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US nonprofit · EIN 133942201 · New York, NYiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 133942201) - NTEE activity code, address.Board and officers IRS Form 990 annual filings, Part VII (directors, trustees, officers, key employees), read year by year to observe time served.Finances by year IRS Form 990 e-file data - total revenue and total expenses by tax year.Renewal outlook Computed by Governance Register from the observed filing history and filed revenue. Not a statement that the organisation is recruiting.Deductibility IRS Publication 78 data (code PF), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

Thompson Dean Family Foundation

Donations deductible
Total assets
$295k
IRS master file
Directors and trustees
3
8.4 years on average
Chair observed
≥6 yrs
Thompson Dean III
Left since last filing
0
no seats appear to have opened
Activity
T20Z
Philanthropy, voluntary services and grantmaking
Filings on record
6
latest 2024
Renewal outlook
Watchlist
score 22 of 100
Exempt since
1998
28 years ago
How am I connected?

Thompson Dean Family Foundation's network

3 peoplei3 people on this map.The large node is the subject of this page. Solid lines are what the register itself records (3). Form 990 filings give names without a person identifier; SEC insider filings carry a CIK.

The board

3 listediTime on the board is observed from the annual filings: the IRS files no appointment date, so the bar counts years from the first filing the person appears on - a lower bound, not a filed start date. Names are exactly as filed. The IRS publishes no person identifier, so this edition does not yet link a person across organisations.Time served and departures are observed across annual filings. Observed time served is a lower bound - a member may have joined before the first year on record.
NameRole as filedSinceOn the board
Thompson Dean III ChairChairman2018
8 yrs
Caroline W DeanPresident, Dir2018
8 yrs
Hume R SteyerCompany secretary2018
8 yrs
Under 5 years5 to 6 years6 years or more

About

Legal name
Thompson Dean Family Foundation
EIN
133942201
Address
Co RBM Cpas 57 W 38th St 3rd FL, New York, NY, 10018
State
New York
Activity (NTEE)
T20Z Philanthropy, voluntary services and grantmaking
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Philanthropy, Voluntarism & Grantmaking Foundations
Size band
4 (IRS master file code)
IRS ruling date
1 November 1998
Status
Code 01 (unconditional exemption)
Form 990 filings on record
6, latest 2024
IRS Publication 78
PF (contributions deductible)

Most connected

Longest observed on the filings

≥8years on the filingsThompson Dean III
≥8years on the filingsCaroline W Dean
≥8years on the filingsHume R Steyer

Filed finances

1 yeariTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.
Tax yearTotal revenueTotal expensesSurplus or deficit
2024$0$828kDeficit $828k

As filed on the IRS Form 990. US dollars.

State registration

1 entityiBusiness-entity registers published by US states. These records are matched to this organisation by name and state, not by EIN, and are labelled as likely matches. Street addresses are not shown.
Thompson Dean Family Foundation likely matchiMatched by exact name and state (and ZIP where shown). State registers do not publish EINs, so this is not a confirmed match. Source: New York Department of State, active corporations (data.ny.gov n9v6-gdp6). Licence: New York open data terms of use. Data last fetched 18 October 2026.
State
New York
Entity type
Foreign Not-For-Profit Corporation
Status
Active
Formed
3 August 1998
Registered agent
Not stated