Federal Government
State Government
Tribal Nations
- Cherokee Nation
- Osage Nation
- Choctaw Nation
- Quapaw Tribe
- United Keetoowah Band
- Pawnee Nation
- Chickasaw Nation
OK Municipalities
- City of Ardmore
- City of Tulsa
- City of Broken Arrow
- City of Claremore
- City of Coweta
- City of Hominy
- City of Midwest City
- City of Oklahoma City
- City of Okmulgee
- City of Owasso
- City of Sapulpa
- City of Sand Springs
- City of Shawnee
- City of Skiatook
- City of Stillwater
- City of Tahlequah
- City of Vinita
OK Counties
- Atoka
- Bryan
- Caddo
- Carter
- Cherokee
- Choctaw
- Cimmaron
- Cotton
- Craig
- Creek
- Delaware
- Grady
- Grant
- Jefferson
- Latimer
- LeFlore
- Mayes
- McIntosh
- Nowata
- Okmulgee
- Osage
- Ottawa
- Pawnee
- Payne
- Pittsburg
- Pushmataha
- Rogers
- Sequoyah
- Washington
Circuit Engineering Districts
CED #3
Rural Water Districts
Osage County Rural Water District No. 15
Ottawa County Rural Water District No. 5
Private Clients
- John Zink Foundation
- KKT Architects
- Yoder Industrial Park
- New Life Ranch
- HNTB
- Cyntergy
- Langston University
- Bureau Veritas
- Dewberry
- Crossland Construction