Equity for cash Climate & Energy accelerators
These climate and energy programs invest cash in exchange for equity, so they are true accelerators rather than grant programs or fellowships. The checks vary widely, from about $100,000 at the U.S. Venture Sustainability Accelerator to $250,000 at the Cox Cleantech Accelerator, and corporate-backed programs like Halliburton Labs and Evergreen Climate Innovations bring industry access alongside investment. Because each takes equity, read the amount and the reported terms on each record before you apply, and note where the equity percentage is not published.
Showing 5 of 5 programs
| Check size | Equity | Terms | Format | Next window | Signal | |||
|---|---|---|---|---|---|---|---|---|
| Cox Cleantech Acceleratorcleantech / sustainability | $250,000 per company | Not publishedA 12-week in-person cleantech accelerator in Atlanta run by Cox Cleantech with gener8tor and the Georgia Cleantech Innovation Hub, investing $250,000 per company in a cohort of 5. The equity percentage is not published. Applications for the next program run August 9 to November 8 (the page does not print the year; the window was live when verified on 2026-08-26). | Equity for cash | GA | In person | Nov 8, 2026 | Oct 1, 2026 | Verified |
| Evergreen Climate Innovations (formerly Clean Energy Trust)Midwest climate tech seed investing | typically $200,000-$300,000 | Not publishedNonprofit impact investor (501vc Investment Fund), not a cohort accelerator. The 501vc page states typical investments of $200,000 to $300,000 into pre-seed and seed climate startups in the 16-state Greater Midwest (IA, IL, IN, WI, MI, MN, KS, MO, OH, TN, KY, ND, SD, CO, NE, western PA). Applications are considered on a rolling basis; the fall and spring application deadlines each start an approximately five-month investment cycle. The Fall 2026 deadline was Aug 17, 2026; the spring 2027 deadline is not yet posted. Instrument type not specified. Opportunities page also lists sponsor awards (U.S. Bank Foundation Cleantech Award, Nicor Gas Illinois Innovator Award), amounts not published. | Equity for cash | IL | Remote | None confirmed | Oct 1, 2026 | Verified |
| Halliburton Labsclean energy scaling / industrial energy hardware | $100,000 cash plus $400,000 in in-kind support, taken as equity (generally via SAFE) | Not publishedFAQ: 'We invest $100,000 cash and take $400,000 in in-kind equity for the support we provide. Generally, we do this in a SAFE but may be flexible depending upon the funding status of the startup.' No equity percentage is published, so equity_pct stays null. The homepage says Halliburton Labs does not take board seats, commercial rights, or intellectual property rights. The FAQ describes a cohort-based program with two entry points each year: applications are accepted year-round, finalists pitch at a Pitch Day held twice a year, and companies are selected after about a month of further diligence; generally no more than eight companies are selected per year. Open to applicants from anywhere in the world, excluding sanctioned countries or individuals. The FAQ also says it is not an accelerator. The earlier statement that the program lasts about 12 months no longer appears on the site, so program_length_weeks is null. | Equity for cash | TX | In person | None confirmed | Oct 1, 2026 | Verified |
| Techstars Alabama EnergyTech Acceleratorenergy technology (grid and distribution, efficiency, renewables, storage) | $220,000 total: $20,000 via convertible equity agreement plus $200,000 uncapped MFN SAFE | 5% | Equity for cash | AL | Not published | None confirmed | Oct 1, 2026 | Verified |
| U.S. Venture Sustainability Acceleratorenergy / mobility / decarbonization | $100,000 | Not publishedgener8tor and U.S. Venture invest $100,000 in each of five startups working on sustainability and mobility, over a 12-week in-person program in Appleton, Wisconsin (relocation required). The investment goes into the current round or an uncapped convertible note; the equity percentage is not published. The program page says it is not currently accepting applications and lists no upcoming program. | Equity for cash | WI | In person | None confirmed | Oct 1, 2026 | Verified |
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