| $350,000–1 million | NORTON CLIPS LLC | INDIANAPOLIS, IN | Simmons Bank |
| $350,000–1 million | NORTON CLIPS LLC | Hanover, MA | Simmons Bank |
| $1–2 million | NOTHUM MANUFACTURING CO.,INC. | SPRINGFIELD, MO | Simmons Bank |
| $150,000–350,000 | NOYDEEN SISTERS MEDICAL GROUP AND CLINICS, INC. | CONWAY, AR | Simmons Bank |
| $150,000–350,000 | NURSES NIGHT & DAY INC | Houston, TX | Simmons Bank |
| $150,000–350,000 | NURSES NIGHT & DAY, INC | HOUSTON, TX | Simmons Bank |
| $150,000–350,000 | NUZAR HOLDINGS, LLC | SPRING, TX | Simmons Bank |
| $150,000–350,000 | NWA GROUNDS SERVICES LLC | BENTONVILLE, AR | Simmons Bank |
| $350,000–1 million | O & O ENTERPRISES INC | ALPHARETTA, GA | Simmons Bank |
| $1–2 million | O&M TB, LLC | OKLAHOMA CITY, OK | Simmons Bank |
| $350,000–1 million | O'BRIEN & ASSOCIATES, INC. | DALLAS, TX | Simmons Bank |
| $350,000–1 million | OAK BROOK SCHOOL INC. | Allen, TX | Simmons Bank |
| $350,000–1 million | OAK BROOK SCHOOL, INC. | PLANO, TX | Simmons Bank |
| $350,000–1 million | OAK PARK HEALTHCARE LLC | SAINT LOUIS, MO | Simmons Bank |
| $350,000–1 million | OAKSTREET WHOLESALE NURSERY LLC | FAIRVIEW, TX | Simmons Bank |
| $150,000–350,000 | OBSTETRICS & GYNECOLOGY SPECIALISTS, INC. | OKLAHOMA CITY, OK | Simmons Bank |
| $150,000–350,000 | OFFICER MECHANICAL CONTRACTORS, INC. | COLUMBIA, MO | Simmons Bank |
| $150,000–350,000 | OKLAHOMA ABSTRACT AND TITLE COMPANY | STILLWATER, OK | Simmons Bank |
| $150,000–350,000 | OKLAHOMA COMMUNITY HEALTH CENTERS, INC. | OKLAHOMA CITY, OK | Simmons Bank |
| $150,000–350,000 | OKLAHOMA PAIN PHYSICIANS, P.C. | OKLAHOMA CITY, OK | Simmons Bank |
| $150,000–350,000 | OKLAHOMA STATE UNIVERSITY ALUMNI ASSOCIATION | STILLWATER, OK | Simmons Bank |
| $150,000–350,000 | OKLAHOMA STATE UNIVERSITY ALUMNI ASSOCIATION | Stillwater, OK | Simmons Bank |
| $350,000–1 million | OKLAHOMA SURGICAL GROUP PLLC | OKLAHOMA CITY, OK | Simmons Bank |
| $150,000–350,000 | OKLAHOMA SURGICAL GROUP PLLC | Oklahoma City, OK | Simmons Bank |
| $1–2 million | OKLAHOMA TIRE RECYCLERS LLC | BRISTOW, OK | Simmons Bank |
| $150,000–350,000 | OLIVE-HANLEY, INC. | SAINT LOUIS, MO | Simmons Bank |
| $150,000–350,000 | OLSON CONTRACTING, LLC | WESTMINSTER, CO | Simmons Bank |
| $350,000–1 million | OLSON RESTORATION II, LLC | WESTMINSTER, CO | Simmons Bank |
| $350,000–1 million | OLSON RESTORATION, LLC | WESTMINSTER, CO | Simmons Bank |
| $150,000–350,000 | OLYMPUS CONSTRUCTION INC | Jonesboro, AR | Simmons Bank |
| $150,000–350,000 | OLYMPUS CONSTRUCTION, INC. | JONESBORO, AR | Simmons Bank |
| $150,000–350,000 | ONARDEM VENTURES INC | San Antonio, TX | Simmons Bank |
| $150,000–350,000 | ONARDEM VENTURES INC. | SAN ANTONIO, TX | Simmons Bank |
| $350,000–1 million | ONCORE HEALTHCARE SOLUTIONS, LLC | GRAND PRAIRIE, TX | Simmons Bank |
| $150,000–350,000 | ONE SMILE DENTAL PLLC | BASTROP, TX | Simmons Bank |
| $1–2 million | ONE SOURCE BUILDING SERVICES | Plano, TX | Simmons Bank |
| $1–2 million | ONE SOURCE BUILDING SERVICES, INC. | PLANO, TX | Simmons Bank |
| $150,000–350,000 | OP65 LLC | Pearland, TX | Simmons Bank |
| $150,000–350,000 | OP65 LLC | FLOWER MOUND, TX | Simmons Bank |
| $150,000–350,000 | OPFER COMMUNICATIONS INC | SPRINGFIELD, MO | Simmons Bank |
| $150,000–350,000 | OPHTHALMOLOGY ASSOCIATES OF BENTON, P.L.L.C. | BENTON, AR | Simmons Bank |
| $150,000–350,000 | OPTIMAL PAIN AND WELLNESS PA. | Little Rock, AR | Simmons Bank |
| $150,000–350,000 | OPTIMAL PAIN AND WELLNESS PA. | FAYETTEVILLE, AR | Simmons Bank |
| $350,000–1 million | ORAL AND MAXILLOFACIAL ASSOCIATES, LLC | OKLAHOMA CITY, OK | Simmons Bank |
| $150,000–350,000 | OSBORN, CARREIRO & ASSOCIATES, INC. | LITTLE ROCK, AR | Simmons Bank |
| $1–2 million | OSC ENERGY LLC | WHITSETT, TX | Simmons Bank |
| $1–2 million | OSC ENERGY LLC | Whitsett, TX | Simmons Bank |
| $150,000–350,000 | OSSEUS FUSION SYSTEMS LLC | DALLAS, TX | Simmons Bank |
| $150,000–350,000 | OSU COWBOY DINING L.L.C. | Stillwater, OK | Simmons Bank |
| $150,000–350,000 | OSU COWBOY DINING, L.L.C. | Stillwater, OK | Simmons Bank |
| $150,000–350,000 | OSU COWBOY GOLF, LLC | STILLWATER, OK | Simmons Bank |
| $350,000–1 million | OUACHITA REGIONAL ANESTHESIA PLLC | HOT SPRINGS NATIONAL PARK, AR | Simmons Bank |
| $350,000–1 million | OUR LADY OF THE HOLY SOULS CATHOLIC CHURCH | LITTLE ROCK, AR | Simmons Bank |
| $150,000–350,000 | OWENS & BURNETT, INC. | HOUSTON, TX | Simmons Bank |
| $150,000–350,000 | OWENS AND BURNETT INC | Houston, TX | Simmons Bank |
| $150,000–350,000 | OWENS WORLD AIR INC | Grapevine, TX | Simmons Bank |
| $150,000–350,000 | OWENS WORLD AIR INCORPORATED | GRAPEVINE, TX | Simmons Bank |
| $150,000–350,000 | OZARK MOUNTAIN LEASING INC | Mountain View, MO | Simmons Bank |
| $150,000–350,000 | OZARK MOUNTAIN LEASING INC | MOUNTAIN VIEW, MO | Simmons Bank |
| $350,000–1 million | OZARK NURSING HOME INC | Ozark, AR | Simmons Bank |
| $350,000–1 million | OZARK NURSING HOME, INC. | OZARK, AR | Simmons Bank |
| $350,000–1 million | OZARKO TIRE CENTERS INC | WEST PLAINS, MO | Simmons Bank |
| $150,000–350,000 | OZARKO TIRE OF SPRINGFIELD INC | WEST PLAINS, MO | Simmons Bank |
| $150,000–350,000 | OZARKS ENVIRONMENTAL SERVICES INC | KIMBERLING CITY, MO | Simmons Bank |
| $150,000–350,000 | PABLO'S MEXICAN KITCHEN, LLC | RICHMOND, TX | Simmons Bank |
| $150,000–350,000 | PACESETTER ENERGY LLC | FLOWER MOUND, TX | Simmons Bank |
| $150,000–350,000 | PACKAGING FULFILLMENT INSOURCING, INC. | Memphis, TN | Simmons Bank |
| $150,000–350,000 | PAIN & INTERVENTIONAL RADIOLOGY SPECIALISTS | JONESBORO, AR | Simmons Bank |
| $150,000–350,000 | PAIN & INTERVENTIONAL RADIOLOGY SPECIALISTS P.A. | Jonesboro, AR | Simmons Bank |
| $150,000–350,000 | PALLET SERVICES LLC | MEMPHIS, TN | Simmons Bank |
| $1–2 million | PANTHEON CONSTRUCTION INC. | Sanger, TX | Simmons Bank |
| $150,000–350,000 | PARADINE, LLC | HOUSTON, TX | Simmons Bank |
| $150,000–350,000 | PARHAM LLC | Trenton, TN | Simmons Bank |
| $150,000–350,000 | PARHAM, LLC | TRENTON, TN | Simmons Bank |
| $350,000–1 million | PARK HILL COLLECTIONS LLC | Little Rock, AR | Simmons Bank |
| $350,000–1 million | PARK HILL COLLECTIONS, LLC | LITTLE ROCK, AR | Simmons Bank |
| $150,000–350,000 | PARKER AUTOMOTIVE RESTORATION, LLC | LITTLE ROCK, AR | Simmons Bank |
| $350,000–1 million | PARKER CADILLAC, INC. | LITTLE ROCK, AR | Simmons Bank |
| $350,000–1 million | PARKER IMPORTS, LLC | LITTLE ROCK, AR | Simmons Bank |
| $350,000–1 million | PARKER LUXURY AUTOMOBILES, INC. | LITTLE ROCK, AR | Simmons Bank |
| $150,000–350,000 | PARKLANE FAMILY DENTAL, PLLC | Fort Smith, AR | Simmons Bank |
| $150,000–350,000 | PASCO FOODS, INC. | SPICEWOOD, TX | Simmons Bank |
| $150,000–350,000 | PASTA GRILL INC | Conway, AR | Simmons Bank |
| $150,000–350,000 | PASTA GRILL OF RUSSELLVILLE INC. | Hot Springs, AR | Simmons Bank |
| $150,000–350,000 | PASTA GRILL, INC. | CONWAY, AR | Simmons Bank |
| $350,000–1 million | PATELLE INC | Arlington, TX | Simmons Bank |
| $150,000–350,000 | PATELLE INC | ARLINGTON, TX | Simmons Bank |
| $150,000–350,000 | PATHOLOGY ASSOCIATES OF TYLER, P.A. | TYLER, TX | Simmons Bank |
| $350,000–1 million | PATTON-TULLY MARINE, LLC | MEMPHIS, TN | Simmons Bank |
| $350,000–1 million | PAUL MICHAEL | Lake Village, AR | Simmons Bank |
| $350,000–1 million | PAUL MICHAEL COMPANY | LAKE VILLAGE, AR | Simmons Bank |
| $150,000–350,000 | PAVEMENT SOLUTIONS LLC | Saint Peters, MO | Simmons Bank |
| $150,000–350,000 | PAVEMENT SOLUTIONS LLC | SAINT PETERS, MO | Simmons Bank |
| $150,000–350,000 | PAYNE COUNTY YOUTH SERVIES, INC. | STILLWATER, OK | Simmons Bank |
| $150,000–350,000 | PC ADVISORS LLC | DALLAS, TX | Simmons Bank |
| $150,000–350,000 | PC ADVISORS LLC | Dallas, TX | Simmons Bank |
| $350,000–1 million | PC HARDWARE, LLC | LITTLE ROCK, AR | Simmons Bank |
| $350,000–1 million | PCA TECHNOLOGY SOLUTIONS INC | LITTLE ROCK, AR | Simmons Bank |
| $150,000–350,000 | PEACHPOP INC. | HOUSTON, TX | Simmons Bank |
| $150,000–350,000 | PECAN STREET, INC. | AUSTIN, TX | Simmons Bank |