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The Kinjani Greenhouse

Grow your idea into a climate-tech business.

The Kinjani Greenhouse is Africa's launchpad for the next generation of climate and nature-inspired innovators.

Join this online course to find your startup idea, sharpen it, and turn it into a real venture.

 · 100% online · Free to join · Next pitch day is the 10th of August ·


Apply Now Sign In


 Live Workshop: Nature-Inspired Innovation for Climate  See more

The Climate Crisis

One of the greatest challenges of our time. 

One of the greatest opportunities.


The climate crisis is set to reshape Africa and every industry - including agriculture, water, materials, waste. Where most people see a crisis, founders see the chance to build.

The next generation of African companies won't just adapt to climate change. They'll turn the response to it into economic and environmental regeneration. The Greenhouse exists to help you see that opportunity clearly and act on it.

Why now? Why this course?

Africa has the talent. What's been missing is the early-stage venture support.


As a continent, we have the resources, the opportunity, and the world-class talent. What we've lacked is the financial and venture support that helps a founder take the first step ... from an idea to a thriving startup.

Kinjani was built to close that gap: to bring together scientists, operators, and entrepreneurs solving real problems in the industries that matter most.

Turn bold ideas into companies that can regenerate our African economies and our environment.

The Greenhouse is where we make that real (with people like you).


What you'll gain

Learn how to start a climate-tech company

The Greenhouse is a free online course on how to start a climate-tech startup.

Over six stages, you'll learn by doing. 

Every stage ends in a concrete milestone. Something you build for your own venture, not a hypothetical exercise.

Spot the opportunityValidate the problemFind your customerShape the solutionBuild a prototypeMake your case

Spot the opportunity

Learn to see climate challenges as business opportunities grounded in Africa's unique advantages. 

Validate the problem

Test whether the problem is real by talking to the people who live it.

Find your customer

Discover who you're building for, and go deeper than assumptions.

Shape the solution

Develop a solution and test your riskiest assumptions.

Build a prototype

Turn the idea into something tangible, with help from AI tools to move faster.

Make your case

Leave with a clear pitch that opens doors with partners, funders, and supporters
plus very clear next steps.

Who it's for

The Greenhouse is built for diversity.

You don't need startup experience. 

You need curiosity and a problem worth solving. 

Climate startups need diversity. Wherever you're starting from, you can bloom here.

If you're from a climate-vulnerable community or a region surrounding heavy industry, we especially encourage you to apply.

Scientists

Turning lab discoveries into real-world solutions.

Operators

Who understand supply chains and how industries really work.

Climate-vulnerable innovators

Built for those living the daily reality of floods, drought, or mine waste, specifically who see opportunity where others see crisis.

Entrepreneurs at any stage

Who want to start or grow a climate or nature-based idea.

Technical consultants & specialists

Ready to turn systems insight into scalable environmental innovation.


What you'll need

High ambition​. Climate-tech focused. Keen on real-world impact. 


All you need to start is a computer and internet access, a commitment to learning, and one big idea you're determined to explore.

Amplify your ambitions by working alongside others who hold a high bar.

The Kinjani Greenhouse

Format: 100% online, self-paced

Starts: Now

Next pitch day: 10th August (RSVP)

Duration: Six stages over 6-12 weeks (on average)

The prize: A pitch event in August, with $2,500 in business and leadership coaching across five winners.

Apply Now

2025 Greenhouse winners

Real solutions start in the Greenhouse

Michèle Schiess

A vortex entrainer retrofitted into effluent pipes; potential to cut harmful pollutants by 80%+ and sequester 20 MtCO₂e at scale.

South Africa

Chantal Omondi

Turns Nairobi's waste cooking oil into B20 biodiesel, with the potential to cut fleet fuel costs by 30% and keeping millions of litres of waste oil out of waterways. 

Kenya

Sara Usman

Carbon Smart Spaces, a material-intelligence tool cutting embodied carbon by 40–50 tons per 150 m² built.

Rwanda

Alimamy Bangura

A moringa-based nano-fertiliser and low-cost storage system improving yields up to 40% and cutting post-harvest loss 25%.

Rwanda

Our founder says it best

Why we built the Greenhouse


"The industries with the greatest potential to drive climate impact and economic growth are right here in Africa. 

We have the resources, the opportunity, and the talent. What we've lacked is the venture ecosystem.

This is what Kinjani is built on. African soil, African opportunities, and African talent. 

The Greenhouse is where we make it real"




Caitlin Wale
Founder & Managing Partner, Kinjani

Frequently asked questions

Common questions about the Greenhouse

The Greenhouse is open to anyone, just not everyone. 

This programme is open to any individuals, founders, scientists, operators or specialists:

  • who choose to innovate
  • who wants to grow their understanding of climate-tech,
  • who want to solve real problems and 
  • who want to play a role in creating a life-friendly future.

Yes, on completion you'll reach a certificate of completion.

The course is approximately 20 hours, broken up into short sections.

Ready to grow?


Join the Kinjani Greenhouse