• - About Us -


    Thomasson Commissioning Services, LLC is an employee-owned firm providing commissioning of HVAC/mechanical, electrical, lighting, plumbing, fire protection, and telecommunication systems. We are a member of the AABC Commissioning Group (ACG) and specialize in LEED® Fundamental and Enhanced Commissioning. Our professionals hold LEED® Accreditations and ACG Certifications.


    We are committed to providing competitively priced, timely and quality commissioning services in a professional manner that exceeds our client’s expectations. Each team member has the experience to perform the assigned tasks and the empowerment to make the decisions necessary to fulfill the firm’s obligations.


    The capabilities of TCS are exemplified in the diversity of our completed commissioning projects. The TCS staff has commissioned systems in the healthcare, commercial, institutional and federal markets. The TCS commissioning professionals are professional engineers involved in the planning, design, construction, and operational phases.


    TCS commissions projects throughout the United States for healthcare, commercial, hospitality, recreation, education, institutional, and industrial clients. We’re proud that most of our clients are repeat clients. We’re proud of our contributions and value our mutually beneficial relationships. We strive to be recognized as an integral member of our client’s team and an extension of their staff. We also welcome the opportunity to foster relationships with new clients.

  • - Featured Projects -

    Bridgestone Americas Headquarters

    Nashville, TN

    LEED Enhanced Commissioning for a 32-story, 514,000 SF Class-A Office high rise in the heart of downtown Nashville.

    JW Marriott

    Nashville, TN

    Enhanced commissioning of an 810,000 SF downtown hotel with 34 floors with 533 keyed guest suites, multiple restaurants, and several large formal ballrooms.

    Schermerhorn Symphony Center

    Nashville, TN

    Retro-commissioning services for this four-story, 197,000 SF world-class concert hall. The venue featured a 1,900-seat concert hall, house rehearsal spaces, meeting rooms, and educational classrooms.

    Vanderbilt University Eskind Biomedical Library

    Nashville, TN

    LEED Enhanced Commissioning for a 71,000 SF biomedical library located on the campus of Vanderbilt University.

    The Place at 5th and Broad

    Nashville, TN

    Fundamental commissioning for the 680,000SF, 34-story, five-star luxury residences in downtown Nashville.

    Asurion Headquarters

    Nashville, TN

    LEED Enhanced Commissioning for the 550,000 SF Class-A office space located in the Gulch neighborhood of downtown Nashville.

    GE Aviation

    Auburn, AL

    LEED Enhanced Commissioning services for a 300,000 SF advanced manufacturing plant that produces precision, super-alloy machined parts for GE jet engines.

    NASA Building 4221

    Redstone Arsenal, AL

    Commissioning services and authority for the 140,000 SF, five-story office building located on the Redstone Arsenal base.

    Fort Jackson ECIP

    Fort Jackson, SC

    Mechanical and electrical commissioning for energy conservation to four Central/District Energy Plants at Fort Jackson.

  • - Services -


    Fundamental & Enhanced Commissioning

    ACG Certified​

    Commissioning Authority

    ​Independent Third Party Commissions

    Facility Infrastructure Assessment