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EIN 26-0799587

Heising Simons Foundation

IRS 501(c) type
501(c)(3)
Num. employees
57
City
Los Altos
State
California
Year formed
2007
Most recent tax filings
2023-12-01
NTEE code, primary
T20: Private Foundations
Description
Heising-Simons Foundation works with its many partners to advance sustainable solutions in climate and clean energy, enable groundbreaking research in science, enhance the education of their youngest learners, and support human rights for all people.
Total revenues
$152,079,826
2023
Total expenses
$189,529,079
2023
Total assets
$872,096,521
2023
Num. employees
57
2023

Program areas at Heising Simons Foundation

For 51 pegasi b science summit expenses
For facilitation of families lead California community of practice
For California department of education senior policy advisor
Property tax refund

Grants made by Heising Simons Foundation

GranteeGrant descriptionAmount
Regents of the University of California at BerkeleyTo Test the Quantum Coherence of Gravity$1,562,429
Third Sector New England (TSNE)For the Early Childhood Investment Collaborative$1,550,000
Edvance CollegeFor General Support$1,500,000
...and 595 more grants made totalling $120,095,376

Who funds Heising Simons Foundation

Grants from foundations and other nonprofits
GrantmakerDescriptionAmount
PolicyLinkCrosscutting Strategies$71,298

Financials for Heising Simons Foundation

RevenuesFYE 12/2023
Total grants, contributions, etc.$140,000,000
Investment income and dividends$10,770,193
Net rental income$0
Net gain from sale of non-inventory assets$1,309,633
Gross sales of inventory$0
Miscellaneous revenues$0
Total revenues$152,079,826

Organizations like Heising Simons Foundation

OrganizationLocationRevenue
Mcelhattan FoundationPittsburgh, PA$152,882,594
Gordon E and Betty I Moore FoundationPalo Alto, CA$371,750,377
The Schmidt Family Foundation (TSFF)Palo Alto, CA$116,291,888
The Ford Family FoundationRoseburg, OR$54,265,021
John S. and James L. Knight FoundationMiami, FL$86,858,117
Annenberg FoundationConshohocken, PA$131,626,861
Conrad N. Hilton FoundationWestlake Village, CA$339,969,771
W. M. Keck FoundationLos Angeles, CA$74,686,983
Bainum Family FoundationBethesda, MD$50,008,492
Peter Kiewit FoundationOmaha, NE$49,276,013
Data update history
January 5, 2025
Posted financials
Added Form 990PF for fiscal year 2023
December 26, 2024
Used new vendors
Identified 3 new vendors, including , , and
April 24, 2024
Updated personnel
Identified 6 new personnel
January 4, 2024
Posted financials
Added Form 990PF for fiscal year 2022
December 25, 2023
Used new vendors
Identified 2 new vendors, including , and
Nonprofit Types
Grantmaking organizationsPrivate foundationsFamily foundationsPrivate non-operating foundationsCharities
Issues
Education
Characteristics
Provides grantsPartially liquidatedTax deductible donationsAccepts online donations
General information
Address
400 Main St 200
Los Altos, CA 94022
Metro area
San Jose-Sunnyvale-Santa Clara, CA
County
Santa Clara County, CA
Website URL
hsfoundation.org/ 
Phone
(650) 887-0277
Twitter profile
@hsfdn 
IRS details
EIN
26-0799587
Fiscal year end
December
Taxreturn type
Form 990-PF
Year formed
2007
Eligible to receive tax-deductible contributions (Pub 78)
Yes
Categorization
NTEE code, primary
T20: Private Foundations
NAICS code, primary
813211: Grantmaking Foundations
Parent/child status
Independent
California AB-488 details
AB 488 status
May Operate or Solicit for Charitable Purposes
Charity Registration status
Current
FTB status revoked
Not revoked
AG Registration Number
CT0135715
FTB Entity ID
3008134
AB 488 data last updated ("as-of") date
2025-07-02
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