Raise capital

Scale faster

JOIN OUR

UNSTOPPABLE

ACCELERATOR

BECOME UNSTOPPABLE

​This is a three-month program co-led by Helena Wasserman and Christine Amour-Levar, designed to equip climate startup founders around the world with the tools, strategy, and investor access they need to succeed.

Together, we're expanding Unstoppable into a truly global initiative—supporting founders who are solving the climate crisis from every corner of the world. Whether you're early-stage or ready to raise, this is where purpose-driven founders come to level up—with clarity, capital, and community.

Big Ideas,

Real

Impact.

GET BACKED BY THE RIGHT INVESTORS

3-STEP FRAMEWORK FOR IMPACT & GROWTH  

Step 1: Positioning & Storytelling

We review and refine all your external communications—pitch decks, investor messaging, websites, and brand positioning—for maximum clarity and market relevance. Because the right story, told well, can transform everything.

Step 2: Fundraising & Sales

Backed by a decade of experience - from Techstars and VC Advisory to the Clinton Foundation and Temasek - we’ve developed a proven fundraising methodology. Our alumni typically raise between US$400K and US$1.7M, and last year alone founders raised a collective US$40M. This also includes exclusive access to Investors for Climate city events globally.

Step 3: Accountability & Community

Progress thrives in community. Weekly mentorship calls and peer check-ins keep founders focused, fast-moving, and supported—because you run farther when you’re not running alone.

PROGRAM DETAILS

Duration: 3 Months
Next Program Start Dates:​ 24 June 2026​

Fee: US$5,000 (or SGD 6,500)


Want to go further, faster—and with the right people in your corner?
Apply now and become Unstoppable!

I4C UNSTOPPABLE PROGRAM

  • "Helena and Christine are an incredible duo. They complement each other seamlessly. They bring deep expertise in strategy, leadership and AI - along with an exceptional global network. In the best way, they challenged me to step out of my comfort zone and be more ‘visible' professionally. I’m truly grateful for our partnership, as we share same passion and values towards a more sustainable world.”

    Federica Bietta, Co-founder & Managing Director Coalition for Rainforest Nations

  • "Helena and Christine are exceptional leaders whose complementary strengths create a rare environment where bold ideas are refined into clear, actionable strategy. Their ability to challenge thinking, surface new perspectives, and offer sharp, practical guidance makes the I4C Unstoppable Accelerator an incredibly valuable experience."

    Dr. Kathrin Thora Weiß, Co-Founder and Managing Director foom

  • “Being part of Unstoppable has been invaluable. When I faced tricky challenges, the mentorship and the other start-up founders in my cohort were always there with great advice and support. Their insights have made a real difference in my journey, and I’m incredibly grateful for this community!”

    Michael Hoessly, Founder of Denhowood

  • “My time with the Unstoppable program has been nothing short of eye opening, confidence-boosting and motivating, I highly recommend the program to anyone looking to take their sustainability start-up to the next level.”

    Carlyle Howard Silveira, Founder of Muvuca Agroforestal

  • “I did not dare to raise my voice on biodiversity conservation efforts until I signed up to the Unstoppable accelertor. I learned how to increase my digital visibility to get qualified inbound leads and get my company to be better at closing clients and investors.”

    Amelia Campino, Founder of Nix Air

  • “From storytelling & fundraising to optimizing my sales cycle, Unstoppable has helped me elevate my game & unlock my full potential as a climate tech founder.”

    Alba Forns, Co-Founder of Climatize

  • “I've gained invaluable fundraising insights from Unstoppable that would have taken me years to learn on my own!”

    Avika Narula, Co-Founder of Living Roots

  • “For me, Unstoppable has been such a valuable platform for coaching, guidance, and exchange of experiences with other founders in the climate space. I find Helena and Christine’s drive and pragmatism to be very contagious as well.”

    Victoria Chen, Co-Founder & CMO of Qurator

  • "Investors for Climate is simply and quietly changing how climate gets funded. Led by co-founders Helena and Christine, I4C is shifting the dynamics of the rooms where capital moves. Their community is not only bringing new voices to the table - it is reshaping the table with elegance, strength and purpose."

    Camille Guitteau, Co-Founder & Managing Director of Bye Bye Plastic Foundation

40+ STARTUPS IN OUR PROGRAM TO DATE