Blue Earth Summit

Three high-growth ventures secure investment through the new £600k+ BE100 Fund

In a finale decided by a live audience vote, Blue Earth Ventures has announced the winners of its 2025 BE100 competition at the Blue Earth Summit, recognising three high-growth ventures driving system change across sustainability, energy and materials.

The 2025 BE100 category winners are:

• Start: Jose Castro, Segura – improving the world’s water quality through easy, accurate, and affordable testing.
• Grow: Alex van Klaveren, RAFT Energy – A waste-to-energy innovator helping biogas and RNG plants maximise their return on investment.
• Scale: Natasha Boulding, Low Carbon Materials – creating next-generation low-carbon materials to decarbonise construction at scale.

See all BE100 Companies: https://blueearthsummit.com/be100/2025

The winners were selected following a week of live pitching at Blue Earth Summit, where 100 shortlisted ventures presented their solutions to investors, partners, and peers. The top two finalists in each category then went head-to-head on the main stage, each given four minutes to pitch before a live audience vote decided the final winners.

The three winners will receive investment from the newly launched BE100 Fund, created by Blue Earth Ventures in partnership with early-stage venture capital firm Haatch. The fund has raised over £600,000 to date from Blue Earth founders, and a network of exited entrepreneurs turned angel investors, exceeding its initial £500,000 target. The fund is targeting a total raise of £1 million+ to back early-stage ventures delivering measurable environmental and social impact alongside commercial growth.

Guy Hayler, Co-Founder of Blue Earth and Ventures Lead, said:

“The BE100 is the beating heart of Blue Earth. Our mission is to transform the way the world works by finding and funding business solutions that positively disrupt their industries. This year’s BE100 winners represent the strength of the pipeline we’re building, ventures capable of generating both meaningful impact and compelling returns.”

Now in its fifth year, the BE100 identifies and champions 100 early-stage businesses annually across the Start, Grow, and Scale categories. To date, Blue Earth has supported more than 55 ventures, helping raise £155 million in follow-on funding and unlocking hundreds of commercial partnerships.

Runners-up in this year’s competition were Filip Lövström from Roam, Tim Highfield from Kondor, and Craig Sterling from MarinaTex. Judges included Andy Medd, Marie Korde, Matt Jellicoe, Serena Koivurinta, Thomas Panton, Greg Robson, Guy Ranawake, Dr Charlotte Kirk, Vinay Solanki, Fred Ursell, Shruti Iyengar, Pippa Dunn, Phil Hails-Smith, Matthew Jolley, and Joe Hills.

The BE100 Awards took place during the Blue Earth Summit, which convenes investors, entrepreneurs and corporate leaders to accelerate solutions for a regenerative economy.