| $150,000–350,000 | CONSOLIDATED ASSET MANAGEMENT - OKC LLC | OKLAHOMA CITY, OK | Bank 7 |
| $150,000–350,000 | CONSOLIDATED BUILDERS SUPPLY, INC. | OKLAHOMA CITY, OK | First United Bank and Trust Company |
| $1–2 million | CONSOLIDATED NETWORKS CORPORATION | OKLAHOMA CITY, OK | First United Bank and Trust Company |
| $150,000–350,000 | CONSTRUCTION UNLIMITED LLC | OKLAHOMA CITY, OK | Arvest Bank |
| $150,000–350,000 | CONTAINER SUPPLY, INC. | OKLAHOMA CITY, OK | MidFirst Bank |
| $150,000–350,000 | CONTINENTAL BROKERS AND CONSULTANTS, INC. | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | CONTINENTAL DRIVE AWAY, INC. | OKLAHOMA CITY, OK | First Liberty Bank |
| $350,000–1 million | CONTROL FIRE SYSTEMS, COMPANY | OKLAHOMA CITY, OK | InterBank |
| $150,000–350,000 | CONVENTIONS AND MORE, LLC | OKLAHOMA CITY, OK | Fidelity Bank, National Association |
| $150,000–350,000 | COOLGREENS HOLDINGS, LLC | OKLAHOMA CITY, OK | Legacy Bank |
| $150,000–350,000 | COOP ALE WORKS, LLC | OKLAHOMA CITY, OK | Valliance Bank |
| $150,000–350,000 | COOPER CABINETS INC | OKLAHOMA CITY, OK | BOKF, National Association |
| $150,000–350,000 | COOPER LINCOLN OF EDMOND, LLC | OKLAHOMA CITY, OK | International Bank of Commerce |
| $350,000–1 million | COORDINATED CARE HEALTH SOLUTIONS, LLC | OKLAHOMA CITY, OK | First Liberty Bank |
| $150,000–350,000 | COPELAND TRUCKING CO INC | OKLAHOMA CITY, OK | The First National Bank and Trust Co, Chickasha, Oklahoma |
| $350,000–1 million | CORY'S AUDIO VISUAL SERVICES, LLC | OKLAHOMA CITY, OK | RCB Bank |
| $150,000–350,000 | CORYELL ROOFING & CONSTRUCTION INC | OKLAHOMA CITY, OK | Prosperity Bank |
| $150,000–350,000 | COUNTRY LEISURE INC | OKLAHOMA CITY, OK | The First State Bank |
| $350,000–1 million | COWAN GROUP ENGINEERING, LLC | OKLAHOMA CITY, OK | First Fidelity Bank |
| $150,000–350,000 | COWAN, HUBBERT & FRANKLIN, PLLC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | COWBOY INVESTMENT GROUP LLC | OKLAHOMA CITY, OK | Community Bank |
| $150,000–350,000 | CPAOKC, PLLC | OKLAHOMA CITY, OK | First Fidelity Bank |
| $150,000–350,000 | CRANE, YOUNG AND ASSOCIATES, INC. | OKLAHOMA CITY, OK | InterBank |
| $350,000–1 million | CRAWFORD & ASSOCIATES, P.C. | OKLAHOMA CITY, OK | The Pauls Valley National Bank |
| $350,000–1 million | CRAWLEY PETROLEUM CORPORATION | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | CREATING MASTERPIECE SMILES OKC PLLC | OKLAHOMA CITY, OK | The First State Bank |
| $350,000–1 million | CREATIVE IT SOLUTIONS, LLC | OKLAHOMA CITY, OK | Bank 7 |
| $350,000–1 million | CRISTO REY OKLAHOMA CITY CATHOLIC HIGH SCHOOL, INC | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | CROSS OIL & GAS INC. | OKLAHOMA CITY, OK | Arvest Bank |
| $2–5 million | CROSSINGS COMMUNITY CHURCH, INC | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | CROSSLAND'S A & A RENT-ALL & SALES CO. | OKLAHOMA CITY, OK | Simmons Bank |
| $350,000–1 million | CROSSROADS AUTO MALL, INC. | OKLAHOMA CITY, OK | Arvest Bank |
| $150,000–350,000 | CROSSROADS FAMILY DENTISTRY,PLLC | OKLAHOMA CITY, OK | Legend Bank, National Association |
| $350,000–1 million | CROSSROADS ROOFING & SUPPLY INC | OKLAHOMA CITY, OK | Kirkpatrick Bank |
| $2–5 million | CROWE & DUNLEVY, A PROFEESIONAL CORPORATION | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | CROWN CAPITAL PARTNERS | OKLAHOMA CITY, OK | Legacy Bank |
| $150,000–350,000 | CROWN ENERGY COMPANY | OKLAHOMA CITY, OK | International Bank of Commerce |
| $150,000–350,000 | CSA EMPLOYEE LEASING CORP | OKLAHOMA CITY, OK | Prosperity Bank |
| $150,000–350,000 | CULINARY EDGE LLC | OKLAHOMA CITY, OK | Arvest Bank |
| $150,000–350,000 | CUSTOM EXTERIORS LLC | OKLAHOMA CITY, OK | Fidelity Bank, National Association |
| $150,000–350,000 | CUSTOM PLUMPING BY CHRIS, LLC | OKLAHOMA CITY, OK | Valliance Bank |
| $5–10 million | D & M CARRIERS LLC | OKLAHOMA CITY, OK | Arvest Bank |
| $2–5 million | D & M EMPLOYEE LEASING LLC | OKLAHOMA CITY, OK | Arvest Bank |
| $150,000–350,000 | D AND M DISTRIBUTION SERVICES INC. | OKLAHOMA CITY, OK | First Fidelity Bank |
| $350,000–1 million | D&D TRUCK SALES, INC. | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | D&L ENTERPRISES, INC. | OKLAHOMA CITY, OK | BOKF, National Association |
| $150,000–350,000 | D. H. FRENCH CONSTRUCTION CO. | OKLAHOMA CITY, OK | BancFirst |
| $2–5 million | DALE ROGERS TRAINING CENTER, INC. | OKLAHOMA CITY, OK | Prosperity Bank |
| $150,000–350,000 | DANCO INSPECTION INCORPORATED | OKLAHOMA CITY, OK | First Bethany Bank & Trust |
| $150,000–350,000 | DANIEL PINES MARKOFF PC | OKLAHOMA CITY, OK | Prosperity Bank |
| $2–5 million | DATA MONITOR SYSTEMS, INC. | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | DATALOG LWT INC | OKLAHOMA CITY, OK | RCB Bank |
| $150,000–350,000 | DATEBOX, INC. | OKLAHOMA CITY, OK | Readycap Lending, LLC |
| $350,000–1 million | DAUGHERTY, FOWLER, PEREGRIN, HAUGHT & JENSON, A PROFESSIONAL CORPORATION | OKLAHOMA CITY, OK | BancFirst |
| $150,000–350,000 | DAVID CHANSOLME, M.D., P.C. | OKLAHOMA CITY, OK | Fidelity Bank, National Association |
| $1–2 million | DAVID STANLEY CHEVROLET, INC. | OKLAHOMA CITY, OK | BancFirst |
| $1–2 million | DAVID STANLEY DODGE, L.L.C. | OKLAHOMA CITY, OK | Ally Bank |
| $150,000–350,000 | DAVIDS SPORT CENTER, INC | OKLAHOMA CITY, OK | Arvest Bank |
| $150,000–350,000 | DAVIDSONS TURF TEAM LLC | OKLAHOMA CITY, OK | First United Bank and Trust Company |
| $350,000–1 million | DAVIS PAINT AND COLLISION INC | OKLAHOMA CITY, OK | The First State Bank |
| $150,000–350,000 | DAVIS TRUCK SERVICE, INC. | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | DCI INDUSTRIES, LLC | OKLAHOMA CITY, OK | Gulf Capital Bank |
| $1–2 million | DEALERS AUTO AUCTION OF OKC, INC | OKLAHOMA CITY, OK | First Enterprise Bank |
| $2–5 million | DEAN MCGEE EYE INSTITUTE | OKLAHOMA CITY, OK | BancFirst |
| $350,000–1 million | DEATSCHWERKS, LLC | OKLAHOMA CITY, OK | First United Bank and Trust Company |
| $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 | Oklahoma State 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 | DELGADO'S CONSTRUCTION, INC. | OKLAHOMA CITY, OK | Armstrong Bank |
| $150,000–350,000 | DELTA ELECTRICAL CONTRACTORS, INC. | OKLAHOMA CITY, OK | MidFirst Bank |
| $150,000–350,000 | DEN-CON TOOL CO. | OKLAHOMA CITY, OK | CrossFirst Bank |
| $350,000–1 million | DENTAL DEPOT DSO LLC | OKLAHOMA CITY, OK | MidFirst Bank |
| $350,000–1 million | DENTAL DEPOT MIDWEST CITY LLC | OKLAHOMA CITY, OK | MidFirst Bank |
| $350,000–1 million | DENTAL DEPOT OF 145TH & N PENN PLLC | OKLAHOMA CITY, OK | MidFirst Bank |
| $150,000–350,000 | DENTAL DEPOT OF 62ND AND SOUTH WESTERN PLLC | OKLAHOMA CITY, OK | MidFirst Bank |
| $350,000–1 million | DENTAL DEPOT OF RENO AND ROCKWELL PLLC | OKLAHOMA CITY, OK | MidFirst Bank |
| $150,000–350,000 | DENTAL DEPOT ORTHODONTICS CENTRAL OKC PLLC | OKLAHOMA CITY, OK | MidFirst Bank |
| $350,000–1 million | DENTAL DEPOT WESTMINSTER VILLAGE LLC | OKLAHOMA CITY, OK | MidFirst 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 | DESTINY GLOBAL, LLC | OKLAHOMA CITY, OK | First Bank of Owasso |
| $150,000–350,000 | DEVINCI CAST STONE, LLC | OKLAHOMA CITY, OK | First Fidelity Bank |
| $150,000–350,000 | DEVON INDUSTRIES, INC | OKLAHOMA CITY, OK | JPMorgan Chase Bank, National Association |
| $350,000–1 million | DEWITT INVESTMENTS, LLC | OKLAHOMA CITY, OK | First Enterprise 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 |
| $150,000–350,000 | DIMICK HYDE AND LEWIS P C | OKLAHOMA CITY, OK | Prosperity 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 |
| $2–5 million | DOBSON TECHNOLOGIES, INC. | OKLAHOMA CITY, OK | MidFirst 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 |