling climate change. Pilot provides seed funding, technical resources, and long-term partnership opportunities, specifically targeting startups that need deep tech validation alongside traditional startup growth strategies.
While primarily an academic initiative, it often partners with early-stage startups for pilot projects and seed funding. It supports student and community-driven climate tech innovations, offering resources and micro-grants for prototyping sustainable local solutions.
Based in the Pacific Northwest, this accelerator provides funding and mentorship to cleantech startups. It focuses on helping companies refine their business models and secure follow-on investment, with a strong emphasis on regional impact and sustainable growth.
Founded by Bill Gates, this fellowship supports early-career scientists and engineers working on climate challenges. While not a direct grant, it provides funding for PhD students to start companies, offering a critical bridge to later-stage venture capital and commercialization.
Not a direct grant, but a powerful financial mechanism for early-stage clean tech manufacturers and developers. Startups can leverage these tax credits to reduce capital expenditures, effectively increasing the value of any private funding or grants they secure.
A global platform for emerging startups, with specific categories for sustainability and climate tech. Winners receive cash prizes and access to a global network of investors, providing a viable route to seed funding for early-stage ventures in developing markets.
While largely venture-focused, Amazon occasionally supports innovative early-stage suppliers and partners through its sustainability initiatives. Startups can benefit from pilot programs and early adoption opportunities, which can serve as a stepping stone to larger commercial contracts.
Provides seed funding and mentorship for deep tech startups originating from MIT or with strong academic ties. It is an excellent resource for climate tech founders developing novel materials or engineering solutions, offering non-dilutive grants to de-risk early prototypes.
Offers targeted funding for interdisciplinary research and early-stage ventures addressing climate challenges. Startups with ties to Stanford can leverage these grants for proof-of-concept studies, bridging the gap between academic research and commercial viability.
While Climeworks is a mature company, their open innovation model sometimes partners with early-stage tech providers. Startups with novel carbon capture components or efficiency improvements may find opportunities for pilot testing and strategic collaboration.
A network of accelerators worldwide that supports clean tech startups with mentorship and potential funding. It connects entrepreneurs to regional experts and investors, offering a structured path to commercialization and access to international markets.
A venture fund focused on the energy transition, supporting early-stage startups with innovative solutions. While larger funds are common, they occasionally participate in seed rounds or offer strategic introductions to pilot customers within the utility sector.
Kia Motors supports climate tech startups through its accelerator program, focusing on sustainable mobility and circular economy. Participants receive funding, mentorship, and potential pilot opportunities with Kia’s manufacturing and logistics ecosystems.