HESM&A-Salas O'Brien have combined footprint of 13 offices across the United States and have over 230 professionals and more than 60 registered professionals. Salas O'Brien is a leading ENR 500 national facilities design firm with a focus on critical environments including Telecommunications, Data Centers and Hospitals, Higher Education, Government, K-12, Clean Energy, Building Systems/Controls, Retail and Commercial facilities.HESM&A-Salas O'Brien was founded in 1989 and located in Atlanta, Georgia. We pride ourselves in energetically exceeding our clients' expectations by coordinating our talents and areas of expertise. This unique synergy motivates and empowers our staff thereby promoting creativity and precision, two essential qualities of a successful design.HESM&A-Salas O'Brien provides, Mechanical, Electrical, Plumbing and Fire Protection services for commercial projects and have completed projects of all sizes across every market sector.Areas of expertise include - Engineering Design with Professional Engineers licensed in most statesSustainable Design for LEED Certification Commissioning services provided on millions of square feet Energy Star CertificationExpert Testimony