| $350,000–1 million | LAMBERTS DOWNTOWN BARBEQUE | AUSTIN, TX | Prosperity Bank |
| $150,000–350,000 | LAMINACK, PIRTLE AND MARTINES, LLP | HOUSTON, TX | Prosperity Bank |
| $150,000–350,000 | LANDEV ENGINEERING, INC | HOUSTON, TX | Prosperity Bank |
| $350,000–1 million | LANDMARK EQUIPMENT, INC. | IRVING, TX | Prosperity Bank |
| $150,000–350,000 | LANDSCAPE EXPRESSIONS CO. | MELISSA, TX | Prosperity Bank |
| $1–2 million | LARRY YOUNG PAVING, INC | BRYAN, TX | Prosperity Bank |
| $150,000–350,000 | LARSON PLUMBING & UTILITY CO | CORPUS CHRISTI, TX | Prosperity Bank |
| $150,000–350,000 | LARY ARCHER & ASSOCIATES, INC. | PALO PINTO, TX | Prosperity Bank |
| $150,000–350,000 | LAUDADIO POLYMERS, INC. | KATY, TX | Prosperity Bank |
| $350,000–1 million | LAUGER COMPANIES, INC. | VICTORIA, TX | Prosperity Bank |
| $150,000–350,000 | LAUGER FAMILY ENTERPRISES LTD | VICTORIA, TX | Prosperity Bank |
| $150,000–350,000 | LAURA BRITT DESIGN, LLC | AUSTIN, TX | Prosperity Bank |
| $150,000–350,000 | LAWN PATROL SERVICE INC | FORT WORTH, TX | Prosperity Bank |
| $150,000–350,000 | LAWYERS RESOURSE & LITIGATION SUPPORT SERVICES, LLC | DALLAS, TX | Prosperity Bank |
| $150,000–350,000 | LBSC, INC | VICTORIA, TX | Prosperity Bank |
| $2–5 million | LDF SALES & DISTRIBUTING, INC. | WICHITA, KS | Prosperity Bank |
| $350,000–1 million | LEARNING FORWARD | RICHARDSON, TX | Prosperity Bank |
| $150,000–350,000 | LED INSPIRATIONS LLC | CYPRESS, TX | Prosperity Bank |
| $150,000–350,000 | LEE COUNTY PETROLEUM, INC | GIDDINGS, TX | Prosperity Bank |
| $150,000–350,000 | LEGACYTEXAS TITLE CO | DALLAS, TX | Prosperity Bank |
| $150,000–350,000 | LEGEND 94 HOSPITALITY LLC | DALLAS, TX | Prosperity Bank |
| $1–2 million | LEM CONSTRUCTION COMPANY INC. | HOUSTON, TX | Prosperity Bank |
| $350,000–1 million | LENOIR WATER TRANSFER, INC. | MIDLAND, TX | Prosperity Bank |
| $350,000–1 million | LEON'S FINE FOODS, INC. | MCKINNEY, TX | Prosperity Bank |
| $1–2 million | LESTER CONTRACTING INC. | PORT LAVACA, TX | Prosperity Bank |
| $150,000–350,000 | LEVY ARCHITECTS PLLC | AUSTIN, TX | Prosperity Bank |
| $150,000–350,000 | LEWIS & PARTNERS, LLC | HOUSTON, TX | Prosperity Bank |
| $350,000–1 million | LEWIS CASING CREWS INC | ODESSA, TX | Prosperity Bank |
| $150,000–350,000 | LEX CELL-TX LLC | DALLAS, TX | Prosperity Bank |
| $150,000–350,000 | LGL ANIMAL CARE PRODUCTS | COLLEGE STATION, TX | Prosperity Bank |
| $150,000–350,000 | LGL ECOLOGICAL RESEARCH ASSOCIATES INC | BRYAN, TX | Prosperity Bank |
| $1–2 million | LIAISON RESOURCES LP | AUSTIN, TX | Prosperity Bank |
| $350,000–1 million | LIBERTY AUTO SALES INC. | HOUSTON, TX | Prosperity Bank |
| $350,000–1 million | LIBERTY COUNTY HOSPITAL DISTRICT NO. 1 | LIBERTY, TX | Prosperity Bank |
| $350,000–1 million | LIBERTY MATERIALS TRANSPORTATION, INC. | CONROE, TX | Prosperity Bank |
| $1–2 million | LIBERTY MATERIALS, INC. | CONROE, TX | Prosperity Bank |
| $2–5 million | LILLY ENTERPRISES, INC. | ATHENS, TX | Prosperity Bank |
| $150,000–350,000 | LILYRAIN JEWELRY LLC | HOUSTON, TX | Prosperity Bank |
| $150,000–350,000 | LIN INDRIO LLC | HOSUTON, TX | Prosperity Bank |
| $150,000–350,000 | LINDY'S RESTAURANT INC | DALLAS, TX | Prosperity Bank |
| $150,000–350,000 | LISA D. HITCHENS, M.D., P.A | CYPRESS, TX | Prosperity Bank |
| $350,000–1 million | LISA'S CHICKEN & SEAFOOD LLC | FORT WORTH, TX | Prosperity Bank |
| $150,000–350,000 | LIVE OAK CORRAL, LLC | NEW BRAUNFELS, TX | Prosperity Bank |
| $150,000–350,000 | LIVING WORD EVANGELICAL LUTHERAN CHURCH OF KATY TEXAS | KATY, TX | Prosperity Bank |
| $350,000–1 million | LLOPIS USA, LLC | EDMOND, OK | Prosperity Bank |
| $150,000–350,000 | LMC COLLISION CENTER LLC | SPRING, TX | Prosperity Bank |
| $350,000–1 million | LONE STAR AIR SYSTEMS, LTD. | CYPRESS, TX | Prosperity Bank |
| $350,000–1 million | LONE STAR FURNISHINGS, LLC | CARROLLTON, TX | Prosperity Bank |
| $150,000–350,000 | LONE STAR LABORATORY GROUP LLC | COLLEGE STATION, TX | Prosperity Bank |
| $150,000–350,000 | LONE STAR LOGISTICS AND DELIVERY LLC | FRISCO, TX | Prosperity Bank |
| $350,000–1 million | LONE STAR RAILROAD CONTRACTORS, INC. | ENNIS, TX | Prosperity Bank |
| $150,000–350,000 | LONE STAR TRAILER SERVICES, INC. | HASLET, TX | Prosperity Bank |
| $150,000–350,000 | LONGHORN PROPANE LP | CANYON LAKE, TX | Prosperity Bank |
| $150,000–350,000 | LOPEZ TANK LINING LLC | DAYTON, TX | Prosperity Bank |
| $150,000–350,000 | LOS CUCOS MEXICAN CAFE III INC. | KATY, TX | Prosperity Bank |
| $350,000–1 million | LOS CUCOS MEXICAN CAFE INC. | HOUSTON, TX | Prosperity Bank |
| $350,000–1 million | LOS CUCOS MEXICAN CAFE XIII, INC. | KATY, TX | Prosperity Bank |
| $150,000–350,000 | LOS CUCOS MEXICAN CAFE XXII, INC. | PEARLAND, TX | Prosperity Bank |
| $1–2 million | LOUIS V LEPAK TRUCKING CO INC | OKLAHOMA CITY, OK | Prosperity Bank |
| $150,000–350,000 | LUBBOCK ABSTRACT & TITLE COMPANY | LUBBOCK, TX | Prosperity Bank |
| $2–5 million | LUBBOCK CHRISTIAN UNIVERSITY | LUBBOCK, TX | Prosperity Bank |
| $350,000–1 million | LUBBOCK DIAGNOSTIC RADIOLOGY LLP | LUBBOCK, TX | Prosperity Bank |
| $150,000–350,000 | LUBBOCK KIDNEY AND BLOOD PRESSURE CLINIC | LUBBOCK, TX | Prosperity Bank |
| $2–5 million | LUBBOCK REGIONAL MENTAL HEALTH MENTAL RETARDATION CENTER | LUBBOCK, TX | Prosperity Bank |
| $150,000–350,000 | LUPHER, LLC | HOUSTON, TX | Prosperity Bank |
| $150,000–350,000 | LUTHERAN OUTDOORS MINISTRY OF TEXAS, INC. | LA GRANGE, TX | Prosperity Bank |
| $350,000–1 million | LUTHERAN SENIOR CITIZENS INC | OKLAHOMA CITY, OK | Prosperity Bank |
| $350,000–1 million | LWPB, PC | OKLAHOMA CITY, OK | Prosperity Bank |
| $150,000–350,000 | M & B TOOLS AND EQUIPMENT, INC. | PASADENA, TX | Prosperity Bank |
| $150,000–350,000 | M & M DITCHING, INC. | OKLAHOMA CITY, OK | Prosperity Bank |
| $150,000–350,000 | M AND D FOUNDATION DRILLING INDUSTRIES, | WALLER, TX | Prosperity Bank |
| $350,000–1 million | M AND M ERECTORS, INC | HOUSTON, TX | Prosperity Bank |
| $150,000–350,000 | M WALKER FARMS LTD | CROSBY, TX | Prosperity Bank |
| $350,000–1 million | M&M LUMBER COMPANY | TULSA, OK | Prosperity Bank |
| $350,000–1 million | M&K HUNTER ENTERPRISES, LLC | HUNTSVILLE, TX | Prosperity Bank |
| $150,000–350,000 | M. HASTY CONSTRUCTION CO. INC | PLAINVIEW, TX | Prosperity Bank |
| $150,000–350,000 | M.B.M.I. GLOBAL, L.L.C. | HOUSTON, TX | Prosperity Bank |
| $150,000–350,000 | M2G VENTURES LLC | FORT WORTH, TX | Prosperity Bank |
| $150,000–350,000 | MADNESS GAMES & COMICS | PLANO, TX | Prosperity Bank |
| $150,000–350,000 | MAGNETIC TECHNOLOGY, INC. | MCKINNEY, TX | Prosperity Bank |
| $150,000–350,000 | MAGNOLIA PARENT PLLC | DALLAS, TX | Prosperity Bank |
| $2–5 million | MAGNUM SERVICES, LP | EDNA, TX | Prosperity Bank |
| $150,000–350,000 | MAGUIRE RESTAURANT HOLDINGS, LP | DALLAS, TX | Prosperity Bank |
| $150,000–350,000 | MAJELLA CARES | AUSTIN, TX | Prosperity Bank |
| $150,000–350,000 | MAJESTIC FISHING AND RENTAL, LLC | MIDLAND, TX | Prosperity Bank |
| $350,000–1 million | MAJESTIC PETROLEUM SERVICES LLC | MIDLAND, TX | Prosperity Bank |
| $350,000–1 million | MANNER POLYMERS, INC. | MCKINNEY, TX | Prosperity Bank |
| $350,000–1 million | MARC AMSILI DDS, PA | AUSTIN, TX | Prosperity Bank |
| $350,000–1 million | MARCHAL/STEVENSON ELEVATOR COMPANY INC | HOUSTON, TX | Prosperity Bank |
| $150,000–350,000 | MARIA CERDA RICHBOURG | PINEHURST, TX | Prosperity Bank |
| $150,000–350,000 | MARIAN MOSS ENTERPRISES INC | LUBBOCK, TX | Prosperity Bank |
| $150,000–350,000 | MARINE SOLUTIONS INC | ARANSAS PASS, TX | Prosperity Bank |
| $150,000–350,000 | MARTIN TAILORS INC. | HOUSTON, TX | Prosperity Bank |
| $150,000–350,000 | MAS AMIN 1409 INC | HOUSTON, TX | Prosperity Bank |
| $150,000–350,000 | MAS AMIN 1478 INC. | HOUSTON, TX | Prosperity Bank |
| $150,000–350,000 | MAS AMIN 1483 INC. | SUGAR LAND, TX | Prosperity Bank |
| $350,000–1 million | MASON, WARNER & COMPANY, P.C. | LUBBOCK, TX | Prosperity Bank |
| $150,000–350,000 | MASON-DALLAS, INC. | EULESS, TX | Prosperity Bank |
| $150,000–350,000 | MASYER CORP | HOUSTON, TX | Prosperity Bank |
| $2–5 million | MATAGORDA COUNTY HOSPITAL DISTRICT | BAY CITY, TX | Prosperity Bank |