Established in 1972, Rowan Williams Davies & Irwin Inc. (RWDI) is recognized internationally as a leading specialty consulting engineering firm.  This unique company with over 400 employees has established a worldwide clientele that seeks its expertise for solving architectural, engineering and industrial / environmental technical problems.
RWDI is the leading wind engineering consulting services firm in the world.  As such, the company offers a complete range of wind engineering, environmental air quality and noise management services.
Our sister company, Motioneering Inc., develops conceptual designs and undertakes the detailed design of special damping devices to suppress wind-induced vibrations.
The firm's facilities include two boundary layer wind tunnels, an open channel water flume, and advanced computer modeling capabilities including computational fluid dynamics (CFD). RWDI also has an in-house model shop that uses stereolithography technology, integrated data acquisition, storage and processing systems, computer-aided drafting, and a broad base of specialized instrumentation.  Offices in other locations extend RWDI's reach to regional client bases.
The staff is a comprehensive blend of senior scientists, engineers, specialists, meteorologists, engineering technologists and modelers, technicians and support staff.  The firm's key clients include leading architectural, mechanical and structural engineering firms, plus private and public facility owners.  RWDI also offers advanced air quality, noise and hazard / risk modeling, monitoring, and measurement expertise to industry and government clients.