| $350,000–1 million | LAUREN YOUNG TIRE CENTER, INC. | ROSEBURG, OR | Umpqua Bank |
| $350,000–1 million | LAUZON CONTRACTING LLC | Clackamas, OR | Umpqua Bank |
| $350,000–1 million | LAUZON CONTRACTING, LLC | CLACKAMAS, OR | Umpqua Bank |
| $2–5 million | LAVISH ROOTS INC | Burien, WA | Umpqua Bank |
| $350,000–1 million | LAW & MEDIATION FIRM OF KLUECK & HOPPES APC | La Mesa, CA | Umpqua Bank |
| $350,000–1 million | LAW & MEDIATION FIRM OF KLUECK & HOPPES, APC | LA MESA, CA | Umpqua Bank |
| $150,000–350,000 | LAW DAWGS INC | SEATTLE, WA | Umpqua Bank |
| $150,000–350,000 | LAW DAWGS INC | Mukilteo, WA | Umpqua Bank |
| $150,000–350,000 | LAW OFFICES OF PATRICK G CADIZ | Hillsboro, OR | Umpqua Bank |
| $150,000–350,000 | LAWRENCE R. HOVEY DMD MS PC | Portland, OR | Umpqua Bank |
| $150,000–350,000 | LAWRENCE R. HOVEY DMD, MS, PC | PORTLAND, OR | Umpqua Bank |
| $150,000–350,000 | LAWRY'S RESTAURANTS II INC. | Pasadena, CA | Umpqua Bank |
| $150,000–350,000 | LAWRY'S RESTAURANTS II, INC. | PASADENA, CA | Umpqua Bank |
| $2–5 million | LAWRY'S RESTAURANTS INC. | Pasadena, CA | Umpqua Bank |
| $350,000–1 million | LAWRY'S RESTAURANTS OF NEVADA INC. | Pasadena, CA | Umpqua Bank |
| $350,000–1 million | LAWRY'S RESTAURANTS OF NEVADA, INC. | PASADENA, CA | Umpqua Bank |
| $350,000–1 million | LAWRY'S RESTAURANTS OF TEXAS INC. | Pasadena, CA | Umpqua Bank |
| $350,000–1 million | LAWRY'S RESTAURANTS OF TEXAS, INC. | PASADENA, CA | Umpqua Bank |
| $2–5 million | LAWRY'S RESTAURANTS, INC. | PASADENA, CA | Umpqua Bank |
| $350,000–1 million | LAWRY'S THE PRIME RIB, INC. | PASADENA, CA | Umpqua Bank |
| $350,000–1 million | LAWSON CORP | CARLTON, OR | Umpqua Bank |
| $2–5 million | LAWSON MECHANICAL CONTRACTORS | SACRAMENTO, CA | Umpqua Bank |
| $150,000–350,000 | LAZCANO'S MASONRY AND CONCRETE, INC. | SOMIS, CA | Umpqua Bank |
| $1–2 million | LB PROPERTY MANAGEMENT, INC. | SHERMAN OAKS, CA | Umpqua Bank |
| $150,000–350,000 | LC HOTEL LLC | Lincoln City, OR | Umpqua Bank |
| $150,000–350,000 | LC HOTEL LLC | Lincoln City, OR | Umpqua Bank |
| $150,000–350,000 | LCD EXCAVATION LLC | BEAVERTON, OR | Umpqua Bank |
| $150,000–350,000 | LDB BEVERAGE COMPANY | STEVENSON, WA | Umpqua Bank |
| $150,000–350,000 | LDB BEVERAGE COMPANY | Stevenson, WA | Umpqua Bank |
| $350,000–1 million | LDC INC | SPRINGFIELD, OR | Umpqua Bank |
| $350,000–1 million | LEATHERS ENTERPRISES, INC. | Fairview, OR | Umpqua Bank |
| $150,000–350,000 | LEDOUX INSURANCE AGENCY, INC | EUGENE, OR | Umpqua Bank |
| $150,000–350,000 | LEE BOWE COMPANY | Seattle, WA | Umpqua Bank |
| $350,000–1 million | LEE REDFERN CONCRETE CONSTRUCTION | Troutdale, OR | Umpqua Bank |
| $350,000–1 million | LEE REDFERN CONSTRUCTION CO, INC | TROUTDALE, OR | Umpqua Bank |
| $150,000–350,000 | LEE'S MOTORCYCLES, INC. | REDDING, CA | Umpqua Bank |
| $350,000–1 million | LEED MECHANICAL | RANCHO CORDOVA, CA | Umpqua Bank |
| $150,000–350,000 | LEENA'S, INC. | Shoreline, WA | Umpqua Bank |
| $150,000–350,000 | LEENDERS DRYWALL INC | Lynden, WA | Umpqua Bank |
| $350,000–1 million | LEFF CONSTRUCTION & DEVELOPMENT CORPORATION | Sebastopol, CA | Umpqua Bank |
| $350,000–1 million | LEFF CONSTRUCTION & DEVELOPMENT CORPORATION | SEBASTOPOL, CA | Umpqua Bank |
| $350,000–1 million | LEGEND CUSTOM WOODWORKING INC. | Portland, OR | Umpqua Bank |
| $150,000–350,000 | LEICHHARDT GROUP INC. | Seattle, WA | Umpqua Bank |
| $150,000–350,000 | LEINAIA KING | Carlsbad, CA | Umpqua Bank |
| $150,000–350,000 | LEINAIA TRANSPORTATION | CARLSBAD, CA | Umpqua Bank |
| $350,000–1 million | LEK ENTERPRISES INC | Rancho Cordova, CA | Umpqua Bank |
| $350,000–1 million | LEK ENTERPRISES, INC | RANCHO CORDOVA, CA | Umpqua Bank |
| $350,000–1 million | LEMAY AMERICAS CAR MUSEUM | Tacoma, WA | Umpqua Bank |
| $350,000–1 million | LEMAY-AMERICA'S CAR MUSEUM | TACOMA, WA | Umpqua Bank |
| $150,000–350,000 | LEMELSON WINERY LLC | CARLTON, OR | Umpqua Bank |
| $350,000–1 million | LENITY ARCHITECTURE | Salem, OR | Umpqua Bank |
| $350,000–1 million | LENITY MANAGEMENT, LLC | JACKSONVILLE, OR | Umpqua Bank |
| $350,000–1 million | LEOS WELDING AND FABRICATION LLC | Seattle, WA | Umpqua Bank |
| $350,000–1 million | LEOS WELDING AND FABRICATION LLC | EVERETT, WA | Umpqua Bank |
| $350,000–1 million | LES BOULANGERS ASSOCIE | Seatac, WA | Umpqua Bank |
| $350,000–1 million | LES BOULANGERS ASSOCIES, INC. | SEATAC, WA | Umpqua Bank |
| $150,000–350,000 | LESLIE A CARTER MD LLC | BEND, OR | Umpqua Bank |
| $350,000–1 million | LEWIS AND CLARK MONTESSORI CHARTER SCHOOL | Damascus, OR | Umpqua Bank |
| $350,000–1 million | LEWIS AND CLARK MONTESSORI CHARTER SCHOOL | DAMASCUS, OR | Umpqua Bank |
| $150,000–350,000 | LEWISTON VETERINARY CLINIC, CHARTERED | LEWISTON, ID | Umpqua Bank |
| $150,000–350,000 | LEXI DOG INC. | Portland, OR | Umpqua Bank |
| $150,000–350,000 | LEXI DOG, INC. | PORTLAND, OR | Umpqua Bank |
| $350,000–1 million | LEXICON STAFFING INC | PORTLAND, OR | Umpqua Bank |
| $150,000–350,000 | LIBBEY-IDA INC | Sandpoint, ID | Umpqua Bank |
| $350,000–1 million | LIBERTY CASEWORK LLC | Tacoma, WA | Umpqua Bank |
| $350,000–1 million | LIBERTY CASEWORK LLC | TACOMA, WA | Umpqua Bank |
| $350,000–1 million | LIBERTY HR LLC | Portland, OR | Umpqua Bank |
| $150,000–350,000 | LIC PAINTING INC | Gervais, OR | Umpqua Bank |
| $150,000–350,000 | LIEBERT & LIEBERT CPA LLC | PORTLAND, OR | Umpqua Bank |
| $150,000–350,000 | LIFE LEGAL DEFENSE FOUNDATION | Napa, CA | Umpqua Bank |
| $350,000–1 million | LIFE OF PIE LLC | Portland, OR | Umpqua Bank |
| $150,000–350,000 | LIFE OF PIE LLC | PORTLAND, OR | Umpqua Bank |
| $350,000–1 million | LIFESTYLE HOMES, INC. | RENO, NV | Umpqua Bank |
| $350,000–1 million | LIFESTYLE SOLUTIONS, INC. | NEWARK, CA | Umpqua Bank |
| $2–5 million | LIFEWAYS, INC. | ONTARIO, OR | Umpqua Bank |
| $350,000–1 million | LIGHTEL TECHNOLOGIES INC | RENTON, WA | Umpqua Bank |
| $150,000–350,000 | LIGHTWORKS ELECTRIC COMPANY | TUALATIN, OR | Umpqua Bank |
| $2–5 million | LILE INTERNATIONAL COMPANIES | PORTLAND, OR | Umpqua Bank |
| $150,000–350,000 | LILIT BAKERY INC | North Hollywood, CA | Umpqua Bank |
| $150,000–350,000 | LIME ROCK, LLC | MEDFORD, OR | Umpqua Bank |
| $1–2 million | LIND MARINE INCORPORATED | PETALUMA, CA | Umpqua Bank |
| $1–2 million | LIND MARINE INCORPORATED | Petaluma, CA | Umpqua Bank |
| $150,000–350,000 | LINDELL YACHTS | Camano Island, WA | Umpqua Bank |
| $150,000–350,000 | LINDELL YACHTS INC. | CAMANO ISLAND, WA | Umpqua Bank |
| $350,000–1 million | LINESCAPE LLC | TUALATIN, OR | Umpqua Bank |
| $350,000–1 million | LINESCAPE OF WASHINGTON LLC | TUALATIN, OR | Umpqua Bank |
| $150,000–350,000 | LINK DESIGN GROUP LLC | KIRKLAND, WA | Umpqua Bank |
| $150,000–350,000 | LINK DESIGN GROUP LLC | Kirkland, WA | Umpqua Bank |
| $350,000–1 million | LINN BENTON TRACTOR COMPANY | TANGENT, OR | Umpqua Bank |
| $150,000–350,000 | LIQUA-TECH CORPORATION | Ukiah, CA | Umpqua Bank |
| $150,000–350,000 | LIQUID MEASURE, INC | WILSONVILLE, OR | Umpqua Bank |
| $150,000–350,000 | LISA L BUTTARO DDS PLLC | FIFE, WA | Umpqua Bank |
| $150,000–350,000 | LISA PARK DDS & SIMONE KIM DDS PLLC | SEATTLE, WA | Umpqua Bank |
| $150,000–350,000 | LISA PARK DDS & SIMONE KIM DDS PLLC | Seattle, WA | Umpqua Bank |
| $350,000–1 million | LISTEN AND TALK | SEATTLE, WA | Umpqua Bank |
| $350,000–1 million | LITTAU HARVESTER INC. | Stayton, OR | Umpqua Bank |
| $350,000–1 million | LITTAU HARVESTER, INC. | STAYTON, OR | Umpqua Bank |
| $350,000–1 million | LITTLE BIG HOUSE LLC | LOS ANGELES, CA | Umpqua Bank |
| $150,000–350,000 | LITTLE CREEK INC. | Lincoln, CA | Umpqua Bank |
| $150,000–350,000 | LITTLE SCHOOL HOUSE, INC. | WINDSOR, CA | Umpqua Bank |