Innovative solutions powering a globally decarbonized future

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 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 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
Experience

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

Debt Capital Solutions
Distributed Energy
Mergers and Acquisitions
Distributed Energy
Mergers and Acquisitions
Data Centers
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
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.
News & Events

Marathon Capital Advises PureSky Energy on Landmark $183. 7MM Investment-Grade Refinancing of Multi-State Community Solar Portfolio

Jul 15, 2026

Read More Read the full article Marathon Capital Advises PureSky Energy on Landmark $183. 7MM Investment-Grade Refinancing of Multi-State Community Solar Portfolio
Jul 14, 2026

Marathon Capital Advises GIP on Acquisition of Summit Ridge Energy

Jun 08, 2026

Marathon Capital Advises VOLT‑UPC on Strategic Collaboration for Large-Scale AI Data Center and Integrated Energy Platform in Texas

Apr 20, 2026

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

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

  • North America
  • Europe
  • Latin America
  • Asia Pacific
Connect With Us