Philip Croessmann

Philip Croessmann

Westberg Croessmann &
Warren, PC

Arlington, VA

  • user-graduate Education Syracuse University College of Law
  • Experience 41 years of experience year
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Practice Areas

Arbitration & Mediation
Construction Law
Environmental Law
Insurance Claims
Real Estate Law
Arbitration & Mediation

Jurisdictions Admitted to Practice

  • District of Columbia
    Since 1982


Mr. Croessmann represents numerous architectural and engineering firms, environmental consultants, insurance companies and contractors in both simple and complex litigation. He is also involved in providing a wide range of services that are tailored to the construction industry. The services include contract negotiation, government contracting, business planning, risk management, ownership transition, and mergers and acquisitions. Further, Mr. Croessmann has been heavily involved in litigating insurance coverage disputes involving Superfund, environmental claims and construction defects. In addition to his legal practice, Mr. Croessmann co-founded the Matrix Design Companies where he currently serves as president of Matrix IMA an architectural firm specializing in forensic, litigation support and expert witness services and as a principal/general counsel of the Matrix Design Companies. Previously, Mr. Croessmann also served as a lobbyist and deputy general counsel for the American Institute of Architects in Washington, D.C. Mr. Croessmann is also active in industry associations. He is a member American Institute of Architects and was on the Board of Directors and the 2004 President of the Northern Virginia Chapter of the AIA. He is active in the Associated Builders and Contractors of Virginia and the American Bar Association's Construction Fourm. He has also served as an arbitrator for the American Arbitration Association and is actively involved in alternative dispute resolutionRepresentative Cases:1. Negotiated a Construction Management at Risk contract with a public agency for construction of a 100 million dollar Water Treatment Plant in Florida.2. Prepared and assisted in negotiating several claims and change orders under a design build contract on an 87 million dollar modernization of a waste water treatment plant in Tacoma Washington.3. Drafted and pursued a delay and inefficiency claim against the Maryland State Transportation Authority.4. Defended an architect in a claim involving the observation tower on the Woodrow Wilson Bridge in Washington D.C.5. Defended a structural engineer in a claim by the Argentine Navy for settlement damage caused by sheeting and shoring system in Washington D.C.6. Successfully defended a Securities Fraud case in U.S. District Court and the subsequent appeal in the U.S. Court of Appeal.

Professional Associations

  • Washington State Bar # 16896
    1987 - Current


  • University of Oregon
    B. Arch | Architecture
    1976 - 1981


  • Expert Witnesses: Construction Cases, 2009 ed.
    Thompson West
    July, 2009