In the face of climate change, we are
Powering early-stage climate innovation across London, the UK and beyond
Upcoming events

Sustainable Energy Futures Annual Conference
Event date - September 11, 2026
The Grantham Institute’s MSc in Sustainable Energy Futures 2026 cohort present their projects at this all-day conference. Read more
Latest news
16 climate startups, one mission: meet The Greenhouse Cohort 10
Undaunted’s tenth cohort of Greenhouse founders is turning bold ideas into stronger businesses as they tackle some of the ... Read more
Innovation Design Engineering alumni start-up Ponda brings plant-based insulation to the runway
Biomaterials company Ponda has seen its flagship material featured in fashion designer Genaro Rivas’ menswear collection. Read more
Innovation Design Engineering alumni startup Ponda brings plant-based insulation to the runway
Biomaterials company Ponda has seen its flagship material featured in fashion designer Genaro Rivas’ menswear collection. 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