| $350,000–1 million | KOCH MESA NURSERY DBA EUFLORIA FLOWERS | Nipomo, CA | Mechanics Bank |
| $150,000–350,000 | KOCH MESA NURSERY INC | NIPOMO, CA | Mechanics Bank |
| $1–2 million | KOCHERGEN FARMS COMPOSTING INC | Fresno, CA | Mechanics Bank |
| $350,000–1 million | KOCHERGEN FARMS COMPOSTING, INC. | Fresno, CA | Mechanics Bank |
| $350,000–1 million | KRISHNAMURTI FOUNDATION OF AMERICA | OJAI, CA | Mechanics Bank |
| $350,000–1 million | KUHN HAY, INC. | EL CENTRO, CA | Mechanics Bank |
| $350,000–1 million | KUMAR HOTELS, INC. | Red Bluff, CA | Mechanics Bank |
| $150,000–350,000 | KUMAR HOTELS, INC. | WILLOWS, CA | Mechanics Bank |
| $150,000–350,000 | KW CURTIS ENTERPRISES INC | Templeton, CA | Mechanics Bank |
| $150,000–350,000 | KW CURTIS ENTERPRISES, INC. | PASO ROBLES, CA | Mechanics Bank |
| $350,000–1 million | L & G FARMING | SANTA MARIA, CA | Mechanics Bank |
| $150,000–350,000 | L&L INTERIORS INC. | Fresno, CA | Mechanics Bank |
| $150,000–350,000 | L&L INTERIORS, INC. | FRESNO, CA | Mechanics Bank |
| $1–2 million | L. P. MCNEAR BRICK CO., INC. | SAN RAFAEL, CA | Mechanics Bank |
| $1–2 million | L.J. KRUSE CO. | Berkeley, CA | Mechanics Bank |
| $1–2 million | L.J. KRUSE CO. | BERKELEY, CA | Mechanics Bank |
| $350,000–1 million | LA CHEIM SCHOOL, INC | EL SOBRANTE, CA | Mechanics Bank |
| $1–2 million | LA CUMBRE AG LABOR | Delano, CA | Mechanics Bank |
| $150,000–350,000 | LA NEVERIA LLC | SANTA ROSA, CA | Mechanics Bank |
| $150,000–350,000 | LA NOTE RESTAURANT | Berkeley, CA | Mechanics Bank |
| $150,000–350,000 | LA STRADA INC. | San Pablo, CA | Mechanics Bank |
| $150,000–350,000 | LA STRADA RESTAURANT | SAN PABLO, CA | Mechanics Bank |
| $1–2 million | LABRUCHERIE PRODUCE | EL CENTRO, CA | Mechanics Bank |
| $350,000–1 million | LAIRD FAMILY ESTATE LLC | NAPA, CA | Mechanics Bank |
| $150,000–350,000 | LAKESIDE DAIRY | TULARE, CA | Mechanics Bank |
| $150,000–350,000 | LALEH SHABAN INC. | SAN LUIS OBISPO, CA | Mechanics Bank |
| $150,000–350,000 | LANCE REEVES | Brawley, CA | Mechanics Bank |
| $150,000–350,000 | LANCE REEVES FARMS | Brawley, CA | Mechanics Bank |
| $150,000–350,000 | LANDMARK CONSULTANTS, INC. | El Centro, CA | Mechanics Bank |
| $150,000–350,000 | LARRY M. CHO M.D. INC. | Bakersfield, CA | Mechanics Bank |
| $150,000–350,000 | LARRY M. CHO, M.D., INC. | BAKERSFIELD, CA | Mechanics Bank |
| $150,000–350,000 | LASALLE ELECTRIC, INC. | THOUSAND PALMS, CA | Mechanics Bank |
| $1–2 million | LATINO FARM LABOR SERVICE | VISALIA, CA | Mechanics Bank |
| $350,000–1 million | LB HARVESTING, INC. | Coachella, CA | Mechanics Bank |
| $350,000–1 million | LC FARM SERVICE INC | SANTA MARIA, CA | Mechanics Bank |
| $150,000–350,000 | LE POIL INC. | EMERYVILLE, CA | Mechanics Bank |
| $150,000–350,000 | LEHMAN'S MANUFACTURING CO INC | Fresno, CA | Mechanics Bank |
| $150,000–350,000 | LENZ INC | RICHMOND, CA | Mechanics Bank |
| $1–2 million | LEO TIDWELL EXCAVATING CORPORATION | PASO ROBLES, CA | Mechanics Bank |
| $1–2 million | LEO TIDWELL EXCAVATING CORPORATION | Paso Robles, CA | Mechanics Bank |
| $350,000–1 million | LEON' LANDSCAPING & TREE SERVICE, INC. | INDIO, CA | Mechanics Bank |
| $350,000–1 million | LEON'S LANDSCAPING AND TREE SERVICE INC. | Indio, CA | Mechanics Bank |
| $350,000–1 million | LETSGOLEARN, INC. | KENSINGTON, CA | Mechanics Bank |
| $150,000–350,000 | LEXUS FARM LABOR CONTRACTOR | Bakersfield, CA | Mechanics Bank |
| $150,000–350,000 | LHAS LLC | Petaluma, CA | Mechanics Bank |
| $150,000–350,000 | LHAS LLC | SANTA ROSA, CA | Mechanics Bank |
| $350,000–1 million | LIDCO, INC. | BRAWLEY, CA | Mechanics Bank |
| $350,000–1 million | LIFE OPTIONS, VOCATIONAL AND RESOURCE CENTER | LOMPOC, CA | Mechanics Bank |
| $150,000–350,000 | LIMBERG EYE SURGERY A MEDICAL CORPORATION | San Luis Obispo, CA | Mechanics Bank |
| $150,000–350,000 | LIMBERG EYE SURGERY, INC. | San Luis Obispo, CA | Mechanics Bank |
| $150,000–350,000 | LIMITED MOTORS, INC. | BAKERSFIELD, CA | Mechanics Bank |
| $150,000–350,000 | LIMITED MOTORS, INC. | Bakersfield, CA | Mechanics Bank |
| $150,000–350,000 | LINCOLN STREET INC | San Luis Obispo, CA | Mechanics Bank |
| $350,000–1 million | LINCOLN SUMMERSET ALMC LLC | Roseville, CA | Mechanics Bank |
| $350,000–1 million | LINCOLN SUMMERSET ALMC LLC | ROSEVILLE, CA | Mechanics Bank |
| $350,000–1 million | LINDSAY WILDLIFE MUSEUM | Walnut Creek, CA | Mechanics Bank |
| $150,000–350,000 | LINDSAY WILDLIFE MUSEUM | WALNUT CREEK, CA | Mechanics Bank |
| $350,000–1 million | LINTARO LLC | San Francisco, CA | Mechanics Bank |
| $150,000–350,000 | LINTARO LLC | SAN FRANCISCO, CA | Mechanics Bank |
| $150,000–350,000 | LITTLE BUDDHA LLC | Pacific Palisades, CA | Mechanics Bank |
| $2–5 million | LIVINGSTON MEMORIAL VISITING NURSE ASSOCIATION | Ventura, CA | Mechanics Bank |
| $1–2 million | LLYOD APPLING, INC. | SALINAS, CA | Mechanics Bank |
| $350,000–1 million | LOCUS TECHNOLOGIES | Mountain View, CA | Mechanics Bank |
| $350,000–1 million | LOCUS TECHNOLOGIES | MOUNTAIN VIEW, CA | Mechanics Bank |
| $350,000–1 million | LOGIN VSI INC. | WOBURN, MA | Mechanics Bank |
| $350,000–1 million | LOMPOC ARTIFICIAL KIDNEY CENTER LLC | Lompoc, CA | Mechanics Bank |
| $150,000–350,000 | LONGBRANCH BERKELEY LLC | Berkeley, CA | Mechanics Bank |
| $150,000–350,000 | LONGBRANCH BERKELEY LLC | Berkeley, CA | Mechanics Bank |
| $350,000–1 million | LOS ALTOS FARMS, LLC | AROMAS, CA | Mechanics Bank |
| $150,000–350,000 | LOS GATOS DAY SPAS INC | Los Gatos, CA | Mechanics Bank |
| $150,000–350,000 | LOS OSOS AUTO BODY INC. | Los Osos, CA | Mechanics Bank |
| $150,000–350,000 | LOS OSOS AUTO BODY, INC | LOS OSOS, CA | Mechanics Bank |
| $150,000–350,000 | LOS PADRES COUNCIL BOY SCOUTS OF AMERICA | Santa Barbara, CA | Mechanics Bank |
| $150,000–350,000 | LOS PADRES COUNCIL, BSA | MORRO BAY, CA | Mechanics Bank |
| $350,000–1 million | LOYALTY FARM LABOR CONTRACTOR, INC. | BAKERSFIELD, CA | Mechanics Bank |
| $150,000–350,000 | LOYALTY SECURITY GROUP INC | ALBANY, CA | Mechanics Bank |
| $1–2 million | LT FOODS AMERICAS, INC | Cypress, CA | Mechanics Bank |
| $1–2 million | LT NAPA PARTNERS LLC | Napa, CA | Mechanics Bank |
| $350,000–1 million | LT NAPA PARTNERS LLC | NAPA, CA | Mechanics Bank |
| $150,000–350,000 | LU-AR DAIRY | HANFORD, CA | Mechanics Bank |
| $150,000–350,000 | LUMEN CHRISTI ACADEMIES | Richmond, CA | Mechanics Bank |
| $150,000–350,000 | LYNCH MARKS, LLC | BERKELEY, CA | Mechanics Bank |
| $350,000–1 million | LYNN SAFETY INC | Concord, CA | Mechanics Bank |
| $350,000–1 million | LYNN SAFETY INC | PLEASANT HILL, CA | Mechanics Bank |
| $150,000–350,000 | LYONS ORTHODONTICS INC | El Dorado Hills, CA | Mechanics Bank |
| $150,000–350,000 | LYONS ORTHODONTICS, INC | EL DORADO HILLS, CA | Mechanics Bank |
| $350,000–1 million | M & A FARMING, INC. | Santa Maria, CA | Mechanics Bank |
| $350,000–1 million | M MAINTENANCE CONSTRUCTION CLEAN UP & GRADING INC | Oxnard, CA | Mechanics Bank |
| $350,000–1 million | M-MIG CONSTRUCTION INC. | Atwater, CA | Mechanics Bank |
| $350,000–1 million | M-MIG CONSTRUCTION, INC. | ATWATER, CA | Mechanics Bank |
| $350,000–1 million | M.F.M. SEAFOOD | Berkeley, CA | Mechanics Bank |
| $350,000–1 million | M.F.M.SEAFOOD | BERKELEY, CA | Mechanics Bank |
| $150,000–350,000 | M.G. SANTOS INC. | LOS BANOS, CA | Mechanics Bank |
| $150,000–350,000 | MAC AG | Santa Maria, CA | Mechanics Bank |
| $150,000–350,000 | MACHINE VANTAGE | BERKELEY, CA | Mechanics Bank |
| $150,000–350,000 | MACHINEVANTAGE INC | Berkeley, CA | Mechanics Bank |
| $150,000–350,000 | MACKEY & MACKEY INSURANCE | HANFORD, CA | Mechanics Bank |
| $350,000–1 million | MADDOX DAIRY | RIVERDALE, CA | Mechanics Bank |
| $350,000–1 million | MADDOX FARMS | RIVERDALE, CA | Mechanics Bank |
| $2–5 million | MAINAS FARMS, LLC | HOLTVILLE, CA | Mechanics Bank |