Undaunted’s flagship accelerator programme

The Greenhouse

Early-stage deeptech, fintech, cleantech startups tackling climate change – get investor-ready, boost your commercial success, and tackle climate change.

The Greenhouse provides:

Up to £20k equity-free grant funding

We provide up to £20,000 equity-free grant funding; by the end of the 12-month programme startups aim to raise minimum £100k. Support continues via our alumni programme and the Imperial Investor Network. Our alumni have raised $1.33 billion investment since 2012, operating across 30 countries, creating more than 1,600 jobs.

World-class facilities, expertise & networks

Free office and meeting space at Scale Space in London’s White City Innovation District and access to Imperial College London’s world-class facilities, expertise and networks, such as Imperial’s Advanced Hackspace; the UK Centre for Greening Finance and Investment, the Greenhouse Gas Removal Hub; and Royce at Imperial.

Expert coaching, industry mentorship and workshop

The Greenhouse is at the heart of Imperial’s thriving climate innovation ecosystem and can provide unparalleled support for a broad range of high-quality climate solutions, including deeptech and tech for harder-to-change sectors, plus expert coaching, industry mentorship and workshops.

Sound good?

Applications for The Greenhouse Cohort 8 have now closed, but you can explore the programme in more depth and stay in-the-loop on future opportunities by signing up to our newsletter via the links on the right.

Eligibility criteria, what we're looking for and how to apply

The programme in more detail

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What our alumni say…

“It felt so exciting, and gave us hope that our messy, weird design “project” could be a real, tangible business. Many tech programmes are focused [mainly] on scale and growth. While that is important to The Greenhouse, they don’t question the fundamental values of your business around sustainability and eco-friendliness. The support we’ve received has played a huge part in the progress we’ve made.”

Elizabeth Lee, Co-founder of Carbon Cell (The Greenhouse Cohort 5). On the right you can watch Liz pitch at The Greenhouse Demo Day in April 2024 on the historic stage on The Royal Insitution Theatre.

“The Greenhouse workshops, trainings and exposure were first class. The programme connected us with the biggest player in our industry, and with all the legal, IP and business services we could possibly need. The mood among the startups was really supportive, and we accelerated each others’ growth a lot by learning from each other.”

Dan Ellis, Founder of Decarbonite (The Greenhouse Cohort 5 ). On the left you can watch Dan pitch at The Greenhouse Demo Day in April 2024 on the historic stage on The Royal Insitution Theatre.

“The Greenhouse is one of the best programmes we’ve been on. It’s supported by a well-connected ecosystem which spans into legal, recruitment and much more.”

Abiel Ma, CEO and Co-founder of Vuala (The Greenhouse Cohort 5). On the right you can watch Abiel pitch at The Greenhouse Demo Day in April 2024 on the historic stage on The Royal Insitution Theatre.

The Greenhouse 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

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

>$1.33bn

Undaunted alumni 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

Our alumni will have real-world impact

Impact forecast of Undaunted alumni by 2030

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

Meet more of our alumni

Supported by

The Greenhouse programme is supported by the Greater London Authority via the Mayor of London; HSBC UK, through the bank’s global Climate Solutions Partnership; and the Inflexion Foundation.

We conduct thorough due diligence to ensure that our supporters and partners are committed to reducing their environmental impact. Whilst we are aware that HSBC currently finances a number of industries that significantly contribute to greenhouse gas emissions, we know they have a strategy in place to help their customers reduce their emissions and to reduce their own – for more information please visit the HSBC Climate Strategy webpage.