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Massachusetts · NTEE Y

Mutual Benefit Nonprofits in Massachusetts

Givalgo Discover indexes 50 active mutual benefit nonprofits headquartered in Massachusetts. The list below is sorted by reported revenue on the most recent Form 990 indexed for each organisation.

Top 50 by reported revenue

From the most recent Form 990 indexed for each organisation. Click an org for full diligence detail.

#OrganisationRevenue
1TUFTS HEALTH PUBLIC PLANS INC
EIN 80-0721489
$2.6B
2NORTHROP GRUMMAN VEBA MASTER TRUST I
EIN 95-3386394
$1.3B
3GPU COMPANIES HEALTH CARE PLAN FOR NONBARGAINING RETIREES
EIN 22-3323698
$133.3M
4MASSACHUSETTS LIFE AND HEALTH INSURANCE GUARANTY ASSOCIATION
EIN 22-2994116
$120.7M
5JOHN HANCOCK MUTUAL LIFE INSURANCE COMPANY EMPL WELFARE TRUST
EIN 04-3105469
$95.4M
6MASSACHUSETTS INSTITUTE OF TECHNOLOGY WELFARE BENEFIT PLANS T
EIN 04-3177556
$66.5M
7TRANSIT EMPLOYEES HEALTH AND WELFARE FUND
EIN 82-3692932
$23.2M
8WAYNE J GRIFFIN ELECTRIC INC WELFARE BENEFIT PLAN TRUST
EIN 84-6474734
$19.6M
9UNITARIAN UNIVERSALIST ASSOCIATIONEMPLOYEE BENEFITS TRUST
EIN 20-8079417
$18.2M
10PINNACLE WEST CAPITAL CORPORATION UNION HEALTH BENEFITS MASTER TRUST
EIN 86-0748214
$17.0M
11MASTER TRUST AGREEMENT FOR WELFARE BENEFITS
EIN 04-3480219
$13.3M
12UGSOA HEALTH AND WELFARE TRUST FUND
EIN 82-4038622
$11.8M
13PINNACLE WEST CAPITAL CORPORATION NON-UNION HEALTH BENEFITS TRUST
EIN 81-6134353
$11.4M
14OPHTHALMIC CONSULTANTS OF BOSTON INC HEALTH WELFARE & BENEFITS PLAN
EIN 61-1433916
$10.5M
15NP DR PHILLIPS LLC
EIN 87-1032503
$10.2M
16WORKERS COMPENSATION RESEARCH INSTITUTE
EIN 36-3264285
$8.1M
17GPU COMPANIES BASIC LIFE INS PLAN FOR NON-BARGAINING RETIREES
EIN 23-3062202
$7.9M
18NP CROSBY LLC
EIN 86-3384698
$7.4M
19JOHN HANCOCK MUTUAL LIFE INS CO MARKETING REP WELFARE TRUST
EIN 04-3228901
$7.4M
20NP 18TH & CHET LLC
EIN 87-2048514
$6.0M
21NP ATLANTA INFILL INDUSTRIAL LLC
EIN 82-2207008
$6.0M
22PINNACLE WEST CAPITAL CORPORATION LIFE INSURANCE BENEFITS TRUST
EIN 81-6137331
$5.9M
23NP ABBEY LLC
EIN 87-3581094
$5.9M
24CHMC OTOLARYNGOLOGIC FOUNDATION INC VOLUNTARY EMPLOYEES BENEFIT PLAN
EIN 82-1072065
$5.7M
25NP SIX FORKS LLC
EIN 47-4101610
$5.2M
26NP OAK LAWN COMMONS LLC
EIN 88-1946681
$5.1M
27BOSTON PLASTERERS & CEMENT MASONS & ASPHALT LAYERS LOC 534 HLTH & WELF
EIN 04-6049991
$4.9M
28MASSACHUSETTS LABORERS LEGAL SERVICE FUND
EIN 04-6357603
$3.8M
29PROFESSIONAL FIRE FIGHTERS OF MASSACHUSETTS HEALTH AND WELFARE
EIN 80-6067410
$2.7M
30UAW UMASS HEALTH & WELFARE TR FUND
EIN 04-3538613
$2.7M
31NAGE-SEIU LOCAL 5000 TRIAL COURT OF MASS HEALTH AND WELFARE FUND
EIN 20-0575135
$2.7M
32NP BANGERTER CROSSING LLC
EIN 83-4011046
$2.5M
33GARDENS AT GETHSEMANE INC
EIN 75-3031828
$2.2M
34PROPRIETORS OF THE RURAL CEMETERY IN WORCESTER
EIN 04-1795920
$2.1M
35ISO NEW ENGLAND RETIREE MEDICAL DENTAL AND LIFE TR
EIN 13-7379593
$2.1M
36WOODLAWN-NORTH PURCHASE CEMETERIES ASSOC
EIN 04-2863910
$1.5M
37EXETER HEALTH RESOURCES INC SHORT TERM DISABILITY TR
EIN 80-6089096
$1.4M
38MCOFU RETIREE HEALTH AND WELFARE PLAN TR
EIN 81-6348115
$1.4M
39THE AMERICAN CITY COALITION INC
EIN 04-3243095
$1.3M
40AL-MARHAMA
EIN 46-4245990
$1.1M
41NATIONAL CORRECTIONAL EMPLOYEES UNION TR FUND
EIN 26-6426376
$1.1M
42IBEW LOCAL 7 SUPPLEMENTAL HEALTH & WELFARE FUND
EIN 26-1227271
$1.0M
43SOURCE INTERNATIONAL CORP EMPLOYEE BENEFITS TR
EIN 04-3401853
$995K
44CENTRAL CEMETERY ASSOCIATION OF RANDOLPH
EIN 04-2207412
$992K
45TUFTS MEDICAL CENTER-EMPLOYEE AFTER-TAX CONTRIBUTION TRUST
EIN 26-3918574
$790K
46BOSTON PLASTERERS AND CEMENT MASONS SUB FUND LOCAL UNION 534
EIN 61-1424309
$698K
47NEW ENGLAND VENTURE CAPITAL ASSOCIATION
EIN 04-2579421
$670K
48TEAMSTERS LOCAL 25 TRAINING FUND INC
EIN 30-0530663
$660K
49RETIREES HEALTH INSURANCE TRUST FUND
EIN 04-3560815
$586K
50GPU COMPANIES BASIC LIFE INS PLAN FOR BARGAINING UNIT RETIREES
EIN 23-3062203
$557K

Frequently asked questions about mutual benefit nonprofits in Massachusetts

Answers compiled from the IRS Form 990, BMF, Pub 78, and Auto-Revocation List.

How many mutual benefit nonprofits operate in Massachusetts?
Every IRS-registered mutual benefit nonprofit in Massachusetts appears in the Givalgo Discover index. The top 50 by reported revenue are listed on this page; the full set is searchable on discover.givalgo.ai.
What's the largest mutual benefit nonprofit in Massachusetts?
The single largest mutual benefit nonprofit in Massachusetts by reported total revenue is shown at the top of the list on this page, sourced from each organisation's most recent IRS Form 990 filing.
How do I vet a mutual benefit nonprofit in Massachusetts before donating?
Use Givalgo Discover's free profile for the organisation: it cross-references the IRS Auto-Revocation List, IRS Publication 78, and the IRS Business Master File, and exposes the latest Form 990 financials and governance signals on a single page.
Are donations to Massachusetts mutual benefit nonprofits tax-deductible?
Federal deductibility is determined by IRS Publication 78 status, not state location. Donations to a Pub 78-listed mutual benefit nonprofit in Massachusetts are tax-deductible at the federal level; Massachusetts state tax treatment may differ.
Where do mutual benefit nonprofits in Massachusetts file their Form 990?
All US tax-exempt organisations file Form 990 with the IRS at the federal level — there is no state-specific filing for the federal exemption itself. Massachusetts state charity registration is a separate state-level requirement.