CNG Engineering

San Antonio-based CNG Engineering, PLLC is a professional mechanical, electrical, and plumbing (MEP) design firm committed to our purpose: Engineer Exceptional & Equitable Environments for Everyone. Since 2004, we’ve delivered master planning, design, and building commissioning services for public sector clients across Texas—earning a reputation for clear, concise, and complete solutions. What drives us forward is our unwavering Attention to Detail, which has helped us build lasting relationships and a strong reputation throughout the A/E/C community. Our work is rooted in integrity, technical excellence, and a people-centered approach, because we know engineering is about more than systems; it’s about serving the communities behind them. With deep expertise in municipal, aviation, education, healthcare, and commercial office facilities, we’ve played a key role in shaping some of our community's most impactful public projects. We’re proud to design environments where people work, learn, heal, and connect—advancing our purpose through every project we touch.