| $150,000–350,000 | CARGILL HEAT TREAT, LLC. | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | CARING PARTNERS, INC | OKLAHOMA CITY, OK | Central Bank of St. Louis |
| $350,000–1 million | CARTS AND PARTS INC | OKLAHOMA CITY, OK | The Citizens Bank of Edmond |
| $150,000–350,000 | CASA OF OKLAHOMA COUNTY INC | OKLAHOMA CITY, OK | First National Bank of Oklahoma |
| $150,000–350,000 | CASA PERICO INC | OKLAHOMA CITY, OK | First National Bank of Oklahoma |
| $2–5 million | CASADY SCHOOL INC. | OKLAHOMA CITY, OK | MidFirst Bank |
| $350,000–1 million | CASEY CARPET COMPANY | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | CASHLAND HOLDINGS, LLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | CASTLE ROCK HEF, LLC | OKLAHOMA CITY, OK | Valliance Bank |
| $150,000–350,000 | CASTON ARCHITECTURAL MILLWORK, INC | OKLAHOMA CITY, OK | Valliance Bank |
| $150,000–350,000 | CATHCART & DOOLEY P.C. | OKLAHOMA CITY, OK | INTRUST Bank, National Association |
| $350,000–1 million | CATHOLIC CHARITIES OF THE ARCHDIOCESE OF OKLAHOMA CITY INC. | OKLAHOMA CITY, OK | MidFirst Bank |
| $350,000–1 million | CATTLEMEN'S STEAKHOUSE, INC. | OKLAHOMA CITY, OK | First United Bank and Trust Company |
| $2–5 million | CB RESTAURANTS, INC. | OKLAHOMA CITY, OK | First Oklahoma Bank |
| $2–5 million | CEC CORPORATION | OKLAHOMA CITY, OK | CrossFirst Bank |
| $150,000–350,000 | CEDAR CREEK CONSULTING INC | OKLAHOMA CITY, OK | Valliance Bank |
| $150,000–350,000 | CEGX HOLDING COMPANY | OKLAHOMA CITY, OK | JPMorgan Chase Bank, National Association |
| $350,000–1 million | CENTENNIAL HOSPICE, LLC | OKLAHOMA CITY, OK | First National Bank of Oklahoma |
| $150,000–350,000 | CENTER FOR ECONOMIC DEVELOPMENT LAW, PLLC | OKLAHOMA CITY, OK | First National Bank of Oklahoma |
| $150,000–350,000 | CENTER FOR WOMEN'S HEALTH LLC | OKLAHOMA CITY, OK | BOKF, National Association |
| $350,000–1 million | CENTRAL ANESTHESIA ASSOCIATES | OKLAHOMA CITY, OK | MidFirst Bank |
| $350,000–1 million | CENTRAL BURIAL VAULTS, INC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | CENTRAL FORD/NEW HOLLAND, INC. | OKLAHOMA CITY, OK | YNB |
| $150,000–350,000 | CENTRAL GLASS AND MIRROR, INC. | OKLAHOMA CITY, OK | Kirkpatrick Bank |
| $2–5 million | CENTRAL OKLAHOMA AMERICAN INDIAN HEALTH COUNCIL, INC. | OKLAHOMA CITY, OK | INTRUST Bank, National Association |
| $350,000–1 million | CENTRAL OKLAHOMA HABITAT FOR HUMANITY, INC | OKLAHOMA CITY, OK | International Bank of Commerce |
| $150,000–350,000 | CENTRAL OKLAHOMA WORKFORCE INVESTMENT BOARD, INC. | OKLAHOMA CITY, OK | Oklahoma's CU |
| $350,000–1 million | CENTRAL STATE BEAUTY ACADEMY INC | OKLAHOMA CITY, OK | First Liberty Bank |
| $150,000–350,000 | CENTURY ENTERPRISES MANAGEMENT LTD | OKLAHOMA CITY, OK | First Liberty Bank |
| $2–5 million | CENTURY, LLC | OKLAHOMA CITY, OK | BOKF, National Association |
| $150,000–350,000 | CGT WHOLESALE FLOORING LLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | CHALK SPORTS, LLC | OKLAHOMA CITY, OK | Great Plains National Bank |
| $150,000–350,000 | CHAMPION HOTELS & DEVELOPMENT COMPANY OF OKLAHOMA LLC | OKLAHOMA CITY, OK | High Plains Bank |
| $150,000–350,000 | CHAMPION ROOFING LLC | OKLAHOMA CITY, OK | Bank of America, National Association |
| $350,000–1 million | CHAPPELL SUPPLY & EQUIPMENT COMPANY | OKLAHOMA CITY, OK | Prosperity Bank |
| $150,000–350,000 | CHARLESSON LLC | OKLAHOMA CITY, OK | MidFirst Bank |
| $150,000–350,000 | CHARLESTON'S - S OKC, LLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | CHARLESTON'S ENTERPRISES, INC. | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | CHARLESTON'S OF MERIDIAN, INC. | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | CHARLESTON'S-BRICKTOWN, LLC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | CHARLESTON'S-W MEMORIAL RD, LLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | CHARLIE BEAN COFFEE, LLC | OKLAHOMA CITY, OK | Prime Bank |
| $5–10 million | CHC HOLDINGS | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | CHEEK & FALCONE, PLLC | OKLAHOMA CITY, OK | NBC Oklahoma |
| $150,000–350,000 | CHEEK LAW FIRM, PLLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | CHELINOS MANAGEMENT, INC. | OKLAHOMA CITY, OK | First Enterprise Bank |
| $150,000–350,000 | CHIEF SERVICES LLC | OKLAHOMA CITY, OK | Valliance Bank |
| $350,000–1 million | CHILD CARE II INC. | OKLAHOMA CITY, OK | MidFirst Bank |
| $150,000–350,000 | CHILDREN'S EYE CARE, PLLC | OKLAHOMA CITY, OK | First National Bank of Oklahoma |
| $150,000–350,000 | CHILDREN'S MEDICAL RESEARCH INC | OKLAHOMA CITY, OK | MidFirst Bank |
| $150,000–350,000 | CHOICE HOME HEALTH, INC | OKLAHOMA CITY, OK | Stride Bank, National Association |
| $150,000–350,000 | CHOICES FOR LIFE OF GEORGIA, LLC | OKLAHOMA CITY, OK | Simmons Bank |
| $350,000–1 million | CHRIST THE KIN CHURCH | OKLAHOMA CITY, OK | MidFirst Bank |
| $150,000–350,000 | CHRISTENSEN LAW GROUP PLLC | OKLAHOMA CITY, OK | The First State Bank |
| $150,000–350,000 | CHRISTENSEN LAW PLLC | OKLAHOMA CITY, OK | The First State Bank |
| $150,000–350,000 | CHRISTIE'S TOY BOX MANAGEMENT CO. | OKLAHOMA CITY, OK | Arvest Bank |
| $150,000–350,000 | CHURCH OF THE HARVEST OF AMERICA, INC. | OKLAHOMA CITY, OK | First Bank |
| $350,000–1 million | CHURCH OF THE SERVANT | OKLAHOMA CITY, OK | MidFirst Bank |
| $350,000–1 million | CIMARRON CONSTRUCTION COMPANY | OKLAHOMA CITY, OK | Prosperity Bank |
| $2–5 million | CIRCLE 9 RESOURCES LLC | OKLAHOMA CITY, OK | MidFirst Bank |
| $150,000–350,000 | CITY CARE, INC. | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | CITY GLASS OKC INC | OKLAHOMA CITY, OK | Armstrong Bank |
| $150,000–350,000 | CITY PAINT WORKS LLC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | CITY RESCUE MISSION, INC. | OKLAHOMA CITY, OK | BOKF, National Association |
| $350,000–1 million | CITY TRAILER INC. | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | CIVIC CENTER FOUNDATION, INC. | OKLAHOMA CITY, OK | First Fidelity Bank |
| $150,000–350,000 | CJEBLAKEWELL, LLC | OKLAHOMA CITY, OK | JPMorgan Chase Bank, National Association |
| $1–2 million | CLAIMS MANAGEMENT RESOURCES | OKLAHOMA CITY, OK | NBC Oklahoma |
| $150,000–350,000 | CLARK CONSTRUCTION | OKLAHOMA CITY, OK | COREBANK |
| $150,000–350,000 | CLASSIC PRINTING, INC. | OKLAHOMA CITY, OK | MidFirst Bank |
| $150,000–350,000 | CLASSIC TILE, STONE & MARBLE | OKLAHOMA CITY, OK | NBC Oklahoma |
| $350,000–1 million | CLEARWATER ENTERPRISES, L.L.C. | OKLAHOMA CITY, OK | International Bank of Commerce |
| $1–2 million | CLEMENTS FOODS CO. | OKLAHOMA CITY, OK | JPMorgan Chase Bank, National Association |
| $350,000–1 million | CLEVYR INC | OKLAHOMA CITY, OK | Armstrong Bank |
| $150,000–350,000 | CLYDE RIGGS CONSTRUCTION, L.L.C. | OKLAHOMA CITY, OK | Simmons Bank |
| $350,000–1 million | CMI ROADBUILDING INC | OKLAHOMA CITY, OK | Wells Fargo Bank, National Association |
| $350,000–1 million | CMP CORPORATION | OKLAHOMA CITY, OK | Regent Bank |
| $150,000–350,000 | CNC METAL SHAPE CONSTRUCTION, LLC | OKLAHOMA CITY, OK | Cross River Bank |
| $2–5 million | COATES FIELD SERVICE, INC. | OKLAHOMA CITY, OK | InterBank |
| $350,000–1 million | COLE, PAINE & CARLIN INSURANCE AGENCY, INC | OKLAHOMA CITY, OK | First Fidelity Bank |
| $350,000–1 million | COLLINS, ZORN & WAGNER, P.C. | OKLAHOMA CITY, OK | BOKF, National Association |
| $5–10 million | COLLISION WORKS OF OKLAHOMA, LLC | OKLAHOMA CITY, OK | Vast Bank, National Association |
| $150,000–350,000 | COLTON & ASSOCIATES, P.C. | OKLAHOMA CITY, OK | First Liberty Bank |
| $350,000–1 million | COMANCHE RESOURCES COMPANY | OKLAHOMA CITY, OK | MidFirst Bank |
| $350,000–1 million | COMFORTWORKS INC. | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | COMMERCIAL CARPET CONTRACTORS, INC | OKLAHOMA CITY, OK | First Liberty Bank |
| $150,000–350,000 | COMMERCIAL LINEN SUPPLY INC | OKLAHOMA CITY, OK | BancFirst |
| $1–2 million | COMMUNICATE NOW! LP | OKLAHOMA CITY, OK | Community National Bank of Okarche |
| $1–2 million | COMMUNITY HEALTH CENTERS, INC. | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | COMMUNITY PATHWAYS UNLIMITED, INC | OKLAHOMA CITY, OK | Customers Bank |
| $350,000–1 million | COMMUNITY WORKS, LLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | COMP RISK MANAGEMENT INC | OKLAHOMA CITY, OK | F & M Bank |
| $150,000–350,000 | COMPLETE HOME RENTALS, LLC | OKLAHOMA CITY, OK | McClain Bank |
| $150,000–350,000 | COMPREHENSIVE PAIN CENTER INC. | OKLAHOMA CITY, OK | BOKF, National Association |
| $5–10 million | COMPSOURCE MUTUAL INSURANCE COMPANY | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | COMPUTER DEALERS AND RECYCLERS GLOBAL INC | OKLAHOMA CITY, OK | International Bank of Commerce |
| $150,000–350,000 | CONCEPTS IN COUNSELING, LLC | OKLAHOMA CITY, OK | Bank 7 |
| $1–2 million | CONCRETE ENTERPRISES, INC. | OKLAHOMA CITY, OK | Regent Bank |
| $350,000–1 million | CONNELLY PAVING COMPANY | OKLAHOMA CITY, OK | Simmons Bank |
| $150,000–350,000 | CONNER L HELMS & ASSOCIATES | OKLAHOMA CITY, OK | BancFirst |