| $150,000–350,000 | INDUSTRIAL SOLUTIONS & INNOVATION, LLC | ALVIN, TX | Third Coast Bank |
| $150,000–350,000 | INDUSTRIAL SUPPLY & RENTAL LLC. | PORT ARTHUR, TX | Third Coast Bank |
| $150,000–350,000 | INDUSTRIAL SUPPLY & RENTAL LLC. | Port Arthur, TX | Third Coast Bank |
| $1–2 million | INDUSTRIAL THERMAL SERVICES, LLC | NEDERLAND, TX | Third Coast Bank |
| $350,000–1 million | INFINITY SYSTEMS INC | Houston, TX | Third Coast Bank |
| $350,000–1 million | INFINITY SYSTEMS INC | HOUSTON, TX | Third Coast Bank |
| $150,000–350,000 | INNOVA STAFFING & MANAGEMENT, INC | Pearland, TX | Third Coast Bank |
| $150,000–350,000 | INNOVATIVE VENTILATION SYSTEMS, INC. | Beaumont, TX | Third Coast Bank |
| $350,000–1 million | INTEGRATED TECHNOLOGY AND SECURITY, LLC | LUMBERTON, TX | Third Coast Bank |
| $150,000–350,000 | INTEGRITY AUTOMOTIVE SERVICES, LLC | Castle Rock, CO | Third Coast Bank |
| $150,000–350,000 | INTERNATIONAL INTELLECTUAL PROPERTY LAW GROUP PLLC | Houston, TX | Third Coast Bank |
| $150,000–350,000 | INTERNATIONAL INTELLECTUAL PROPERTY LAW GROUP, PLLC | HOUSTON, TX | Third Coast Bank |
| $150,000–350,000 | IOT-EQ LLC | Spring, TX | Third Coast Bank |
| $150,000–350,000 | IPS PUMP SERVICES INC | HOUSTON, TX | Third Coast Bank |
| $150,000–350,000 | IPSUM CREATIVE LLC | Tempe, AZ | Third Coast Bank |
| $150,000–350,000 | IPSUM CREATIVE LLC | COPPELL, TX | Third Coast Bank |
| $150,000–350,000 | IRISH RIVIERA II LLC | Spring Lake, NJ | Third Coast Bank |
| $150,000–350,000 | IRONMAN CONSTRUCTION LLC | Lumberton, TX | Third Coast Bank |
| $150,000–350,000 | IRONMAN CONSTRUCTION, LLC | Lumberton, TX | Third Coast Bank |
| $150,000–350,000 | ISLAND PEAK GROUP LLC | Dallas, TX | Third Coast Bank |
| $150,000–350,000 | IVY KIDS LLC | Pearland, TX | Third Coast Bank |
| $150,000–350,000 | IVY KIDS LLC | Pearland, TX | Third Coast Bank |
| $150,000–350,000 | J & E WELDING INC. | Beaumont, TX | Third Coast Bank |
| $150,000–350,000 | J & E WELDING, INC. | Beaumont, TX | Third Coast Bank |
| $150,000–350,000 | J & K, INC. | CORPUS CHRISTI, TX | Third Coast Bank |
| $150,000–350,000 | J UNDERGROUND UTILITY LLC | HOUSTON, TX | Third Coast Bank |
| $150,000–350,000 | J&S CABRERA PLLC | Humble, TX | Third Coast Bank |
| $150,000–350,000 | J&S CABRERA PLLC | Humble, TX | Third Coast Bank |
| $150,000–350,000 | J-3 METALS RECYCLING CENTER LLC | VIDOR, TX | Third Coast Bank |
| $1–2 million | J. ROLLINS CONSTRUCTION INC. | Dayton, TX | Third Coast Bank |
| $2–5 million | J. ROLLINS CONSTRUCTION, INC. | DAYTON, TX | Third Coast Bank |
| $150,000–350,000 | J. SMALL INVESTMENTS L.C. | Dallas, TX | Third Coast Bank |
| $150,000–350,000 | J. SMALL INVESTMENTS, L.C. | DALLAS, TX | Third Coast Bank |
| $150,000–350,000 | J.W. GARRETT & SON INC. | Beaumont, TX | Third Coast Bank |
| $150,000–350,000 | J.W. GARRETT & SON, INC. | BEAUMONT, TX | Third Coast Bank |
| $150,000–350,000 | JACK AND JULES 98, LLC | Friendswood, TX | Third Coast Bank |
| $350,000–1 million | JACKO LOGISTICS, LLC | Vancouver, WA | Third Coast Bank |
| $150,000–350,000 | JACOM ENTERPRISES LLC | Allen, TX | Third Coast Bank |
| $350,000–1 million | JAGUAR FUELING SERVICES LLC | Humble, TX | Third Coast Bank |
| $350,000–1 million | JAGUAR FUELING SERVICES, LLC | Humble, TX | Third Coast Bank |
| $150,000–350,000 | JARROD SMITH | Angleton, TX | Third Coast Bank |
| $2–5 million | JEN-TEX DELIS INC. | BEAUMONT, TX | Third Coast Bank |
| $1–2 million | JEN-TEX DELIS INC. | Beaumont, TX | Third Coast Bank |
| $150,000–350,000 | JEPSON-BLUHM, LLC. | SILSBEE, TX | Third Coast Bank |
| $350,000–1 million | JIMMY CHANGAS #2 INC. | LA PORTE, TX | Third Coast Bank |
| $350,000–1 million | JIMMY CHANGAS #3 INC. | LA PORTE, TX | Third Coast Bank |
| $350,000–1 million | JIMMY CHANGAS #4 INC. | LA PORTE, TX | Third Coast Bank |
| $350,000–1 million | JIMMY CHANGAS INC. | LA PORTE, TX | Third Coast Bank |
| $150,000–350,000 | JJ&D CONSTRUCTION, LLC | GROVES, TX | Third Coast Bank |
| $350,000–1 million | JK RADIANT LP | Humble, TX | Third Coast Bank |
| $350,000–1 million | JK RADIANT, LP | HUMBLE, TX | Third Coast Bank |
| $350,000–1 million | JOE & THE JUICE A/S | New York, NY | Third Coast Bank |
| $2–5 million | JOE & THE JUICE MANAGEMENT LLC | NEW YORK, NY | Third Coast Bank |
| $350,000–1 million | JOE & THE JUICE US HOLDINGS INC | NEW YORK, NY | Third Coast Bank |
| $150,000–350,000 | JOE M. RICHARDS, DDS, PC | Humble, TX | Third Coast Bank |
| $150,000–350,000 | JOHN K & ASSOCIATES MANAGEMENT PLLC | Houston, TX | Third Coast Bank |
| $150,000–350,000 | JOHN K & ASSOCIATES MANAGEMENT PLLC | Houston, TX | Third Coast Bank |
| $150,000–350,000 | JOHNNY'S TOWING & RECOVERY, INC. | Port Arthur, TX | Third Coast Bank |
| $150,000–350,000 | JOINER ARCHITECTS INC. | Kingwood, TX | Third Coast Bank |
| $350,000–1 million | JOINER ARCHITECTS, INC. | KINGWOOD, TX | Third Coast Bank |
| $2–5 million | JOSLIN CONSTRUCTION TEXAS, LLC | KINGWOOD, TX | Third Coast Bank |
| $150,000–350,000 | JP EWC ENTERPRISES LLC | Horsham, PA | Third Coast Bank |
| $150,000–350,000 | JP EWC ENTERPRISES LLC | Houston, TX | Third Coast Bank |
| $150,000–350,000 | JR D CONSTRUCTION | Sugar Land, TX | Third Coast Bank |
| $150,000–350,000 | JRW LOGISTICS INC. | Buna, TX | Third Coast Bank |
| $150,000–350,000 | JRW LOGISTICS, INC. | Buna, TX | Third Coast Bank |
| $150,000–350,000 | JULIE ROGERS 'GIFT OF LIFE' FREE MAMMOGRAM PROGRAM | Beaumont, TX | Third Coast Bank |
| $350,000–1 million | K & K CONSTRUCTION, INC. | WILLIS, TX | Third Coast Bank |
| $350,000–1 million | K.A.T. EXCAVATION & CONSTRUCTION INC. | SOUR LAKE, TX | Third Coast Bank |
| $150,000–350,000 | KABCO INVESTMENTS. INC. | Lumberton, TX | Third Coast Bank |
| $150,000–350,000 | KAL AUTOMOTIVE, INC. | Fort Worth, TX | Third Coast Bank |
| $150,000–350,000 | KATY IVY KIDS INC | Richmond, TX | Third Coast Bank |
| $150,000–350,000 | KATY IVY KIDS INC | Richmond, TX | Third Coast Bank |
| $150,000–350,000 | KATY MONTESSORI LLC | Katy, TX | Third Coast Bank |
| $150,000–350,000 | KATY MONTESSORI LLC | Katy, TX | Third Coast Bank |
| $150,000–350,000 | KATY'S EARLY CHILDHOOD ENRICHMENT CENTER, INC. | KATY, TX | Third Coast Bank |
| $150,000–350,000 | KATYS EARLY CHILDHOOD ENRICHMENT CENTER INC. | Katy, TX | Third Coast Bank |
| $150,000–350,000 | KELLY RESTAURANT GROUP, LLC | ALPINE, CA | Third Coast Bank |
| $350,000–1 million | KENNEBREW & BRITTON DEVELOPMENT GROUP LLC | Pearland, TX | Third Coast Bank |
| $1–2 million | KENNEDY FABRICATING LLC | Splendora, TX | Third Coast Bank |
| $150,000–350,000 | KEVIN STARKS | Houston, TX | Third Coast Bank |
| $150,000–350,000 | KINGDOM MANUFACTURING LLC | HOUSTON, TX | Third Coast Bank |
| $150,000–350,000 | KINGWOOD AIR CONDITIONING & HEATING INC. | Kingwood, TX | Third Coast Bank |
| $150,000–350,000 | KINGWOOD AIR CONDITIONING & HEATING, INC. | KINGWOOD, TX | Third Coast Bank |
| $350,000–1 million | KINSEL AUTO GROUP INC | Beaumont, TX | Third Coast Bank |
| $350,000–1 million | KIRBY LIMESTONE, LLC | BAYTOWN, TX | Third Coast Bank |
| $150,000–350,000 | KMK INDUSTRIAL LLC | LEAGUE CITY, TX | Third Coast Bank |
| $150,000–350,000 | KMK PUMP LLC | LEAGUE CITY, TX | Third Coast Bank |
| $150,000–350,000 | KNOWLEDGE INVESTMENTS INC | Wake Forest, NC | Third Coast Bank |
| $150,000–350,000 | KRASAMO INC. | PLANO, TX | Third Coast Bank |
| $150,000–350,000 | KRCH REALTY, LLC | RENO, NV | Third Coast Bank |
| $2–5 million | KRG BHTT, LLC | SAN DIEGO, CA | Third Coast Bank |
| $150,000–350,000 | KRG GRADY'S LLC | SAN DIEGO, CA | Third Coast Bank |
| $1–2 million | KRG JCS LLC | SAN DIEGO, CA | Third Coast Bank |
| $2–5 million | KRG KINGS LLC | SAN DIEGO, CA | Third Coast Bank |
| $150,000–350,000 | KTMC INDUSTRIAL SERVICES LLC | BEAUMONT, TX | Third Coast Bank |
| $150,000–350,000 | KWIK BROADWAY, LLC | PEARLAND, TX | Third Coast Bank |
| $150,000–350,000 | KYLE ANGELLE | Pearland, TX | Third Coast Bank |
| $1–2 million | L&C SAFETY INC. | Odessa, TX | Third Coast Bank |
| $2–5 million | L&C SAFETY, INC. | ODESSA, TX | Third Coast Bank |