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Claire Rajan


Washington, D.C.

Image of Claire Rajan
Claire Rajan


Washington, D.C.

Claire’s cross-border practice includes representing multinational corporate clients in investigations. Her primary focus is on anti-corruption laws, including the Foreign Corrupt Practices Act (FCPA) and political laws, which regulate how companies engage with government entities.

Claire’s experience includes cross-border litigation, federal and state government investigations, internal investigations, transactional due diligence, and compliance risk assessments. Claire represents clients across various sectors, including technology, media, oil & gas, mining, renewables, engineering, financial services (banks, private equity, and asset managers), and consumer goods.

Claire’s investigations practice includes government-facing and internal investigations relating to corruption, fraud, sanctions, and anti-competitive behavior. She also represents clients in World Bank investigations.

Claire has extensive experience evaluating and enhancing corporate compliance programs, including advising clients during and after FCPA investigations to remediate and comply with self-reporting obligations regarding development of the compliance program. She also has in-house experience from multiple secondments to major global financial services providers.

Claire leads A&O’s Political Law Group, which advises multinational corporations and financial institutions on federal, state, and local regulations on campaign finance, pay-to-play, electoral engagement, lobbying, ethics, conflicts of interest, and gifts to public officials.

Claire has been recognized by Chambers USA from 2017 through 2021, noting that Claire “is deeply experienced in political law enforcement and litigation.” According to Chambers, “clients praise her ‘incredible judgment,’” explaining “she is very fast to . . . zero-in on the most important aspects of a legal issue. She has a very sensible approach towards finding practical solutions.”

Prior to joining Allen & Overy, Claire worked as a litigation attorney for the Federal Election Commission (FEC) and served as counsel to Commissioner Ellen L. Weintraub. Her FEC litigation experience includes matters at the United States Supreme Court, as well as various federal circuit and district courts throughout the United States.

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Washington, D.C.

1101 New York Avenue, NW
Washington, D.C.

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Admitted: Bar of the United States Supreme Court, 2021

Admitted: Bar of the District of Columbia, 2012

Admitted: Bar of the State of California, 2005

Admitted: U.S. Court of Appeals

Second Circuit, 2015

Fourth Circuit, 2008

Fifth Circuit, 2010

Ninth Circuit, 2009


J.D., American University Washington College of Law, 2005

B.A., University of California at Los Angeles, 2001

Pro bono

  • Filed an amicus brief in the U.S. Supreme Court on behalf of The Brennan Center for Justice relating to a campaign finance provision that restricts a candidate’s ability to repay loans to oneself post-election.
  • Drafted an amicus brief in the Eleventh Circuit on behalf of the National Women’s Law Center to oppose Alabama’s policy regarding transgender people listing accurate gender markers on driver’s licenses.
  • Drafted a “Know Your Rights Guide” for the Committee to Protect Journalists on First and Fourth amendment rights for journalists covering protests in the U.S., which has been shared by the White House Correspondents Association and is sent to newsrooms across the country in advance of protests.


Published work