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 Solutions
  • Debt Capital Solutions
  • Tax Capital Solutions
  • Offtake Solutions
  • Strategic 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
  • 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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Debt Capital Solutions
Utility Scale Clean Power
Tax Capital Solutions
Utility Scale Clean Power
Debt Capital Solutions
Utility Scale Clean Power
Tax Capital Solutions
Utility Scale Clean Power
Mergers and Acquisitions
Utility Scale Clean Power
Debt Capital Solutions
Tax Capital Solutions
Distributed Energy
Equity Capital Solutions
Utility Scale Clean Power
Mergers and Acquisitions
Utility Scale Clean Power
Mergers and Acquisitions
Utility Scale Clean Power
Debt Capital Solutions
Tax Capital Solutions
Offtake Solutions
Utility Scale Clean Power
Equity Capital Solutions
Data Centers
Equity Capital Solutions
Sustainable Technologies
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 TigerGenCo on $146 Million Senior Debt Financing for Utility-Scale Battery Energy Storage Project in NYISO

Apr 20, 2026

Read More Read the full article Marathon Capital Advises TigerGenCo on $146 Million Senior Debt Financing for Utility-Scale Battery Energy Storage Project in NYISO
Mar 24, 2026

Marathon Capital Advises Doral Renewables on $360 million of Production Tax Credits

Mar 17, 2026

Marathon Capital Advises GS Power Partners on $250 Million Corporate Debt Financing from Deutsche Bank

Feb 09, 2026

Marathon Capital Advises Hexagon Energy on Sale of 1.56 GW Steward Creek Solar Project to TerraForm Power

Nov 20, 2025

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

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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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