| # | Company | Employees |
|---|---|---|
| 1 |
University of Wyominguwyo.edu
A nationally recognized educational and research institution with accomplished faculty, providing informative and engaging social media content for the Cowboy community |
4,998 |
| 2 |
State of Wyomingwyo.gov
Promotes natural beauty and adventurous spirit of the western region, inspiring freedom and exploration in visitors and residents alike. |
2,722 |
| 3 |
Sierrasierra.com
An outdoor gear retailer offering top brands at discounted prices, catering to customers looking for adventure and savings |
1,761 |
| 4 |
Child Development Centercdccasper.org
A caring and dedicated team of educators and caregivers who specialize in child development and building trust with families |
1,582 |
| 5 |
Laramie County School District #1laramie1.org
A school district in Wyoming with 34 schools and 13,000 students, providing high quality education in a safe environment to inspire lifelong learning and citizenship |
1,480 |
| 6 |
Cheyenne Regional Medical Centercheyenneregional.org
A healthcare system in Cheyenne, Wyoming, providing exceptional patient care and a full continuum of services from birth through end of life |
1,442 |
| 7 |
Lifetime Health & Fitness Centerlifetime307.com
This company provides health and fitness services in Casper, Wyoming for individuals looking to improve their overall well-being |
1,285 |
| 8 |
Partnership Leaderspartnershipleaders.com
A private network connecting over 1,500 top partner professionals, providing community, events, and resources to elevate partner teams within companies Apply for membership online |
1,249 |
| 9 |
Natrona County Schoolsnatronaschools.org
A public school district in Natrona County providing education for over 13,000 students in preschool through 12th grade with a commitment to individualized learning |
1,150 |
| 10 |
St. John's Medical Centerstjohns.health
A healthcare facility in Jackson, Wyoming offering a wide range of medical services, including acute care, long-term care, surgeries, and physician practices |
884 |
| 11 | 854 | |
| 12 | 790 | |
| 13 |
Wyoming Department of Healthhealth.wyo.gov
The company promotes, protects, and enhances the health of all Wyoming citizens through healthcare services and facilities in various communities |
754 |
| 14 |
Electrical Contractoronlinecareer360.com
An electrical/electronic manufacturing company based in Moorcroft, WY, specializing in electrical contracting services |
736 |
| 15 |
Admiral Beverage Corporationadmiralbeverage.com
A company producing and distributing a variety of premium beverages, with a focus on service, innovation, and community partnerships in the Mountain-West region |
732 |
| 16 |
Softvence Agencysoftvence.agency
A global web design and development agency creating innovative digital solutions for various industries, specializing in user-centric designs and comprehensive UX/UI services |
669 |
| 17 |
Jackson Hole Mountain Resortjacksonhole.com
Leading winter ski and snowboard resort in Jackson Hole, offering over 2500 acres of prime skiing and riding in North America |
651 |
| 18 |
Laramie County Community Collegewy.edu
Comprehensive community college in Wyoming offering academic, career, and community education programs with campuses in Cheyenne and Laramie |
650 |
| 19 |
Wyoming Medical Centerwyomingmedicalcenter.org
Flagship hospital in Wyoming, partnering with Banner Health Largest in state with multiple clinics, offering comprehensive heart, stroke, and trauma care for 11 counties |
614 |
| 20 |
Campbell County Healthcchwyo.org
Healthcare organization in Wyoming providing acute care, long-term care, and surgical services with a team of 80 healthcare professionals across 20 specialties |
613 |
| 21 |
Valatamvalatam.com
Valatam provides virtual team members, offering Virtual Assistants for small businesses and professionals to manage tasks and allow focus on business growth |
611 |
| 22 |
Internal Medicine Groupdhawy.com
An independent physician group in Cheyenne, WY offering internal medicine, endocrinology, pulmonary, lab and ultrasound services, as well as a top Ambulatory Surgical Center |
588 |
| 23 |
Casper Collegecaspercollege.edu
Public two-year institution offering academic transfer programs, career training, continuing education, and community support in Wyoming and beyond. |
587 |
| 24 |
miniOrangeminiorange.com
Innovative cybersecurity solutions provider specializing in IAM and CIAM, offering advanced security features and integrations for various platforms globally |
571 |
| 25 |
Careeristcareerist.com
An online career training platform backed by Y-Combinator, offering tech-focused training with career coaching, mentorship, internship opportunities, and job search automation tools |
552 |
| 26 |
Trihydro Corporationtrihydro.com
A Wyoming-based organization offering a wide range of environmental consulting, engineering, IT, and natural resource services to public and private clients nationwide |
551 |
| 27 |
TAKKIONtakkion.com
Premier independent provider of logistics, O&M, technical repair, and remanufacturing services for the renewable energy industry in North America |
544 |
| 28 |
St. John's Healthstjohns.health
A healthcare organization in Jackson, Wyoming offering a wide range of medical services including acute care, long-term care, physician practices, and more |
507 |
| 29 |
WYOMING DEPARTMENT OF TRANSPORTATIONdot.state.wy.us
A transportation agency in Wyoming focuses on planning, building, and maintaining highways, coordinating airport improvements, collecting fuel taxes, issuing licenses, enforcing traffic laws, and regulating commercial vehicles |
482 |
| 30 |
Carbon County School District Onecrb1.net
A school district in Rawlins, Wyoming serving over 1000 students in communities primarily dependent on the energy industry and other key employers |
481 |
| 31 |
BESb-eng-s.com
Specializing in construction design and BIM/VDC services for electrical and control systems, providing efficient and cost-effective solutions for various project types |
465 |
| 32 |
Western EcoSystems Technology, Inc. (WEST)west-inc.com
Providing environmental and statistical consulting services on a national and international scale, specializing in field ecology and statistical analysis to solve natural resource problems |
424 |
| 33 |
Northwest Collegenwc.edu
A public two-year residential college in Powell, Wyoming offering education and programs with outreach centers in Cody and Worland |
419 |
| 34 |
Sheridan Memorial Hospitalsheridanhospital.org
State-of-the-art hospital with top quality rating offers patient-centered care in northern Wyoming Skilled staff, latest technology, and emphasis on teamwork and communication |
406 |
| 35 |
WYOMING DEPARTMENT OF CORRECTIONSwdoc.jobs
The company focuses on managing offenders in a safe and humane manner, providing opportunities for rehabilitation, and fostering community safety through evidence-based strategies |
374 |
| 36 |
NR Consultingnrconsulting.com
Provides AI-led IT services, digital engineering, and workforce solutions, helping organizations build, operate, and scale with speed and intelligence across various industries. |
369 |
| 37 |
Ivinson Memorial Hospitalivinsonhospital.org
A provider of world-class healthcare in Wyoming since 1917, committed to promoting wellness, healing, clear communication, respect, and compassion |
368 |
| 38 |
Wyoming Machinery Companywyomingcat.com
Premiere Caterpillar equipment dealer in Wyoming, offering sales, rentals, parts, service, and power systems support for various industries |
367 |
| 39 |
Uinta County School District 1uinta1.com
A primary/secondary educational institution in Evanston, Wyoming, offering schooling and academic programs for students in Uinta County |
357 |
| 40 |
SM Technologysmtech24.com
Freelance-based digital agency specializing in UI/UX design, web development, and business administrative services for clients' online business growth. |
350 |
| 41 |
Western Wyoming Community Collegewesternwyoming.edu
A two-year institution in Wyoming offering affordable education, bachelor's degrees, associate degrees, certificates, workforce development, and community education classes |
346 |
| 42 |
Wyoming Army National Guardnationalguard.com
This company specializes in supporting and defending the nation through military service in the state of Wyoming |
341 |
| 43 |
TaxDometaxdome.com
Practice management software for accountants & tax professionals, integrating essential business functions into one platform for efficient workflow, client communication, and document storage |
327 |
| 44 |
Albany County School District #1acsd1.org
A K-12 school system in Laramie, Wyoming, providing education services to students in Albany County |
323 |
| 45 |
ByDzyne Incbydzyne.com
Innovative US-based company offering trendy products in wellness, training, travel, and e-commerce to empower individuals and transform lives |
301 |
| 46 |
Instantly.aiinstantly.ai
It provides automated outreach solutions, a deliverability network, sales engagement tools, a B2B lead database, and AI-powered CRM services. |
292 |
| 47 |
Lloyd's Maritime Institutelloydmaritime.com
An international maritime training provider offering advanced distance learning courses, recognized by leading organizations and providing professional assistance to trainees |
291 |
| 48 |
Joy Technologiesjoytechnologies.com
Innovative brand-building company turning ideas into impactful products and services, fueled by resources and a commitment to creation over fear of failure |
245 |
| 49 |
Cyclone Drilling Inccyclonedrilling.com
Oil and gas contractor specialized in horizontal/directional drilling and custom rig solutions for large companies in the Rocky Mountain Region |
233 |
| 50 | 223 | |
| 51 |
L&H Industrial, Inc.lnh.net
A global leader in custom manufacturing and services for heavy industrial machinery, offering technology innovations and comprehensive solutions across five continents |
220 |
| 52 |
Martinsburg Collegemartinsburgcollege.edu
A company offering accredited online education programs tailored to individual needs |
217 |
| 53 |
Epconepconpartners.com
Full-service EPC organization offering engineering, construction management, inspection, safety, and environmental services for energy and infrastructure projects across North America |
205 |
| 54 |
Green House Datalunavi.com
Managed services provider offering cloud hosting, colocation, and IT solutions to help businesses choose, deploy, and manage the platforms driving modern businesses |
199 |
| 55 |
Servixer, LLCservixer.com
The company specializes in customer engagement, actionable insights, experience design, marketing, and automotive transcription with a focus on driving customer satisfaction |
191 |
| 56 |
WWC Engineeringwwcengineering.com
Employee-owned professional firm specializing in transportation, municipal, civil, water resources, environmental, and surface mine engineering services with over 80 Rocky Mountain region employees |
184 |
| 57 |
Fine Dining Restaurant Groupjhfinedining.com
This company operates a group of fine dining restaurants, catering services, a bodega, and retail brands in Jackson Hole, emphasizing quality and seasonal ingredients |
182 |
| 58 |
Memorial Hospital of Converse Countyconversehospital.com
A critical access hospital in Douglas, Wyoming offering various medical services including family practice, OB, radiology, surgery, and rehabilitation for Converse County residents |
180 |
| 59 |
Powell Valley Healthcarepvhc.org
This organization provides healthcare services in the Big Horn Basin through a critical access hospital, physician clinics, assisted living, and walk-in care |
180 |
| 60 |
Bloedornsbloedornlumber.com
Provider of building supplies and materials for contractors and homeowners, offering a wide range of products for home improvement projects |
174 |
| 61 |
Wallick & Volk, Inc. NMLS #2973wvmb.com
A family-owned mortgage firm dedicated to helping individuals achieve homeownership, with a top national ranking and a close-knit company culture |
173 |
| 62 |
Fremont County School Dist. #25fremont25.org
Public school in Central Wyoming with 2,500 K-12 students and 550 employees across eight sites, surrounded by mountains, lakes, and rivers |
172 |
| 63 |
BULL IT SERVICES LLCbullitservices.com
Provider of staffing and recruiting services for companies in need of qualified personnel, connecting skilled individuals with suitable job opportunities |
172 |
| 64 |
Mood
A sustainable hemp company committed to quality and transparency Partnering with organic farms to produce superior hemp products for customer satisfaction |
172 |
| 65 |
Southensouthen.co
Specializing in providing project control and risk management solutions to optimize project performance and mitigate potential risks |
168 |
| 66 |
City of Gillettegillettewy.gov
A fast-growing community in Wyoming known for its coal production, contributing significantly to America's electrical generation needs Founded in 1892 |
165 |
| 67 |
Way2Classway2class.com
A comprehensive solution for content needs, offering services by a team of experts in content creation, design, editing, and animation |
165 |
| 68 |
Albany County Governmentalbanycountywy.gov
Specializing in services related to Albany County, Wyoming, including history, geography, and adjacent counties Serving the local community and beyond |
164 |
| 69 |
Blue Cross Blue Shield of Wyominggoogle.com
A not-for-profit health insurer in Wyoming, offering quality healthcare tailored to the state's unique needs, with a strong local presence |
162 |
| 70 |
Wyoming Highway Patrolwhp.wyo.gov
Specializing in accident reconstruction, advanced accident investigation, task force troopers, K-9 handlers, and comprehensive investigations |
159 |
| 71 |
Teton Countytetoncountywy.gov
A resort community in Wyoming with access to national parks, ski resorts, outdoor activities, wildlife, dining, and cultural arts offerings |
156 |
| 72 |
Star Valley Healthstarvalleyhealth.org
A leading healthcare facility providing high-quality, personalized care through state-of-the-art technology, strategic partnerships, and a range of medical services for residents |
153 |
| 73 |
Grand Targhee Resortgrandtarghee.com
Year-round resort nestled in the Teton Mountains offering world-class skiing, abundant snowfall, and extensive hiking and biking trails for a memorable experience |
150 |
| 74 |
Ur-Energy Inc.ur-energy.com
Dynamic junior mining company operating ISR uranium facilities in WY Engages in acquisition, exploration, and development of uranium properties Shares trade on NYSE MKT and TSX |
149 |
| 75 |
Teton Science Schoolstetonscience.org
This company provides transformative place-based education through independent schools, field education programs, and educator development in Wyoming and Idaho |
149 |
| 76 |
cxpertscxperts.us
A global omnichannel customer experience provider offering contact center solutions and work-at-home options to deliver exceptional CX for brands |
149 |
| 77 |
Health and Social Services
This organization is dedicated to safeguarding American's health and providing vital human services to those most in need |
149 |
| 78 |
Wyoming Department of Environmental Qualitydeq.wyoming.gov
This government administration company based in Wyoming oversees environmental quality regulations and initiatives in the state |
148 |
| 79 |
BlueNotarybluenotaryonline.com
A leading eClosing platform offering on-demand, blockchain-secured notarizations, allowing for digitized and automated processes with in-house notary team integration |
148 |
| 80 |
HUB Internationalhubinternational.com
Provider of property and casualty insurance, life and health insurance, employee benefits, and risk management solutions in the Mountain States Region Offering personal and commercial insurance coverage |
146 |
| 81 |
Bare Minerals Llc
A cosmetics company based in Sheridan, Wyoming, specializing in bare mineral products |
146 |
| 82 |
Prime One Globalprimeone.lk
An award-winning performance marketing agency specializing in digital transformation and brand activation for leading global brands and Fortune 500 companies |
120 |
| 83 |
Silver Star Communicationssilverstar.com
A technology-driven company in rural areas, providing advanced fiber-optic network services including broadband, phone systems, cloud solutions, IT networking, and security |
117 |
| 84 |
Right Pace Techmedia, LLCrptechmedia.com
A tech-centric B2B email marketing agency, providing lead generation, email marketing, database building, and content syndication services to technology brands globally |
88 |
| 85 |
Premier Bone & Joint Centerspremierboneandjoint.com
Specializing in orthopedic care, our experienced team provides compassionate treatment, rehabilitation, and quality care to patients across Wyoming and neighboring communities |
86 |
| 86 |
Hamzah LLChamzahllc.com
This company specializes in expert outsourcing of software development, offering services such as custom app development and cloud migration to drive digital transformation |
79 |
| 87 |
ATACANA GROUP Inc.atacana.com
Global strategy and intelligence firm specializing in healthcare industry, providing advice on value creation, innovation, and critical business decisions for exponential growth |
70 |
| 88 |
Empaxco Solutions LLCempaxco.com
Specializing in lead generation, we provide high-quality pre-qualified exclusive leads through various marketing strategies to help businesses grow and improve lead performance |
59 |
| 89 |
digiBlitz Holdingsdigiblitz.com
A technology company incubating, accelerating, and scaling start-ups to become unicorn companies through unique engagement methodologies and global expansion strategies |
55 |
| 90 |
First Federal Bank & Trustefirstfederal.bank
A mutual bank focused on serving communities by reinvesting profits instead of paying stockholders |
53 |
| 91 |
WebCEOwebceo.com
A leading provider of white-label SEO software, offering cloud-based tools for keyword research, rank tracking, site auditing, and web promotion |
51 |
| 92 |
Raccoon LLCraccoon.pet
Digital consulting agency specializing in e-commerce services, known for providing innovative solutions and strategies to improve site performance, UX design, and launching/replatforming ecommerce sites |
48 |
| 93 |
Devntechdevntech.com
This company specializes in developing custom web solutions tailored to meet the specific needs and goals of clients |
42 |
| 94 | 41 | |
| 95 |
Wyoming Refining Companyparpacific.com
Energy and infrastructure company, focused on acquiring, developing, and operating businesses in complex markets with refining, logistics, and retail operations in Hawaii and the Pacific Northwest/Rockies regions |
41 |
| 96 |
NobelBizยฎnobelbiz.com
It provides innovative voice services and cloud solutions for contact centers, transforming them into intelligent centers for various business functions. |
36 |
| 97 |
Fulcrumfulcrum.rocks
Design & development team from Ukraine specializing in web and mobile applications using modern frameworks Services include MVP, ongoing development, and technology partnerships |
35 |
| 98 |
Celata Tech Inc.celatatech.com
A geographic intelligence platform specializing in data quality, integration, location analytics, and data enrichment to help enterprises with informed business decisions |
34 |
| 99 |
WellDogwelldog.com
A privately held company using innovative technologies to improve exploration and production of oil, gas, and alternative energy resources, specializing in unconventional natural gas production |
32 |
| 100 |
Prime Movers Labprimemoverslab.com
Venture capital firm investing in scientific startups with transformative potential in energy, infrastructure, transportation, agriculture, manufacturing, and human augmentation sectors |
29 |
Turn this list into pipeline
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How this list is built
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