| $350,000–1 million | PRIORITY STAFFCORP LLC | TULSA, OK | Triad Bank, National Association |
| $350,000–1 million | PRL MANUFACTURING INC | TULSA, OK | Grand Bank |
| $150,000–350,000 | PRO PIPING & FABRICATION LLC | TULSA, OK | Mabrey Bank |
| $350,000–1 million | PRO-MOW LAWN AND LANDSCAPE, LLC | TULSA, OK | Triad Bank, National Association |
| $1–2 million | PROCESS MANUFACTURING CO., INC. | TULSA, OK | Grand Bank |
| $150,000–350,000 | PROCRAFT MASONRY, LLC | TULSA, OK | RCB Bank |
| $150,000–350,000 | PROFESSIONAL BENEFIT ADMINISTRATORS WEST, LLC | TULSA, OK | Firstar Bank |
| $150,000–350,000 | PROFESSIONAL FABRICATORS INC | TULSA, OK | The Central Trust Bank |
| $350,000–1 million | PROFESSIONAL IMAGE INC | TULSA, OK | The Central Trust Bank |
| $150,000–350,000 | PROGRAM MANAGEMENT GROUP LLC | TULSA, OK | Regent Bank |
| $150,000–350,000 | PROGRESSIVE MACHINE TOOLS | TULSA, OK | BancFirst |
| $150,000–350,000 | PROSOURCE OF TULSA, LLC | TULSA, OK | Security Bank |
| $150,000–350,000 | PROTOS, INC | TULSA, OK | Bank of Commerce |
| $1–2 million | PRYER AEROSPACE, LLC | TULSA, OK | Mabrey Bank |
| $350,000–1 million | PT ENTERPRISES LLC | TULSA, OK | Security Bank |
| $150,000–350,000 | PUB W- 61ST & YALE, L.L.C. | TULSA, OK | BancFirst |
| $350,000–1 million | PUBLICAN LLC | TULSA, OK | Security Bank |
| $150,000–350,000 | PULMONARY MEDICINE ASSOCIATES INC | TULSA, OK | Chickasaw Community Bank |
| $150,000–350,000 | PULSE-BAC VACUUM SYSTEMS LLC | TULSA, OK | AVB Bank |
| $150,000–350,000 | QUAL-TRON INC | TULSA, OK | Bank of America, National Association |
| $350,000–1 million | QUALITY PLATING COMPANY OF TULSA, INC. | TULSA, OK | Arvest Bank |
| $150,000–350,000 | QUALITY STEEL COATINGS CORP. | TULSA, OK | Security Bank |
| $150,000–350,000 | QUANTUM ENERGY, INC | TULSA, OK | SpiritBank |
| $150,000–350,000 | QUEENIES PLUS INC | TULSA, OK | Mabrey Bank |
| $1–2 million | QUEST AUTOMATED SERVICES LLC | TULSA, OK | BOKF, National Association |
| $150,000–350,000 | QUICK TURN MANUFACTURING LLC | TULSA, OK | F & M Bank |
| $150,000–350,000 | QUICKCERT INC | TULSA, OK | Grand Bank |
| $350,000–1 million | QUIK PRINT OF TULSA, INC | TULSA, OK | Arvest Bank |
| $150,000–350,000 | R & L PLUMBING COMPANY EMPLOYEE TAX ACCOUNT | TULSA, OK | JPMorgan Chase Bank, National Association |
| $150,000–350,000 | R.L.S. CONSTRUCTION LLC | TULSA, OK | BMO Bank National Association |
| $350,000–1 million | R.W. HOLLAND I, LLC | TULSA, OK | Security Bank |
| $150,000–350,000 | RACQUET AND HEALTH 91,LLC | TULSA, OK | Mabrey Bank |
| $150,000–350,000 | RADIOLOGICAL SERVICES INC. | TULSA, OK | Arvest Bank |
| $1–2 million | RADIOLOGY CONSULTANTS OF TULSA INC. | TULSA, OK | Mabrey Bank |
| $150,000–350,000 | RAM CONCRETE PUMPING LLC | TULSA, OK | First Pryority Bank |
| $350,000–1 million | RAM ENERGY LLC | TULSA, OK | BancFirst |
| $150,000–350,000 | RAM TRANSPORTATION LLC | TULSA, OK | First Pryority Bank |
| $350,000–1 million | RAMBO ACQUISITION COMPANY | TULSA, OK | The Central Trust Bank |
| $150,000–350,000 | RAMCCO CONCRETE CONSTRUCTION, LLC | TULSA, OK | Arvest Bank |
| $150,000–350,000 | RB CHIMI'S, LLC | TULSA, OK | American Bank and Trust Company |
| $350,000–1 million | RBHV TULSA, LLC | TULSA, OK | The Huntington National Bank |
| $150,000–350,000 | RCI ELECTRIC, INC. | TULSA, OK | WeStreet FCU |
| $150,000–350,000 | RDK & ASSOCIATES, INC. | TULSA, OK | Commerce Bank |
| $150,000–350,000 | REAL WIRELESS INC | TULSA, OK | Regent Bank |
| $350,000–1 million | RED DEVIL, INCORPORATED | TULSA, OK | Arvest Bank |
| $150,000–350,000 | REDEEMER COVENANT CHURCH OF TULSA | TULSA, OK | First Oklahoma Bank |
| $150,000–350,000 | REDLINE RESOURCES, LLC | TULSA, OK | First Oklahoma Bank |
| $150,000–350,000 | REDROCK CANYON GRILL - TULSA, LLC | TULSA, OK | BancFirst |
| $1–2 million | REGAL CAR SALES AND CREDIT LLC | TULSA, OK | Patrons Bank National Association |
| $350,000–1 million | REGENT PREPARATORY SCHOOL OF OKLAHOMA | TULSA, OK | FNB Coweta |
| $150,000–350,000 | REGIONAL BRAIN INSTITUTE PLLC | TULSA, OK | Arvest Bank |
| $150,000–350,000 | REISS PAINTING COMPANY OF OKLAHOMA, LLC | TULSA, OK | Bank of Commerce |
| $350,000–1 million | REPUTATION SERVICES & MANUFACTURING, LLC | TULSA, OK | First Oklahoma Bank |
| $150,000–350,000 | RESET RESTORATION SERVICES LLC | TULSA, OK | First Oklahoma Bank |
| $150,000–350,000 | RESOLUTE ENGINEERING LLC | TULSA, OK | First Oklahoma Bank |
| $150,000–350,000 | RESONANCE CENTER FOR WOMEN INC | TULSA, OK | Grand Bank |
| $150,000–350,000 | RESOURCEONE ADMINISTRATORS, INC | TULSA, OK | Arvest Bank |
| $150,000–350,000 | RETRO ROOTER COMPANY | TULSA, OK | JPMorgan Chase Bank, National Association |
| $2–5 million | REW III LLC | TULSA, OK | Citizens Bank, National Association |
| $350,000–1 million | REYNOLDS FRENCH & CO | TULSA, OK | Mabrey Bank |
| $350,000–1 million | RHKM MANAGEMENT LLC | TULSA, OK | City Bank |
| $350,000–1 million | RHODES, HIERONYMUS, JONES, TUCKER & GABLE, P.L.L.C. | TULSA, OK | Commerce Bank |
| $1–2 million | RICH & CARTMILL, INC. | TULSA, OK | Vast Bank, National Association |
| $350,000–1 million | RICHARDS & CONNOR, PLLC | TULSA, OK | Arvest Bank |
| $150,000–350,000 | RICHARDSON RICHARDSON BOUDREAUEX | TULSA, OK | Security Bank |
| $150,000–350,000 | RICK RENNER MINISTRIES, INC | TULSA, OK | First Bank of Owasso |
| $150,000–350,000 | RIGHT STAFF LLC | TULSA, OK | Arvest Bank |
| $150,000–350,000 | RIVER PAINT CONSTRUCTION LLC | TULSA, OK | Firstar Bank |
| $1–2 million | RIVERFIELD COUNTRY DAY SCHOOL | TULSA, OK | BancFirst |
| $150,000–350,000 | RIVERSIDE FLIGHT CENTER INCORPORATED | TULSA, OK | American Heritage Bank |
| $350,000–1 million | ROARK LANDSCAPING CORPORATION | TULSA, OK | The Central Trust Bank |
| $350,000–1 million | ROBERT H ZOELLNER & ASSOCIATES PC | TULSA, OK | Regent Bank |
| $150,000–350,000 | ROBERT J. HERMAN DDS MS PC | TULSA, OK | Vast Bank, National Association |
| $1–2 million | ROBERTSON TIRE COMPANY, INC. | TULSA, OK | Prosperity Bank |
| $150,000–350,000 | ROBINSON AIR INC | TULSA, OK | Arvest Bank |
| $150,000–350,000 | ROBINSON GLASS OF TULSA INC | TULSA, OK | RCB Bank |
| $150,000–350,000 | RODNEY D KAUFMANN, CPA, INC. | TULSA, OK | Security Bank |
| $350,000–1 million | RODOLF & TODD, PLLC | TULSA, OK | BancFirst |
| $150,000–350,000 | ROGERS GLASS, INC. | TULSA, OK | American Heritage Bank |
| $150,000–350,000 | ROOSEVELT INC | TULSA, OK | Grand Bank |
| $150,000–350,000 | ROSA OPERATING LLC | TULSA, OK | American Bank and Trust Company |
| $350,000–1 million | ROSENSTEIN, FIST & RINGOLD INC | TULSA, OK | BOKF, National Association |
| $150,000–350,000 | ROSS ENGINEERING, LLC | TULSA, OK | First Oklahoma Bank |
| $150,000–350,000 | ROSS GROUP DESIGN BUILD LLC | TULSA, OK | First Oklahoma Bank |
| $350,000–1 million | ROUTE 66 MOTORCYCLES, LLC | TULSA, OK | Security Bank |
| $150,000–350,000 | ROYAL VALET TULSA, LLC | TULSA, OK | BancFirst |
| $150,000–350,000 | RULE FASTENERS INC | TULSA, OK | Mabrey Bank |
| $150,000–350,000 | RUNAMUK INC DBA STONEHORSE CAFE | TULSA, OK | Mabrey Bank |
| $150,000–350,000 | RUPE HELMER GROUP LLC | TULSA, OK | Vast Bank, National Association |
| $350,000–1 million | RUSTIC CUFF LLC | TULSA, OK | First Bank of Owasso |
| $150,000–350,000 | RWC INVESTMENTS LLC | TULSA, OK | SpiritBank |
| $150,000–350,000 | RWINGS ROCK LLC | TULSA, OK | RCB Bank |
| $350,000–1 million | RX OPTICAL INC. | TULSA, OK | BancFirst |
| $150,000–350,000 | SAFECO FILTER PRODUCTS INC | TULSA, OK | Arvest Bank |
| $350,000–1 million | SAFETY TRAINING SYSTEMS, INC. | TULSA, OK | BOKF, National Association |
| $5–10 million | SAGE NET LLC | TULSA, OK | Commerce Bank |
| $350,000–1 million | SAINT MATTHEWS' CHURCHES | TULSA, OK | Blue Sky Bank |
| $350,000–1 million | SALINA SPAVINAW TELEPHONE COMPANY | TULSA, OK | BancFirst |
| $150,000–350,000 | SALON BEAU CORP | TULSA, OK | Red Crown FCU |
| $350,000–1 million | SALTUS TECHNOLOGIES, LLC | TULSA, OK | Bank 7 |