Startup Programs for Climate & energy (2026): 11 Programs, Accelerators & Perks

Climate tech, clean energy and sustainability startups. 11 listings on startups.ws state that they accept climate & energy.

Any stage 68 Pre-seed 106 Seed stage 113 Series A+ 66 Bootstrapped 74 VC-backed only 73 Students 7 Solo founders 53 Women founders 1 Underrepresented founders 1 AI startups 74 Open source 8 SaaS 83 E-commerce 25 Fintech 3 Climate & energy 11 Health & bio 12 Nonprofits 3

🎁 Startup programs for climate & energy

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NSF SBIR/STTR (America's Seed Fund powered by NSF) 🎁 ProgramFree

Up to $2 million of zero-equity seed funding from NSF for deep-tech startups, starting with a short Project Pitch.

🎁 up to $2M · #4.6k web rank · ▲ 13 this week

8.5 Visit ↗

America's Seed Fund (SBIR/STTR) 🎁 ProgramFree

Equity-free US federal R&D awards from 11 agencies, from proof of concept (Phase I) to prototype (Phase II).

🎁 up to $2.2M · #61k web rank

8.5 Visit ↗

EIC Accelerator 🎁 ProgramFree

Grant of up to EUR 2.5 million (about $2.9 million) for deep-tech startups and SMEs, with optional EIC equity.

🎁 up to $2.9M · #116 web rank

8.0 Visit ↗

EXIST Business Start-up Grant (exist Gründungsstipendium) 🎁 ProgramFree

12 months of stipends (EUR 1,000-3,000 a month each) plus EUR 30,000 for costs, for German university spin-off teams.

partner code · #279k web rank · ▲ 957 this week

8.0 Visit ↗

NRC Industrial Research Assistance Program (IRAP) 🎁 ProgramFree

Canada's main SME innovation programme: advice from technology advisors and, for some projects, funding.

#1.2k web rank · ▲ 13 this week

7.5 Visit ↗

Ideation (Tnufa) Incentive Program 🎁 ProgramFree

Conditional grant of up to NIS 200,000 (about $60,000) for Israeli entrepreneurs to reach proof of concept.

🎁 up to $60k · #269k web rank

7.5 Visit ↗

Bourse French Tech 🎁 ProgramFree

Bpifrance subsidy of up to EUR 30,000 (about $34,500) for early feasibility work on a French tech innovation project.

🎁 up to $34.5k · #25k web rank · ▲ 285 this week

7.0 Visit ↗

Startup SG Tech 🎁 ProgramFree

Up to S$400,000 (POC) or S$800,000 (POV) for Singapore deep-tech startups, with a share subscription right attached.

🎁 up to $616k

6.5 Visit ↗

🚀 Accelerators & incubators for climate & energy

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Techstars Accelerator 🚀 AcceleratorFree

$220K (5% plus an uncapped MFN SAFE) for a three-month, mentor-driven programme in cities worldwide.

🎁 $220k · #38k web rank · ▲ 63 this week

8.0 Visit ↗

SOSV (HAX, SOSV NY, SOSV SF) 🚀 AcceleratorFree

Deep tech pre-seed investor: up to $550K per company through HAX (hard tech) and its NY and SF programmes.

🎁 $550k · #471k web rank · ▲ 4.2k this week

7.5 Visit ↗

MassChallenge 🚀 AcceleratorFreemium

Global nonprofit accelerator network connecting founders in healthcare, climate, security, food systems and finance with corporate partners.

Free to apply

N/A Visit ↗

Before you apply

Read the eligibility line on each page: funding stage, company age and region rule out more applications than anything else.
Apply with a company domain email and a live website; many programs reject personal addresses.
Keep a list of what you claimed and when it expires.