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Cecil H & Ida M Green Foundation For Earth Sciences

  • La Jolla, CA
  • Tax-exempt since Dec. 1971
  • EIN: 23-7121946

Organization summary

Type of Nonprofit

Designated as a Organizations for any of the following purposes: religious, educational, charitable, scientific, literary, testing for public safety, fostering national or international amateur sports competition (as long as it doesn't provide athletic facilities or equipment), or the prevention of cruelty to children or animals.

Category: Science and Technology Research Institutes, Services / Geology (NTEE)

Donations to this organization are tax deductible.

Summary charts: organization finances over time

Revenue
$463k (2025)

Expenses
$235k (2025)

Total Assets
$18.2M (2025)

Total Liabilities
$7.53M (2025)

Source: Form 990 tax filings from 2012 to 2025

Tax Filings by Year

Form 990 is an information return that most organizations claiming federal tax-exempt status must file yearly with the IRS. Nonprofit Explorer has IRS digitized Form 990 data for filings processed in 2012 and later. If this organization filed an amended return, it may not be reflected below. Duplicate download links may indicate a resubmission or amendment to this organization's original return. Form 990 data is from the IRS.

Fiscal Year Ending March
2025

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$462,658
Expenses
$234,511
Net Income
$228,147
Net Assets
$10,649,993
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $2,959
0.6%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $459,699
99.4%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $18,176,388
Total Liabilities $7,526,395
Net Assets $10,649,993
Compensation
Key Employees and Officers Compensation Related Other
Peter Shearer (President) $0 $0 $0
Duncan Agnew (Secretary & Assistant Treasurer) $0 $0 $0
Margaret Leinen (Ex Officio) $0 $0 $0
Pradeep Khosla (Director) $0 $0 $0
Guy Masters (Director) $0 $0 $0
Tim Scott (Director) $0 $0 $0
Mark Olsson (Director) $0 $0 $0
+ View more people

Document Links

990
Filed on Oct. 14, 2025

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending March
2024

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$684,825
Expenses
$372,551
Net Income
$312,274
Net Assets
$10,483,708
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $5,486
0.8%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $679,339
99.2%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $18,010,103
Total Liabilities $7,526,395
Net Assets $10,483,708
Compensation
Key Employees and Officers Compensation Related Other
Wayne Kennedy (President) $0 $0 $0
Peter Shearer (Vice President) $0 $0 $0
Duncan Agnew (Secretary/Assistant Treasurer) $0 $0 $0
Donna Weston (Treasurer) $0 $0 $0
Margaret Leinen (Ex Officio) $0 $0 $0
Pradeep Khosla (Ex Officio) $0 $0 $0
Peter Cowhey (Director) $0 $0 $0
Charles Kennel (Director) $0 $0 $0
Tim Scott (Director) $0 $0 $0
Mark Olsson (Director) $0 $0 $0
+ View more people

Document Links

990
Filed on Jan. 24, 2025

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending March
2023

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,909,356
Expenses
$365,859
Net Income
$1,543,497
Net Assets
$10,605,599
Notable Sources of Revenue Percent of Total Revenue
Contributions $1,379,811
72.3%
Program Services $0
Investment Income $7,167
0.4%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $522,378
27.4%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $18,131,994
Total Liabilities $7,526,395
Net Assets $10,605,599
Compensation
Key Employees and Officers Compensation Related Other
Wayne Kennedy (President) $0 $0 $0
Peter Shearer (Vice President) $0 $0 $0
Duncan Agnew (Secretary) $0 $0 $0
Donna Weston (Treasurer) $0 $0 $0
Peter Cowhey (Director) $0 $0 $0
Charles Kennel (Director) $0 $0 $0
Margaret Leinen (Director) $0 $0 $0
Pradeep Khosla (Director) $0 $0 $0
Wayne Farquharson (Assistant Secretary) $0 $0 $0
+ View more people

Document Links

990
Filed on Feb. 1, 2024

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending March
2022

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,221,654
Expenses
$378,054
Net Income
$843,600
Net Assets
$10,378,528
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $6,969
0.6%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $1,214,685
99.4%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $16,525,112
Total Liabilities $6,146,584
Net Assets $10,378,528
Compensation
Key Employees and Officers Compensation Related Other
Sheldon Engelhorn (President) $0 $0 $0
Adrian Borsa (Vice President) $0 $0 $0
Duncan Agnew (Secretary) $0 $0 $0
Donna Weston (Treasurer) $0 $0 $0
Peter Cowhey (Director) $0 $0 $0
Charles Kennel (Director) $0 $0 $0
Margaret Leinen (Director) $0 $0 $0
Pradeep Khosla (Director) $0 $0 $0
Wayne Kennedy (Director) $0 $0 $0
Wayne Farquharson (Assistant Secretary) $0 $0 $0
+ View more people

Document Links

990
Filed on Jan. 25, 2023

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending March
2021

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$3,710,125
Expenses
$289,940
Net Income
$3,420,185
Net Assets
$9,733,752
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $142,627
3.8%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $3,567,498
96.2%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $15,880,336
Total Liabilities $6,146,584
Net Assets $9,733,752
Compensation
Key Employees and Officers Compensation Related Other
Sheldon Engelhorn (President) $0 $0 $0
Adrian Borsa (Vice President) $0 $0 $0
Duncan Agnew (Secretary) $0 $0 $0
Donna Weston (Treasurer) $0 $0 $0
Peter Cowhey (Director) $0 $0 $0
Charles Kennel (Director) $0 $0 $0
Margaret Leinen (Director) $0 $0 $0
Pradeep Khosla (Director) $0 $0 $0
Wayne Kennedy (Director) $0 $0 $0
Wayne Farquharson (Assistant Secretary) $0 $0 $0
+ View more people

Document Links

990
Filed on Feb. 4, 2022

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending March
2020

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$707,007
Expenses
$270,767
Net Income
$436,240
Net Assets
$6,911,476
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $207,956
29.4%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $499,051
70.6%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $13,058,060
Total Liabilities $6,146,584
Net Assets $6,911,476
Compensation
Key Employees and Officers Compensation Related Other
Sheldon Engelhorn (President) $0 $0 $0
Steven Constable (Vice President) $0 $0 $0
Duncan Agnew (Secretary) $0 $0 $0
Donna Weston (Treasurer) $0 $0 $0
Peter Cowhey (Director) $0 $0 $0
Charles Kennel (Director) $0 $0 $0
Margaret Leinen (Director) $0 $0 $0
Pradeep Khosla (Director) $0 $0 $0
Wayne Kennedy (Director) $0 $0 $0
Wayne Farquharson (Assistant Secretary) $0 $0 $0
+ View more people

Document Links

990
Filed on Feb. 9, 2021

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending March
2019

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$586,864
Expenses
$296,649
Net Income
$290,215
Net Assets
$8,057,810
Notable Sources of Revenue Percent of Total Revenue
Contributions $26,337
4.5%
Program Services $0
Investment Income $164,703
28.1%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $395,824
67.4%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $14,300,674
Total Liabilities $6,242,864
Net Assets $8,057,810
Compensation
Key Employees and Officers Compensation Related Other
Sheldon Engelhorn (President) $0 $0 $0
Steven Constable (Vice President) $0 $0 $0
Donna Blackman (Secretary & Assistant Treasurer) $0 $0 $0
Donna Weston (Treasurer) $0 $0 $0
Peter Cowhey (Director) $0 $0 $0
Charles Kennel (Director) $0 $0 $0
Margaret Leinen (Director) $0 $0 $0
Pradeep Khosla (Director) $0 $0 $0
Wayne Kennedy (Director) $0 $0 $0
Wayne Farquharson (Assistant Secretary) $0 $0 $0
+ View more people

Document Links

990
Filed on Oct. 8, 2019

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending March
2018

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,055,208
Expenses
$355,200
Net Income
$700,008
Net Assets
$8,438,313
Notable Sources of Revenue Percent of Total Revenue
Contributions $19,868
1.9%
Program Services $0
Investment Income $1,035,340
98.1%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $14,584,897
Total Liabilities $6,146,584
Net Assets $8,438,313
Compensation
Key Employees and Officers Compensation Related Other
Sheldon Engelhorn (President) $0 $0 $0
Donna Weston (Asst Treasurer Secretary) $0 $0 $0
Chan P Khosla (Director) $0 $0 $0
Mary A Fox (Director) $0 $0 $0
Duncan Agnew (Secretary) $0 $0 $0
M Leinen (Director) $0 $0 $0
Wayne Farqharson (Asst Secretary) $0 $0 $0
Steve Constable (Director Igpp) $0 $0 $0
+ View more people

Document Links

990
Filed on Nov. 8, 2018

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending March
2017

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$1,043,558
Expenses
$355,654
Net Income
$687,904
Net Assets
$7,738,306
Notable Sources of Revenue Percent of Total Revenue
Contributions $19,289
1.8%
Program Services $0
Investment Income $1,024,269
98.2%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $13,223,975
Total Liabilities $5,485,669
Net Assets $7,738,306
Compensation
Key Employees and Officers Compensation Related Other
Chan P Khosla (Director) $0 $0 $0
Mary A Fox (Director) $0 $0 $0
Donna Weston (Director) $0 $0 $0
M Leinen (Director) $0 $0 $0
Sheldon Engelhorn (President) $0 $0 $0
Donna Blackman (Asst Treasurer Secretary) $0 $0 $0
+ View more people

Document Links

990
Filed on Nov. 27, 2017

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending March
2016

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
-$326,280
Expenses
$273,936
Net Income
-$600,216
Net Assets
$7,049,490
Notable Sources of Revenue Percent of Total Revenue
Contributions $15,934
Program Services $0
Investment Income $151,964
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue -$494,178
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $11,731,136
Total Liabilities $4,681,646
Net Assets $7,049,490

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending March
2015

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$365,599
Expenses
$315,969
Net Income
$49,630
Net Assets
$7,654,102
Notable Sources of Revenue Percent of Total Revenue
Contributions $16,968
4.6%
Program Services $0
Investment Income $143,125
39.1%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $205,506
56.2%
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $13,048,456
Total Liabilities $5,394,354
Net Assets $7,654,102
Compensation
Key Employees and Officers Compensation Related Other
Sheldon Englehorn (Pres.) $0 $0 $0
G Masters (V. Pres.) $0 $0 $0
D Blackman (Asst. Treas./Sec.) $0 $0 $0
Chan P Khosla (Director) $0 $0 $0
M A Foxx (Director) $0 $0 $0
D Weston (Director) $0 $0 $0
Dr M Leinen (Director) $0 $0 $0
Dr W Munk (Director) $0 $0 $0
W Farquarson (Asst. Sec.) $0 $0 $0
() $0 $0 $0
+ View more people

Document Links

990
Filed on Nov. 2, 2015

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending March
2014

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$995,613
Expenses
$283,370
Net Income
$712,243
Net Assets
$7,602,154
Notable Sources of Revenue Percent of Total Revenue
Contributions $150,000
15.1%
Program Services $0
Investment Income $128,196
12.9%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $717,417
72.1%
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $12,793,647
Total Liabilities $5,191,493
Net Assets $7,602,154

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending March
2013

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$605,031
Expenses
$141,017
Net Income
$464,014
Net Assets
$6,874,511
Notable Sources of Revenue Percent of Total Revenue
Contributions $11,069
1.8%
Program Services $0
Investment Income $132,790
21.9%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $461,172
76.2%
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $11,548,455
Total Liabilities $4,673,944
Net Assets $6,874,511

Document Links

990
Filed on Sept. 25, 2013

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending March
2012

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$203,392
Expenses
$228,076
Net Income
-$24,684
Net Assets
$6,422,610
Notable Sources of Revenue Percent of Total Revenue
Contributions $24,077
11.8%
Program Services $0
Investment Income $134,497
66.1%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $44,818
22.0%
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $10,679,049
Total Liabilities $4,256,439
Net Assets $6,422,610

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending March
2011

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending March
2010

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending March
2009

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending March
2008

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending March
2007

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending March
2006

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending March
2005

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending March
2004

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending March
2003

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending March
2002

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

About This Data

What Is This Data?

Nonprofit Explorer includes summary data for nonprofit tax returns and full Form 990 documents, in both PDF and digital formats.

The summary data contains information processed by the IRS during the 2012-2019 calendar years; this generally consists of filings for the 2011-2018 fiscal years, but may include older records. This data release includes only a subset of what can be found in the full Form 990s.

In addition to the raw summary data, we link to PDFs and digital copies of full Form 990 documents wherever possible. This consists of separate releases by the IRS of Form 990 documents processed by the agency, which we update regularly.

We also link to copies of audits nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year since 2016. These audits are copied from the Federal Audit Clearinghouse.

Which Organizations Are Here?

Every organization that has been recognized as tax exempt by the IRS has to file Form 990 every year, unless they make less than $200,000 in revenue and have less than $500,000 in assets, in which case they have to file form 990-EZ. Organizations making less than $50,000 don’t have to file either form but do have to let the IRS they’re still in business via a Form 990N "e-Postcard."

Nonprofit Explorer has organizations claiming tax exemption in each of the 27 subsections of the 501(c) section of the tax code, and which have filed a Form 990, Form 990EZ or Form 990PF. Taxable trusts and private foundations that are required to file a form 990PF are also included. Small organizations filing a Form 990N "e-Postcard" are not included in this data.

Types of Nonprofits

There are 27 nonprofit designations based on the numbered subsections of section 501(c) of the tax code. See the list »

Get the Data

For those interested in acquiring the original data from the source, here’s where our data comes from:

  • Raw filing data. Includes EINs and summary financials as structured data.
  • Exempt Organization profiles. Includes organization names, addresses, etc. You can merge this with the raw filing data using EIN numbers.
  • Form 990 documents. Prior to 2017, these documents were obtained and processed by Public.Resource.org and ProPublica. Bulk PDF downloads since 2017 are available from the IRS.
  • Form 990 documents as XML files. Includes complete filing data (financial details, names of officers, tax schedules, etc.) in machine-readable format. Only available for electronically filed documents. Electronic data released prior to October 2021 is also available through Amazon Web Services.
  • Audits. PDFs of single or program-specific audits for nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year. Available for fiscal year 2015 and later.

API

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About Nonprofit Explorer

Nonprofit Explorer

Browse millions of annual returns filed by tax-exempt organizations with ProPublica’s Nonprofit Explorer. See details like executive compensation, revenue, expenses and more. Search for an organization or a person, or search the full text of filings.

By Andrea Suozzo, Alec Glassford, Ash Ngu and Brandon Roberts.

Design by Jeff Frankl. Additional development by Ken Schwencke, Mike Tigas, and Sisi Wei.

E-file viewer adapted from IRS e-File Viewer by Ben Getson. Code for scraping audit documents adapated from Govwiki.

Updated