| # | Company | Employees |
|---|---|---|
| 1 |
First Interstatefirstinterstatebank.com
Community bank offering banking and wealth management services in multiple states Committed to supporting communities through financial services, volunteerism, and philanthropy |
5,559 |
| 2 |
Montana State University-Bozemanmontana.edu
A state land-grant institution providing excellent education, cutting-edge research, and community service to prepare students for successful careers and further education |
5,436 |
| 3 |
Consumer Direct Care Networkconsumerdirectcare.com
CDCN supports individuals who self-direct their in-home personal care, providing quality services to help people of all ages live independently in their communities |
4,881 |
| 4 | 3,824 | |
| 5 |
State of Montanamt.gov
This company in Montana aims to build a skilled workforce by attracting creative and competent employees who value diversity and innovation |
3,639 |
| 6 |
Charlie Healthcharliehealth.com
Virtual mental health provider for teens and young adults offering intensive outpatient programs with supported groups, individual therapy, and family therapy |
3,204 |
| 7 |
Billings Clinicbillingsclinic.com
A leading integrated healthcare system with a Level I Trauma Center in Montana, offering multi-specialty care and partnerships with regional hospitals |
2,830 |
| 8 |
Glacier Bancorp, Inc.gbcijobs.com
A regional bank holding company that values employees, community involvement, and personalized service while providing financial stability and soundness |
2,318 |
| 9 |
Hospital Pharmacist Jobshospitalpharmacistjobs.com
HPJ specializes in providing top-notch pharmacy professionals, carefully screening and evaluating candidates before referring them to clients Expert recruiters match ideal candidates to specific needs |
1,679 |
| 10 |
Benefis Health Systembenefis.org
A not-for-profit community health system with over 530 beds, 3,000 employees, and 250 physicians providing a wide range of programs and services for residents |
1,540 |
| 11 |
D.A. Davidson Companiesdadavidson.com
A diversified financial services company offering personalized solutions through wealth management, investment banking, and trust services with a focus on client success and community responsibility |
1,491 |
| 12 |
Mindbodymindbodyonline.com
Specializing in empowering fitness and wellness establishments to efficiently connect with a larger consumer base for improved reach and effectiveness |
1,444 |
| 13 |
Bozeman Healthlinktr.ee
Integrated healthcare delivery system serving an eight-county region in Southwest Montana, providing expert, compassionate health and wellness services across diverse healthcare needs |
1,389 |
| 14 |
Electrical Consultants, Inc.eciusa.com
National provider of transmission, substation, and distribution solutions for renewable energy sectors, with a team of over 800 professionals nationwide |
1,374 |
| 15 |
Logan Healthlogan.org
Health system with six hospitals, over 50 provider clinics, and rural air ambulance service, providing exceptional care to communities for over 100 years |
1,284 |
| 16 |
Town Pump Companytownpump.com
A Montana-based company dedicated to providing excellent customer service and hospitality, supporting community programs, and preserving the environment through innovative technology and practices |
1,167 |
| 17 |
Great Harvest Bread Co.greatharvest.com
A company specializing in real, whole grain bakery products, supporting small business owners, and offering a unique, locally-owned bakery cafe experience |
1,094 |
| 18 |
Community Medical Centercommunitymed.org
A leading healthcare organization offering a wide range of medical services including emergency care, obstetrics, pediatrics, rehabilitation, and specialized intensive care units |
1,021 |
| 19 |
NorthWestern Energynorthwesternenergy.com
A leading energy provider serving Montana, South Dakota, and Nebraska with electricity and natural gas for over 100 years |
999 |
| 20 |
Billings Public Schoolsbillingsschools.org
A large educational institution serving over 16,000 students across 33 schools within the Billings area |
916 |
| 21 |
Frialtofrialto.com.br
A leading company in the food industry specializing in fresh beef, Frialto has experienced continuous growth and expansion since 1996 |
879 |
| 22 |
Kalispell Regional Healthcarelogan.org
A leading health care system in Montana, offering a wide range of medical services to over 200,000 people across a large geographic area |
828 |
| 23 |
Murdoch's Ranch & Home Supplymurdochs.com
A family of stores dedicated to providing quality western merchandise, exceptional service, and value to customers across multiple states with a friendly, knowledgeable team |
825 |
| 24 |
Yellowstone Clubyellowstoneclub.com
A private residential community in the Rocky Mountains offering world-class skiing, golf, outdoor adventures, and sought-after employment opportunities in Southwest Montana |
820 |
| 25 |
Head Start, Inc.billingsheadstart.org
The company provides comprehensive services to support school readiness and lifelong success for young children and families in Yellowstone and Carbon counties |
808 |
| 26 |
Majo Dias Coach
Specializes in providing coaching services for individuals looking to improve their basketball skills and reach their full potential in the sport |
794 |
| 27 |
HuHot Mongolian Grillhuhot.com
A national Asian stir fry concept offering create-your-own meals cooked on a scorching hot grill, focusing on fresh food, signature sauces, and great service |
788 |
| 28 |
ATTOattosementes.com.br
Leader in soybean and millet seed production in Brazil with a focus on honesty, sustainability, and respect for human beings Revolutionizing productivity with ATTO Intelligence Join us! |
778 |
| 29 |
Big Sky Resortbigskyresort.com
This resort offers expansive skiing terrain, lodging, meeting spaces, and easy access to Yellowstone National Park, located in Montana |
735 |
| 30 |
Barnardbarnard-inc.com
Heavy-civil construction company specializing in projects worldwide, including dams, reservoirs, tunnels, pipelines, and environmental construction, all built for the benefit of communities |
715 |
| 31 |
Sibanye Stillwatersibanyestillwater.com
This company operates mines in Montana to extract and process platinum group metals, primarily producing palladium and platinum, with a focus on sustainability and recycling |
688 |
| 32 |
Montana State University Billingsmsubillings.edu
Providing transformative education focused on empowering students from diverse backgrounds to succeed and impact the evolving global economy. |
656 |
| 33 |
Montana Technological Universitymtech.edu
A specialized university offering degrees in science and engineering, with a historical focus on mining, natural resources, and energy development |
646 |
| 34 |
Great Falls Public Schoolsgfps.k12.mt.us
This organization provides quality education to students, emphasizing individual needs, equitable opportunities, and a safe, nurturing environment for lifelong learning |
624 |
| 35 |
Montana Department of Transportationmdt.mt.gov
The company plans, builds, operates, and maintains a safe transportation infrastructure in Montana to move the state forward with innovation and effectiveness |
615 |
| 36 |
Cushing Terrellcushingterrell.com
A multidisciplinary design firm offering architecture, engineering, and design services to create sustainable, innovative spaces for various projects nationwide |
605 |
| 37 |
Missoula County Public Schoolsmcps.k12.mt.us
A public school district in Missoula County, MT focused on achieving excellence and equity for all students through innovative programs and community involvement |
598 |
| 38 |
St. Peter's Healthsphealth.org
A nonprofit health care system in Helena, Montana, offering hospital, clinics, cancer treatment, behavioral health, urgent care, home health, hospice, dialysis, and ambulance services |
590 |
| 39 |
Carroll Collegecarroll.edu
A Catholic liberal arts college in Montana offering academically rigorous, affordable education with a focus on service outreach and study abroad |
575 |
| 40 |
Kampgrounds of America, Inc.koa.com
The company is a leading outdoor hospitality franchisor with over 500 locations, specializing in camping experiences and innovative guest services |
570 |
| 41 |
onXmaps, Inc.onxmaps.com
The company pioneers outdoor navigation tools, data, and experiences to empower adventurers, while also preserving and improving access to public lands |
484 |
| 42 |
Stockman Bank of Montanastockmanbank.com
Montana-based bank focused on building relationships through integrity, expertise, and results Offers a range of financial services and community support |
460 |
| 43 |
Sicredi Integração MT / AP / PAsicredi.com.br
A cooperative with over 34 years of experience, serving more than 120,000 members through 23 branches in Mato Grosso, Amapá, and Pará |
440 |
| 44 |
Journey Churchjourneyweb.net
A spiritual family guiding individuals to be devoted followers of Jesus through online livestreams and on-site services at The Commons |
420 |
| 45 |
Montana Army National Guardmontanaguard.net
Military organization based in Fort Harrison, Montana, serving as the headquarters for the Montana National Guard |
396 |
| 46 |
Rocky Mountain Collegerocky.edu
A historic college in Montana offering liberal arts education, practical career training, and a diverse campus experience in Billings |
390 |
| 47 |
City of Billingsbillingsmt.gov
This entity manages official content on LinkedIn for the City of Billings, providing updates and information to the public |
388 |
| 48 |
FACULDADE FASIPEfasipe.com.br
A dynamic and bold higher education institution in Mato Grosso offering authorized undergraduate and graduate programs to meet workforce demands |
385 |
| 49 |
Montana State Fundmontanastatefund.com
Montana State Fund provides competitive salaries and benefits, promoting work-life balance in a challenging, fast-paced environment with various career opportunities |
379 |
| 50 |
Marsh McLennan Agency Northwestlinkedin.com
Company account inactive, encourages followers to connect with new LinkedIn handle for updates and continued engagement. |
374 |
| 51 |
Missoula Countymissoulacounty.us
Missoula County delivers public services to safeguard the well-being of residents, communities, and the environment, striving for thriving and potential realization |
373 |
| 52 |
S&K Technologies, Inc.sktcorp.com
A professional services firm providing federal and commercial support with 8(a) and HUBzone certifications, owned by CSKT and impacting tribal shareholders |
369 |
| 53 |
Morrison-Maierlem-m.net
A multidisciplinary consulting firm providing expertise in engineering, planning, surveying, and science to build better communities through collaboration and integrity |
365 |
| 54 |
Flathead Valley Community Collegefvcc.edu
An educational institution in Northwest Montana offering exceptional education, financial aid, and vibrant campus life to prepare students for success |
360 |
| 55 |
Instituto Federal de Educação, Ciência e Tecnologia de Mato Grossoifmt.edu.br
The Instituto Federal de Educação, Ciência e Tecnologia de Mato Grosso offers public higher, basic, and professional education specialized in vocational and technological programs in Mato Grosso |
357 |
| 56 |
AWARE Inc.aware-inc.org
AWARE is a nonprofit in Montana providing community support for individuals with mental health and developmental disabilities, children, and families |
357 |
| 57 |
Great Falls Hospitalgfclinic.com
A multi-specialty medical practice providing primary care, specialties, and urgent care in north central Montana with a focus on teamwork and quality healthcare |
356 |
| 58 |
Mobile Mechanic
An automotive company based in Lewistown, Montana, providing mobile mechanic services for on-the-go vehicle repairs and maintenance |
355 |
| 59 |
Pacific Steel and Recyclingpacific-steel.com
A customer-centered company providing steel and recycling services for over 120 years, with a strong commitment to communities and employee well-being |
354 |
| 60 |
Montana Fish, Wildlife & Parksfwp.mt.gov
A government agency in Montana that protects fish, wildlife, and state parks, enforces laws, and promotes safe recreational use of resources |
353 |
| 61 |
Sletten Construction Companyslettencompanies.com
Employee-owned construction firm providing innovative solutions to clients' challenges in various sectors like commercial, industrial, corrections, bridge, solar, and virtual construction management |
344 |
| 62 |
Município de Cuiabácuiaba.mt.gov.br
The company is based in Cuiabá, Brazil, and is a leading industrial, commercial, and service hub in the state, known for its abundant greenery |
342 |
| 63 |
North 40 Outfitters - CSWW, Inc.north40.com
A family-owned retailer focused on providing top customer service, embracing diversity, valuing employees, and promoting growth within the company |
338 |
| 64 |
Allegiance Benefit Plan Management, Inc.askallegiance.com
A leading benefit plan management company serving employer groups with health and flexible benefit plans, emphasizing outstanding customer service and cost control |
335 |
| 65 | 327 | |
| 66 |
Western Montana Mental Health Centerwmmhc.org
A behavioral health center in Montana providing comprehensive services to individuals and families since 1971, with a focus on improving access and outcomes |
327 |
| 67 |
Pão & Artepaoearte.com
A leading frozen food manufacturer specializing in French rolls, sweet bread, cheese bread, and more, prioritizing quality ingredients and traditional recipes |
324 |
| 68 |
Taurus Floodthinktaurus.com
A leading flood insurance vendor providing critical protection against natural disasters, servicing over 24 million policies annually with innovative solutions |
318 |
| 69 |
Helena School District No 1helenaschools.org
A school district in Montana with 1200 dedicated professionals shaping the success of students, families, and the community at large |
313 |
| 70 |
CITY OF MISSOULAci.missoula.mt.us
Provision of municipal services, infrastructure, and community development through a diverse workforce dedicated to enhancing quality of life and equity for all residents. |
302 |
| 71 |
City Brew Coffeecitybrew.com
A specialty coffee company roasting and brewing top 2% beans worldwide for unique blends, offering beverages, treats, and wholesale opportunities across the western US |
255 |
| 72 |
Dick Anderson Constructiondaconstruction.com
This company offers design-build and construction management services for civil, industrial, commercial projects, and luxury homes |
249 |
| 73 |
Opportunity Bank of Montanaopportunitybank.com
A community bank with over $18 billion in assets, providing banking, mortgage, agriculture, and digital services while actively supporting Montana communities |
240 |
| 74 |
EPC Services Companyeciusa.com
A leading EPC firm specializing in electrical testing, maintenance, and services for utilities and the energy industry since 2000 |
224 |
| 75 |
National Forest Foundationnationalforests.org
The organization collaborates with communities and organizations to conserve and enhance the 193-million-acre National Forest System through various conservation and stewardship programs |
213 |
| 76 |
Glacier Bankglacierbank.com
A community-focused bank offering a full range of financial services and products with a strong emphasis on personalized service and community support |
213 |
| 77 | 203 | |
| 78 | 186 | |
| 79 |
Bozeman High Schoolbsd7.org
A top-ranked high school in Bozeman with over 1800 students, award-winning teachers, and successful academic and sports programs Mascot is the Hawk |
185 |
| 80 |
Rib & Chop Houseribandchophouse.com
A restaurant group specializing in high-quality food and exceptional service, spreading "Rocky Mountain Hospitality" through multiple Rib & Chop House locations nationwide |
185 |
| 81 |
COP Construction LLCcopconstruction.com
General Contractor specializing in highway bridge, heavy concrete, civil works, industrial, water, and sewer construction, serving public and private owners in multiple states |
184 |
| 82 |
DJ&Adjanda.com
A professional services consulting firm providing multidisciplinary services such as civil engineering, environmental planning, GIS, and construction management across the nation |
179 |
| 83 |
XYPNxyplanningnetwork.com
XYPN enables fee-for-service financial advisors to build independent firms with autonomy through advocacy, education, technology, compliance, community, and support services |
178 |
| 84 |
Mann Mortgage NMLS # 2550mannmortgage.com
A mortgage company based in Montana, providing personalized service to help borrowers achieve home ownership with a focus on simplicity |
177 |
| 85 |
A Plus Health Care, Incaplushc.com
Provider of high quality home health care services and supplemental staffing across Montana, with a commitment to respect for clients and community |
176 |
| 86 |
Whitefish Mountain Resortskiwhitefish.com
A resort in Montana offering skiing in winter with spacious slopes and breathtaking views, and thrilling activities like zip lining and mountain biking in summer |
175 |
| 87 |
Wildfire Defense Systems, Inc.wildfire-defense.com
A national leader in insurer wildfire services, offering consulting, emergency response suppression services, property risk analysis, and structure protection across the US |
174 |
| 88 |
RightNoworacle.com
Acquired by Oracle in 2011, this company specializes in customer service software solutions |
174 |
| 89 |
GLENDIVE MEDICAL CENTERgmc.org
A leading healthcare provider in east central Montana and western North Dakota offering acute care, emergency services, skilled nursing, assisted living, and long-term care |
172 |
| 90 |
NORTHERN MONTANA HOSPITALnmhcare.org
A medical practice company located in Havre, Montana, providing healthcare services to the community |
172 |
| 91 | 171 | |
| 92 |
Anderson ZurMuehlenazworld.com
A Montana-based CPA and business advisory firm with over 60 years of experience, offering personalized solutions to help clients succeed financially |
170 |
| 93 |
Bridger Photonicsbridgerphotonics.com
Leader in methane detection with Gas Mapping LiDAR™ technology, providing precise leak detection for oil and gas infrastructure Also develops precision metrology products Located in Bozeman, MT |
170 |
| 94 |
Montana Department of Revenuerevenue.mt.gov
The department administers state taxes, establishes property values, manages liquor sales, returns unclaimed property, and advises on tax issues for Montana |
168 |
| 95 |
JCCS PCjccscpa.com
An accounting and advising firm providing tax, audit, and advisory services to individuals and businesses with a focus on vision, integrity, and accuracy |
166 |
| 96 |
Community Hospital of Anacondacommunityhospitalofanaconda.org
A multidisciplinary team provides personalized healthcare services for all stages of life, including obstetrics, long-term care, home health, and hospice |
165 |
| 97 |
S&K Aerospace, LLCsktcorp.com
A tribally owned professional services company specializing in IT, aerospace, and engineering solutions for government and private clients, focused on customer satisfaction and economic development |
164 |
| 98 |
GRUPO VIANORTEgrupovianorte.com.br
A car dealership in northern Mato Grosso offering vehicles from Chevrolet, Honda, Nissan, Renault, and Jeep brands |
163 |
| 99 |
Service Stationgoservicestation.com
Glass industry trained sales representatives provide exceptional customer service and sell jobs to make businesses stand out in the market |
163 |
| 100 |
CITY OF GREAT FALLSgreatfallsmt.gov
Providing a high quality of life for residents in Great Falls, Montana through safe neighborhoods, great schools, recreational opportunities, and excellent healthcare facilities |
162 |
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Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Oct 24, 2026.
The same list elsewhere in United States
- The largest companies in the United States 91,669
- The largest companies in California 12,813
- The largest companies in New York State 10,485
- The largest companies in Texas 8,086
- The largest companies in Florida 4,945
- The largest companies in Illinois 4,175
- The largest companies in Pennsylvania 3,110
- The largest companies in Massachusetts 3,093
- The largest companies in Georgia 2,632
- The largest companies in Ohio 2,618
- The largest companies in New Jersey 2,569
- The largest companies in Virginia 2,503
- The largest companies in Michigan 2,346
- The largest companies in North Carolina 2,174
- The largest companies in Alabama 1,806
- The largest companies in Washington State 1,785
- The largest companies in Colorado 1,774
- The largest companies in Minnesota 1,700
- The largest companies in Maryland 1,527
- The largest companies in Wisconsin 1,482
- The largest companies in New York 6,920
- The largest companies in San Francisco 2,030
- The largest companies in Houston 1,791
- The largest companies in Chicago 1,668