Form 5500 Search

Wyoming Employer EIN Lookup

Use this WyomingEIN lookup to find an employer’s Employer Identification Number from its public Form 5500 filing. 1,896 employers based in Wyoming have filed a Form 5500, covering 2,089 retirement and health plans with $3.5B in reported assets. The largest are listed below with their EIN — open any employer to see the full filing.

Employers
1,896
Plans
2,089
Total assets
$3.5B

Largest employers in Wyoming by EIN

Form 5500 search →
EmployerEINCityPlansParticipantsAssets
True Drilling LLC83-0171045Casper32,725$230.2M
Admiral Beverage Corporation83-0210359Worland23,911$168.6M
Wyoming Machinery Company87-0217645Casper21,447$146.6M
Trihydro Corporation83-0272860Laramie21,131$114.6M
Blue Cross & Blue Shield of Wyoming83-0231011Cheyenne61,492$86.2M
Ivinson Memorial Hospital30-0975387Laramie62,360$58.4M
Neiman Enterprises, Inc.83-0303167Hulett1412$47.8M
Wyoming Beverages, Inc.83-0207150Worland1354$42.7M
Hilltop National Bank83-0202762Casper4494$42.5M
L & H Industrial, Inc.83-0202726Gillette2455$39.0M
Mountain West Farm Bureau Mutual Insurance Company83-0181634Laramie61,133$36.7M
Union Telephone Company83-0184092Mountain View3634$34.9M
Jackson HOLE Mountain Resort Corporation83-0202584Teton Village22,022$33.4M
Bloedorn Lumber Company84-0150670Torrington41,065$33.2M
Wyoming Cardiopulmonary Services, P.C.83-0238247Casper275$31.9M
Epoch.COM, LLC56-2432338Wilson159$30.4M
Power Resources, Inc.84-1125472Douglas177$28.6M
Blue Federal Credit Union83-0173508Cheyenne51,616$28.5M
Trona Valley Community Federal Credit Union83-0204001Green River2160$28.4M
North Platte Physical Therapy Services, Inc.83-0283425Douglas2245$27.2M
GEM City BONE & Joint, P.C.83-0219655Laramine2265$27.0M
Western Water Consultants, Inc.83-0250392Sheridan2212$26.5M
Cheyenne Radiology Group, P.C.83-0215517Cheyenne154$26.4M
Takkion OPS Management LLC86-3311896Evansville11,621$26.0M
Silver Star Telephone Company83-0175366Freedom2267$23.6M
First Northern Bank of Wyoming83-0107485Buffalo6390$23.6M
Casper Orthopaedic Associates, PC83-0231437Casper2203$23.5M
Emergency Medical Physicians, PC27-1239241Casper224$23.1M
Lenhart, Mason & Associates, LLC83-0327383Casper131$22.9M
Kemmerer Operations, LLC83-4720470Kemmerer2372$22.5M
Orthopaedics of Jackson HOLE, PC83-0322741Jackson HOLE138$22.2M
The Spence Law Firm, LLC83-0230654Jackson266$21.5M
Plenty Unlimited Inc.81-1900916Laramie2391$21.5M
Casper Orthopaedic Associates, PC83-0232125Casper193$20.6M
Fremont Motor Company, Inc.83-0105743Lander2592$19.2M
National Outdoor Leadership School83-0204184Lander2932$19.0M
Cyclone Drilling, Inc.83-0222580Gillette2607$19.0M
Silver SPUR Operating Company, L.L.C.83-0325505Encampment2420$18.8M
First Federal Bank & Trust83-0117790Sheridan178$16.9M
Buffalo Bill Memorial Association83-0180403CODY281$16.7M
Visionary Communications, Inc.83-0313552Gillette1219$16.5M
Natural Gas Processing Co.83-0221532Worland176$16.2M
Searle Bros. Construction Co.83-0218233Rock Springs170$15.7M
CRUM Electric Supply Company83-0235211Casper178$14.2M
Black Hills Bentonite, LLC83-0295902Mills186$13.3M
Reiman Corp.83-0164081Cheyenne2136$12.8M
Stride Learning Center83-0216252Cheyenne183$12.7M
BOT-Operating Engineers Local 800 & Wyoming Contractors' Assoc. Inc.83-6011320Casper10$12.4M
TP&L Management, LLC84-3943450Casper22,767$12.0M
Horizon Communications, Inc.20-3083371Freedom1116$11.9M
Registered Agents, Inc.45-4233872Sheridan33,181$11.5M
Groathouse Construction Inc.83-0246634Laramie147$11.4M
The Bank of Star Valley83-0315143Afton136$11.2M
WOLD Oil Properties, LLC83-0260586Casper116$11.2M
Frontier Asset Management, LLC83-0331917Sheridan144$11.1M
Cheyenne Skin Clinic, LLP26-3996650Cheyenne275$11.0M
Automation & Electronics, Inc.83-0186493Casper162$11.0M
Elastic Inc.27-3317267Jackson181$10.6M
Williams Porter Day and Neville P.C.20-3695528Casper132$10.5M
Wyoming Surgical Associates, P.C.83-0258707Casper221$10.3M
Community Health Center of Central Wyoming, Inc.83-0326307Casper2219$9.8M
Powder River Heating and Air Conditioning, Inc.83-0242401Gillette188$9.8M
Schwartz, BON, Walker & Studer83-0232549Casper29$9.6M
Uniwyo Federal Credit Union83-0184377Laramie2213$9.1M
Western Ecosystems Technology, Inc.83-0294092Cheyenne2889$9.0M
Casper Medical Imaging, P.C.83-0212463Casper193$8.9M
Sunlight Federal Credit Union83-0178224CODY261$8.8M
Teton Science Schools83-0219163Jackson2181$8.6M
Child Development Center of Natrona County83-0207123Casper1120$8.3M
Roberts Aircraft Co.82-0225558Cheyenne3308$8.3M
Meridian Trust Federal Credit Union83-0179749Cheyenne3249$8.2M
Engineering Associates83-0211787CODY158$7.8M
Cumming Management Company20-2712356Jackson190$7.5M
Jorgensen Associates, Inc.83-0255572Jackson172$7.5M
Kirkwood Oil & Gas, LLC26-2619621Casper132$7.5M
Mountain States Pressure Service, Inc.83-0324066Rock Springs172$7.4M
RNB State Bank83-0141300Rawlins146$7.3M
G.K. Construction, Inc.83-0250856Lovell1124$7.0M
Mechanical Systems, Inc.83-0270487Cheyenne157$7.0M
STG, Inc.27-1409433Riverton111$6.9M
Geittmann Larson Swift, LLP81-4532131Jackson114$6.7M
71 Construction83-0237644Casper146$6.7M
MPI Warehouse Specialty Co., Inc.83-0218077Casper222$6.7M
3arches Management, Inc.83-0332700Rock Springs164$6.6M
ELK Country Motels, Inc.83-0200489Jackson183$6.6M
Aspen Travel, Inc.83-0278623Jackson118$6.4M
Pacific Marine Logistics, Inc.26-1475173Jackson112$6.4M
Western Research Institute74-2269704Laramie125$6.3M
Capital Business Systems, Inc.83-0281045Cheyenne175$6.3M
Registered Agents, Inc.45-4238872Sheridan1797$6.2M
Moser Engine Service, Inc. DBA Moser Energy System83-0221447Evansville3133$6.1M
Sherwood Group, Inc. DBA Sheridan Physican Therapy83-0326578Sheridan127$6.0M
John Bunning Transfer Company, Inc.83-0179595Rock Springs184$6.0M
Computer Solutions, Inc.83-0313021Casper142$6.0M
Lander Medical Clinic, P.C.83-0216112Lander156$5.9M
National Museum of Wildlife Art74-2431071Jackson229$5.9M
609 Consulting, LLC26-0152055Sheridan134$5.8M
Mobile Concrete, Inc.83-0290650Casper120$5.7M
High Country Crane Service39-4396941Bar NUNN122$5.7M
WYHY Federal Credit Union83-0176464Cheyenne152$5.7M

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 Wyoming

Every employer that sponsors a retirement or health plan files a Form 5500 that lists its nine-digit Employer Identification Number. Find a Wyoming 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 Wyoming. New to these filings? Start with What is Form 5500?

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