Firm History

San Antonio-based CNG Engineering, PLLC (CNG) is a professional mechanical, electrical, and plumbing engineering design firm that provides master planning, design, and building commissioning services for public sector projects across Texas. Since 2004, CNG has provided superior designs that are clear, concise, and complete to exceed the client and end users’ expectations continuously. Our commitment to paying Attention to Detail has enabled CNG to build a solid reputation in the A/E/C community as an MEP design firm with demonstrated proficiency in the design and planning of municipal, aviation, education, health care, and commercial office facilities.

  • Core Values

    Since our foundation in  2004, CNG Engineering has been governed by our core values. Our Values shape our culture and define the character of our company. They guide how we behave and make decisions.

  • Awards

    University of Texas System Administration Replacement Office Building

    • 2018 University of Texas System HUB Awards Certificate of Excellence for Outstanding Achievement in Construction

    University of Texas System / Rio Grande Valley School of Medicine Institute Of Neuroscience

    • 2023 University of Texas System HUB Awards Outstanding HUB Subcontractor

    68th Annual San Antonio NAACP Freedom Fund Dinner

    • 2017 City of San Antonio Transportation and Capital Improvements “Designer of the Year” for Mechanical and Electrical Projects

    Main Building Restoration  at Our Lady of the Lake University

    • 2014 AIA San Antonio Chapter Mayor's Choice Award
    • 2012 National Trust for Historic Preservations' Preservation Honor Award
    • 2011 San Antonio Conservation Society Award
    • 2011 Associated Builders and Contractors Excellence in Construction
    • 2010 San Antonio Business Journal's Best in Commercial Real Estate: Wild Card - Overcoming Adversity

    Alamo Beer Brewery

    • 2015 AIA San Antonio Chapter Honor Award

    Austin-Bergstrom International Airport Consolidated Rental Car Facility

    • 2016 Austin Business Journal Commercial Real Estate Awards: Industrial Development

    Combined Center for Health Professions, Learning Resources and Student Welcome Center

    • 2010 TASA / TASB Award

    Café College

    • 2011 AIA San Antonio Chapter Mayor’s Choice Design Award
    • 2011 Downtown Alliance, Best Educational Facility

    Casa Navarro State Historic Site

    • 2012 San Antonio Conservation Society Award

    Casis Elementary School

    • 2023  Texas Association of School Administrators / Texas Association of School Board Caudill Class Award

    Cedar Elm STEM Building

    • 2022  AIA San Antonio Chapter Education Award

    Confluence Park

    • 2023 AIA Committee on the Environment Top Ten Project Award
    • 2022 Metropolis Planet Positive Award Honoree
    • 2020 Chicago Athenaeum American Architecture Award
    • 2019 AIA Institute Honor Award for Architecture
    • 2019 Texas Architect Design Award
    • 2019 Texas ASLA Award of Excellence
    • 2018 AIA San Antonio Honor Award
    • 2018 Architizer A+Awards - Pavilion Category Jury Award
    • 2018 ABC Central Texas Excellence in Construction Award
    • 2016  Texas Architects Studio Award
    • 2016 Texas Society of Architects Studio Award - Unbuilt Category

    Jingu House at Japanese Tea Gardens

    • 2012 San Antonio Conservation Society Award

    Hemisfair Park  - Yanaguana Garden

    • 2019 Texas ASLA Honor  Award

    Mission Branch Library

    • 2016 AIA San Antonio Chapter Honor Award
    • 2015 AIA / ALA Library Building Award
    • 2022 AIA San Antonio Chapter Mayor’s Choice Design Award

    Mission Drive-In Marquee

    • 2016 San Antonio Conservation Society Award

    Public Safety Headquarters

    • 2013 AIA San Antonio Chapter Mayor’s Choice Design Award

    Port San Antonio Building 43 (ACS Call Center)

    • 2010 San Antonio Business Journal's Best in Commercial Real Estate Best Rehab Project

    Robert B. Green Campus Clinical Pavilion

    • 2012 Downtown Alliance, Best Work in Progress, Downtown's Best Awards

    Rosedale School

    2023 AIA Austin AIA Austin Design Award Commendation for Humancentric Design Downtown Alliance

    San Antonio Riverwalk Capital Improvements

    • 2018 San Antonio Conservation Society Award
    • 2014 Downtown Alliance, Best Development / Construction Project, Downtown's Best Awards (Phases 1-3)

    San Antonio Riverwalk Capital Improvements - Master Plan

    • 2010 Downtown Alliance, Best Public Improvement Project Work in Progress, Downtown's Best Awards

    Walker Ranch Senior Center

    2022 AIA San Antonio People and Places Mayor's Choice Award

  • Certifications

    State of Texas

    • Historically Underutilized Business

    North Central Texas Regional Certification Agency

    • Minority Business Enterprise

    South Central Texas Regional Certification Agency

    • Small Business Enterprise
    • Minority Business Enterprise
    • African American Business Enterprise
    • Airport Concessionaire Disadvantaged Business Enterprise
    • Disadvantaged Business Enterprise

    City of Austin

    • Minority-Owned Business Enterprise

    Texas Department of Transportation

    • Small Business Enterprise

    Metropolitan Transit Authority of Harris County

    Small Business EnterpriseCertifications

    State of Texas

    • Historically Underutilized Business

    North Central Texas Regional Certification Agency

    • Minority Business Enterprise

    South Central Texas Regional Certification Agency

    • Small Business Enterprise
    • Minority Business Enterprise
    • African American Business Enterprise
    • Airport Concessionaire Disadvantaged Business Enterprise
    • Disadvantaged Business Enterprise

    City of Austin

    • Minority-Owned Business Enterprise

    Texas Department of Transportation

    • Small Business Enterprise

    Metropolitan Transit Authority of Harris County

    Small Business Enterprise

SAN ANTONIO

8302 Broadway

San Antonio, Texas 78209

P   210.224.8841 | F   210.224.8824