Clean Tech Challenge 2024

Changing the world
for better

Rewarding the next student led innovative clean technology ideas


The competition

The CleanTech Challenge is a global business plan competition for students with innovative clean technology ideas, jointly hosted by the London Business School and University College London. It began in 2011 and has been run successfully for the past 12 years. Winners of the international chapters compete as finalists in the UK competition.

The objective

Great Cleantech technologies emerging from research often flounder through lack of good commercial input early on. Meanwhile, management schools have many entrepreneurial students who are worried about the environment but who lack impactful ideas to work on. To bridge this gap, the interdisciplinary competition was created.

Who can enter

The Challenge is open to all current university students (undergraduate and postgraduate) enrolled in a degree programme at a recognised Higher Education Institution anywhere in the world as of 1 January 2024.

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Competition Guidelines

The competition takes place over three different stages between January and April each year. Submit your proposals before Feb 4th 2024.

Stage 1

All you need is an innovative Cleantech idea. Submit a 200 word pitch by Feb 4th 2024 clearly outlining (i) the idea, (ii) cleantech impact, and (iii) why it would be commercially viable.

Stage 2

We want to meet you! Invited entries will require a short 2 minute video submission introducing the members of your team and a high level overview of your Clean Tech proposal. Deadline for videos is Feb 18th 2024.

Stage 3

Selected entries are asked to develop their idea and present a pitch deck by March 10th 2024. The deck will be reviewed by prospective investors.


Finalists will undergo training from industry experts from the environmental, entrepreneurial, and science sectors over the course of April. Bootcamp finals take place between April 23rd - 24th where finalists present a 10-minute pitch.

Our Story

Rewarding innovation

Students compete in cross-functional teams combining technical and business skills. Startup ideas are expected to be at the concept phase at which point they would likely only attract pre-seed funding.

>500 Entries

We judge hundreds of applications every year

£20,000 Prize Fund

Access to world class clean tech venture capitalists

Investor Network

Get mentoring from the best clean tech entrepreneurs

Past Events

Will you create the next clean technology idea?

Past winners

Congratulations to our most recent winners

A&B SMART MATERIALS is a service provider that tackles the issue of lost energy and revenue generation due to overheating solar panels.
2023 Winners
WASTEQ is an AI-powered demand forecaster of food perishables in shops that reduces both food shortages and importantly food wasting. In turn this helps shops increase profit.
2021 Winners
SYNTHESEA Biological platform producing sustainable low cost omega-3 for aquaculture
2020 Winners
PHABIO Bio-based polymers to replace conventional plastics like HDPE/PP
2019 Winners
BIOKIND Protein of the future: sustainable protein feed for aquaculture, livestock and pets
2018 Winners