Dewberry, a private professional services firm, appointed David J. Mahoney, PE, as chief executive officer effective April 1, 2026, at its Fairfax headquarters. Mahoney will also join Dewberry’s board of directors while leading the $763-million, 2,500-person organization nationwide. He takes over from Donald E. Stone, Jr., who will advise through June 30 before his planned retirement. Mahoney leads large, complex project portfolios and oversees risk management for key infrastructure sectors for the firm.
Executive Leadership Comments
Executive Chairman Barry K. Dewberry praised Mahoney’s leadership and future vision for the company.
“Dave has the right experience and energy to lead this company, now in its 70th year in business, and into the future. Our growth trajectory continues to be strong, and he has the strength of leadership and respect of our peers to deliver what the clients and communities we serve expect: strong relationships and excellent results.”
Experienced Leader for Growth
Mahoney’s leadership transformed Dewberry’s alternative project delivery group with more than 175 design-build projects exceeding $23 billion. He served as president of Dewberry’s holding company and directed risk programs affecting all business lines. Mahoney also led the transportation practice since 2017, generating more than $1.5 billion in revenue nationwide. He oversaw more than $25 billion in transportation construction for major Departments of Transportation and key authorities. He has four decades of experience, joining Dewberry in 1986 as a project engineer and rising through leadership ranks. Mahoney earned his bachelor’s degree in civil engineering from South Dakota State University in 1984.
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News Source: PRNewswire.com
