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Massachusetts · Nonprofit

Massachusetts Institute of Technology Welfare Benefit Plans Trust

Massachusetts Institute of Technology Welfare Benefit Plans Trust (Massachusetts) receives grants from 2 organizations whose IRS filings report $125,000 to it, the largest being Optical Society of America Inc ($75,000). 0 of them have funded it in more than one year.

Revenue FY2025
$55M
Funders on record
2
Grants received
$125k
Net assets
$1.1B
0/2 repeat funderspeak grant-dependency 0%
01What it does

What Massachusetts Institute of Technology Welfare Benefit Plans Trust does

Mission

To provide health and life insurance benefits to covered eligible retirees of massachusetts institute of technology and their dependents, as well as individuals receiving long-term disability benefits for at least three years.

As stated on its FY2025 Form 990.

Program

  1. Medical and life insurance benefits for eligible retirees, along with medical benefits for those receiving long term disability benefits for at least three years, were provided to approximately 7,446 individuals covered under the massachusetts institute of technology (mit) welfare benefit plans trust.

    $60,791,000 spent$29,931,000 earned by the program
    100% of program spending

The program described on its FY2024 Form 990. Program spending in total: $60,791,000.

02The organization over time

The organization over time

Each line starts at 100 in 2017, so what you read is the shape rather than the size: 150 means half as much again as 2017, 50 means half. The number beside each label in the key is where it ended. The shaded band is where the middle 50% of its peers' revenue would sit, given their growth.

100 = 20172017 Revenue 100 ($63M) Expenses 100 ($32M) Net assets 100 ($623M)2018 Revenue 61 ($39M) Expenses 98 ($31M) Net assets 111 ($691M)2019 Revenue 38 ($24M) Expenses 114 ($36M) Net assets 114 ($711M)2020 Revenue 51 ($32M) Expenses 111 ($35M) Net assets 122 ($761M)2021 Revenue 106 ($66M) Expenses 123 ($39M) Net assets 177 ($1.1B)2022 Revenue 294 ($185M) Expenses 135 ($43M) Net assets 153 ($952M)2023 Revenue 121 ($76M) Expenses 161 ($51M) Net assets 147 ($915M)2024 Revenue 106 ($66M) Expenses 173 ($55M) Net assets 158 ($985M)2025 Revenue 88 ($55M) Expenses 203 ($64M) Net assets 177 ($1.1B)
'17'18'19'20'21'22'23'24'25
Revenue (88)Expenses (203)Net assets (177)Peer revenue range

Balance sheet

Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2020 to 2021, from $763M to $1.1B (+46%).

$630M
$695M
$712M
$763M
$1.1B
$957M
$938M
$1.0B
$1.2B
'17'18'19'20'21'22'23'24'25
Total assetsTotal liabilities

How it's funded, over time

Each bar is one year's revenue split into where it came from, and every bar is the same height — these are shares, not amounts, so a year that raised twice as much looks the same size. Hover a bar for the split.

2017
2018
2019
2020
2021
2022
2023
2024
2025
ContributionsProgram revenueInvestmentOther

0% of Massachusetts Institute of Technology Welfare Benefit Plans Trust’s revenue is contributions — more reliant on donations than three-quarters of its peers (0% for the typical peer).

This organization
Typical peer · 427 orgs

Surplus & reserves

Operating surplus or deficit each year, and months of liquidity in hand. 3 of the last 9 reported years ran a deficit.

$31M
’17
$7.4M
’18
−$12M
’19
−$3.1M
’20
$27M
’21
$142M
’22
$25M
’23
$12M
’24
−$8.8M
’25
12
months of
reserve

Leadership and staff

The officers, directors, trustees and key employees listed on each return. Joined and no longer listed compare each filing with the year before, matching people by surname and first initial; a year after a gap, or a roster under three people, has no comparison.

20242025
Listed22
Joined··
No longer listed··
03Who funds it

Who funds it, year by year

2019 → 2023: the base held at 1 funder, grant income fell $75k → $50k.

Funder
'19
'23
total
$50k
funders
1
1

From the IRS filings of Massachusetts Institute of Technology Welfare Benefit Plans Trust’s funders (the co-funder graph). Association, not causation. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.

How concentrated its funding is

Massachusetts Institute of Technology Welfare Benefit Plans Trust leans on a few funders — its largest provides 60% of grant income and the top three 100%; half comes from just 1 funder.

the vertical line marks half of all grant income — 1 funder to its left

100% of the income these shares are computed over arrives through pass-through sponsors or from payers whose filings do not say what kind of payment it is. Concentration is still measured over all of it, because the money is real; what it does not support is a claim about how many institutions have chosen to fund Massachusetts Institute of Technology Welfare Benefit Plans Trust.

60%
largest funder
100%
top three
~2
effective funders

Largest funder’s share by year: 2019 100% · 2023 100% — broadly stable.

“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.

Where its funders are

Massachusetts Institute of Technology Welfare Benefit Plans Trust draws 100% of its grant income from funders outside Massachusetts, across 2 states in all.

CA
DC

In-state vs out-of-state, by year

’19
’23
Massachusetts out of state home

Funder states come from each funder’s own filing. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.

04Its place in the field

Against its field

Massachusetts Institute of Technology Welfare Benefit Plans Trust holds deeper cash reserves than three-quarters of the 149 membership benefit nonprofits its size.

Operating margin−16% · bottom quartile
Months of reserve12.0mo · top quartile
Revenue growth (annualized)−2% · bottom quartile

this organization peer median middle 50% of peers· 149 membership benefit nonprofits $10M–$100M, FY2025

Organizations like Massachusetts Institute of Technology Welfare Benefit Plans Trust

Organizations whose mission and program text most resemble this one, by semantic similarity over every organization in the US filings — the closest peers, and often the clearest route to shared or prospective funders.

In Massachusetts

Nationally

05Profile & governance

Read directly from this organization’s own Form 990, as neutral context.

Where the money goes

95% of spending goes to programs.

Program 95%Management 5%Fundraising 0%

Governance

2
board members
0%
independent
–Conflict-of-interest policy–Whistleblower policy–Document retention–Board reviewed the 990✓Audited financials

Footprint & structure

Files a return copy in 1 state

CA

Part of a family of 1 related entity

  • Massachusetts Institute of Technology · exempt

Screen this organization

A dated, signed PDF of the compliance screen for Massachusetts Institute of Technology Welfare Benefit Plans Trust: IRS status (Business Master File, Publication 78, auto-revocation), the OFAC sanctions lists, the Internal Revenue Bulletin, and California registration, with the Rev. Proc. 2018-32 §8.01 reliance elements stated element by element. Generated from the current files at the moment you download it.

A paid feature, included from the $75 plan up. Sign in to download.

Screens are triage, not determinations; a source that cannot be read reports not screened, never clear. Screen this nonprofit · How the screen works · on the API as GET /api/screening/{ein}?format=pdf

Questions and answers

Who funds Massachusetts Institute of Technology Welfare Benefit Plans Trust?
Massachusetts Institute of Technology Welfare Benefit Plans Trust (Massachusetts) receives grants from 2 organizations whose IRS filings report $125,000 to it, the largest being Optical Society of America Inc ($75,000). 0 of them have funded it in more than one year.
How many funders does Massachusetts Institute of Technology Welfare Benefit Plans Trust have?
IRS filings report 2 organizations giving $125,000 in grants to Massachusetts Institute of Technology Welfare Benefit Plans Trust.
Who is the largest funder of Massachusetts Institute of Technology Welfare Benefit Plans Trust?
Optical Society of America Inc is the largest funder on record, with $75,000 in grants. The full list of funders is on this page.
How can an organization like Massachusetts Institute of Technology Welfare Benefit Plans Trust find more funders?
Start with the funders already giving here, then look at the foundations that back similar organizations in Massachusetts. The funding by cause and by state pages list the largest funders for a given area and how to approach them.

Play a game about who funds Massachusetts Institute of Technology Welfare Benefit Plans →

These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2017–2025), and the filings of 2 funders that report grants to it. “On record” means captured in the filings we have parsed — a funder that does not e-file, or whose grant detail is not itemized, will not appear. Filings run roughly 12–24 months behind. Trends on this page end at FY2023, the last fiscal year that has finished arriving; later years are shown and marked, and move no figure. Data on this page was exported October 14, 2026. What this page cannot tell you · view filing