| $150,000–350,000 | AAE ELECTRIC INC | STILLWATER, OK | BancFirst |
| $350,000–1 million | ACCURATE ENVIRONMENTAL LLC | STILLWATER, OK | Simmons Bank |
| $150,000–350,000 | ADVANTAGE PLUMBING HEATING AND COOLING, LLC | STILLWATER, OK | Bankers' Bank of Kansas |
| $150,000–350,000 | ARZON DEVELOPMENT COMPANY, LLC | STILLWATER, OK | BOKF, National Association |
| $350,000–1 million | B&L HEATING AND AIR CONDITIONING INC | STILLWATER, OK | Simmons Bank |
| $150,000–350,000 | BJ PRINTING, INC | STILLWATER, OK | Exchange Bank and Trust Company |
| $150,000–350,000 | C & C COMMERCIAL CLEANING CO. | STILLWATER, OK | The Bank National Association |
| $350,000–1 million | C STAR MANAGEMENT, LLC | STILLWATER, OK | BancFirst |
| $350,000–1 million | COCKRELL EYECARE CENTER, INC | STILLWATER, OK | BancFirst |
| $150,000–350,000 | CORNERSTONE FAMILY DENTISTRY | STILLWATER, OK | Security Bank |
| $150,000–350,000 | CREDIT BUREAU SERVICES ASSOCIATION | STILLWATER, OK | Simmons Bank |
| $150,000–350,000 | D & D FOODSERVICE, INC. | STILLWATER, OK | Exchange Bank and Trust Company |
| $150,000–350,000 | DIRECT DISCOUNT TIRE OF STILLWATER LLC | STILLWATER, OK | Simmons Bank |
| $150,000–350,000 | DUPREE SPORTS EQUIPMENT CO., INC | STILLWATER, OK | BancFirst |
| $350,000–1 million | ESKIMO JOE'S | STILLWATER, OK | Simmons Bank |
| $150,000–350,000 | ESKIMO JOE'S CLOTHES, INC. | STILLWATER, OK | Simmons Bank |
| $350,000–1 million | ESKIMO JOE'S INC | STILLWATER, OK | Simmons Bank |
| $150,000–350,000 | FOOT BY FOOT, LLC | STILLWATER, OK | Exchange Bank and Trust Company |
| $150,000–350,000 | FSW&B CPA'S PLLC | STILLWATER, OK | The Bank National Association |
| $150,000–350,000 | FURNITURE SHOWCASE, INC | STILLWATER, OK | BancFirst |
| $150,000–350,000 | G & M BODY SHOP WEST INC | STILLWATER, OK | Simmons Bank |
| $150,000–350,000 | G. & M. BODY SHOP, INC. | STILLWATER, OK | Simmons Bank |
| $150,000–350,000 | GOLDEN OAKS VILLAGE OF STILLWATER LLC | STILLWATER, OK | Exchange Bank and Trust Company |
| $150,000–350,000 | GRIMSLEYS INC | STILLWATER, OK | Simmons Bank |
| $150,000–350,000 | HAMPTON INN & SUITES | STILLWATER, OK | BancFirst |
| $350,000–1 million | HH STAFFING LLC | STILLWATER, OK | The Bank National Association |
| $350,000–1 million | JANZEN AUTOMOTIVE GROUP INC | STILLWATER, OK | BancFirst |
| $150,000–350,000 | KERNS CONSTRUCTION, INC. | STILLWATER, OK | BancFirst |
| $150,000–350,000 | KEYSTONE ENGINEERING AND LAND SURVEYING, INC. | STILLWATER, OK | BancFirst |
| $350,000–1 million | KINNUNEN SALES & RENTAL INC | STILLWATER, OK | Simmons Bank |
| $150,000–350,000 | LAMBERT CONSTRUCTION COMPANY | STILLWATER, OK | Simmons Bank |
| $150,000–350,000 | LEAD TRAINING, LLC | STILLWATER, OK | Exchange Bank and Trust Company |
| $150,000–350,000 | LEGACY DRILLING, LLC | STILLWATER, OK | Valliance Bank |
| $150,000–350,000 | LOUIE'S-STILLWATER, LLC | STILLWATER, OK | BancFirst |
| $350,000–1 million | M&N DEALERSHIPS IV, LLC | STILLWATER, OK | International Bank of Commerce |
| $150,000–350,000 | M&N DEALERSHIPS VI, LLC | STILLWATER, OK | International Bank of Commerce |
| $150,000–350,000 | MAIN AUTOMOTIVE SUPPLY, INC | STILLWATER, OK | Blue Sky Bank |
| $150,000–350,000 | MEXICO JOE'S, INC. | STILLWATER, OK | Simmons Bank |
| $350,000–1 million | MORTON CONSTRUCTION INC. | STILLWATER, OK | First Bank and Trust Co |
| $150,000–350,000 | MPOWER INC | STILLWATER, OK | Simmons Bank |
| $350,000–1 million | NATIONAL STUDENT SERVICES, INC. | STILLWATER, OK | Simmons Bank |
| $150,000–350,000 | NORTH CENTRAL CONSTRUCTION COM | STILLWATER, OK | BancFirst |
| $150,000–350,000 | OKLAHOMA ABSTRACT AND TITLE COMPANY | STILLWATER, OK | Simmons Bank |
| $150,000–350,000 | OKLAHOMA STATE UNIVERSITY ALUMNI ASSOCIATION | STILLWATER, OK | Simmons Bank |
| $150,000–350,000 | OSU COWBOY GOLF, LLC | STILLWATER, OK | Simmons Bank |
| $150,000–350,000 | PAYNE COUNTY YOUTH SERVIES, INC. | STILLWATER, OK | Simmons Bank |
| $150,000–350,000 | PFEIFFER COMPANIES LLC | STILLWATER, OK | First Bank & Trust Company |
| $150,000–350,000 | PLATINUM ARCH MANUFACTURING AND CONSTRUCTION LLC | STILLWATER, OK | Exchange Bank and Trust Company |
| $150,000–350,000 | PROFESSIONAL VALUE INTERNET SERVICES, INC | STILLWATER, OK | BancFirst |
| $150,000–350,000 | PROMAC SERVICES, LLC | STILLWATER, OK | Arvest Bank |
| $150,000–350,000 | REN TESTING CORPORATION | STILLWATER, OK | BOKF, National Association |
| $150,000–350,000 | RENAISSANCE KIDS INC. | STILLWATER, OK | BancFirst |
| $150,000–350,000 | RENKIDS, L.L.C | STILLWATER, OK | BancFirst |
| $150,000–350,000 | REPRODUCTION ENTERPRISES, INC. | STILLWATER, OK | BancFirst |
| $150,000–350,000 | RPX TECHNOLOGIES, INC. | STILLWATER, OK | BancFirst |
| $350,000–1 million | RRY SERVICES, LLC | STILLWATER, OK | The Payne County Bank |
| $2–5 million | SANGRE HOLDINGS LLC | STILLWATER, OK | BancFirst |
| $150,000–350,000 | SG AMMO LLC | STILLWATER, OK | BancFirst |
| $150,000–350,000 | SIGNATURE LLC | STILLWATER, OK | BancFirst |
| $150,000–350,000 | SPECIAL ENERGY CORPORATION | STILLWATER, OK | BancFirst |
| $150,000–350,000 | STAN CLARK COMPANIES, INC. | STILLWATER, OK | Simmons Bank |
| $150,000–350,000 | STEWART STONE, INC. | STILLWATER, OK | First Bank & Trust Company |
| $150,000–350,000 | STILLWATER ** THE FIRST UNITED METHODIST CHURCH OF STILLWATE | STILLWATER, OK | RCB Bank |
| $150,000–350,000 | STILLWATER BUILDING CENTER, INC. | STILLWATER, OK | Simmons Bank |
| $2–5 million | STILLWATER DESIGNS & AUTIO, IN | STILLWATER, OK | BancFirst |
| $150,000–350,000 | STILLWATER DOMESTIC VIOLENCE SERVICES, INC. | STILLWATER, OK | Simmons Bank |
| $350,000–1 million | STILLWATER GROUP HOMES INC | STILLWATER, OK | Simmons Bank |
| $1–2 million | STILLWATER MILLING COMPANY, LLC | STILLWATER, OK | Simmons Bank |
| $150,000–350,000 | STILLWATER RETIREMENT, LLC | STILLWATER, OK | Dacotah Bank |
| $150,000–350,000 | STILLWATER STEEL & SUPPLY LLC | STILLWATER, OK | Grand Savings Bank |
| $150,000–350,000 | STILLWATER WINGS, LLC | STILLWATER, OK | RCB Bank |
| $350,000–1 million | STOVER & ASSOCIATES, INC | STILLWATER, OK | BancFirst |
| $150,000–350,000 | SUNNYBROOK CHRISTIAN CHURCH, INC | STILLWATER, OK | BancFirst |
| $150,000–350,000 | TAVERN VENTURES STILLWATER L.L.C. | STILLWATER, OK | First National Bank of Oklahoma |
| $150,000–350,000 | TEL FOUNDATION | STILLWATER, OK | Great Plains National Bank |
| $350,000–1 million | TERRITORY RESOURCES, LLC | STILLWATER, OK | BOKF, National Association |
| $150,000–350,000 | THE HIDEAWAY | STILLWATER, OK | BancFirst |
| $350,000–1 million | THE RAILROAD YARD, INC. | STILLWATER, OK | The Payne County Bank |
| $150,000–350,000 | THE SHUTTER MILL, INC. | STILLWATER, OK | Blue Sky Bank |
| $150,000–350,000 | TOP HAND FIELD SERVICES, LLC | STILLWATER, OK | Exchange Bank and Trust Company |
| $350,000–1 million | UNIVERSAL SURVEYING AND MAPPING, LLC | STILLWATER, OK | BancFirst |
| $150,000–350,000 | VILLASENORSTILL LLC | STILLWATER, OK | BancFirst |
| $350,000–1 million | WILSON CHEVROLET, INC. | STILLWATER, OK | Arvest Bank |
| $150,000–350,000 | YAMAHA OF STILLWATER, LLC | STILLWATER, OK | Exchange Bank and Trust Company |