Amazon has selected the 2025 cohort of its Sustainability Accelerator program.

The program aims to support the product development of sustainable solutions, ranging from waste management services to next-generation battery technologies.

The company selected 11 companies to join its Climate Tech cohort out of a total of 550 applicants, who are provided the opportunity to pilot their technologies across Amazon’s European operations.

The program has been active since 2022, and each year changes its focus. Last year, the program focused on businesses seeking sustainable solutions for packaging, buildings, and the circular economy. In 2025, participating companies addressed three crucial environmental challenges: energy efficiency, waste reduction, and water management.

To qualify for the program, the companies must have progressed beyond the prototype phase and be working towards generating initial revenue, as well as expanding their operations.

As part of the program, Amazon will supply the companies with four weeks of experience-led workshops, mentoring, and leadership panels. At the end of the program, companies will be provided with an opportunity to pitch a pilot project to Amazon, which typically ranges from £50,000 ($67,762) to £2 million ($2.71m), depending on the scope.

The selected companies include:

Mhor Energy (UK): A flow battery developer that stores energy in liquid form. The company claims that it can work efficiently even in high temperatures without needing cooling systems and has an estimated lifespan of 20 to 25 years.

Greyparrot (UK): A computer vision systems company that uses AI to observe waste conveyor belts, identifying and categorising materials in real-time.

Vuala (UK): A bio-mechanical “artificial stomach” developer that uses specialized microorganisms to process mixed food waste at customer locations. The waste is then processed to become raw material for biogas and hydrogen production.

Cartesian (Norway): A Thermal battery developer that stores heat or cold in materials that can change their physical state.

Over Easy Solar (Norway): Developer of a lightweight solar system that stands vertically instead of lying flat and is about half the weight of conventional panels.

Active Surfaces (US): Developer of ultra-thin, flexible solar sheets that use 10 times less material than traditional solar panels while maintaining comparable efficiency.

Omniflow (Portugal): A company that uses wind and solar power to create streetlights that use 90 percent less energy compared to conventional examples.

Blue Frontier (US): An air conditioner developer that can separately manage temperature and humidity, unlike traditional ones.

Shayp (Belgium): Developer of a water leak solution via innovative monitoring that measures ‘the pulse’ of pipelines, identifying issues that often go unnoticed.

Solaq (Netherlands): A company that transforms atmospheric moisture into drinking water using a specialised absorption process, even in areas with low humidity.

NANDO (Italy): A company that transforms regular waste bins into intelligent monitoring stations, using AI to analyse waste in real-time.