Montana Employer EIN Lookup
Use this MontanaEIN lookup to find an employer’s Employer Identification Number from its public Form 5500 filing. 3,122 employers based in Montana have filed a Form 5500, covering 3,531 retirement and health plans with $13.7B in reported assets. The largest are listed below with their EIN — open any employer to see the full filing.
Employers
3,122
Plans
3,531
Total assets
$13.7B
Largest employers in Montana by EIN
Form 5500 search →| Employer | EIN | City | Plans | Participants | Assets |
|---|---|---|---|---|---|
| NORTHWESTERN CORPORATION | 46-0172280 | BUTTE | 5 | 3,583 | $937.1M |
| BILLINGS CLINIC | 81-0231784 | BILLINGS | 3 | 10,088 | $857.0M |
| D.A. DAVIDSON COMPANIES | 81-0439153 | GREAT FALLS | 3 | 4,537 | $692.7M |
| GLACIER BANCORP, INC. | 81-0519541 | KALISPELL | 2 | 6,576 | $545.5M |
| LOGAN HEALTH | 81-0406485 | KALISPELL | 4 | 22,594 | $500.4M |
| FIRST INTERSTATE BANCSYSTEM, INC. | 81-0331430 | BILLINGS | 3 | 6,423 | $481.7M |
| PACIFIC HIDE & FUR DEPOT D/B/A PACIFIC STEEL AND RECYCLING | 81-0246538 | GREAT FALLS | 5 | 3,305 | $480.1M |
| STILLWATER MINING COMPANY | 81-0480654 | COLUMBUS | 6 | 3,192 | $430.8M |
| WASHINGTON COMPANIES | 81-0485406 | MISSOULA | 4 | 4,210 | $312.6M |
| ELECTRICAL CONSULTANTS, INC. | 81-0427018 | BILLINGS | 3 | 2,888 | $251.5M |
| ST. PETERS HEALTH | 81-0233121 | HELENA | 3 | 4,236 | $190.8M |
| BOZEMAN DEACONESS HEALTH SERVICES DBA BOZEMAN HEALTH | 81-0232121 | BOZEMAN | 3 | 6,270 | $179.2M |
| MORRISON-MAIERLE, INC. | 81-0217149 | HELENA | 3 | 974 | $152.7M |
| BARNARD CONSTRUCTION COMPANY, INC. | 81-0384712 | BOZEMAN | 1 | 523 | $127.1M |
| STOCKMAN FINANCIAL CORP. | 81-0399040 | MILES CITY | 2 | 1,545 | $124.3M |
| CROWLEY FLECK PLLP | 81-0122795 | BILLINGS | 3 | 671 | $109.6M |
| SLETTEN, INC. | 81-0418015 | GREAT FALLS | 4 | 1,464 | $107.3M |
| TOWN PUMP, ET AL | 81-0270360 | BUTTE | 2 | 5,240 | $98.6M |
| CUSHING TERRELL | 81-0305543 | BILLINGS | 3 | 1,343 | $91.6M |
| DICK ANDERSON CONSTRUCTION, INC. | 81-0380463 | HELENA | 3 | 1,580 | $88.1M |
| MONTANA HEALTH NETWORK | 81-0440728 | MILES CITY | 2 | 3,206 | $72.1M |
| S&K TECHNOLOGIES, INC. | 32-0189276 | ST. IGNATIUS | 5 | 2,235 | $60.0M |
| MARCUS DALY MEMORIAL HOSPITAL CORPORATION | 81-0240726 | HAMILTON | 2 | 1,365 | $56.8M |
| MISSOULA ANESTHESIOLOGY, P.C. | 81-0513275 | MISSOULA | 1 | 47 | $56.7M |
| ALLEGIANCE BENEFIT PLAN MANAGEMENT, INC. | 81-0400550 | MISSOULA | 2 | 1,226 | $55.8M |
| OFTEDAL CONSTRUCTION, INC. | 81-0307943 | MILES CITY | 2 | 265 | $55.7M |
| CARROLL COLLEGE | 81-0231774 | HELENA | 9 | 1,511 | $55.3M |
| ASSOCIATED EMPLOYERS OF MONTANA | 81-0424947 | BILLINGS | 1 | 7,740 | $54.3M |
| NORTHERN MONTANA HOSPITAL | 81-0231787 | HAVRE | 3 | 1,065 | $50.3M |
| LMLC OPERATIONS LLC | 93-3834011 | BOZEMAN | 1 | 2,225 | $47.5M |
| PIONEER TECHNICAL SERVICES, INC. | 81-0474175 | BUTTE | 3 | 355 | $47.2M |
| OPPORTUNITY BANK OF MONTANA | 81-0105500 | HELENA | 3 | 1,014 | $47.1M |
| WESTERN MONTANA CLINIC, P.C. | 81-0226415 | MISSOULA | 1 | 200 | $46.8M |
| ZOOT ENTERPRISES INC | 81-0529856 | BOZEMAN | 2 | 534 | $42.5M |
| BOARD OF TRUSTEES OF THE MONTANA CONTRACTORS ASSN HEALTH CARE TRUST | 81-0449239 | BILLINGS | 1 | 1,982 | $42.4M |
| AMERICAN CHEMET CORPORATION | 36-2057681 | HELENA | 3 | 327 | $42.4M |
| RANCH AND HOME SUPPLY, LLC | 72-1542483 | BOZEMAN | 2 | 2,498 | $40.9M |
| COMPUTERS UNLIMITED, INC. | 81-0375793 | BILLINGS | 2 | 374 | $40.4M |
| MID-RIVERS TELEPHONE COOPERATIVE, INC. | 81-0239277 | CIRCLE | 3 | 211 | $40.1M |
| ON SITE MANAGEMENT, INC. | 81-0445392 | BOZEMAN | 3 | 299 | $38.4M |
| MOULTON BELLINGHAM PC | 81-0387111 | BILLINGS | 1 | 25 | $36.8M |
| INDEPENDENCE BANK | 81-0331859 | HAVRE | 1 | 147 | $34.5M |
| SIDNEY HEALTH CENTER | 81-0233499 | SIDNEY | 3 | 1,028 | $33.9M |
| KAMPGROUNDS OF AMERICA, INC | 81-0292967 | BILLINGS | 3 | 1,421 | $33.0M |
| THOMAS, DEAN & HOSKINS, INC. | 81-0295283 | GREAT FALLS | 2 | 254 | $32.8M |
| FRANCES MAHON DEACONESS HOSPITAL | 81-0231786 | GLASGOW | 3 | 729 | $32.6M |
| ROCKY MOUNTAIN COLLEGE | 81-0235407 | BILLINGS | 2 | 428 | $32.6M |
| LIVINGSTON HEALTHCARE | 81-0378200 | LIVINGSTON | 2 | 978 | $32.5M |
| MISSOULA BONE & JOINT, LLC | 84-1392819 | MISSOULA | 2 | 364 | $32.0M |
| TOWN AND COUNTRY FOODS, INC. ESOP | 81-0440194 | BOZEMAN | 2 | 649 | $31.9M |
| ANESTHESIA PARTNERS OF MONTANA, PC | 81-0478374 | BILLINGS | 1 | 31 | $31.8M |
| BRIDGER ORTHOPEDICS AND SPORTS MEDICINE, P.C. | 81-0512911 | BOZEMAN | 2 | 252 | $30.9M |
| GLENDIVE MEDICAL CENTER | 81-6016016 | GLENDIVE | 1 | 380 | $30.4M |
| ORTHO MONTANA, PSC | 81-0303109 | BILLINGS | 3 | 303 | $30.1M |
| ROCKY MOUNTAIN ELK FOUNDATION, INC. | 81-0421425 | MISSOULA | 2 | 394 | $29.8M |
| RIVERSIDE CONTRACTING, INC. | 81-0393633 | MISSOULA | 2 | 468 | $29.7M |
| GALLATIN VALLEY ANESTHESIA ASSOCIATES, P.C. | 13-4310888 | BOZEMAN | 1 | 35 | $29.4M |
| NEPTUNE AVIATION SERVICES INC. | 81-0483816 | MISSOULA | 2 | 399 | $28.7M |
| REC ADVANCED SILICON MATERIALS, LLC | 20-3097239 | SILVER BOW | 1 | 76 | $28.6M |
| JACKSON CONTRACTOR GROUP, INC. | 81-0535453 | MISSOULA | 3 | 693 | $28.2M |
| NORTHSTAR MEDICAL MANAGEMENT, INC. | 81-0538539 | MISSOULA | 2 | 329 | $28.1M |
| ONXMAPS, INC. | 27-1223662 | MISSOULA | 2 | 887 | $28.0M |
| CENTURY COMPANIES, INC. | 81-0359330 | LEWISTOWN | 2 | 366 | $27.6M |
| WYO-BEN, INC. | 81-0291876 | BILLINGS | 2 | 444 | $27.6M |
| YELLOWSTONE CLUB OPERATIONS, LLC | 27-0412610 | BOZEMAN | 2 | 1,610 | $27.0M |
| SIGNAL PEAK ENERGY, LLC | 26-2998847 | ROUNDUP | 1 | 264 | $26.7M |
| JUNKERMIER, CLARK, CAMPANELLA, STEVENS, P.C. | 81-0348775 | GREAT FALLS | 2 | 217 | $26.1M |
| PFL TECH, INC | 81-0512202 | LIVINGSTON | 6 | 882 | $25.0M |
| NORTHERN ROCKIES ANESTHESIA CONSULTANTS, PLLC | 81-0544884 | KALISPELL | 1 | 29 | $24.9M |
| COMMUNITY HOSPITAL OF ANACONDA | 81-0303913 | ANACONDA | 2 | 919 | $24.4M |
| ST. LUKE COMMUNITY HOSPITAL AND NURSING HOME | 81-0221486 | RONAN | 3 | 943 | $23.9M |
| COMMUNITY, COUNSELING, AND CORRE | 81-0413419 | BUTTE | 3 | 994 | $23.7M |
| CENTRAL MONTANA MEDICAL CENTER | 23-7169043 | LEWISTOWN | 2 | 527 | $23.2M |
| UNITED MATERIALS OF GREAT FALLS | 81-0406935 | GREAT FALLS | 2 | 296 | $22.8M |
| THE YELLOWSTONE BANK | 81-0211310 | BILLINGS | 1 | 113 | $22.2M |
| NORTHWEST IMAGING, P.C. | 81-0347382 | KALISPELL | 1 | 22 | $22.1M |
| MENHOLT AUTOMOTIVE GROUP | 81-0449357 | BILLINGS | 2 | 960 | $22.1M |
| BROWNING, KALECZYC, BERRY & HOVEN, P.C. | 81-0431116 | HELENA | 1 | 44 | $21.6M |
| CENTRAL PLUMBING AND HEATING CO INC | 81-0285765 | GREAT FALLS | 1 | 165 | $21.3M |
| CLEARWATER FEDERAL CREDIT UNION | 81-0289023 | MISSOULA | 7 | 1,201 | $20.9M |
| ALPS CORPORATION | 81-0446756 | MISSOULA | 1 | 93 | $19.9M |
| WHITEFISH CREDIT UNION ASSOCIATION | 81-0208730 | WHITEFISH | 3 | 603 | $19.9M |
| GREAT WEST ENGINEERING, INC. | 20-2501633 | HELENA | 1 | 104 | $19.9M |
| CROWN ENTERPRISES, INC. | 81-0304838 | KALISPELL | 2 | 196 | $19.6M |
| BALLARD PETROLEUM HOLDINGS LLC | 84-1386329 | BILLINGS | 1 | 45 | $19.5M |
| BARRETT HOSPITAL & HEALTHCARE | 26-4230898 | DILLON | 2 | 409 | $19.4M |
| WGM GROUP, INC. | 81-0382876 | MISSOULA | 1 | 102 | $19.1M |
| FEIST WATSON ENTERPRISES | 81-0379981 | MISSOULA | 2 | 433 | $18.9M |
| A&E DESIGN, INC. | 81-0468180 | BILLINGS | 1 | 105 | $18.9M |
| MONTANA STATE UNIVERSITY FOUNDATION, INC. | 81-6001649 | BOZEMAN | 2 | 72 | $18.3M |
| INVESTECH RESEARCH, LLC | 26-2228079 | WHITEFISH | 1 | 19 | $18.2M |
| LANGLAS & ASSOCIATES, INC. | 42-1037529 | BILLINGS | 1 | 181 | $17.8M |
| LOENBRO, LLC. | 38-3924889 | BLACK EAGLE | 2 | 1,897 | $17.3M |
| GLACIER MEDICAL ASSOCIATES | 81-0350909 | WHITEFISH | 1 | 68 | $17.2M |
| GLACIER EYE CLINIC, P.C. | 81-0401208 | KALISPELL | 1 | 84 | $16.9M |
| WIRELESS COMMUNICATIONS, INC. | 81-0517862 | BILLINGS | 2 | 425 | $16.8M |
| A & I DISTRIBUTORS OF BILLINGS ESOP PLAN | 81-0236090 | BILLINGS | 3 | 516 | $16.6M |
| MONTANA CHILDRENS HOME & HOSPITAL | 81-0231789 | HELENA | 2 | 586 | $16.5M |
| CSWW, INC. | 91-1850234 | GREAT FALLS | 2 | 1,540 | $16.4M |
| RESSLER MOTOR COMPANY | 81-0522998 | BOZEMAN | 2 | 532 | $16.3M |
EINs are drawn from the Form 5500 the employer filed with the U.S. Department of Labor. An employer’s EIN is the same across all of its plans — open a filing to confirm the sponsor name and address before relying on it.
How to find an employer’s EIN in Montana
Every employer that sponsors a retirement or health plan files a Form 5500 that lists its nine-digit Employer Identification Number. Find a Montana company in the table above, or run a Form 5500 search by company name to pull the filing and read the EIN directly from it.
For a broader view of plans in the state — including industry breakdowns and the largest plans by assets — see Form 5500 plans in Montana. New to these filings? Start with What is Form 5500?