| $150,000–350,000 | MCCORMACK PLASTIC SURGERY | RENO, NV | Glacier Bank |
| $150,000–350,000 | MCDANTIM INCORPORATED | HELENA, MT | Glacier Bank |
| $350,000–1 million | MCDONALD REHAB, PC | POCATELLO, ID | Glacier Bank |
| $1–2 million | MCDONALD'S OF KEYSTONE | RENO, NV | Glacier Bank |
| $350,000–1 million | MCGINLEY & ASSOCIATES | RENO, NV | Glacier Bank |
| $150,000–350,000 | MCK WOODWORKS, L.L.C. | PRESCOTT, AZ | Glacier Bank |
| $150,000–350,000 | MCMAHON & EASTERBROOK | HOPE, ID | Glacier Bank |
| $150,000–350,000 | MCMILLAN SERVICES, LLC | MORGAN, UT | Glacier Bank |
| $350,000–1 million | MCT, INC. | MISSOULA, MT | Glacier Bank |
| $150,000–350,000 | MCVAY'S MCROPIN, INC. | SPARKS, NV | Glacier Bank |
| $350,000–1 million | MDM CONSTRUCITON GROUP, INC | HAYDEN, ID | Glacier Bank |
| $350,000–1 million | MEADOW LAKE DEVELOPMENT CORPORATION | COLUMBIA FALLS, MT | Glacier Bank |
| $150,000–350,000 | MEDICAL EYE SPECIALISTS, P.C. | BOZEMAN, MT | Glacier Bank |
| $1–2 million | MEDICAL ONCOLOGY ASSOCIATES P.S. | SPOKANE, WA | Glacier Bank |
| $150,000–350,000 | MEDICINE MAN NORTH PHARMACY, INC | HAYDEN, ID | Glacier Bank |
| $150,000–350,000 | MEMORIAL GALLERY, INC. | GIG HARBOR, WA | Glacier Bank |
| $150,000–350,000 | MENLO PARK PROPERTIES LLC | GOLD RIVER, CA | Glacier Bank |
| $150,000–350,000 | MERIDIAN PLUMBING COMPANY, INC. | MERIDIAN, ID | Glacier Bank |
| $150,000–350,000 | MERTENS HEAVY EQUIPMENT REPAIR, LLC | KINGMAN, AZ | Glacier Bank |
| $150,000–350,000 | MESA FAB SHOP INC | PUEBLO, CO | Glacier Bank |
| $150,000–350,000 | MESA TURF MASTERS LLC | GRAND JUNCTION, CO | Glacier Bank |
| $150,000–350,000 | MESSENGER MOLDING, INC. | RENO, NV | Glacier Bank |
| $350,000–1 million | METAL WORKS OF MONTANA, INC. | MISSOULA, MT | Glacier Bank |
| $150,000–350,000 | METROQUIP, INC | MERIDIAN, ID | Glacier Bank |
| $150,000–350,000 | MHH, INC | CASPER, WY | Glacier Bank |
| $350,000–1 million | MIC ROCK SENIOR CARE LLC | MIDVALE, UT | Glacier Bank |
| $150,000–350,000 | MICHAEL H. SONG, MD LTD | RENO, NV | Glacier Bank |
| $150,000–350,000 | MICHAEL R DIBENEDETTO MD PLLC | PONDERAY, ID | Glacier Bank |
| $150,000–350,000 | MICHAEL'S RENO SUZUKI YAMAHA, INC. | RENO, NV | Glacier Bank |
| $150,000–350,000 | MICKDUFF'S INC. | SANDPOINT, ID | Glacier Bank |
| $150,000–350,000 | MICROTECHNOLOGY SYSTEMS INC | GARDEN CITY, ID | Glacier Bank |
| $150,000–350,000 | MIDDLE CREEK ACADEMY INC | BOZEMAN, MT | Glacier Bank |
| $150,000–350,000 | MIDWAY AUTO & RV - CODY, LLC | CODY, WY | Glacier Bank |
| $150,000–350,000 | MIDWEST FABRICATION AND STEEL LLC | PUEBLO, CO | Glacier Bank |
| $350,000–1 million | MIKE NAUGHTON FORD, INC. | AURORA, CO | Glacier Bank |
| $150,000–350,000 | MIKE WHITE FORD OF SANDPOINT LLC | PONDERAY, ID | Glacier Bank |
| $150,000–350,000 | MILE HIGH BEVERAGES, INC. | BUTTE, MT | Glacier Bank |
| $150,000–350,000 | MILLSTONE PIZZA, LLC | CODY, WY | Glacier Bank |
| $350,000–1 million | MILODRAGOVICH, DALE & STEINBRENNER PC | MISSOULA, MT | Glacier Bank |
| $150,000–350,000 | MISENHIMER, AIVAZIAN & TENNANT, P.C. | YUMA, AZ | Glacier Bank |
| $1–2 million | MISSOULA BONE & JOINT LLC | MISSOULA, MT | Glacier Bank |
| $350,000–1 million | MISSOULA CORRECTIONAL SERVICES, INC. | MISSOULA, MT | Glacier Bank |
| $150,000–350,000 | MISSOULA INTERNATIONAL SCHOOL | MISSOULA, MT | Glacier Bank |
| $350,000–1 million | MISSOULA MOTOR PARTS, INC. | MISSOULA, MT | Glacier Bank |
| $150,000–350,000 | MISSOULA PEDIATRIC DENTISTRY PLLC | MISSOULA, MT | Glacier Bank |
| $150,000–350,000 | MISSOULA SAWS INC | MISSOULA, MT | Glacier Bank |
| $350,000–1 million | MODERN CLASSIC MOTORS, INC | GRAND JUNCTION, CO | Glacier Bank |
| $350,000–1 million | MOHAVE FORD II, LLC | BULLHEAD CITY, AZ | Glacier Bank |
| $350,000–1 million | MOHAVE FORD, LLC | KINGMAN, AZ | Glacier Bank |
| $2–5 million | MOHAVE MENTAL HEALTH CLINIC, INC. | KINGMAN, AZ | Glacier Bank |
| $150,000–350,000 | MOLLY MAID OF WEST ADA COUNTY | MERIDIAN, ID | Glacier Bank |
| $350,000–1 million | MOLTZ CONSTRUCTORS, INC | LARKSPUR, CO | Glacier Bank |
| $150,000–350,000 | MONDO PROJECTS | DENVER, CO | Glacier Bank |
| $150,000–350,000 | MONIDA HEALTHCARE NETWORK INC | MISSOULA, MT | Glacier Bank |
| $150,000–350,000 | MONIDA HEALTHCARE STAFFING SOLUTIONS, LLC | MISSOULA, MT | Glacier Bank |
| $150,000–350,000 | MONTANA BROOM AND BRUSH COMPANY | BUTTE, MT | Glacier Bank |
| $350,000–1 million | MONTANA BURGERS INC | MISSOULA, MT | Glacier Bank |
| $150,000–350,000 | MONTANA CLUB OF BILLINGS LLC | BILLINGS, MT | Glacier Bank |
| $150,000–350,000 | MONTANA CLUB OF BUTTE, LLC | BUTTE, MT | Glacier Bank |
| $150,000–350,000 | MONTANA CLUB OF GREAT FALLS, LLC | GREAT FALLS, MT | Glacier Bank |
| $150,000–350,000 | MONTANA CLUB OF KALISPELL LLC | MISSOULA, MT | Glacier Bank |
| $150,000–350,000 | MONTANA CLUB OF MISSOULA, INC. | MISSOULA, MT | Glacier Bank |
| $350,000–1 million | MONTANA COMMUNITY DEVELOPMENT CORPORATION | MISSOULA, MT | Glacier Bank |
| $150,000–350,000 | MONTANA ELDER LAW, INC. | MISSOULA, MT | Glacier Bank |
| $150,000–350,000 | MONTANA FOOD BANK NETWORK, INC. | MISSOULA, MT | Glacier Bank |
| $150,000–350,000 | MONTANA GSE INC | SHEPHERD, MT | Glacier Bank |
| $1–2 million | MONTANA INDEPENDENT LIVING PROJECT INC | HELENA, MT | Glacier Bank |
| $150,000–350,000 | MONTANA INTERNET CORPORATION | HELENA, MT | Glacier Bank |
| $150,000–350,000 | MONTANA JACK'S OF BILLINGS, INC. | BILLINGS, MT | Glacier Bank |
| $150,000–350,000 | MONTANA OFFICE MACHINES OF MISSOULA | MISSOULA, MT | Glacier Bank |
| $350,000–1 million | MONTANA OFFICE MACHINES, INC. | KALISPELL, MT | Glacier Bank |
| $150,000–350,000 | MONTANA ORAL SURGERY AND DENTAL IMPLANT CENTER | HELENA, MT | Glacier Bank |
| $350,000–1 million | MONTANA SCHOOL BOARDS ASSOCIATION INC | HELENA, MT | Glacier Bank |
| $150,000–350,000 | MONTANA SKIN CANCER AND DERMATOLOGY CENTER, PC | BOZEMAN, MT | Glacier Bank |
| $150,000–350,000 | MONTANA STATE UNIVERSITY BOOKSTORE, INC. | BOZEMAN, MT | Glacier Bank |
| $150,000–350,000 | MONTANA TRANSFER COMPANY | MISSOULA, MT | Glacier Bank |
| $150,000–350,000 | MONTANA WILDERNESS ASSOCIATION INC | HELENA, MT | Glacier Bank |
| $150,000–350,000 | MONUMENT PHARMACY, INC. | MONUMENT, CO | Glacier Bank |
| $150,000–350,000 | MOORE INFORMATION INC | PORTLAND, OR | Glacier Bank |
| $150,000–350,000 | MOORE, COCKRELL, GOICOECHEA & JOHNSON, P.C. | KALISPELL, MT | Glacier Bank |
| $2–5 million | MORGAN ASPHALT INC | SALT LAKE CITY, UT | Glacier Bank |
| $1–2 million | MORGAN INDUSTRIES, INC | CLEARFIELD, UT | Glacier Bank |
| $150,000–350,000 | MORGAN VALLEY POLARIS, INC. | MORGAN, UT | Glacier Bank |
| $350,000–1 million | MORRIS AG AIR SOUTHWEST LLC | YUMA, AZ | Glacier Bank |
| $150,000–350,000 | MORSE DRYWALL AND CONSTRUCTION INCORPORATED | WHITEFISH, MT | Glacier Bank |
| $150,000–350,000 | MOSAIC ARCHITECTURE PC | HELENA, MT | Glacier Bank |
| $150,000–350,000 | MOSAIC, INC. | BELGRADE, MT | Glacier Bank |
| $150,000–350,000 | MOTORCOACH MAINTENANCE & TRUCK REPAIR OF MONTANA, INC. | BELGRADE, MT | Glacier Bank |
| $350,000–1 million | MOULTON BELLINGHAM PC | BILLINGS, MT | Glacier Bank |
| $150,000–350,000 | MOUNTAIN DISPOSAL INC | COLORADO CITY, CO | Glacier Bank |
| $150,000–350,000 | MOUNTAIN MEADOW HERBS, INC | SOMERS, MT | Glacier Bank |
| $350,000–1 million | MOUNTAIN REGIONAL SERVICES, INC. | EVANSTON, WY | Glacier Bank |
| $150,000–350,000 | MOUNTAIN SCHOOL, INC | FLAGSTAFF, AZ | Glacier Bank |
| $350,000–1 million | MOUNTAIN STATES ELECTRICAL CONTRACTORS INC | SPOKANE, WA | Glacier Bank |
| $1–2 million | MOUNTAIN STATES PRESSURE SERVICE, INC | ROCK SPRINGS, WY | Glacier Bank |
| $150,000–350,000 | MOUNTAIN TRADE SUPPLY INC | DENVER, CO | Glacier Bank |
| $150,000–350,000 | MOUNTAIN VIEW ENGINEERING, INC. | BRIGHAM CITY, UT | Glacier Bank |
| $350,000–1 million | MOUNTAIN VIEW NURSING AND REHABILITATION, INC. | PAYSON, UT | Glacier Bank |
| $150,000–350,000 | MOUNTAIN WEST IRA, INC | BOISE, ID | Glacier Bank |
| $150,000–350,000 | MOUNTAIN WEST MECHANICAL HVAC LLC | ETNA, WY | Glacier Bank |