| $150,000–350,000 | MAPLEWOOD CARE GROUP LLC | Vancouver, WA | Umpqua Bank |
| $150,000–350,000 | MARCOS E MARTINEZ DDS PLLC | BROWNSVILLE, TX | Umpqua Bank |
| $150,000–350,000 | MARCUM & SONS LLC | REDMOND, OR | Umpqua Bank |
| $150,000–350,000 | MAREENI T. STANISLAUS, M.D., A MEDICAL CORPORATION | TEMPLETON, CA | Umpqua Bank |
| $350,000–1 million | MARENAKOS INC. | ISSAQUAH, WA | Umpqua Bank |
| $350,000–1 million | MARGENT CORPORATION | OLYMPIA, WA | Umpqua Bank |
| $350,000–1 million | MARIA MONTESSORI CHARTER ACADEMY | ROCKLIN, CA | Umpqua Bank |
| $350,000–1 million | MARIE MILLS CENTER INC. | Tillamook, OR | Umpqua Bank |
| $350,000–1 million | MARIE MILLS CENTER, INC. | TILLAMOOK, OR | Umpqua Bank |
| $350,000–1 million | MARIN CANCER CARE, INC | GREENBRAE, CA | Umpqua Bank |
| $150,000–350,000 | MARIN COUNTY ROOFING CO. INC. | San Rafael, CA | Umpqua Bank |
| $150,000–350,000 | MARIN COUNTY ROOFING CO., INC. | SAN RAFAEL, CA | Umpqua Bank |
| $150,000–350,000 | MARITIME PACIFIC BREWING COMPANY | Seattle, WA | Umpqua Bank |
| $350,000–1 million | MARK JONES TRUCKING, INC. | ROSEBURG, OR | Umpqua Bank |
| $150,000–350,000 | MARK L HARRIS DMD PC | La Grande, OR | Umpqua Bank |
| $350,000–1 million | MARK O'HANLON DVM PS INC | REDMOND, WA | Umpqua Bank |
| $150,000–350,000 | MARK S PETERSON INSURANCE | PORTLAND, OR | Umpqua Bank |
| $350,000–1 million | MARK SHUHOLM, LLC | Molalla, OR | Umpqua Bank |
| $150,000–350,000 | MARK'S AUTO BODY, INC. | REDMOND, OR | Umpqua Bank |
| $1–2 million | MARKET DECISIONS CORPORATION | PORTLAND, OR | Umpqua Bank |
| $350,000–1 million | MARKET OF CHOICE, INC. | EUGENE, OR | Umpqua Bank |
| $150,000–350,000 | MARKO BODOR MD A PROFESSIONAL CORPORATION | Napa, CA | Umpqua Bank |
| $150,000–350,000 | MARKO BODOR MD, A PROFESSIONAL CORPORATION | NAPA, CA | Umpqua Bank |
| $150,000–350,000 | MARLES CORPORATION | Tacoma, WA | Umpqua Bank |
| $150,000–350,000 | MARNTOD CONCEPTS LLC | Eugene, OR | Umpqua Bank |
| $150,000–350,000 | MARNTOD CONCEPTS LLC | EUGENE, OR | Umpqua Bank |
| $150,000–350,000 | MARQUESS & ASSOCIATES, INC. | MEDFORD, OR | Umpqua Bank |
| $350,000–1 million | MARSHALLS INC. | SPRINGFIELD, OR | Umpqua Bank |
| $5–10 million | MARTIN BROS./MARCOWALL, INC | GARDENA, CA | Umpqua Bank |
| $150,000–350,000 | MARTIN LUTHER KING JR. FAMILY OUTREACH CENTER | Spokane, WA | Umpqua Bank |
| $150,000–350,000 | MARTIN LUTHER KING JR. FAMILY OUTREACH CENTER | SPOKANE, WA | Umpqua Bank |
| $150,000–350,000 | MARTINEAU ENTERPRISES INC. | McCall, ID | Umpqua Bank |
| $1–2 million | MARTINEZ FARMING, LLC | PASO ROBLES, CA | Umpqua Bank |
| $150,000–350,000 | MARVEL FOOD AND DELI, INC. | Auburn, WA | Umpqua Bank |
| $150,000–350,000 | MASIC INDUSTRIES INC. | Clackamas, OR | Umpqua Bank |
| $150,000–350,000 | MASS INGENUITY INC | Portland, OR | Umpqua Bank |
| $150,000–350,000 | MASS INGENUITY INC, | PORTLAND, OR | Umpqua Bank |
| $150,000–350,000 | MASSAGE ME OLYMIA, INC. | Olympia, WA | Umpqua Bank |
| $150,000–350,000 | MAST BROS ENT INC | Reedsport, OR | Umpqua Bank |
| $350,000–1 million | MASTER CRAFT ELECTRIC, INC. | PACIFIC, WA | Umpqua Bank |
| $150,000–350,000 | MASTERFIELD CONSTRUCTION | Sparks, NV | Umpqua Bank |
| $350,000–1 million | MASTERS DISTRIBUTION, INC. | RANCHO CORDOVA, CA | Umpqua Bank |
| $150,000–350,000 | MASTERSTOUCH CONSTRUCTION, INC. | SANTA ROSA, CA | Umpqua Bank |
| $150,000–350,000 | MATERIALS TESTING, INC. | VACAVILLE, CA | Umpqua Bank |
| $150,000–350,000 | MATIA INVESTMENT FUND, INC. | TACOMA, WA | Umpqua Bank |
| $150,000–350,000 | MATT LEE | maple valley, WA | Umpqua Bank |
| $150,000–350,000 | MATTHEW E MYERS DMD PC | Medford, OR | Umpqua Bank |
| $150,000–350,000 | MATTHEW R PERRY, OD, INC | Hillsboro, OR | Umpqua Bank |
| $150,000–350,000 | MAUGHAN DESIGN, INC | PORTLAND, OR | Umpqua Bank |
| $350,000–1 million | MAXFIELD, MADSEN, MAXFIELD D.D.S. P.S. | WEST RICHLAND, WA | Umpqua Bank |
| $350,000–1 million | MAY-HAN ELECTRIC INC. | SACRAMENTO, CA | Umpqua Bank |
| $150,000–350,000 | MAYAHUEL CATERING LLC | PORTLAND, OR | Umpqua Bank |
| $150,000–350,000 | MAYFLOWER FARMS, INC | ARBUCKLE, CA | Umpqua Bank |
| $150,000–350,000 | MBG TAX PLUS SERVICES INCORPORATED | Burien, WA | Umpqua Bank |
| $350,000–1 million | MBM RESTAURANT GROUP LLC | Seattle, WA | Umpqua Bank |
| $150,000–350,000 | MC INTERIORS LLC | BATTLE GROUND, WA | Umpqua Bank |
| $1–2 million | MCBRIDE CONSTRUCTION RESOURCES INC | BURIEN, WA | Umpqua Bank |
| $1–2 million | MCBRIDE CONSTRUCTION RESOURCES INC | Burien, WA | Umpqua Bank |
| $150,000–350,000 | MCCALL TIRE CENTER INC | WARRENTON, OR | Umpqua Bank |
| $150,000–350,000 | MCCOLLUM LOGGING CO. INC. | SWEET HOME, OR | Umpqua Bank |
| $150,000–350,000 | MCCORKLE FARMS INC | GLENN, CA | Umpqua Bank |
| $150,000–350,000 | MCCULLOUGH ARCHITECTS INC | Seattle, WA | Umpqua Bank |
| $150,000–350,000 | MCCULLOUGH ARCHITECTS INCORPORATED | Seattle, WA | Umpqua Bank |
| $150,000–350,000 | MCCUMBER'S GLASS, INC. | MARYSVILLE, CA | Umpqua Bank |
| $150,000–350,000 | MCDIARMID CONTROLS INC. | Eugene, OR | Umpqua Bank |
| $150,000–350,000 | MCDIARMID CONTROLS, INC. | EUGENE, OR | Umpqua Bank |
| $1–2 million | MCDONALD & WETLE, INC. | PORTLAND, OR | Umpqua Bank |
| $350,000–1 million | MCDONALD EXCAVATING, INC. | WASHOUGAL, WA | Umpqua Bank |
| $150,000–350,000 | MCDONALD SERVICES, INC. | Puyallup, WA | Umpqua Bank |
| $150,000–350,000 | MCDONALDS | REDDING, CA | Umpqua Bank |
| $350,000–1 million | MCDONELL ELECTRIC INC. | SANTA ROSA, CA | Umpqua Bank |
| $150,000–350,000 | MCGANN ELECTRIC | BLACK DIAMOND, WA | Umpqua Bank |
| $150,000–350,000 | MCGEE ENGINEERING, INC. | CORVALLIS, OR | Umpqua Bank |
| $350,000–1 million | MCGRANAHAN ARCHITECTS PS | Tacoma, WA | Umpqua Bank |
| $1–2 million | MCGRANAHAN ARCHITECTS, PS | TACOMA, WA | Umpqua Bank |
| $150,000–350,000 | MCHC ENTERPRISES INC | Tacoma, WA | Umpqua Bank |
| $150,000–350,000 | MCHC ENTERPRISES INC | Tacoma, WA | Umpqua Bank |
| $150,000–350,000 | MCILRATH & ECK LLC | ARLINGTON, WA | Umpqua Bank |
| $150,000–350,000 | MCJASM INC. | REDDING, CA | Umpqua Bank |
| $350,000–1 million | MCKEE ENTERPRISES LLC | Enumclaw, WA | Umpqua Bank |
| $150,000–350,000 | MCKEE FAMILY FARMS | Amity, OR | Umpqua Bank |
| $350,000–1 million | MCKENNON LLC | MEDFORD, OR | Umpqua Bank |
| $150,000–350,000 | MCKENZIE CREST, INC. | SPRINGFIELD, OR | Umpqua Bank |
| $150,000–350,000 | MCKENZIE PERSONNEL SYSTEMS | SPRINGFIELD, OR | Umpqua Bank |
| $150,000–350,000 | MCKENZIE PROPERTIES MANAGEMENT, INC | RENO, NV | Umpqua Bank |
| $150,000–350,000 | MCKENZIE ROOFING, INC. | SPRINGFIELD, OR | Umpqua Bank |
| $150,000–350,000 | MCKENZIE SURFACE LLC | Eugene, OR | Umpqua Bank |
| $150,000–350,000 | MCKENZIE SURFACES, LLC | Eugene, OR | Umpqua Bank |
| $350,000–1 million | MCKINSTRY STAUFFER & YANG INC. | Seattle, WA | Umpqua Bank |
| $350,000–1 million | MCKINSTRY STAUFFER & YANG, INC. | SEATTLE, WA | Umpqua Bank |
| $150,000–350,000 | MCLAUGHLIN AND STONEBRAKER PLLC | Redmond, WA | Umpqua Bank |
| $150,000–350,000 | MCLAUGHLIN-STONEBRAKER PLLC | REDMOND, WA | Umpqua Bank |
| $150,000–350,000 | MCLENNAN EXCAVATION INC | Brookings, OR | Umpqua Bank |
| $150,000–350,000 | MCLENNAN EXCAVATION INC | BROOKINGS, OR | Umpqua Bank |
| $350,000–1 million | MCLOUGHLIN PLACE OPERATIONS, LLC | VANCOUVER, WA | Umpqua Bank |
| $350,000–1 million | MCMURAY AND SONS | BEND, OR | Umpqua Bank |
| $350,000–1 million | MCMURRAY INC. | Portland, OR | Umpqua Bank |
| $150,000–350,000 | MCMURRAY INC. | PORTLAND, OR | Umpqua Bank |
| $150,000–350,000 | MCNERNEY FARMS INC. | HOOD RIVER, OR | Umpqua Bank |
| $150,000–350,000 | MCNERNEY FARMS INC. | Hood River, OR | Umpqua Bank |