About GMC

General Mechanical Corporation (GMC) is a Native American, tribally-owned, SBA-certified 8(a), Small Disadvantaged Business owned by the Oneida Nation of Wisconsin as a subsidiary under Oneida ESC Group. We are a Florida Certified General Contractor (CGC1528897) and Mechanical Contractor (CMC1250888) specializing in the delivery of design-build construction, construction management, general contracting, mechanical contracting, and hydronic piping.

GMC has evolved over the past 24 years from a mechanical contractor to a general contracting firm completing many wide ranging, comprehensive renovation and new construction projects involving complex facilities on time and within budget. Also we currently offer construction management and design/build services to our clients throughout the State of Florida. GMC provides experience with innovative technology and energy efficient building systems design.

Our Mission/Vision

GMC shares the overall mission and vision of its parent company, Mission Support Services, which are all dedicated to customer service.


To preserve, restore, and enhance the natural and constructed environment for future generations through successful project delivery using a quality and safety driven focus for our clients and employees.


To be a nimble, high-performing, and formidable design-build and construction management services provider with a reputation for integrity and innovation serving global customer base. General Mechanical Corporation’s vision is guided through our values vested in:

  • Seeking customers who value innovative, efficient solutions while recognizing integrity and quality
  • Attracting and retaining people who evaluate collaboration and diversity, with a common goal of superior performance within a safe environment
  • Growth by providing value to our customers and shareholders, and offering exceptional opportunities for our people