| $350,000–1 million | THE OKLAHOMA PROTON CENTER, LLC | OKLAHOMA CITY, OK | Arvest Bank |
| $150,000–350,000 | THE OKLAHOMA UNITED METHODIST FOUNDATION | OKLAHOMA CITY, OK | CrossFirst Bank |
| $150,000–350,000 | THE PAINTED DESERT, INC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | THE PATHOLOGY GROUP, PC | OKLAHOMA CITY, OK | MidFirst Bank |
| $150,000–350,000 | THE PEDIATRIC GROUP, P.L.L.C. | OKLAHOMA CITY, OK | First Liberty Bank |
| $350,000–1 million | THE PERINATAL CENTER, PLLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | THE PHOENIX GROUP HOLDING CO | OKLAHOMA CITY, OK | The First State Bank |
| $2–5 million | THE PHYSICIANS GROUP LLC | OKLAHOMA CITY, OK | Arvest Bank |
| $350,000–1 million | THE REFERRAL CENTER FOR ALCOHOL AND DRUG SERVICES OF CENTRAL OKLAHOMA, INC. | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | THE REPUBLIC OF NICE, INC. | OKLAHOMA CITY, OK | INTRUST Bank, National Association |
| $150,000–350,000 | THE SAND PLUM LIMITED PARTNERSHIP | OKLAHOMA CITY, OK | MidFirst Bank |
| $150,000–350,000 | THE SHACK, LLC | OKLAHOMA CITY, OK | Legacy Bank |
| $150,000–350,000 | THE SOLAR INSTALLERS LLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | THE UPPER CRUST, LLC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | THE WOMBLE COMPANY | OKLAHOMA CITY, OK | MidFirst Bank |
| $150,000–350,000 | THIRST WINE MERCHANTS, LLC | OKLAHOMA CITY, OK | Bank of America, National Association |
| $150,000–350,000 | THOM-DOBSON-WOMACK, INC. | OKLAHOMA CITY, OK | NBC Oklahoma |
| $350,000–1 million | THRICE ENERGY SOLUTIONS LLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | THRIFTY PHARMACY CO III, INC. | OKLAHOMA CITY, OK | NBC Oklahoma |
| $150,000–350,000 | TIAMO OKLAHOMA CITY, LLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | TIETSORT LLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | TIM R. LOVE, M.D., P.C. | OKLAHOMA CITY, OK | First National Bank of Oklahoma |
| $150,000–350,000 | TIMBERCRAFT HOMES, LLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | TIMBERLAKE INTERIORS LLC | OKLAHOMA CITY, OK | MidFirst Bank |
| $350,000–1 million | TIMERLAKE CONSTRUCTION CO INC. | OKLAHOMA CITY, OK | MidFirst Bank |
| $150,000–350,000 | TIO CHUY'S AUTO FINANCE LLC | OKLAHOMA CITY, OK | Watermark Bank |
| $150,000–350,000 | TIO CHUY'S AUTO SALES, LLC. | OKLAHOMA CITY, OK | Watermark Bank |
| $350,000–1 million | TITAN CONSTRUCTION, LLC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | TJ ADMINISTRATIVE SERVICES, INC | OKLAHOMA CITY, OK | Security State Bank of Oklahoma |
| $2–5 million | TJ INSPECTIONS | OKLAHOMA CITY, OK | Security State Bank of Oklahoma |
| $150,000–350,000 | TJ INSPECTIONS TRAINING CENTERS | OKLAHOMA CITY, OK | Security State Bank of Oklahoma |
| $350,000–1 million | TKR, LLC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | TLC FLORIST & GREENHOUSES, INC. | OKLAHOMA CITY, OK | Kirkpatrick Bank |
| $150,000–350,000 | TLW TRADING LLC | OKLAHOMA CITY, OK | MidFirst Bank |
| $150,000–350,000 | TMG SERVICE COMPANY, LLC | OKLAHOMA CITY, OK | Bank 7 |
| $150,000–350,000 | TOBY CONCRETE TRANSPORTATION, INC. | OKLAHOMA CITY, OK | First United Bank and Trust Company |
| $350,000–1 million | TOM HOCH INTERIOR DESIGNS INC | OKLAHOMA CITY, OK | NBC Oklahoma |
| $150,000–350,000 | TOM KING ELECTRIC INC | OKLAHOMA CITY, OK | First-Citizens Bank & Trust Company |
| $150,000–350,000 | TOMLINSON MCKINSTRY, P.C. | OKLAHOMA CITY, OK | MidFirst Bank |
| $150,000–350,000 | TOP CLEAN INC | OKLAHOMA CITY, OK | FNB Community Bank |
| $150,000–350,000 | TOPCO DISTRIBUTORS INC | OKLAHOMA CITY, OK | First United Bank and Trust Company |
| $1–2 million | TOTAL MEDICAL PERSONNEL SERVICE LLC | OKLAHOMA CITY, OK | MidFirst Bank |
| $150,000–350,000 | TOTAL TRUCKING INC | OKLAHOMA CITY, OK | First United Bank and Trust Company |
| $150,000–350,000 | TOTALLY TICKETS INC. | OKLAHOMA CITY, OK | First Fidelity Bank |
| $150,000–350,000 | TOUCAN PRODUCTIONS, INC. | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | TP MACHINE & TOOL CO INC | OKLAHOMA CITY, OK | FNB Community Bank |
| $1–2 million | TRADE MECHANICAL CONTRACTORS, INC. | OKLAHOMA CITY, OK | FNB Community Bank |
| $1–2 million | TRAFFIC & LIGHTING SYSTEMS, LLC | OKLAHOMA CITY, OK | Kirkpatrick Bank |
| $150,000–350,000 | TRAFFIC ENGINEERING CONSULTANTS, INC. | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | TRAPPERS LIMITED PARTNERSHIP | OKLAHOMA CITY, OK | First Fidelity Bank |
| $150,000–350,000 | TRES NINOS MANAGEMENT INC | OKLAHOMA CITY, OK | Arvest Bank |
| $150,000–350,000 | TREVO LLC | OKLAHOMA CITY, OK | Great Plains National Bank |
| $350,000–1 million | TRI - POWER ENERGY SERVICES, LLC | OKLAHOMA CITY, OK | Zions Bank, A Division of |
| $350,000–1 million | TRI- STATE ELECTRICAL CONTRACTORS, LLC | OKLAHOMA CITY, OK | First National Bank and Trust Company of Weatherford |
| $150,000–350,000 | TRI-LOGIC SERVICES, LLC | OKLAHOMA CITY, OK | Fidelity Bank, National Association |
| $350,000–1 million | TRIAD DESIGN GROUP, INC. | OKLAHOMA CITY, OK | First Security Bank and Trust Company |
| $150,000–350,000 | TRIBAL DIAGNOSTICS, LLC | OKLAHOMA CITY, OK | American Bank of Commerce |
| $150,000–350,000 | TRILINK RESTORATION SERVICES, LLC | OKLAHOMA CITY, OK | The Citizens Bank of Edmond |
| $150,000–350,000 | TRINITY BRICK SALES INC. | OKLAHOMA CITY, OK | BOKF, National Association |
| $150,000–350,000 | TRIPLE C INCORPORATED | OKLAHOMA CITY, OK | Prosperity Bank |
| $150,000–350,000 | TRUCK DOCTOR INC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | TRUCK-N-TRAILER INC. | OKLAHOMA CITY, OK | Valliance Bank |
| $150,000–350,000 | TURF APPEAL INC | OKLAHOMA CITY, OK | Bank of America, National Association |
| $150,000–350,000 | TUSCANY SNF OPCO, LLC | OKLAHOMA CITY, OK | Happy State Bank |
| $150,000–350,000 | TYCOON MARINE LLC | OKLAHOMA CITY, OK | SpiritBank |
| $1–2 million | TYLER BROADCASTING CORPORATION | OKLAHOMA CITY, OK | First United Bank and Trust Company |
| $150,000–350,000 | TYLER OUTDOOR ADVERTISING, L.L.C. | OKLAHOMA CITY, OK | First United Bank and Trust Company |
| $350,000–1 million | TYLER SHEET METAL INC. | OKLAHOMA CITY, OK | Watermark Bank |
| $150,000–350,000 | U.S. MONITORING MANAGEMENT INC. | OKLAHOMA CITY, OK | Cornerstone Bank |
| $150,000–350,000 | UFD LLC | OKLAHOMA CITY, OK | Legacy Bank |
| $350,000–1 million | UGC-2 LLC | OKLAHOMA CITY, OK | Arvest Bank |
| $150,000–350,000 | UNICORN MANAGEMENT INC | OKLAHOMA CITY, OK | First Fidelity Bank |
| $150,000–350,000 | UNION MUTUAL INSURANCE COMPANY | OKLAHOMA CITY, OK | BOKF, National Association |
| $150,000–350,000 | UNION PROCESSING SYSTEMS LLC | OKLAHOMA CITY, OK | Valliance Bank |
| $150,000–350,000 | UNITED ACOUSTICS, INC. | OKLAHOMA CITY, OK | NBC Oklahoma |
| $350,000–1 million | UNITED MECHANICAL SERVICE, INC. | OKLAHOMA CITY, OK | First National Bank of Oklahoma |
| $2–5 million | UNITED MECHANICAL, INC. | OKLAHOMA CITY, OK | First National Bank of Oklahoma |
| $5–10 million | UNITED PETROLEUM TRANSPORTS, INC. | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | UNITED SYSTEMS, INC. | OKLAHOMA CITY, OK | The First National Bank and Trust Co, Chickasha, Oklahoma |
| $350,000–1 million | UNITED WAY OF CENTRAL OKLAHOMA, INC. | OKLAHOMA CITY, OK | MidFirst Bank |
| $350,000–1 million | UNIVERSAL FIDELITY LIFE INSURANCE COMPANY | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | UNIVERSAL FLUIDS, LLC | OKLAHOMA CITY, OK | Watermark Bank |
| $150,000–350,000 | UNIVERSAL REHAB SERVICES, LLC | OKLAHOMA CITY, OK | First Fidelity Bank |
| $350,000–1 million | URBAN CONTRACTORS LLC | OKLAHOMA CITY, OK | Simmons Bank |
| $150,000–350,000 | URBAN LAWN & LANDSCAPE, INC | OKLAHOMA CITY, OK | Frontier State Bank |
| $150,000–350,000 | URBAN LEAGUE OF GREATER OKLAHOMA CITY, INC. | OKLAHOMA CITY, OK | Arvest Bank |
| $350,000–1 million | UROLOGY ASSOCIATES INC | OKLAHOMA CITY, OK | NBC Oklahoma |
| $150,000–350,000 | UROLOGY SPECIALISTS OF CENTRAL OKLAHOMA, LLC | OKLAHOMA CITY, OK | NBC Oklahoma |
| $350,000–1 million | USA DIGITAL COMMUNICATIONS, INC. | OKLAHOMA CITY, OK | JPMorgan Chase Bank, National Association |
| $350,000–1 million | USA SOFTBALL, INC | OKLAHOMA CITY, OK | MidFirst Bank |
| $150,000–350,000 | UTILITY SERVICES ASSOCIATES CONSTRUCTION | OKLAHOMA CITY, OK | First Fidelity Bank |
| $150,000–350,000 | VAL GENE FOOD SERVICE INC | OKLAHOMA CITY, OK | NBC Oklahoma |
| $350,000–1 million | VALCO MANUFACTURING COMPANY INC | OKLAHOMA CITY, OK | First United Bank and Trust Company |
| $2–5 million | VALIANT ARTIFICIAL LIFT SOLUTIONS | OKLAHOMA CITY, OK | The Citizens Bank of Edmond |
| $1–2 million | VALIR HEALTH, LLC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | VALIR PACE FOUNDATION, LLC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | VAN HOOSE CONSTRUCTION CO., INC. | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | VANTAGE OPEN MRI LLC | OKLAHOMA CITY, OK | Chickasaw Community Bank |
| $150,000–350,000 | VAO SERVICE PROVIDER, LLC | OKLAHOMA CITY, OK | Liberty National Bank |
| $5–10 million | VARIETY CARE, INC | OKLAHOMA CITY, OK | Frontier State Bank |