Top Clean Energy Accelerators & VCs (2026)

Browse clean energy startup programs and VCs with updated offers, deadlines, and funding for 2026.

Updated Jan 2026

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Remote Programs

Equity Free Programs

Found 14 programs total.

Green Future Investments Ltd Fund

Support to take innovations from benchtop to prototype or demonstrator scale.

Application open

Entrepreneurship Program

University Program

Accelerator

Startup Competition

Freigeist

Unleashing European Tech Founders

Application open

€500K - €2m for 20%

Venture Capital Firm

Grace

Grace - Accelerate Female Entrepreneurship

Accelerator

VenturePad Impact Accelerator

Go Further Together

Congruent Ventures

Congruent Ventures Website

Venture Capital Firm

Investment Fund

Impactivs

Actionable expertise to help impact entrepreneurs take their ideas to market.

Application open

Mentorship Program

The Impact Accelerator

The tailored mentorship-focused programme is supported by content, events, workshops and webinars carefully curated to help impact startups flourish.

Application open

Accelerator

Emerging Futures

Supporting gender-diverse greentech innovation in Europe

Application open

Accelerator

Incubator

Rockstart Accelerator

We support startups by providing access to capital, market, community and expertise in four domains

Application open

Accelerator

Venture Capital Firm

EMV Capital

A London-based award-winning investor focused on B2B companies in the industrial high-tech, energy, circular economy, smart cities and transportation sectors and healthcare

Application open

£100K

Venture Capital Firm

SEA Change

Social Enterprise Accelerator

Accelerator

TechX Clean Energy Accelerator

Our TechX Clean Energy Accelerator is an intensive 15-week programme for 12 innovative clean energy start-ups with clear potential to accelerate the transition to an affordable net zero energy industry.

Award: Up to £100k grant per start-up*

Accelerator

Co-working Space

Startup Competition

RedZone

A high-tech hub for startups in Materials Science, powered by SAES. A tailored program for scientists, engineers and inventors. A new way to grow your deep-tech innovations.

Application open

€105k + Lab Access + In-house Services for 5 to 15%

Growth Program

Accelerator

Corporate VC

Entrepreneurship Program

Incubator

Venture Capital Firm

Venture Fellows Program

Do you have an idea to make your community more resilient, equitable, & sustainable? The Venture Fellows program is a 9-month hands-on experience – we invest in diverse innovators to pilot good ideas that help communities become more resilient in response to the impacts of climate change.

Application open

Accelerator

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FAQs about Clean Energy funding

Best Clean Energy accelerators/VCs in 2026?

See the curated list below; filter by open deadlines and offer terms.

Which programs are open right now?

Check the “Open now” section for future deadlines and active cohorts.

What are typical funding/equity terms?

Offers vary by program; see each card for check size, equity, or equity-free notes.

Are there remote options?

Many programs support remote; confirm on each card’s details (remote flag or location).