Steven Diamond's practice spans more than 30 years, and encompasses all facets of government contracts law, including company defense in government audits, investigations, and enforcement actions including allegations under the False Claims Act; bid protest and claims litigation; subcontracts disputes; commercial arbitration suspension and debarment proceedings; mergers and acquisitions and capital markets transactions involving government contractors; joint ventures, teaming and subcontracting; negotiating FOCI-mitigation arrangements with the Defense Security Service; representing companies in the Exon-Florio approval process before the Committee on Foreign Investment in the United States (CFIUS); FMS and FMF contracts; international and World Bank procurement matters, securing and protecting intellectual property rights and technology licensing under government contracts, and grants; and development of corporate compliance programs. He has represented US and non-US firms, from start-ups to FORTUNE 10 companies, dedicated government contractors and commercial companies, as well as US and foreign government entities.

Mr. Diamond's practice covers a broad range of industries, including aerospace and defense; professional and technical services; pharmaceuticals; biotech; healthcare; medical device and equipment; information technology; telecommunications; financial services; transportation; and consumer products. He regularly acts as lead counsel in bid protest litigation before the Government Accountability Office (GAO), the US Court of Federal Claims, and the Court of Appeals for the Federal Circuit, and in claims and False Claims Act proceedings before the boards of contract appeals and multiple federal district courts. Mr. Diamond represents strategic and financial buyers in structuring and negotiating acquisitions, mergers and divestitures involving government contractors, and capital markets transactions implicating federal government contracts and appropriations law issues. He leads internal investigations, conducts compliance reviews and counsels companies on enhancing corporate governance, risk management and corporate compliance programs. Mr. Diamond lectures at numerous companies and industry conferences on government contracting and regulatory compliance issues.


  • Lead government contracts counsel in over 150 mergers, acquisitions, divestitures and financings of government contractors spanning more than three decades.
  • Harris on government contracts and regulatory issues in its $4.4 billion acquisition of Exelis.
  • SAIC on government contracts issues in its $790 million acquisition of Sitor.
  • Armor Works in its sale to a private equity form and related bankruptcy proceedings.
  • General Atlantic Service Company, LLC and Kohlberg Kravis Roberts & Co. L.P. in their acquisition of TASC, a division of Northrop Grumman.
  • NISC, a DC Capital Company, in its sale to IBM.
  • Finmeccanica S.p.A. in its $5.2 billion acquisition of DRS Technologies, which involved sophisticated issues relating to foreign ownership in the defense and national security sectors.
  • Thomson Reuters in its acquisition of ChoicePoint assets, including contracts with law enforcement and federal government customers, including defense and intelligence agencies and foreign ownership issues.
  • DC Capital Partners in acquisitions of government contractors Athenyx, Information Manufacturing Corporation, Kaseman LLC and Sallyport.


Who's Who Legal
Government Contracts (2021)
Washington, DC Super Lawyers
Government Contracts (2013, 2017-2020)
The Legal 500 US
Government Contracts (2016-2019)


  • JD, University of Michigan Law School, 1981
  • BA, University of Michigan, 1978
  • Stanford Law School
  • District of Columbia
  • US Court of Federal Claims
  • Past Chair, International Procurement Committee, American Bar Association, International Law Section


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