The following is a partial list of companies Knox Office Realty has represented either directly or in cooperation with a national real estate firm such as CBRE, Cushman & Wakefield, Colliers, Cassidy Turley, DTZ, and JLL.
- AeroTEK
- Allstate Insurance Company
- American Diabetes Association
- AMICA Mutual Insurance
- Anderson Management Services
- Associates Housing Financing
- Auto-Owners Insurance Company
- Bankers Life and Casualty Company
- Battelle Memorial Institute
- Bechtel National
- Cardinal Health
- Diebold
- EnerNex Corporation
- Erie Indemnity Company
- East TN Human Resource Agency
- East Tennessee Natural Gas
- Elo Touch Systems
- Farmers Insurance
- GE Healthcare
- Gridiron Burgers
- Hanger Prosthetics & Orthotics
- Humana Insurance Company
- IBM
- InSource Healthcare
- Jefferson Federal Bank
- John Deere Health Care
- Liberty Mutual Insurance Co.
- Marsh USA
- Mass Mutual Life Insurance Co.
- The McGraw-Hill Companies
- MCI WorldCom
- Moore-Wallace North America
- Morgan Stanley
- Nationwide Mutual Insurance Co.
- NCS Pearson
- Parsons
- Peoples Home Equity
- PriceWaterhouseCooper
- Progressive Casualty Insurance Co.
- Prudential Insurance Co. of America
- Prudential Securities
- Rheumatology Consultants, PLLC
- Robert Half International
- Rockwell Automation
- SCOTTRADE
- Sedgwick Claims Mgmt. Services
- Sprint
- Square D
- Strayer University
- Texas Instruments
- Thomson Net Learning
- TIAA-CREF
- The Travelers Indemnity Co.
- Total Quality Logistics
- Union Planters Bank
- United Auto Credit Corp.
- Valor Healthcare
- Walgreens
- Wilbur Smith Associates
- XLHealth Corporation