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Axle Energy Raises €21M to Expand Energy Flexibility

Axle Energy raised €21M Series A led by Energize Capital to expand its energy flexibility platform across UK and international markets.

By Raina Gimmel

Karl Bach, CEO and co-founder of Axle Energy.

The big picture: Axle Energy, a British energy flexibility platform, has raised €21 million ($25 million) in Series A funding. The capital will be used to expand its operations across the UK and international markets, connect more distributed energy assets, and grow partnerships with OEMs, utilities, and fleet operators.

Why it matters:

  • Grid Strain: AI and electrification are rapidly increasing electricity demand, putting unprecedented pressure on existing power systems.
  • Energy Security: Reliance on international commodity markets for energy is risky, and building new generation and grid infrastructure is a multi-year process.
  • Virtual Power Plants: Axle Energy’s approach leverages existing infrastructure, bringing flexible capacity online quickly and reducing the need for expensive fossil-fuel generation during peak demand.

How it works:

  • Asset Integration: The platform turns EV chargers, home batteries, heat pumps, and other distributed energy assets into virtual power plants.
  • Market Access: Its software enables OEMs, energy suppliers, and fleet operators to connect these flexible assets directly to electricity markets.
  • Full Value Chain: Axle handles the entire process, from asset connection and forecasting to aggregating devices, bidding into electricity markets, dispatching assets, and settling payments.

The catch: The European energy flexibility market is experiencing significant investment and competition. Several comparable startups, including Capalo AI, Hybrid Greentech, Entrix, metiundo, Companion.energy, and Exergy3, have recently secured substantial funding. Axle Energy must continue to demonstrate its comprehensive vision and scalable business model to maintain its competitive edge in this rapidly evolving sector.

Key Facts

  • Company: Axle Energy
  • Amount: €21M
  • Round: Series A
  • Investors: Energize Capital (lead), Accel, Picus Capital, Eka Ventures
  • Founder: Karl Bach
  • Announced: 2026-07-08
  • Sector: Energy Flexibility
  • Headquarters: London, UK

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