Innovative solutions powering a globally decarbonized future

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We Are
The largest independent investment bank solely dedicated to servicing the clean economy.
Our Focus

A sole focus on the energy transition.

Throughout our more than two-decade history, we have consistently delivered credible and proven strategies to our clients resulting in new and profitable lines of business.

As the world shifts from a fossil-fuel-driven, high carbon environment to the decarbonized future of tomorrow, Marathon Capital is dedicated to supporting businesses, governments, and non-governmental organizations navigating the risks and challenges associated with their environmental impact.
Our Focus
Our Services

With deep expertise in a variety of financial and strategic solutions, we can structure innovative transactions tailored to specific needs.

  • M&A
  • Equity Capital Markets
  • Debt Capital Markets
  • Tax Credit Advisory
  • Offtake Advisory
  • Energy Transition Advisory
Our Services
Our Industries

Our team has extensive experience in renewable power, sustainable infrastructure, low carbon molecules, sustainable technologies, e-mobility, and more.

  • Utility-Scale Clean Power
  • Distributed Energy
  • Data Centers & Digital Infrastructure
  • Low Carbon Molecules
  • Sustainable Technologies
Our Industries

Our
Experience

We have built a reputation as a leading advisor in clean energy, infrastructure and technology.

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Mergers and Acquisitions
Distributed Energy
Equity Capital Markets
Sustainable Technologies
Mergers and Acquisitions
Utility Scale Clean Power
Mergers and Acquisitions
Utility Scale Clean Power
Equity Capital Markets
Distributed Energy
Mergers and Acquisitions
Utility Scale Clean Power
Mergers and Acquisitions
Utility Scale Clean Power
Mergers and Acquisitions
Utility Scale Clean Power
Mergers and Acquisitions
Utility Scale Clean Power
Mergers and Acquisitions
Utility Scale Clean Power
Mergers and Acquisitions
Utility Scale Clean Power
Mergers and Acquisitions
Utility Scale Clean Power
Who We Are

The right partner
at the right time. 

Today, every business is addressing the needs associated with their decarbonization goals. Marathon Capital has the expertise and experience necessary to create and implement innovative strategies.
About Us
News & Events

Marathon Capital Advises Overwatch Capital on 1 GW Partnership with Idemitsu to Build High-Density AI Data Centers Across Ten U.S. States

Nov 20, 2025

Read More Read the full article Marathon Capital Advises Overwatch Capital on 1 GW Partnership with Idemitsu to Build High-Density AI Data Centers Across Ten U.S. States
Sep 10, 2025

Marathon Capital Advises Origami Solar on Sale of Company to Nextracker

Sep 04, 2025

Marathon Capital Advises Generate on Sale of Distributed Solar Portfolio to GoodFinch

Sep 03, 2025

Marathon Capital Advises Westlake Corporation on Multi-Year REC Purchase Agreement

Jun 11, 2025

Marathon Capital has Advised Earthrise Energy on its $630 Million Financing for MISO-based Solar Project

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A global financial and strategic advisor focused solely on the clean economy and the energy transition.

  • North America
  • Europe
  • Latin America
  • Asia Pacific
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