Contractors & Engineering Firms
| A&P Signal | James D. Hinson Electrical Contracting Company |
| AEG Transportation Systems, Inc. | Keith & Schnarrs |
| Americna Lighting & Signalization | Kimley-Horn & Associates |
| Bukholtz Traffic Engineers | ME Hunter & Associates |
| Calmaquip Engineering Corporation | MasTec ITS |
| Control Technologies, Inc. | MB Haynes Company |
| Custom Cable Industries | McNutt Electrical Company |
| Data Technologies, Inc. | Mid-Continent Electric Company |
| Designed Traffic Installation Company | MPG & Company |
| Dyer, Riddle, Mills & Precourt, Inc. | PAH, Constructors, Inc. |
| Encompass – Watson Electric Company | Parsons Brinckerhoff |
| EPIK Communications | PB Farradyne |
| FiberTel, Inc. | PDG Contracting |
| Florida Industrial Electric, Inc. | RMK Construction Company |
| FR Aleman & Associates, Inc. | Signal Group, Inc. |
| FRH Construction Services, Inc. | T&H Electric |
| Fulcher Electric Company | Terry Jackson & Associates |
| Garney Construction | Terry Spell Mechanics |
| Grant Construction | Traffic Control Devices, Inc. |
| H & M Electric Company | Transportation Safety Contractors, Inc. |
| Highway Safety Devices, Inc. | Trico Electric |
| HNTB Corporation | United Signs & Signals |
| Hubbard Construction | Universal Cabling Systems |
| Jade Communications | Viasys – Georgia Electric Company, Inc. |
City, County and State Governments
Alabama
| Alabama Department of Transportation | Jefferson County |
| Baldwin County | Mobile County |
| Butler County | Montgomery County |
| Coffee County | Pickens County |
Florida
| Alachua County | Dixie County |
| Alachua County Board of County Commissioners | Duval County |
| Alamance County | Florida Department of Transportation Districts I, II, III, IV, V, VI, VII |
| Baker County | Florida Turnpike |
| Bay County | Gadsden County |
| Brevard County | Golden Glades |
| Broward County | Hernando County |
| City of Apalachicola | Hillsborough County |
| City of Belle Glade | Hillsborough County Public Works Department |
| City of Boca Raton | Hillsborough County Traffic Engineering |
| City of Clearwater | Indian River County |
| City of Daytona Beach | Jackson County |
| City of Deland | Jefferson County |
| City of Fort Myers | Lake County |
| City of Ft. Lauderdale | Lee County |
| City of Ft. Pierce | Leon County |
| City of Gainesville | Marion County |
| City of Homestead | Martin County |
| City of Jacksonville | Miami-Dade County |
| City of Key West | Monroe County |
| City of Lake City | Okaloosa County |
| City of Lakeland | Okeechobee County |
| City of Melbourne | Orange County |
| City of Miami | Osceola County |
| City of Naples | Palm Beach County |
| City of Ocala | Palm Beach County Board of County Commissioners |
| City of Orlando | Pinellas County |
| City of Pensacola | Polk County |
| City of Plant City | Seminole County |
| City of Sanford | Seminole County Board of County Commissioners |
| City of St. Augustine | South Florida Water Management District |
| City of St. Petersburg | St. John’s County |
| City of Stuart | St. Lucie County |
| City of Tallahassee | Taylor County |
| City of Tampa | Volusia County |
| City of Vero Beach | Walton County |
| City of West Palm Beach | Washington County |
| Collier County |
Georgia
| Bacon County | Franklin County |
| Bartow County | Fulton County |
| Bibb County | Georgia Department of Transportation |
| Bulloch County | Glynn County |
| Calhoun County | Gwinnett County |
| Catoosa County | Harris County |
| City of Atlanta | Lowndes County |
| City of Macon | Macon County |
| City of Moultrine | Madison County |
| Clay County | Marion County |
| Cobb County | Monroe County |
| Colquitt County | Polk County |
| Cook County | Quitman County |
| Decatur County | Randolph County |
| Dekalb County | Sumter County |
| Forsyth County | Tift County |
| Alamance County | Graham County |
| Alexander County | Greene County |
| Alleghany County | Guilford County |
| Anson County | Halifax County |
| Beaufort County | Harnett County |
| Bladen County | Jackson County |
| Brunswick County | Johnston County |
| Buncombe County | Lee County |
| Burke County | Lenoir County |
| Cabarrus County | Lexington County |
| Camden County | Lincoln County |
| Carteret County | Macon County |
| Chatham County | Mecklenburg County |
| Chowan County | Mitchell County |
| City of Burlington | Montgomery County |
| City of Cape Carteret | Moore County |
| City of Cape Hatteres | New Hanover County |
| City of Charlotte | North Carolina Department of Transportation |
| City of Cumberland | Onslow County |
| City of Fayetteville | Orange County |
| City of Ft. Bragg | Pitt County |
| City of Greenville | Polk County |
| City of High Point | Raleigh County |
| City of Holly Springs | Randolph County |
| City of Lenoir | Richmond County |
| City of Murdocksville | Robeson County |
| City of Rocky Mount | Rowan County |
| City of Salisbury | Rutherford County |
| City of Spencer | Salisbury County |
| City of Spring Lake | Stanley County |
| City of Taylortown | Surry County |
| City of Winston-Salem | Union County |
| Clay County | Vance County |
| Cumberland County | Wake County |
| Davidson County | Warren County |
| Durham County | Watauga County |
| Edgecombe County | Winston County |
| Forsyth County | Winston-Salem |
| Franklin County |
South Carolina
| Beaufort County | Florence County |
| Berkley County | Greenville County |
| Calhoun County | Horry County |
| Charleston County | Jasper County |
| Cheraw County | Lancaster County |
| Chesterfield County | Orangeburg County |
| City of Columbia | South Carolina Department of Transportation |
| City of Lancaster | Spartanburg County |
| City of Myrtle Beach | Sumter County |
| Colombia County | York County |
Tennessee
| City of Johnson City | Sullivan County |
| City of Nashville | Tennessee Department of Transportation |
| Davidson County | Tipton County |
| Decatur County | Washington County |
| Sevier County |
Texas
| Austin County | Harris County |
| Calhoun County | Houston County |
| City of Houston | Jasper County |
| Cooke County | Texas Department of Transportation |
| Galveston County | Travis County |
Virgina
| Augusta County | Halifax County |
| Chesapeake County | Hampton County |
| City of Chesapeake | Langcaster County |
| City of Halifax | Norfolk County |
| City of Newport News | Richmond County |
| City of Norfolk | Suffolk County |
| City of Suffolk | Virginia Beach County |
| City of Virginia Beach | Virginia Department of Transportation |
| Fairfax County | York County |
| Franklin County |