Office U.S. District Court · D.C. Court of Appeals · Federal Agencies
Greg ThompsonAttorney · Washington, DC
Biography

Counsel of conviction. Advocacy of distinction.

Greg Thompson is a Washington, DC-based attorney with a decade of practice before the U.S. District Court for the District of Columbia, the D.C. Court of Appeals and federal agencies. The firm represents corporations, public figures and private clients in matters that demand both technical mastery and steady courtcraft.

A native of the D.C. metropolitan area, Greg carries forward a family tradition of public service. His decision to read law was shaped by the constitutional guarantees that protect citizens against the asymmetries of power — a conviction that continues to anchor the firm's preference for hard-won justice over easy settlement, and for honest counsel over comfortable advice.

The practice is anchored in two flagship areas. Mining law, where he advises operators, investors and landowners on leases, royalty disputes, environmental clearances and proceedings before federal agencies. And criminal defence, where he appears in matters of bail, pre-trial release, trial advocacy, white-collar offences, RICO proceedings and FBI / DOJ investigations — handled with the discretion sensitive briefs require.

While the office is rooted in Washington, DC, Greg regularly appears before federal and state courts in Maryland, Virginia and throughout the mid-Atlantic region — particularly in mining, criminal and matrimonial matters that travel outside the District. The firm maintains long-standing local-counsel relationships throughout the region to ensure clients receive seamless representation wherever the brief takes them.

Beyond litigation, the firm maintains a robust civil and commercial advisory practice — drafting and negotiating contracts, structuring estate plans, and acting as mediator in family and business disputes. A meaningful share of the firm's calendar is dedicated to pro-bono representation for matters of genuine need.

A commitment to public welfare runs in the family. The Thompson family has a long history of community involvement in the D.C. area — supporting educational, religious and civic institutions — a legacy of service that continues to inform the firm's ethic. Greg is an active member of the District of Columbia Bar and a contributing member of the American Bar Association, where he engages with the wider community on questions of law, education and civic life.

Drawing on a wide professional network across the nation's institutional, political and regulatory corridors, Greg Thompson is well placed to navigate complex regulatory mandates and high-profile briefs with the discretion they demand. The firm's reputation rests on three habits — preparation that is exhaustive, advice that is honest, and representation that is personal.

  • 01IntegrityHonest counsel, even when it is the harder advice to give.
  • 02DiligenceBrief preparation that is exhaustive, evidence that is meticulous.
  • 03DiscretionStrict confidentiality across every engagement.
  • 04AccessPro-bono support for qualifying matters of justice.
By the Numbers

A decade of consequential practice.

  • 10+Years of Experience
  • 400+Court Appearances
  • 250+Matters Handled
  • 100+Estate Plans Drafted
Memberships & Affiliations

Bar admissions, court rolls and professional associations.

  1. Bar Admission

    District of Columbia Bar

    Active member in good standing, with full rights of practice before all courts in the District of Columbia.

  2. Federal Courts

    U.S. District Court (D.C.)

    Admitted to practice before the U.S. District Court for the District of Columbia.

  3. Appellate

    D.C. Court of Appeals

    Admitted to practice before the District of Columbia Court of Appeals.

  4. Bar Association

    American Bar Association

    Active member of the American Bar Association — contributing to sections on mining law, criminal justice and dispute resolution.

  5. State Courts

    Maryland & Virginia Bars

    Licensed to practice in the state courts of Maryland and Virginia — appearing in civil, criminal and family matters.

  6. Federal Agencies

    Federal Regulatory Bodies

    Regular practice before the Bureau of Land Management, EPA, NLRB and other federal agencies for mining, environmental and labour matters.

Offices & Correspondence

Two addresses. One chamber.

The office is located at 1638 R Street NW, Suite 312, Washington, DC 20009. Correspondence may be directed to the email below.

Office

1638 R Street NW, Suite 312

Washington, DC 20009.

Office for documentation, conferences and consultations by appointment.

Courts

U.S. District Court (D.C.)

333 Constitution Ave NW,
Washington, DC.

Federal court appearances for civil, criminal and regulatory matters.

Get in Touch

Speak with the Chamber.

For consultations, second opinions or urgent assistance, the chamber welcomes enquiries by phone, email or our secure form. Conversations are confidential.

Request Consultation+1 (202) 555-0147