Carbon Cell

Carbon Cell is a carbon-negative, non-toxic, fully compostable replacement for polystyrene and other polymer-based insulating foams, made with biochar.

CLIP Energy

CLIP Energy is powering down home energy use with smart sensors and AI.

Decarbonite

Decarbonite is developing carbon negative, non-toxic, and fully biodegradable fabrication materials as a radically green alternative to particle and fibre boards.

Econya

Econya is developing a methodology to drastically reduce carbon emissions in the built environment by using sustainable materials and designing for disassembly so that resources can have multiple lives.

Epicue

Epicue is developing heat stress management for workers in high heat environments, via low-cost wearable sweat monitoring.

Fibe

Fibe is a materials startup developing the world’s first textile fibres out of potato harvest waste.

FIIBA

FIIBA is identifying and scaling unsung bio-textiles for the fashion industry and beyond. It's achieving game-changing carbon reductions through material innovation and its unique end-to-end network.

Guerrilla

Guerrilla is a retrofittable device enabling roadside drains to capture runoff pollution which would otherwise be washed into the ocean, without using any membranes, electricity or moving parts while maintaining high flow rates.

Ki Hydrogen

Ki Hydrogen is a deep-tech venture developing novel waste-to-hydrogen technology that produces green hydrogen using 75% less energy compared with water electrolysis.

Nium

Nium uses nanotechnology to decarbonise chemistry, beginning with the most polluting chemical industrial process on earth: ammonia production.

PulpaTronics

PulpaTronics is developing recyclable carbon-based RFID tags made to preserve more of our world's resources.

Samudra Oceans

Samudra Oceans is developing AI and Robotics to scale seaweed aquaculture.

Tazaar

Tazaar bridges the gap between manufacturers and consumers with a digital service record that offers product traceability and customer engagement throughout the product lifecycle.

Vuala

Vuala X1 makes food waste recycling easy by automatically separating food waste from other wastes, generating raw material for energy production on site; saving 95% on logistics and labour costs, and 75% lower carbon emissions.

ZoriTex

Zori Tex is optimising textile waste sorting – combining vision and AI-powered technologies to drive circularity in fashion textile recycling.

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