| $150,000–350,000 | DEBEE CLARK, PLLC | OKLAHOMA CITY, OK | First Security Bank and Trust Company |
| $150,000–350,000 | DEEP DEUCE GRILL, LLC | OKLAHOMA CITY, OK | Prism Bank |
| $350,000–1 million | DELAWARE NATION ECONOMIC DEVELOPMENT AUTHORITY, LLC | OKLAHOMA CITY, OK | Bank 7 |
| $5–10 million | DELAWARE RESOURCE GROUP OF OKLAHOMA, LLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | DELCO DIESEL SERVICES, INC. | OKLAHOMA CITY, OK | First United Bank and Trust Company |
| $1–2 million | DELCO ELECTRIC, INC. | OKLAHOMA CITY, OK | Prime Bank |
| $150,000–350,000 | DELGADOS CONSTRUCTION INC. | OKLAHOMA CITY, OK | Armstrong Bank |
| $150,000–350,000 | DEN-CON TOOL CO. | OKLAHOMA CITY, OK | CrossFirst Bank |
| $150,000–350,000 | DENTCRAFT TOOLS LLC | OKLAHOMA CITY, OK | NBC Oklahoma |
| $150,000–350,000 | DERBY ENERGY, LLC | OKLAHOMA CITY, OK | MidFirst Bank |
| $150,000–350,000 | DESIGN+BUILD GROUP, LLC | OKLAHOMA CITY, OK | CrossFirst Bank |
| $350,000–1 million | DESTINY CHRISTIAN SCHOOL INC | OKLAHOMA CITY, OK | Valliance Bank |
| $150,000–350,000 | DEVINCI CAST STONE, LLC | OKLAHOMA CITY, OK | First Fidelity Bank |
| $2–5 million | DIGESTIVE DISEASE SPECIALISTS, INC. | OKLAHOMA CITY, OK | Simmons Bank |
| $350,000–1 million | DIGITAL NETWORKS, LLC | OKLAHOMA CITY, OK | NBC Oklahoma |
| $150,000–350,000 | DIGITAL SIX LABORATORIES, INC. | OKLAHOMA CITY, OK | Arvest Bank |
| $2–5 million | DIPPIN' DOTS HOLDING, L.L.C. | OKLAHOMA CITY, OK | Simmons Bank |
| $150,000–350,000 | DLS-OKC LLC | OKLAHOMA CITY, OK | Simmons Bank |
| $150,000–350,000 | DM WRIGHT HOLDING LLC | OKLAHOMA CITY, OK | Valliance Bank |
| $150,000–350,000 | DODSON-THOMPSON-MANSFIELD, PLLC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | DOMINO EQUIPMENT COMPANY, LLC | OKLAHOMA CITY, OK | InterBank |
| $150,000–350,000 | DON'S PEST & WEED CONTROL, INC. | OKLAHOMA CITY, OK | The First National Bank of Hooker |
| $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 |
| $350,000–1 million | DOWNEY CONTRACTING, LLC | OKLAHOMA CITY, OK | Sovereign 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 |
| $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 | DRAKE SEAFOOD LLC | OKLAHOMA CITY, OK | Itria Ventures LLC |
| $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 | 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 & J RESTAURANTS L.L.C. | OKLAHOMA CITY, OK | SpiritBank |
| $150,000–350,000 | E. B. ARCHBALD & ASSOCIATES, INC. | OKLAHOMA CITY, OK | RCB 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 | Bank 7 |
| $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 |
| $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 | EMMAUS BAPTIST CHURCH | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | EMRICK'S VAN AND STORAGE COMPANY | OKLAHOMA CITY, OK | InterBank |
| $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 CORPORATIO | 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 | Sovereign Bank |
| $150,000–350,000 | ESTELL EXCAVATING, INC. | OKLAHOMA CITY, OK | BancFirst |
| $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 OKLAHOM | 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 |
| $350,000–1 million | EXPRESS CREDIT AUTO LLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | EXPRESS CREDIT AUTO OF TULSA, LLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | EXPRESS UU BAR RANCH, LLC | OKLAHOMA CITY, OK | Cowboy Bank |
| $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 | 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 | 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 |