The Bradfield Centre and Trinity College, Cambridge is proud to announce the winners of the Trinity Bradfield Prize 2025, awarding £30,000 in prizes to student and researcher led ventures developing high‑potential innovations across technology and the life sciences.
GreenMixes, founded by Callon Peate and Dr. Dushanth Seevaratnam, secured the top prize for its carbon‑negative concrete, which transforms concrete into a carbon sink with no capex or workflow disruption. Judges highlighted the team’s impressive technical expertise, compelling commercial prospects, and the substantial contribution their innovation could make in tackling the climate crisis.
Dr. Dushanth Seevaratnam, said of their win, “We’re very grateful to Trinity College, the Bradfield Centre, and the selection team for giving us the opportunity to take part in the Trinity Bradfield Prize. It’s rare to have a competition that is so inclusive and nurturing.
For GreenMixes, winning the Trinity Bradfield Prize is a huge vote of confidence in our approach to decarbonising concrete. It validates that scalable, non-disruptive solutions can play a real role in tackling one of the world’s hardest-to-abate industries.”
Runner ups were:
- Maricene: £5k
- Phaseshift: Hellings Prize, £5k
- PinePeak returned to win the Angel Prize, of£10k which is awarded the finalist from the previous year that demonstrated the most progress towards commercialisation of their idea.
Across its seven editions the Trinty Bradfield Prize has received over 500 applications and awarded £155,000 in cash prizes. Alumni of the programme include Sparxell, AetoSense, Loci, BioTryp Therapeutics, with many past participants going on to secure millions of pounds in venture investment and grant funding, highlighting the Prize’s role as an important catalyst for early‑stage commercial success.
The Bradfield Centre, located at Cambridge Science Park, is managed by Mantle Space and serves as a leading hub for technology and deep‑tech entrepreneurship. Its community‑driven environment and programme of support help early‑stage companies accelerate their growth.
James Parton, Managing Director of The Bradfield Centre, and the organiser of The Trinity Bradfield Prize, Mantle Space, said, “The 2026 final was our biggest and best yet, with 18 University of Cambridge Departments and 19 Colleges represented in our applications.
Now into its seventh edition, The Trinity Bradfield Prize has become a leading showcase of the world-leading science and technology emerging from The University of Cambridge. More than 500 teams have applied to the competition since its inception, and an impressive number of previous finalists have gone on to create exciting new companies, raising more than £15m in venture backing.
In addition to the cash prizes and exposure they gain from participating in the competition, all of our finalists benefit from subject matter expert mentoring, introductions to investors, and complementary membership of The Bradfield Centre to help grow their ventures.
Congratulations to GreenMixes, Maricene ,Phaseshift, and PinePeak and I look forward to tracking and supporting their onward journeys.”
The Trinity Bradfield Prize remains a key driver of innovation within the UK economy. With the support of the prize, winners are well positioned to advance their technologies and contribute to the next wave of commercial success stories.
Guy Baker, CEO of Mantle Space, adds, “As The Bradfield Centre continues to grow under Mantle Space’s management, the team remains focused on creating more collaboration opportunities and building partnerships that accelerate innovation and support early‑stage innovators across the Cambridge ecosystem.”
