Alterman, Inc. is one of San Antonio’s oldest and most respected electrical and voice / data communications contractors. Alterman has been an employee-owned company since 1984, attracting outstanding managers, supervisors, electricians, technicians and support personnel able to excel on projects of all sizes and complexity. Alterman provides complete installation expertise, 24/7 service, in-house design / build and Building Information Modeling (BIM) and fast-track construction for a wide range of electrical needs, as well as voice and data communications systems, video, access controls, security and surveillance systems and alternative energy solutions for LEED certification.