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Who are we & how can we help you?

The Green Techpreneur is your launchpad for success in climate tech. We provide a springboard platform for startups, connecting you with investors through our dynamic marketplace. Get expert feedback with our ‘Pitch Clinic’ and stay informed with our magazine, featuring the latest stories of climate innovation and founder insights. Our mission is to Spark the Transition to a world where people, planet, and profit thrive in harmony. Join our global ecosystem and be part of the movement driving change.

Our Climate Marketplace Track Record

£>200m

Capital raised for our start ups since 2020

>170

climate-positive companies listed

>4,500

institutional and angel investors

What industry leaders say about working with us

The Green Techpreneur helps you share your story in a real, engaging way to help your clients connect with the authenticity of your founder launch journey. They deliver the messages of your vision, mission and values to create greater impact as a sustainability leader. The level of commitment the team has for helping climatetech startups succeed is a joy to watch.

Leon Gerard Vandenberg CEO & CTO Sunified Group

The Green Techpreneur has a way of helping you tell your story in a powerful, authentic way. Working with The GT is a pleasure and a great opportunity. Marianne gets to the heart of your journey and pulls out what's important for you to share and puts it all together in a way that is both honest and fascinating out to your target audience. She is brilliant at what she does and will save you time and money spent trying to figure it all out it through trial and error.

Perry McCarthy Ex racing driver and the original 'Stig' from BBC Top Gear

The Green Techpreneur has created a unique and above all invaluable service, where huge insight within the climatetech sector is fused with a passion for helping environmentally-focused companies. The result is an easy to use platform which provides SME's with real opportunities to gain visibility and be matched with likeminded investors. Ingenious..

Emma Coleman Founder at EmmaColemanSkin

Marianne has helped quite a few start-ups gain market awareness and supported them in sales. She has a great network in the Green-Tech world from investors to board advisors through to marketing companies. If you want your company to grow in the Green-Tech space - I would recommend you get in-touch with her. She thinks out of the box.

Mark Thackeray Non-exec Director, The Green Techpreneur

Our founder launch journey story had steller engagement, told our unique story, and shone a light on our brand’s strengths. I highly recommend The Green Techpreneur to business owners and entrepreneurs looking to amplify their business’ impact online.

Patrik G Skyfri Co-founder

We reached out to The Green Techpreneur for support with our upcoming funding round.The team did a fantastic job of quickly reviewing the pitchdeck and helping Greentech Innovators gain visibility and connect with potential investors. We now have phase II funding on the line and have gotten a boost for our fundraising via the investor marketplace. I highly recommend The Green Techpreneur to climate tech startups looking for support with their fundraise.

Ingmar Høgøy Founder & CEO Greentech Innovators

Five ways we can help you

Investor marketplace

Showcase your pitch to a network of 3,000+ proven climate investors on our marketplace and attract the right leads effortlessly.

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Fundraising advisory

Get investment-ready with expert fundraising advisory, strategic guidance, and hands-on support to secure the capital you need.

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Create an Impactful brand

We create impactful, authentic websites that bring your story, mission, and vision to life.

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Our magazine

Inspirational climate founder and investor stories with actionable business tips to help you build, grow and thrive.

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Free ‘Pitch Clinic’

Perfect your pitch—join our free bimonthly ‘Pitch Clinic’ webinars and get expert feedback to elevate your climate business’ pitchdeck.

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New in the magazine

  • Entrepreneurs
  • Investors
  • Video

How Homaio is cracking open lucrative EU ETS investing

Homaio is betting big that this will become a superstar asset class and wants to give everyday investors a piece of the pie. By opening up access to the EU Emissions Trading System (ETS), they’re aiming to democratize carbon investing—transforming what was once the domain of institutional players into an opportunity for climate-conscious retail investors.

FlyFarm

Cut waste. Cut carbon. Create value. FlyFarm’s insect bioconversion platform enable waste into sustainable protein, oil & fertiliser. Seed €1,400,000. View listing and contact on the Climate Marketplace.

Founder Wisdom

Felipe Villela

Co-Founder of reNature

Build a network of people that can support you in reaching your goals, collaboration is the key.

Safia Qureshi

Founder of CLUBZERØ

Don’t defer.
Do it now.
Get shit done.

Anthony Agnew

Development Director of Yoo Energy

Do the hard thing first. I think the most important thing is just to do the next thing, whatever is in front of you, just take that step and keep going.

Patrik G

Co-Founder & CEO at Skyfri

The team has to stick together. Family is a cliché, but it’s a common vision, common mission that the team has to always feel, to always want to stay ahead of the curve

Chris Rea

Director of AESSEAL

Do all your whining and get as upset and wound up as you feel like, but at the end of the day, no matter how bad it is, find reasons to be cheerful, find something you can improve.

Duncan Grierson

Counder of Clim8 Invest

There are always challenges, you’re constantly two steps forward, one step back. Have the vision in mind and let that propel you and drive you forwards.

Pablo Schwarzbeck

Founder of Produce Pay

My mantra is Be Better. Humanity’s best innovations come from pushing ourselves to exceed beyond our former self.

Investment Opportunity

By building Latin America’s largest AI-powered B2B SaaS marketplace for construction materials, Construex is helping 1.2M+ sellers go digital — unlocking over $3.2B in GMV and growing revenue 13x YoY.

Series A: Eur 22,600,000

Visit our Climate Marketplace to learn more.

Meet Our Partners

She Leads is a global community of entrepreneurs and investors helping female startup founders fundraise and grow their businesses.

StarBeam Capital is backing ambitious entrepreneurial teams focusing on hardware and software innovations in the energy and space sectors. We are engineers, physicists and founders who invest in what we know and are experts in – Deep Tech.

Imperial College London’s Climate Entrepreneurs Club is a multidisciplinary team of graduate students with a goal to foster and support entrepreneurial ideas that address climate change with a real impact.

Featured Awards

I'm Marianne Lehnis

Founder of The Green Techpreneur, Forbes Climatetech Contributor, and lover of storytelling, healthy living, nature, a can-do attitude and all things sustainability and innovation.
I started out as a journalist but quickly grew frustrated with the constant negativity in the news—where were the stories of people making a real difference? When the pandemic hit, I took the leap and created The Green Techpreneur to spotlight entrepreneurs driving climate solutions. Since then, it’s grown into an award-winning marketplace platform, helping climate tech founders connect with investors and raise over £200 million. I believe solving climate change is within our reach—if we work together.
My mission? To connect, inspire, and equip you to #SparkTheTransition to a greener future. Let’s make it happen.