Established in 2004 by Travis E. Wiltshire, PE, CNG Engineering, PLLC (CNG) is a professional Mechanical, Electrical and Plumbing engineering design and planning firm based in San Antonio, Texas. For ten years, CNG has provided superior designs that are clear, concise and complete to continuously exceed the client and end users’ expectations. Our commitment to paying Attention to Detail has enabled CNG to build a solid reputation with architects, owners, developers, contractors and peers in the engineering community as an MEP design firm with demonstrated proficiency in the design and planning of municipal, higher education, health care, federal and commercial facilities.