The ARCH Professional Group, Inc., founded in 1998 and formerly known as CDA Associates, is a privately-held architectural design firm, incorporated in Boston, MA, specializing in residential, commercial, educational and institutional projects. The ARCH Professional Group provides full-service project and construction management, architectural design, engineering, cost estimating, and construction document review services in collaboration with a team of landscape architects, civil, electrical, mechanical, structural, fire protection, and geo-technical engineering consultants.