Mark Riedy primarily focuses his practice on U.S. and international project development and finance and private placement representation of renewable and conventional energy, clean technology, environmental and infrastructure clients. His clients principally represent developers, lenders, EPCs, O&Ms, equipment providers, private equity, venture capital and infrastructure funds.

In his more than 35 years of practice, Mr. Riedy has represented clients in domestic and international matters, including energy and infrastructure, project development and debt and equity financing contracts, mergers and acquisitions, technology outsourcing, investment fund structuring and related investments therefrom, venture capital and private equity structuring and related contracts, and compliance with regulatory and legislative issues. He also has represented clients in international disputes before U.S. and foreign agencies, dealing with matters such as anti-dumping, export controls, sanctions, and anti-bribery. Mr. Riedy has counseled renewable and conventional energy clients doing business in more than 50 countries.

Prior to joining the firm, Mr. Riedy was an attorney in the Washington, D.C. office of an international law firm, where he co-led its Energy and Infrastructure Project Finance Practice and chaired its Asia Practice.

Recognitions & Awards

Mr. Riedy has been recognized by Biofuels Digest as a Top 100 Bioenergy Leader in the World (#49 in 2014-2015, #56 in 2013-2014, #50 in 2012-2013 and #67 in 2011-2012). In 2012, 2013, 2014 and 2015, he was named one of "Washington, D.C. & Baltimore's Top Rated Lawyers" by Legal Leaders for Business and Commercial Law. Mr. Riedy has been AV® Preeminent™ rated by Martindale-Hubbell* for the past 18 years.

*CV, BV, and AV are registered certification marks of Reed Elsevier Properties Inc., used in accordance with the Martindale-Hubbell certification procedure's standards and policies.

Professional & Community Activities

American Council On Renewable Energy (ACORE), Founder and General Counsel

Clean Fuels Development Coalition, Founder and General Counsel

U.S.-India Business Council, Board Member Emeritus and General Counsel

U.S.-Pakistan Business Council, General Counsel

American Bar Association, Energy, Environment and Natural Resources Section, Project Finance Committee, Vice-Chair

CABLE External Advisory Board


  • Georgetown University Law Center, J.D. (1978)
  • University of Michigan, B.A. (1975)
    summa cum laude, Phi Beta Kappa, Phi Eta Sigma

Bar Admissions

  • District of Columbia


  • U.S. Court of Appeals
  • U.S. Court of Appeals for the D.C. Circuit
  • U.S. Court of Appeals for the Federal Circuit
  • U.S. District Court for the District of Columbia
  • U.S. Court of International Trade
  • U.S. Court of Federal Claims
  • U.S. Tax Court
  • District of Columbia Court of Appeals


  • U.S. Federal Power Commission — Administrative Law Judges William Jensen and David Harfeld (Jan 1979-Jan 1980)

Who We Are

Suite 900, 607 14th Street, NW
Washington, DC, 20005-2018
t +1 202.508.5823
f +1 202.318.4087

Mark J. Riedy

Experience Highlights

Development and project finance of a biomass to bio-fuel project
Representing a U.S. joint venture of a U.S. biofuels company and major U.S. independent oil corporation in the project finance of a $250 million, 50 more
Development and project finance of a woody and grass biomass-to-ethanol project
Advising a U.S. advanced biofuel company in the project financing of a woody and grass biomass-to-ethanol project that includes financing by the USDA. more
Project Development and Finance
Advising developer in all aspects of project development and finance for an innovative biomass to advanced biofuels project in North Carolina and more
Development and project finance of waste-to-biofuel project
Representing an advanced biofuels company in fats, oil, and grease municipal waste-to-biofuel project in Georgia. more