| $150,000–350,000 | DOUBLE LIFE CORPORATION INC. | OKLAHOMA CITY, OK | First Bethany Bank & Trust |
| $2–5 million | DOVE SCHOOLS INC. | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | DOW AERO LOGISTICS, LLC | OKLAHOMA CITY, OK | Prosperity Bank |
| $350,000–1 million | DOWNEY CONTRACTING, LLC | OKLAHOMA CITY, OK | The First State Bank |
| $350,000–1 million | DOWNTOWN GLASS | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | DOWNTOWN TIRE & AUTO SERVICES, INC. | OKLAHOMA CITY, OK | Chickasaw Community Bank |
| $150,000–350,000 | DPM GROUP | OKLAHOMA CITY, OK | Legacy Bank |
| $350,000–1 million | DRABEK & HILL, INC. | OKLAHOMA CITY, OK | Simmons Bank |
| $150,000–350,000 | DRAFT2DIGITAL, LLC | OKLAHOMA CITY, OK | Fidelity Bank, National Association |
| $150,000–350,000 | DRAGONFLY ENERGY, INC. | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | DRAPERY MANUFACTURING, INC. | OKLAHOMA CITY, OK | UMB Bank, National Association |
| $150,000–350,000 | DREXEL AUTO PAINT & BODY REPAIR LLC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | DRILLWORX DIRECTIONAL DRILLING, LLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | DRO, LLC | OKLAHOMA CITY, OK | Arvest Bank |
| $150,000–350,000 | DRS. FUNNELL AND STREBEL, INC. | OKLAHOMA CITY, OK | First National Bank of Oklahoma |
| $150,000–350,000 | DUB ROSS CO INC | OKLAHOMA CITY, OK | First Bethany Bank & Trust |
| $350,000–1 million | DUDLEY LAND COMPANY | OKLAHOMA CITY, OK | MidFirst Bank |
| $350,000–1 million | DUNLAP CODDING, P.C. | OKLAHOMA CITY, OK | Simmons Bank |
| $350,000–1 million | DURBIN LARIMORE & BIALICK, PC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | DUTCHER & COMPANY, INC. | OKLAHOMA CITY, OK | Arvest Bank |
| $150,000–350,000 | DYNAMIC GAMING SOLUTIONS, LLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | E. B. ARCHBALD & ASSOCIATES, INC. | OKLAHOMA CITY, OK | RCB Bank |
| $1–2 million | ECHO ENERGY, LLC | OKLAHOMA CITY, OK | MidFirst Bank |
| $350,000–1 million | EDGE COMMERCIAL INTERIORS LLC | OKLAHOMA CITY, OK | Valliance Bank |
| $150,000–350,000 | EDWIN D. ABEL INC. | OKLAHOMA CITY, OK | First Fidelity Bank |
| $1–2 million | EGR CONSTRUCTION INC. | OKLAHOMA CITY, OK | First National Bank of Oklahoma |
| $350,000–1 million | EHC, INC. | OKLAHOMA CITY, OK | Cornerstone Bank |
| $150,000–350,000 | EL GATO GORDO LLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | EL JEFFE ENTERPRISES, LLC | OKLAHOMA CITY, OK | Arvest Bank |
| $150,000–350,000 | EL PINTO MEXICAN RESTAURANT, INC. | OKLAHOMA CITY, OK | InterBank |
| $150,000–350,000 | ELECTRICAL SOLUTIONS OF OKLAHOMA INC | OKLAHOMA CITY, OK | Regent Bank |
| $2–5 million | ELECTRO ENTERPRISES, INC. | OKLAHOMA CITY, OK | International Bank of Commerce |
| $350,000–1 million | ELEVATED PAVER SYSTEMS, LLC | OKLAHOMA CITY, OK | CrossFirst Bank |
| $350,000–1 million | ELIAS, BOOKS, BROWN & NELSON, P.C. | OKLAHOMA CITY, OK | MidFirst Bank |
| $1–2 million | ELITE TRAILER MFG., L.L.C. | OKLAHOMA CITY, OK | First Fidelity Bank |
| $150,000–350,000 | ELLIOTT ROOFING LLC | OKLAHOMA CITY, OK | Commerce Bank |
| $150,000–350,000 | ELLIS MFG CO INC | OKLAHOMA CITY, OK | JPMorgan Chase Bank, National Association |
| $1–2 million | ELSR MANAGEMENT, LLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | EMERGENCY PHYSICIANS OF MIDWEST CITY LLC | OKLAHOMA CITY, OK | Arvest Bank |
| $350,000–1 million | EMERGING BRANDS, INC | OKLAHOMA CITY, OK | SpiritBank |
| $150,000–350,000 | EMMANUEL'S TRUCKING AGENCY LLC | OKLAHOMA CITY, OK | Kabbage, Inc. |
| $150,000–350,000 | EMMAUS BAPTIST CHURCH | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | EMRICK'S VAN AND STORAGE COMPANY | OKLAHOMA CITY, OK | InterBank |
| $350,000–1 million | EMSCO ELECTRIC SUPPLY CO., INC. | OKLAHOMA CITY, OK | MidFirst Bank |
| $150,000–350,000 | ENCHILADA KINGS LLC | OKLAHOMA CITY, OK | BOKF, National Association |
| $150,000–350,000 | ENCORE FULFILLMENT LLC | OKLAHOMA CITY, OK | The Citizens Bank of Edmond |
| $150,000–350,000 | ENDEX OF OKLAHOMA INC | OKLAHOMA CITY, OK | INTRUST Bank, National Association |
| $150,000–350,000 | ENDODONTIC ASSOCIATES LLC | OKLAHOMA CITY, OK | NBC Oklahoma |
| $350,000–1 million | ENERGY & ENVIRONMENTAL SERVICES, INC, AN OKLAHOMA CORPORATION | OKLAHOMA CITY, OK | Stride Bank, National Association |
| $150,000–350,000 | ENERGY FC, LLC | OKLAHOMA CITY, OK | First Fidelity Bank |
| $150,000–350,000 | ENERQUEST OIL AND GAS, LLC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | ENGINEERED EQUIPMENT, INC. | OKLAHOMA CITY, OK | Simmons Bank |
| $350,000–1 million | ENGINEERED SYSTEMS & ENERGY SOLUTIONS, PC | OKLAHOMA CITY, OK | First Fidelity Bank |
| $150,000–350,000 | ENVIRONMENTAL TESTING INC | OKLAHOMA CITY, OK | Kirkpatrick Bank |
| $2–5 million | EPWORTH LIVING | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | ES SPEECH LLC | OKLAHOMA CITY, OK | BancFirst |
| $2–5 million | ESKRIDGE AUTO GROUP, INC. | OKLAHOMA CITY, OK | The First State Bank |
| $2–5 million | EST INC | OKLAHOMA CITY, OK | MidFirst Bank |
| $150,000–350,000 | ESTELL EXCAVATING, INC. | OKLAHOMA CITY, OK | BancFirst |
| $1–2 million | EUREKA WATER COMPANY | OKLAHOMA CITY, OK | MidFirst Bank |
| $350,000–1 million | EVEREST OPERATIONS MANAGEMENT LLC | OKLAHOMA CITY, OK | BOKF, National Association |
| $150,000–350,000 | EVERGREEN ENTERPRISES, INC. | OKLAHOMA CITY, OK | First Fidelity Bank |
| $150,000–350,000 | EXAPTIVE INC | OKLAHOMA CITY, OK | Bank of America, National Association |
| $350,000–1 million | EXCEL FOOD MART INC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | EXCHANGE CLUB CENTER OF PREVENTION OF CHILD ABUSE OF OKLAHOMA, INC. | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | EXCHANGE TRADED CONCEPTS LLC | OKLAHOMA CITY, OK | JPMorgan Chase Bank, National Association |
| $350,000–1 million | EXENCIAL WEALTH ADVISORS, LLC | OKLAHOMA CITY, OK | First Financial Bank |
| $350,000–1 million | EXPANDED SOLUTIONS, LLC | OKLAHOMA CITY, OK | UMB Bank, National Association |
| $150,000–350,000 | EXPRESS CREDIT AUTO OF TULSA, LLC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | EXPRESS CREDIT AUTO, LLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | EXPRESS UU BAR RANCH, LLC | OKLAHOMA CITY, OK | The Bank of Kremlin |
| $150,000–350,000 | EXTREME PRESSURE CONTROL LLC | OKLAHOMA CITY, OK | First United Bank and Trust Company |
| $350,000–1 million | EYE ASSOCIATES OF OKLAHOMA PLLC | OKLAHOMA CITY, OK | Arvest Bank |
| $150,000–350,000 | FACTOR 110, LLC | OKLAHOMA CITY, OK | Regent Bank |
| $150,000–350,000 | FAITH TABERNACLE ASSOCIATION, INC. | OKLAHOMA CITY, OK | Kirkpatrick Bank |
| $150,000–350,000 | FAKE BAKE, LLC | OKLAHOMA CITY, OK | First Enterprise Bank |
| $150,000–350,000 | FAMILIES FOR EXCELLENCE IN EDUCATION, INC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | FARRINGTON TRUCK PARTS AND REP | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | FARROW ORTHODONTIC HOLDINGS, PLLC | OKLAHOMA CITY, OK | Valliance Bank |
| $150,000–350,000 | FD, THOMPSON & CO PLC | OKLAHOMA CITY, OK | First-Citizens Bank & Trust Company |
| $150,000–350,000 | FEDERAL CONSTRUCTORS, INC. | OKLAHOMA CITY, OK | First Liberty Bank |
| $350,000–1 million | FELLERS, SNIDER, BLANKENSHIP, BAILEY & TIPPENS PC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | FENTON, FENTON, SMITH, RENEAU & MOON, P.C. | OKLAHOMA CITY, OK | Arvest Bank |
| $350,000–1 million | FER INC | OKLAHOMA CITY, OK | The First National Bank and Trust Co, Chickasha, Oklahoma |
| $150,000–350,000 | FESCO, INC. | OKLAHOMA CITY, OK | First National Bank of Oklahoma |
| $150,000–350,000 | FIDLER MARKETING, INC. | OKLAHOMA CITY, OK | MidFirst Bank |
| $150,000–350,000 | FIEST BELL ROAD | OKLAHOMA CITY, OK | SpiritBank |
| $1–2 million | FIESTA HOLDINGS, INC | OKLAHOMA CITY, OK | SpiritBank |
| $150,000–350,000 | FINE ARTS ENGRAVING CO. INC. | OKLAHOMA CITY, OK | Kirkpatrick Bank |
| $150,000–350,000 | FINE LINER, INC. | OKLAHOMA CITY, OK | MidFirst Bank |
| $350,000–1 million | FIRE LEAF ENTERPRISES LLC | OKLAHOMA CITY, OK | Valliance Bank |
| $150,000–350,000 | FIREBIRDS OF OKLAHOMA CITY LLC | OKLAHOMA CITY, OK | PNC Bank, National Association |
| $150,000–350,000 | FIRST FINANCIAL NETWORK, INC. | OKLAHOMA CITY, OK | JPMorgan Chase Bank, National Association |
| $1–2 million | FIRST MAINTENANCE COMPANY | OKLAHOMA CITY, OK | The First State Bank |
| $350,000–1 million | FIRST MED URGENT CARE, LLC | OKLAHOMA CITY, OK | BOKF, National Association |
| $350,000–1 million | FIRST WATER CONTRACTING, LLC | OKLAHOMA CITY, OK | First United Bank and Trust Company |
| $350,000–1 million | FISHER PRODUCTS, L.L.C | OKLAHOMA CITY, OK | Watermark Bank |
| $150,000–350,000 | FIVE STAR STEEL, INC. | OKLAHOMA CITY, OK | INTRUST Bank, National Association |
| $350,000–1 million | FJ MUSIC LLC | OKLAHOMA CITY, OK | First National Bank of Oklahoma |
| $350,000–1 million | FLANCO GASKET AND MFG INC | OKLAHOMA CITY, OK | Frontier State Bank |