American Electric Power Co

(918) 599-2441

Bardyne Inc

(405) 743-0700

Best Inc

(405) 325-1714

Ces Inc

(918) 967-9975

Frankfurt Short Bruza Associate

(405) 840-2931

Frankfurt WM W Engr

(405) 840-2931

Frontier Electronic Systems Corporation

(405) 624-1769

FSB

(405) 840-2931

George Dunlap

(405) 840-2931

Glenn Short

(405) 840-2931

Greenwood Technical Service

(405) 321-8374

Hays Engineering & MFG Inc - James Hays Pe

(918) 355-9137

Hebco Inc

(405) 672-1461

Helt Mechanical

(918) 215-2552

Jim Bruza

(405) 840-2931

Mark Hanson

(918) 493-5000

Mark Timbrook

(405) 840-2931

Michael Holland

(405) 752-5371

Michael Stalzer Pe

(405) 377-9100

MPW Engineering LLC

(918) 582-4088

Oklahoma Gas & Electric Co

(405) 553-3238

Petroleum Chemical Development Corporation

(918) 250-5107

Randall Engineering

(918) 366-7400

Robert Erdman Jr

(405) 840-2931

TCM Certification Service

(918) 371-8812
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