Our Mission

To build strong relationships with our clients while enhancing their lives and businesses through positive results.

Sullivan proudly Services

University and Education

  • Texas State University
  • University of Texas at San Antonio
  • Alamo Colleges
  • North East ISD
  • North Side ISD
  • San Antonio ISD
  • Navarro ISD
  • Seguin ISD
  • San Marcos ISD


  • Guadalupe Regional Medical Center
  • Wright Medical Lab and Offices
  • Quality Bioresources Inc. Labs
  • Cone Bioproducts Labs

Military and Aviation

  • Fort Sam Houston Joint Task Force Base
  • Lackland Air Force Base
  • Randolph Air Force Base
  • Fort Polk Army Base
  • Camp Mabry Joint Force Headquarters
  • Austin Bergstrom International Airport
  • New Braunfels Regional Airport

Local Municipalities

  • City of New Braunfels
  • New Braunfels Police Department
  • City of Seguin
  • Seguin Police & Fire Departments
  • Bexar County Fire and Rescue
  • City of San Antonio
  • City of Schertz
  • Cibolo Police Department
  • Guadalupe County

Corporate and Manufacturing

  • Continental Automotive
  • Caterpillar Inc.
  • H&P International Drilling
  • EOG Resources
  • Hexcel Corporation
  • CMC Steel Plant
  • Guadalupe Valley Electric Co-op (GVEC)
  • First Commercial Bank
  • Broadway Bank
  • Xerxes Corporation