In the face of climate change, we are

Powering early-stage climate innovation across London, the UK and beyond

Our window of opportunity to tackle the climate crisis is closing fast. We need practical solutions on a scale never achieved before: high-quality, better implemented innovation plays a vital role in a sustainable future. Undaunted’s ecosystem aims to make London and the UK a great place to start and scale solutions to the climate challenge at pace.

Innovators: apply now

Undaunted The Greenhouse
The Greenhouse

The Greenhouse is a 12-month accelerator supporting early-stage (“pre-seed”) startups and spinouts with high potential deeptech, fintech, cleantech solutions to tackle climate change. It helps them get investor-ready and boost their commercial success.

Applications open: 15 July 2026

Deadline: 21 August 2026

Who should apply?

> Founders tackling climate change with science- or tech-based innovations – including deep-tech

> Startups and spinouts at early-stage (pre-seed or seed)

> Ventures that are UK-based – companies registered in the UK or willing to do so

> Teams that are able to attend in-person sessions in London

What startups get

> Up to £20k equity-free grant funding

> 12-month support programme to move from lab to commercial traction

> Office space in the White City Innovation District

> Imperial College London’s world-class facilities, expertise, and networks

> Coaching and mentoring from experienced entrepreneurs and industry experts

Banner: sustainable food accelerator
Sustainable Food Accelerator

The Sustainable Food Accelerator helps startups generate the data that makes corporates confident to pilot and investors confident to back. Founders graduate with data, validation and commercial proof required to secure pilots, attract investment and scale.

Applications open: 13 July 2026

Deadline: 21 August 2026

Who should apply?

To apply, you should:

Be developing a technology in sustainable food with clear commercial potential.

Ideally have validated your technology to approximately TRL 3-4, with a clear plan for technical and commercial validation during the programme. Earlier or later-stage exceptional ventures with a strong fit are also encouraged to apply.

Be able to participate in key in-person programme activities at Imperial College London. Applications are welcome from founders worldwide. Successful applicants may be required to establish a UK legal entity during the programme, depending on the startup’s situation and programme requirements.

Be able to commit to the 12-month programme, including at least one day per week dedicated to coaching, workshops, and implementation.

Typically be pre-Series A, with limited institutional or commercial investment raised. We welcome applications from exceptional companies that may fall outside this profile if there is a strong strategic fit.

We actively encourage applications from women, people from minority ethnic backgrounds, disabled founders, and entrepreneurs from all backgrounds.

What startups get

> £100k equity-free funding and access to up to £2M investment: non-dilutive capital from day one, with access to equity-funding for future rounds.

> End-to-end scale-up infrastructure: access the facilities, expertise and technical support needed to progress from lab validation to commercial readiness.

> Corporate pilots with committed budgets: tackle real-world corporate challenges and pilot your technology with industry partners.

> Regulatory & Grant Writing support: stay ahead of evolving regulatory and policy requirements with expert guidance from our Policy and Regulatory Impact Unit, alongside bespoke grant writing support to secure non-dilutive funding.

> Backed by leading foodtech VC investors: build relationships with investors who know us and trust the programme, and engage through mentoring, office hours and fundraising support.

> Technical translation and business integration: The Bezos Centre team combines scientific expertise, commercial insight, regulatory knowledge, scale-up experience and industry partnerships to accelerate your business growth across key areas.

Upcoming events

Cleantech Innovation MSc 2026 Show
Cleantech Innovation MSc 2026 Show

Event date - July 13, 2026

Get ready to dive into the future of clean technology with the Imperial Cleantech Innovation MSc 2026 event! Read more

Weird Weather: The rise of climate conspiracies and disinformation
Weird Weather: The rise of climate conspiracies and disinformation

Event date - July 16, 2026

Join the Grantham Institute for a thought-provoking discussion on the rise of conspiracy theories and disinformation about our changing climate.  Read more

Weird Weather: The rise of climate conspiracy theories & disinformation
Weird Weather: The rise of climate conspiracy theories & disinformation

Event date - July 16, 2026

Join the Grantham Institute for a thought-provoking discussion on the rise of conspiracy theories and disinformation about our changing climate.  Read more

Latest news

Staying cool: Emissiv wins Greenhouse Demo Day with paint that cools buildings by emitting heat into outer space

Startup pioneering radiative cooling coatings and geospatial software wins top prize at Undaunted’s Greenhouse Demo Day. Read more

Imperial and the Earls Court Development Company announce climate innovation partnership as part of WestTech London

Imperial College London and the Earls Court Development Company (ECDC) have established a new partnership to advance climate ... Read more

UK will lead sustainable fashion revolution, predict industry experts

Fashion industry leaders, investors and founders joined eleven of the UK’s top innovators at Imperial to discuss what is needed ... Read more

Unimaginable Unprecedented Undaunted

Our alumni will have real-world impact

We build a bridge from the experimentation and discovery stage of climate technology, nurturing innovation until it is ready to be scaled up. Our activities – including our flagship Greenhouse climate accelerator programme – stimulate the commercial sector to follow and develop a wider ecosystem where green solutions can flourish. We are creating the blueprint for a successful climate innovation ecosystem.

Undaunted in numbers

%

The survival rate of Undaunted startups is 88 per cent, compared to the industry average of 10 per cent. 5 per cent of these companies have exited through acquisition.

165+

More than 165 startups have taken part in Undaunted’s accelerator, now known as The Greenhouse

$1.33bn

Undaunted alumni companies have gone on to raise over $1bn investment since 2012

>1,600

They operate across 30 countries worldwide, and have created over 1,600 jobs. As of September 2024 the total number of employees stands at 1,617

Impact forecast of Undaunted alumni by 2030

29 million

29 million tonnes of cumulative carbon dioxide equivalent forecast to be saved by 2030. This equates to 7% of the UK’s annual greenhouse gas emissions

76 million

76 million tonnes cumulative waste forecast to be avoided by 2030 across the Undaunted startup portfolio. This is equivalent to a third of the UK’s annual waste

7.4 million

7.4 million litres total fresh water to be saved by 2030, equivalent to the annual consumption of 75 thousand UK households

The challenge is huge, but we are Undaunted – join us?

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