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US nonprofit · EIN 474200738 · Manhattan BCH, CAiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 474200738) - 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.Latest return IRS Form 990 series e-file data - 990 for the year to 31 December 2025: assets, liabilities, staff, website, telephone, pay, grants paid (Schedule I).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 PC), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

Harrison Greenberg Memorial Foundation

Donations deductible
Revenue
$132k
year to 31 December 2025
Expenses
$121k
year to 31 December 2025
Total assets
$786k
$8k liabilities
Net assets
$778k
assets less liabilities
Directors and trustees
5
8.0 years on average
Staff
0
employees, year to 31 December 2025
Left since last filing
0
no seats appear to have opened
Voting members
5
reported in Part VI
How am I connected?

Harrison Greenberg Memorial Foundation's network

5 people7 organisationsi5 people and 7 organisations on this map.The large node is the subject of this page. Solid lines are what the register itself records (5). Violet dotted lines (9) are likely: the same full name sits on the current board of another organisation in the same register and region. Form 990 filings give names without a person identifier; SEC insider filings carry a CIK. It may be a different person.

The board

5 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 in the tables. The network map shows same-name matches as likely links only, never as confirmed.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. The organisation reported 5 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
David WeinbergDirector2018
8 yrs
Frank MoranDirector2018
8 yrs
IRA LeibowitzDirector2019
7 yrs
Michael GreenbergPresident & Dir2018
8 yrs
Robin CurrenTres,Secret&dir2019
7 yrs
Under 5 years5 to 6 years6 years or more

Pay and hours

year to 31 December 2025iFrom Part VII of the Form 990: compensation reported for each officer, director, trustee, key employee and highest-paid staff member, and the average hours a week they report. Most board members are unpaid; a blank means nothing was reported. Pay from related organisations is shown separately.
NameTitle as filedHours a weekPay from the organisationRelated organisationsOther
Michael GreenbergPresident & Dir10$0
Robin CurrenTres,Secret&dir15$0
David WeinbergDirector1$0
Frank MoranDirector1$0
Ira LeibowitzDirector1$0

No pay was reported for anyone in Part VII on this return.

About

Legal name
Harrison Greenberg Memorial Foundation
EIN
474200738
Address
228 Manhattan Beach Blvd Ste 200, Manhattan BCH, CA, 90266-5356
State
California
Mission
To make grants in furtherance of educational activities and programs about the environment, including marine life and ocean sustainability. (as filed on the Form 990)
Activity (NTEE)
P20 Human services
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Human Services
Size band
5 (IRS master file code)
Formed
2015
Principal officer
Michael Greenberg (as named on the Form 990)
IRS ruling date
1 August 2016
Status
Code 01 (unconditional exemption)
Form 990 filings on record
6, latest 2023
IRS Publication 78
PC (contributions deductible)

Most connected

Longest observed on the filings

≥8years on the filingsDavid Weinberg
≥8years on the filingsFrank Moran
≥8years on the filingsMichael Greenberg
≥7years on the filingsIRA Leibowitz

Latest return

year to 31 December 2025iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 31 December 2025. US dollars, as filed.
Total assets
$786k
Total liabilities
$8k
Net assets or fund balances
$778k
Contributions and grants received
$132k
Program service revenue
$0
Grants and similar paid out
$14k
Employees
0

Grants paid

1 listediFrom Schedule I of the Form 990: grants and assistance to organisations in the United States, largest first (up to 25). Schedule I is filed only by organisations that gave more than $5,000 to any one recipient.
RecipientPurposeAmount
Oceanographic Teaching Statio$14k