Data / Nonprofits / Maryland
Nonprofits in Maryland: 43,818 registered with the IRS
43,818 nonprofits are registered with the IRS in Maryland, 37,335 of them 501(c)(3) charities; the 11,488 that report revenue took in $98.15 billion. The most are in Baltimore (6,866), Silver Spring (1,958), Rockville (1,219). The largest by revenue: Johns Hopkins University ($10.62 billion), The Johns Hopkins Hospital ($3.76 billion), A D F Community Outreach Foundation Inc ($2.88 billion).
SpecStream is the live web data engine for teams and agents. It reads the IRS register of exempt organizations as the IRS updates it, and this page is that reading. Ask for the nonprofits you need by place, cause and size, with their latest Form 990 figures and websites, and they arrive in your sheet, CRM, Slack or agent.
By cause
- Religion-related 5,822
- Human services 4,137
- Education 3,974
- Arts, culture and humanities 2,534
- Philanthropy, voluntarism and grantmaking foundations 2,104
- Recreation and sports 1,988
- Community improvement and capacity building 1,816
- Youth development 1,420
- Health care 1,199
- International, foreign affairs and national security 751
- Housing and shelter 745
- Mental health and crisis intervention 723
- Animal-related 690
- Public and societal benefit 684
- Environment 544
- Public safety, disaster preparedness and relief 430
- Food, agriculture and nutrition 380
- Employment 372
- Diseases, disorders and medical disciplines 360
- Mutual and membership benefit 312
- Civil rights, social action and advocacy 293
- Crime and legal-related 281
- Medical research 206
- Science and technology 199
- Social science 55
By city
- Baltimore 6,866
- Silver Spring 1,958
- Rockville 1,219
- Bethesda 1,077
- Frederick 1,039
- Bowie 1,025
- Columbia 932
- Towson 887
- Annapolis 874
- Uppr Marlboro 868
- Gaithersburg 738
- Laurel 737
- Hagerstown 583
- Ellicott City 577
- Potomac 537
- Salisbury 486
- Waldorf 479
- Hyattsville 472
- Lanham 461
- Germantown 440
- Owings Mills 421
- Ft Washington 398
- Westminster 386
- Bel Air 344
- Glen Burnie 342
- Clinton 298
- College Park 297
- Chevy Chase 287
- Catonsville 286
- Easton 282
- Temple Hills 266
- Cumberland 265
- Beltsville 259
- Capitol HGTS 258
- Randallstown 249
- Pasadena 243
- Greenbelt 240
- Pikesville 221
- Oakland 218
- Cockeysville 206
- Elkton 200
- Reisterstown 199
- Severna Park 196
- Severn 187
- Windsor Mill 185
- Parkville 175
- Takoma Park 172
- Cambridge 169
- Odenton 168
- Olney 166
- Elkridge 164
- Hanover 162
- Mount Airy 161
- Chestertown 159
- Oxon Hill 152
- Clarksburg 151
- Kensington 151
- Timonium 145
- Sykesville 142
- Gwynn Oak 140
- Lutherville 140
- Brandywine 140
- La Plata 137
- Suitland 135
- Berlin 134
- Aberdeen 131
- Eldersburg 131
- Burtonsville 130
- Accokeek 128
- Crofton 123
- Arnold 123
- Leonardtown 123
- Hvre de Grace 122
- Edgewater 121
- Derwood 120
- District HTS 118
- Millersville 117
- Middle River 116
- Essex 113
- Montgomry VLG 112
- PRNC Frederck 111
- Rosedale 109
- Riverdale 108
- Clarksville 107
- Abingdon 107
- Largo 106
- Landover 105
- White Plains 104
- Gambrills 100
- Ocean City 97
- Nottingham 96
- Forest Hill 96
- Dundalk 96
- North Potomac 96
- Denton 94
- Glenn Dale 91
- Centreville 90
- Joppa 89
- Damascus 88
- Halethorpe 87
- Edgewood 85
- Middletown 84
- Boonsboro 84
- Williamsport 83
- Mechanicsvlle 83
- Stevensville 82
- Lexington PK 82
- Frostburg 81
- Snow Hill 80
- Fulton 79
- Thurmont 78
- N Bethesda 78
- Luthvle Timon 77
- Mitchellville 76
- Crownsville 75
- North East 74
- Boyds 73
- Davidsonville 71
- Perry Hall 69
- Princess Anne 69
- Huntingtown 69
- Lusby 68
- New Market 67
- Hunt Valley 64
- Fallston 63
- Camp Springs 60
- Hampstead 59
- Hollywood 58
- Jessup 57
- Woodbine 56
- Adelphi 55
- Smithsburg 55
- Upper Marlboro 54
- Cheverly 54
- Ijamsville 53
- Rising Sun 52
- Hughesville 52
- California 52
- Brunswick 50
- Walkersville 50
- Poolesville 48
- Forestville 46
- Bladensburg 46
- Ashton 46
- Woodstock 46
- Chester 46
- Brookeville 45
- Phoenix 45
- New Carrolltn 44
- Linthicum HTS 44
- Monkton 44
- Street 43
- Clear Spring 43
- Manchester 43
- Sparks 42
- Parkton 42
- Jarrettsville 41
- Finksburg 41
- Wheaton 41
- Fort Meade 41
- Grantsville 40
- Owings 40
- Indian Head 40
- White Marsh 40
- Taneytown 40
- Darlington 39
- Sandy Spring 38
- Mount Rainier 38
- Marriottsvl 38
- Dunkirk 38
- Cabin John 37
- Federalsburg 37
- Lavale 37
- Springdale 37
- Emmitsburg 36
- Kingsville 36
- Jefferson 35
- Fort Washington 35
- Pocomoke City 35
- St Michaels 34
- Glenarden 34
- Savage 34
- Bryans Road 34
- Knoxville 33
- Brentwood 33
- Chesapeak BCH 33
- Fruitland 33
- New Windsor 32
- Cheltenham 32
- Union Bridge 32
- Perryville 32
- Linthicum 32
- Brooklyn 32
- Sharpsburg 31
- Glen Echo 31
- Monrovia 31
- Brooklandvl 30
- Crisfield 30
- Charlott Hall 30
- Ridgely 30
- Grasonville 30
- Highland 29
- Queenstown 29
- Lothian 29
- Riderwood 29
- Accident 29
- Hancock 28
- Port Deposit 28
- Belcamp 27
- Myersville 26
- Laytonsville 26
- Preston 26
- Adamstown 26
- Capitol Heights 26
- Churchville 25
- Solomons 25
- Rock Hall 24
- Mt Lake Park 23
- Glen Arm 23
- White Hall 23
- Conowingo 22
- Oxford 22
- Port Republic 22
- Great Mills 22
- Delmar 21
- Shady Side 21
- Baldwin 21
- Mardela SPGS 21
- Glenwood 21
- Sparrows PT 21
- Dickerson 21
- Westernport 21
- Stevenson 21
- Sparks Glenco 21
- North Beach 21
- Port Tobacco 20
- Bel Alton 20
- McHenry 20
- Linthicum Heights 20
- Glenelg 20
- Chesapeake Cy 20
- Darnestown 20
- Hebron 19
- Pittsville 19
- Simpsonville 19
- Churchton 19
- Keedysville 19
- Prince Frederick 19
- Hurlock 19
- Annapolis JCT 18
- Funkstown 18
- Riva 18
- Harwood 18
- Earleville 18
- Saint Leonard 18
- Dayton 17
- Westover 17
- Worton 17
- Freeland 17
- Landover HLS 16
- Cordova 16
- District Heights 16
- Pylesville 16
- Ocean Pines 15
- Trappe 15
- Garrett Park 15
- Greensboro 15
- Upperco 15
- Capital Heights 15
- Galesville 14
- Tracys LNDG 14
- Glyndon 14
- E New Market 14
- Natl Harbor 14
- Whiteford 13
- Keymar 13
- Laplata 13
- Buckeystown 13
- Woodsboro 13
- Galena 13
- Sudlersville 13
- Lonaconing 13
- Newburg 13
- Spencerville 13
- Brooklyn Park 13
- Willards 12
- Silver Springs 12
- Berwyn HTS 12
- W Friendship 12
- Church Hill 12
- Eden 12
- Flintstone 11
- Fairplay 11
- Idlewylde 11
- Deale 11
- University Pa 11
- Lexington Park 11
- Cresaptown 11
- Mount Savage 11
- Ridge 11
The 100 largest by revenue
| Organization | City | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|---|
| Johns Hopkins University | Baltimore | Education | 501(c)(3) | 1935 | $10.62 billion | $25.29 billion | 2025-06 |
| The Johns Hopkins Hospital | Baltimore | Health care | 501(c)(3) | 1948 | $3.76 billion | $3.77 billion | 2025-06 |
| A D F Community Outreach Foundation Inc | Mechanicsvlle | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2024 | $2.88 billion | $165.2 million | 2025-12 |
| Financial Industry Regulatory Authority Inc | Rockville | 501(c)(6) | 1937 | $2.61 billion | $3.10 billion | 2024-12 | |
| University of Maryland Medical System Corporation | Linthicum Heights | Health care | 501(c)(3) | 1984 | $2.53 billion | $5.25 billion | 2025-06 |
| HH Medstar Health Inc | Columbia | Health care | 501(c)(3) | 1997 | $2.40 billion | $512.3 million | 2025-06 |
| Howard Hughes Medical Institute | Chevy Chase | Medical research | 501(c)(3) | 1957 | $2.00 billion | $29.50 billion | 2025-08 |
| Washington Hospital Center Corporation | Columbia | Health care | 501(c)(3) | 1959 | $1.91 billion | $979.9 million | 2025-06 |
| Medstar-Georgetown Medical Center Inc | Columbia | Health care | 501(c)(3) | 2000 | $1.90 billion | $1.62 billion | 2025-06 |
| Finra Regulation Inc | Rockville | 501(c)(6) | 1997 | $1.35 billion | $94.1 million | 2024-12 | |
| American Postal Workers Union | Elkridge | 501(c)(9) | 1975 | $1.31 billion | $445.7 million | 2024-12 | |
| Sinai Hospital of Baltimore Inc | Baltimore | Health care | 501(c)(3) | 1936 | $1.06 billion | $956.4 million | 2025-06 |
| Johns Hopkins All Childrens Hospital Inc | Baltimore | Health care | 501(c)(3) | 1942 | $948.8 million | $1.56 billion | 2025-06 |
| Healthwell Foundation | Rockville | Health care | 501(c)(3) | 2005 | $911.5 million | $918.2 million | 2024-12 |
| Adventist Healthcare Inc | Gaithersburg | 501(c)(3) | 1947 | $909.8 million | $1.64 billion | 2024-12 | |
| Johns Hopkins Bayview Medical Center Inc | Baltimore | Health care | 501(c)(3) | 1984 | $899.1 million | $491.7 million | 2025-06 |
| Neca Ibew Family Medical Care Trust Fund | Rockville | Mutual and membership benefit | 501(c)(9) | 2006 | $850.2 million | $1.25 billion | 2025-12 |
| The Johns Hopkins Health System Corporation | Baltimore | Health care | 501(c)(3) | 1990 | $783.8 million | $2.31 billion | 2025-06 |
| Holy Cross Health Inc | Silver Spring | 501(c)(3) | 2013 | $779.7 million | $1.22 billion | 2025-06 | |
| Luminis Health Anne Arundel Medical Center Inc | Annapolis | Health care | 501(c)(3) | 1955 | $759.6 million | $1.20 billion | 2025-06 |
| Lucy Webb Haynes National Training School for Deaconesses and Mission | Baltimore | Health care | 501(c)(3) | 1936 | $750.1 million | $1.81 billion | 2025-06 |
| Meritus Medical Center Inc | Hagerstown | Health care | 501(c)(3) | 1937 | $721.3 million | $1.07 billion | 2025-06 |
| Jack and Nancy Dwyer Workforce Development Center Inc | Baltimore | Health care | 501(c)(3) | 2021 | $696.1 million | $904.2 million | 2024-12 |
| Board of Education of Montgomery County Employee Benefit Trust Fund | Rockville | 501(c)(9) | 1964 | $690.1 million | $19.4 million | 2025-06 | |
| Mercy Medical Center Inc | Baltimore | Health care | 501(c)(3) | 1949 | $685 million | $1.14 billion | 2025-06 |
| Impactassets Inc | Bethesda | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2009 | $680.3 million | $3.00 billion | 2024-12 |
| Greater Baltimore Medical Center | Towson | Health care | 501(c)(3) | 1996 | $674.6 million | $870.3 million | 2025-06 |
| Franklin Square Hospital Center Inc | Baltimore | Health care | 501(c)(3) | 1938 | $655.3 million | $351 million | 2025-06 |
| Tidalhealth Peninsula Regional Inc | Salisbury | Health care | 501(c)(3) | 1942 | $643.6 million | $792.1 million | 2025-06 |
| Henry M Jackson Foundation for the Advancement of Military Medicine | Bethesda | Medical research | 501(c)(3) | 1983 | $616.3 million | $301.4 million | 2025-09 |
| Umsj Health System LLC | Towson | Health care | 501(c)(3) | 2014 | $605.6 million | $422.9 million | 2025-06 |
| Southern Maryland Electric Cooperative Inc | Hughesville | Public and societal benefit | 501(c)(12) | 1938 | $542.5 million | $1.24 billion | 2024-12 |
| Dimensions Health Corporation | Linthicum Heights | Health care | 501(c)(3) | 1983 | $522.5 million | $760 million | 2025-06 |
| Baltimore Washington Medical Center Inc | Linthicum Heights | Health care | 501(c)(3) | 1973 | $519.7 million | $577.8 million | 2025-06 |
| Johns Hopkins Medical Services Corporation | Baltimore | Health care | 501(c)(3) | 1981 | $497.7 million | $2.1 million | 2025-06 |
| Upper Chesapeake Medical Center Inc | Linthicum Heights | Health care | 501(c)(3) | 1987 | $487.9 million | $1.01 billion | 2025-06 |
| Union Memorial Hospital | Baltimore | Health care | 501(c)(3) | 1921 | $472.7 million | $265.4 million | 2025-06 |
| Frederick Health Hospital Inc | Frederick | Health care | 501(c)(3) | 1938 | $455.2 million | $690.9 million | 2025-06 |
| Fello Inc | Linthicum HTS | Mental health and crisis intervention | 501(c)(3) | 1973 | $445.7 million | $92.8 million | 2025-06 |
| Suburban Hospital Incorporated | Baltimore | Health care | 501(c)(3) | 1945 | $427.7 million | $716.6 million | 2025-06 |
| Medstar Health Inc | Columbia | Health care | 501(c)(3) | 1998 | $423.3 million | $3.68 billion | 2025-06 |
| National Automatic Sprinkler Industry Welfare Fund | Landover | 501(c)(9) | 1955 | $397.5 million | $787.7 million | 2024-12 | |
| National Gallery of Art | Landover | Arts, culture and humanities | 501(c)(3) | 1965 | $382.9 million | $2.18 billion | 2025-09 |
| Johns Hopkins Community Physicians Inc | Baltimore | 501(c)(3) | 1987 | $381.5 million | $111.8 million | 2025-06 | |
| Loyola University Maryland Inc | Baltimore | 501(c)(3) | 1993 | $368.9 million | $840.6 million | 2025-05 | |
| Howard County General Hospital Inc | Baltimore | Health care | 501(c)(3) | 1998 | $363.4 million | $480.3 million | 2025-06 |
| United States Pharmacopeial Convention Inc | Rockville | Health care | 501(c)(3) | 1959 | $357.7 million | $788.7 million | 2025-06 |
| Cystic Fibrosis Foundation | Bethesda | Diseases, disorders and medical disciplines | 501(c)(3) | 1957 | $355.8 million | $4.99 billion | 2024-12 |
| NFL Player Supplemental Disability Plan Trust | Baltimore | 501(c)(9) | 1994 | $349.5 million | $92.3 million | 2025-03 | |
| Lifebridge Health Inc | Owings Mills | Health care | 501(c)(3) | 1986 | $346.6 million | $1.90 billion | 2025-06 |
| Sheppard Pratt Health System Inc | Baltimore | Mental health and crisis intervention | 501(c)(3) | 1938 | $343.5 million | $441.7 million | 2025-06 |
| Shore Health System Inc | Linthicum Heights | Health care | 501(c)(3) | 2004 | $342.2 million | $886.4 million | 2025-06 |
| State Employees Credit Union of Maryland Inc | Linthicum | 501(c)(14) | 1998 | $333.1 million | $5.47 billion | 2024-12 | |
| Medstar Southern Maryland Hospital Center Inc | Columbia | Health care | 501(c)(3) | 2013 | $325.7 million | $182.7 million | 2025-06 |
| American Kidney Fund Inc | Rockville | 501(c)(3) | 1971 | $324.6 million | $199.2 million | 2025-12 | |
| Tidalhealth Inc | Salisbury | Health care | 501(c)(3) | 1999 | $324.2 million | $1.06 billion | 2025-06 |
| Carroll Hospital Center Inc | Westminster | Health care | 501(c)(3) | 1990 | $301.6 million | $449.2 million | 2025-06 |
| Northwest Hospital Center Inc | Randallstown | Health care | 501(c)(3) | 1985 | $301.1 million | $217 million | 2025-06 |
| The Good Samaritan Hospital of Maryland Inc | Baltimore | Health care | 501(c)(3) | 1993 | $299.4 million | $206.9 million | 2025-06 |
| Luminis Health Doctors Community Medical Center Inc | Annapolis | Health care | 501(c)(3) | 1990 | $287.9 million | $202.1 million | 2025-06 |
| Maryland General Hospital | Linthicum Heights | Health care | 501(c)(3) | 1948 | $285.2 million | $194.3 million | 2025-06 |
| Johns Hopkins University | Baltimore | 501(c)(3) | 1935 | $280.5 million | $236.4 million | 2025-06 | |
| Physician Enterprise LLC | Annapolis | Health care | 501(c)(3) | 2012 | $279 million | $55.6 million | 2025-06 |
| Kennedy Krieger Childrens Hospital Inc | Baltimore | Health care | 501(c)(3) | 1940 | $278.5 million | $148.2 million | 2025-06 |
| Gene Upshaw NFL Player Health Reimbursement Account Plan Trust | Baltimore | Mutual and membership benefit | 501(c)(9) | 2008 | $265.8 million | $1.08 billion | 2025-03 |
| Special Agents Mutual Benefit | Rockville | 501(c)(9) | 1950 | $259.5 million | $249.6 million | 2024-12 | |
| St Marys Hospital of St Marys County | Columbia | Health care | 501(c)(3) | 1951 | $241.8 million | $163.3 million | 2025-06 |
| T Rowe Price Program for Charitable Giving Inc | Baltimore | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2000 | $241.2 million | $752.9 million | 2026-03 |
| Medical Technology Enterprise Consortium | N Bethesda | Science and technology | 501(c)(3) | 2016 | $234.5 million | $89.2 million | 2024-12 |
| Harbor Hospital Inc | Baltimore | Health care | 501(c)(3) | 1935 | $220.4 million | $101.4 million | 2025-06 |
| Maryland Economic Development Corporation | Baltimore | 501(c)(4) | 1986 | $218.1 million | $1.18 billion | 2025-06 | |
| Asbury Atlantic Inc | Frederick | Human services | 501(c)(3) | 1996 | $212.9 million | $566.1 million | 2024-12 |
| Montgomery General Hospital Inc | Columbia | Health care | 501(c)(3) | 1921 | $212.5 million | $128.9 million | 2025-06 |
| World Relief Corporation O National | Baltimore | International, foreign affairs and national security | 501(c)(3) | 1964 | $205.9 million | $82.6 million | 2025-09 |
| Civista Medical Center Inc | Linthicum Heights | Health care | 501(c)(3) | 1980 | $196.6 million | $180.5 million | 2025-06 |
| Electrical Welfare Trust Fund | Lanham | 501(c)(9) | 1961 | $195.6 million | $300.4 million | 2024-12 | |
| Transit Employees Health and Welfare Plan | District Heights | 501(c)(9) | 1956 | $193.4 million | $87.7 million | 2024-12 | |
| Choptank Electric Corp | Denton | 501(c)(12) | 1941 | $190.1 million | $534 million | 2025-12 | |
| University of Maryland College Park Foundation Inc | College Park | Education | 501(c)(3) | 2000 | $187.9 million | $1.24 billion | 2025-06 |
| Stevenson University Inc | Owings Mills | Education | 501(c)(3) | 1996 | $187.7 million | $362.7 million | 2025-06 |
| The John Hopkins Univ Applied Phys Lab Medical & Dental Insurance | Laurel | 501(c)(9) | 1982 | $187.5 million | $29.6 million | 2025-06 | |
| United Association of Journeymen & Apprentices of the Plumbing & Pipe | Annapolis | Employment | 501(c)(5) | 1941 | $185.3 million | $532.9 million | 2025-06 |
| Tidalhealth Atlantic Inc | Berlin | Health care | 501(c)(3) | 1989 | $183.1 million | $142.2 million | 2025-06 |
| National Rehabilitation Hospital Inc | Columbia | Health care | 501(c)(3) | 1985 | $179.4 million | $147.4 million | 2025-06 |
| International Association of Machinists & Aerospace Grand Lodge | Uppr Marlboro | 501(c)(5) | 1940 | $179.2 million | $266 million | 2024-12 | |
| Chase Brexton Health Services Inc | Baltimore | Diseases, disorders and medical disciplines | 501(c)(3) | 1990 | $172.8 million | $152.5 million | 2025-06 |
| Lutheran Immigration and Refugee Service | Baltimore | 501(c)(3) | 1972 | $170.5 million | $97.1 million | 2025-12 | |
| Calverthealth Medical Center Inc | PRNC Frederck | Health care | 501(c)(3) | 1943 | $170.3 million | $140.7 million | 2025-06 |
| Luminis Health Inc | Annapolis | Health care | 501(c)(3) | 1990 | $167.4 million | $905.7 million | 2025-06 |
| Seafarers Health and Benefits Plan | Camp Springs | 501(c)(9) | 1951 | $164.7 million | $493 million | 2024-12 | |
| MC Daniel College Inc | Westminster | Education | 501(c)(3) | 1934 | $163 million | $283.6 million | 2025-05 |
| Sodexho Inc | N Bethesda | Mutual and membership benefit | 501(c)(9) | 1999 | $159.2 million | $1.8 million | 2025-08 |
| St Paul Place Specialists Inc | Baltimore | 501(c)(3) | 1946 | $156.1 million | $116 million | 2025-06 | |
| Johns Hopkins Pharmaquip Inc | Baltimore | Health care | 501(c)(3) | 1994 | $147.6 million | $104.3 million | 2025-06 |
| Riderwood Village Inc | Catonsville | Human services | 501(c)(3) | 2003 | $146.2 million | $834.2 million | 2024-12 |
| U of M Rehab & Orthopaedic Institute | Linthicum Heights | Health care | 501(c)(3) | 1941 | $143.8 million | $212.6 million | 2025-06 |
| Mount Saint Marys University | Emmitsburg | Education | 501(c)(3) | 1946 | $143.3 million | $219.7 million | 2025-06 |
| Associated Catholic Charities Inc | Timonium | Human services | 501(c)(3) | 1946 | $142.7 million | $224 million | 2025-06 |
| Association of Public Health Laboratories Inc | Bethesda | 501(c)(3) | 1992 | $142.2 million | $36.1 million | 2024-12 | |
| Felra and Ufcw Health and Welfare Fund | Sparks | Mutual and membership benefit | 501(c)(9) | 2015 | $139.4 million | $34.6 million | 2024-12 |
Read from the IRS Exempt Organizations Business Master File, updated by the IRS on October 24, 2026 and rebuilt here every morning. Revenue and assets are from each organization's latest filing as the IRS lists it; the IRS record is the official one. Organizations only: no people are named on these pages.