Aerleum

  • Seed
  • Energy
  • Industry
  • Sébastien Fiedorow

    Sébastien Fiedorow

    CEO & Co-Founder

  • Steven Bardey

    Steven Bardey

    CTO & Co-Founder

Aerleum was co-founded by a chemist and a venture capitalist, combining deep technical and strategic expertise.

Contact us

Aerleum turns CO₂ from air into clean fuels and chemicals, aiming for fossil price parity at scale.

Aerleum has pioneered a revolutionary reactive CO₂ capture technology, enabling direct conversion of atmospheric CO₂ into high-value commodities such as fuels and chemicals. This groundbreaking one-step approach unlocks price competitiveness and ensures scalability and the production of carbon-neutral products. It paves the way for deep decarbonization in hard-to-abate sectors: maritime, aviation, and chemicals, where viable solutions don’t exist.

investors

  • Marble
  • Norrsken
  • HTGF
  • 360 Capital
  • Bpifrance

1,400 kg CO2

CO2 avoided per ton
of methanol produced

Building a future where energy and materials no longer rely on fossil fuels, but on CO₂, from air to industry. Beyond alternatives, Aerleum rewrites the baseline: clean, scalable, competitive.

Problem

The race to decarbonize hard-to-abate sectors is on, yet clean, cost-competitive synthetic fuels remain out of reach. Renewable methanol is emerging as a strategic alternative, but supply falls far short of soaring demand. And its cost remains up to 5× higher, due to fragmented value chains, energy-intensive processes, and limited access to renewable CO₂. Meanwhile, regulatory and commercial pressure keeps mounting from zero-emission mandates in shipping to brand-driven decarbonization strategies across industries.

The Aerleum team in their workspace — scientists and entrepreneurs working to transform captured CO₂ into carbon-neutral chemical alternatives like sustainable methanol
The Aerleum team in their workspace — scientists and entrepreneurs working to transform captured CO₂ into carbon-neutral chemical alternatives like sustainable methanol

Aerleum combines a tier-1 team, a bold vision to replace petroleum with CO2 from air, and a solid business model ready for scale

Alexandre Mordacq - partnet at 360 Capital

Alexandre Mordacq

Partner at 360 Capital

Solution

Aerleum integrates CO₂ capture and conversion in a single reactor, eliminating energy-intensive steps and slashing production costs. Our modular system delivers clean methanol with up to 2x higher energy efficiency and a carbon footprint 90% lower than fossil fuels. By reaching cost parity with fossil-based methanol and performance on par with existing industrial fuels, Aerleum removes key barriers to adoption, paving the way for synthetic fuels to scale where they’re needed most.