RTM Expands Northwest Arkansas Presence with Addition of Principal David Leiffer
RTM Expands Northwest Arkansas Presence with Addition of Principal David Leiffer July 23, 2026 – BENTONVILLE, Ark. – RTM Engineering Consultants, a nationally recognized MEP, Civil, and Structural engineering consulting firm, announced that David Leiffer, PE, P.Eng., LEED AP joined the firm as Principal to support strategic growth initiatives and lead the expansion of…