CRS Engineering Inc. is a multi-discipline engineering and design-consulting firm based in Alabama. The comprehensive engineering service firm provides integrated design services in electrical, mechanical and heating, ventilation and air conditioning and plumbing engineering. It also offers specialty consulting in lighting design, fire protection, acoustics, security and telecommunication systems to the architecture and construction community. Based in Huntsville, Ala., CRS Engineering Inc. specializes in office, commercial, healthcare, houses of worship, education, student, multifamily housing, government and institutional projects.