Nonprofits in Wyoming
6,159 organizations in the IRS master file with a Wyoming address, listed A to Z by name.
Public IRS records only
This list comes from the IRS master file, which anyone can download from irs.gov. Nothing on it comes from Fast File Exempt accounts or filings. We run this lookup; it isn’t an IRS service. About this data
All organizations, page 1 of 124
IRS master file dated October 13, 2026; loaded here on October 26, 2026.
0–9
- 1000PLUS FOUNDATIONEIN 39-3211831SHERIDAN501(c)(3)
- 11TH OHIO VOLUNTEER CAVALRYEIN 38-3897216CASPER501(c)(3)
- 12-24 CLUB INCEIN 83-0306012CASPER501(c)(3)
- 12D BIO-RESTORATION RESEARCH FOUNDATIONEIN 41-3727106SHERIDAN501(c)(3)
- 1838 RENDEZVOUS ASSOCIATIONEIN 83-0297151RIVERTON501(c)(3)
- 1890S RIDERSEIN 42-4278337THERMOPOLIS501(c)(3)
- 1A WARRIORSEIN 33-3269587SHERIDAN501(c)(4)
- 1D6 FOUNDATIONEIN 99-0396358CASPER501(c)(3)
- 200 ORPHANAGES WORLDWIDE INCEIN 26-1642611SHERIDAN501(c)(3)
- 22ND CENTURY FOUNDATIONEIN 42-2506036CHEYENNE501(c)(3)
- 3 DOG RESCUEEIN 80-0789361CODY501(c)(3)
- 300 CLUB INCEIN 38-3666060CHEYENNE501(c)(7)
- 300FTR-US300FTREIN 42-4401833SHERIDAN501(c)(3)
- 307 DANCE ACADEMYEIN 27-3097418CASPER501(c)(3)
- 307 DINGERSEIN 87-2957790GREEN RIVER501(c)(3)
- 307 DISCOVERY CENTEREIN 83-0601936SHERIDAN501(c)(3)
- 307 DRAFT HORSE RESCUE INCEIN 99-4241334DAYTON501(c)(3)
- 307 INDUSTRIAL ALLIANCE INCEIN 41-4651557ROCK SPRINGS501(c)(3)
- 307 MOUNTAIN OPSEIN 41-4841024LARAMIE501(c)(3)
- 307 PEAK VOLLEYBALL CLUBEIN 39-2137915CHEYENNE501(c)(3)
- 307 SWISHERS TRAVEL BASKETBALLEIN 39-2094721ROCK SPRINGS501(c)(3)
- 307 UMPIRESEIN 99-4111121CHEYENNE501(c)(3)
- 312 TRAILBLAZERSEIN 46-3719298GREEN RIVER501(c)(3)
- 321ST BOMBS AWAY BOOSTER CLUBEIN 33-3656228CHEYENNE501(c)(3)
- 3N1 FOUNDATIONEIN 92-3262628SHARIDAN501(c)(3)
- 4 RESCUE FOUNDATION INCEIN 92-1899489SHERIDAN501(c)(3)
- 5150 TOURISM DEVELOPMENT INCEIN 82-3509401CASPER501(c)(3)
- 5725 HIGHLAND DRIVE INCEIN 82-3114312CASPER501(c)(2)
- 589TH ENGINEER BATTALION ASSOCIATIONEIN 27-1009334CODY501(c)(19)
- 5Q CENTRALEIN 92-2361781CODY501(c)(3)
- 7 CREEKSEIN 99-0688447SARATOGA501(c)(12)
- 7220 ATHLETICS BOOSTER CLUBEIN 33-4158823LARAMIE501(c)(3)
- 7220 DIRT RIDERS CLUB7220 DIRT RIDERSEIN 33-4452624LARAMIE501(c)(7)
- 8TH DAY FARM AND RANCH TRADE SHOW I NCEIN 42-4057053WORLAND501(c)(3)
- 90 CES BOOSTER CLUBEIN 76-0756452CHEYENNE501(c)(3)
- 90TH LOGISTICS READINESS SQUADRON B OOSTER CLUBEIN 92-0745512F E WARREN AFB501(c)(3)
- 9H RESEARCH FOUNDATIONEIN 85-3011110LARAMIE501(c)(3)
A
- A COWBOY CONNECTION MINISTRIESEIN 42-2470225POWELL501(c)(3)
- A JACKSON NEIGHBOREIN 22-3766805WILSON501(c)(3)
- A NEW DAWN- REMEBERING MACEY DAWNEIN 41-3211618MOUNTAIN VIEW501(c)(3)
- A SALT CREEK ROLLER DERBY A NON PROFIT CORPORATIONA SALT CREEK ROLLER DERBYEIN 99-1115489CASPER501(c)(3)
- AAAWEIN 93-4043095SHERIDAN501(c)(3)
- AARDVARK FAMILY FOUNDATIONEIN 81-5247126SHERIDAN501(c)(3)
- ABATE OF NE WYOMINGEIN 35-2611138GILLETTE501(c)(3)
- ABBAS HOUSEEIN 83-0305307RIVERTON501(c)(3)
- ABC GRATITUDEEIN 33-2253034CHEYENNE501(c)(3)
- ABISOGUN LEGACY FOUNDATIONEIN 33-2408246CHEYENNE501(c)(3)
- ABR FOUNDATIONEIN 41-2615897CHEYENNE501(c)(3)
- ABSAROKA INCEIN 83-0239287WORLAND501(c)(3)
- ABUNDANT LIFE ASSEMBLY OF GODEIN 30-0636684EVANSTON501(c)(3)
Guides
- Form 990-N, 990-EZ or 990: which to fileThe three tests, what "normally $50,000" means, who must file Form 990 regardless, and who doesn't file at all.
- Form 990 for PTAs, PTOs and booster clubsWhether a unit under a state group exemption files its own return, which form, the July–June deadline, and the treasurer handover.
- Private foundation filing requirementsForm 990-PF, its deadline and extension, and the separate returns a foundation may owe.
- Who can file Form 990-NThe "normally $50,000 or less" test, what the e-Postcard asks for, and when it's due.
- Form 990-N filing problemsEIN not in IRS records, IRS sign-in, filing too early, late and prior-year notices, and checking a past filing.
- Form 990 filing deadlinesThe general due date for each tax-year end, and how weekends and holidays move it.
- Form 8868 extensionsWhen Form 8868 extends an annual return, and why tax is still due on the original date.
- Late filing penaltiesThe daily penalty for a late return, reasonable cause, and the three-year revocation rule.