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Nonprofit · EIN 95-3423566

THE PLANETARY SOCIETY

Tax-exempt · PASADENA, CA 91101

Financials

$5.2M$7.2M2023$7.5M$7.6M2024
Revenue Expenses · by fiscal year end
Financials of THE PLANETARY SOCIETY by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
September 30, 2025990$7,526,105$7,622,888-$96,783$7,780,673$1,723,958$6,056,715
September 30, 2024990$5,198,586$7,225,780-$2,027,194$8,038,153$1,975,090$6,063,063
Financial details: 990 for the year ended September 30, 2025

Revenue

Contributions, gifts and grants
$7,489,281
Membership dues
$2,769,646
Program service revenue
$0
Investment income
$117,966
Net income from fundraising events
-$108,398
Other revenue
-$81,142

Expenses

Grants and similar amounts paid
$114,962
Compensation of officers, directors and key employees
$1,343,185
Other salaries and wages
$2,096,082
Salaries, compensation and benefits (total)
$4,183,583
Professional fundraising fees
$0
Legal fees
$11,058
Accounting fees
$21,950
Occupancy
$238,687
Travel
$77,038
Depreciation
$300,000
Program services (functional)
$5,069,218
Management and general (functional)
$973,598
Fundraising (functional)
$1,580,072

Balance sheet and other

Total assets, start of year
$8,038,153
Total assets, end of year
$7,780,673
Total liabilities, end of year
$1,723,958
Net assets, end of year
$6,056,715
Land, buildings and equipment
$1,489,810
Publicly traded securities
$1,285,669
Net assets without donor restrictions
$1,294,630
Net assets with donor restrictions
$4,762,085
Gross receipts
$7,700,392
Employees
28
Volunteers
35
Year formed
1979
State of legal domicile
CA

From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.

Officers, directors and key employees

As listed on the 990 for the year ended September 30, 2025, highest compensation first.

NameTitleHours / weekCompensationOther / benefits
WILLIAM NYEDIRECTOR AND CEO
Officer
20$233,565$17,060
JENNIFER VAUGHNCOO
Highest-paid employee
40$212,834$28,932
JIM SUHCHIEF FINANCIAL OFFICER
Highest-paid employee
40$180,080$24,454
RICHARD CHUTECHIEF DEVELOPMENT OFFICER
Highest-paid employee
40$173,765$28,536
BRUCE BETTSCHIEF SCIENTIST
Highest-paid employee
40$155,679$26,338
DANIELLE GUNNCHIEF COMMUNICATIONS OFFICER
Highest-paid employee
40$157,800$21,686
CASEY DREIERCHIEF OF SPACE POLICY
Highest-paid employee
40$157,721$20,665
LORNE TROTTIERDIRECTOR
Trustee or director
2$0$0
BIJAL HAYES-THAKOREDIRECTOR
Trustee or director
2$0$0
JOHN LOGSDONDIRECTOR
Trustee or director
2$0$0
ROBERT PICARDODIRECTOR
Trustee or director
2$0$0
BRITNEY SCHMIDTDIRECTOR
Trustee or director
2$0$0
DIPAK SRINIVASANDIRECTOR
Trustee or director
2$0$0
JOHN GRUNSFELDDIRECTOR
Trustee or director
2$0$0
NEWTON CAMPBELLDIRECTOR
Trustee or director
2$0$0
5 more people on this return
NameTitleHours / weekCompensation
DAN GERACICHAIRMAN
Officer
5$0
JAMES BELLSECRETARY
Officer
2$0
HEIDI HAMMELVICE PRESIDENT
Officer
2$0
BETHANY EHLMANNPRESIDENT
Officer
5$0
LON LEVINTREASURER
Officer
2$0
990 for the year ended September 30, 2024: 18 people
NameTitleHours / weekCompensationOther / benefits
WILLIAM NYEDIRECTOR AND CEO
Officer
20$234,360$16,405
JENNIFER VAUGHNCOO
Highest-paid employee
40$213,560$26,821
JIM SUHCHIEF FINANCIAL OFFICER
Highest-paid employee
40$180,696$22,676
RICHARD CHUTECHIEF DEVELOPMENT OFFICER
Highest-paid employee
40$174,862$26,684
CASEY DREIERCHIEF OF SPACE POLICY
Highest-paid employee
40$164,784$19,451
BRUCE BETTSCHIEF SCIENTIST
Highest-paid employee
40$158,444$23,462
LORNE TROTTIERDIRECTOR
Trustee or director
2$0$0
BIJAL HAYES-THAKOREDIRECTOR
Trustee or director
2$0$0
JOHN LOGSDONDIRECTOR
Trustee or director
2$0$0
ROBERT PICARDODIRECTOR
Trustee or director
2$0$0
BRITNEY SCHMIDTDIRECTOR
Trustee or director
2$0$0
DIPAK SRINIVASANDIRECTOR
Trustee or director
2$0$0
JOHN GRUNSFELDDIRECTOR
Trustee or director
2$0$0
DAN GERACICHAIRMAN
Officer
5$0$0
JAMES BELLSECRETARY
Officer
2$0$0
HEIDI HAMMELVICE PRESIDENT
Officer
2$0$0
BETHANY EHLMANNPRESIDENT
Officer
5$0$0
LON LEVINTREASURER
Officer
2$0$0

Address and contacts

Address (IRS master file)
60 S LOS ROBLES AVE, PASADENA, CA 91101-2016
Principal officer (990 for 2024)
LARRY BROGAN, 60 SOUTH LOS ROBLES AVENUE, PASADENA, CA 91101
Signed the 990
LARRY BROGAN, CFO
Phone
(626) 793-5100
Return prepared by
HENSIEK & CARON CPA'S

California records

California keeps its own records of charities and corporations. Search them by EIN 95-3423566 or by the name THE PLANETARY SOCIETY.

Attorney General, Registry of Charities and Fundraisers
Registration status and filed reports (CT-TR-1, RRF-1)

Mission

THE PLANETARY SOCIETY EMPOWERS THE WORLD'S CITIZENS TO ADVANCE SPACE SCIENCE AND EXPLORATION. TOGETHER WITH OUR MEMBERS, THE PLANETARY SOCIETY DEVELOPS SPACE TECHNOLOGY, GUIDES FUTURE SPACE POLICY, AND INSPIRES PEOPLE OF ALL AGES TO VALUE THE ADVENTURE OF EXPLORATION AND THE JOY OF DISCOVERY.

990 for the year ended September 30, 2025

Program accomplishments

  • SCIENCE & TECHNOLOGY:THE PLANETARY SOCIETY INVESTS IN SCIENCE AND TECHNOLOGY PROJECTS TO ADVANCE INNOVATIVE SPACE EXPLORATION SOLUTIONS AND RESEARCH. WE PROVIDE SEED FUNDING TO SCIENCE AND TECHNOLOGY PROJECTS THAT ADVANCE PLANETARY EXPLORATION, THE SEARCH FOR LIFE, AND PLANETARY DEFENSE.
    Expenses $289,167 · grants $89,962
  • COMMUNICATION AND EDUCATION:THROUGH EDUCATION AND COMMUNICATIONS, THE PLANETARY SOCIETY EXPANDS THE HORIZONS OF PUBLIC KNOWLEDGE ABOUT SPACE EXPLORATION AND HELPS CITIZENS EDUCATE OTHERS ABOUT SPACE. OUR PUBLIC INFORMATION PROJECTS INCLUDE THE PLANETARY REPORT, OUR QUARTERLY MAGAZINE FOR OUR MEMBERS AND SUPPORTERS; PLANETARY RADIO, OUR WEEKLY RADIO SHOW; OUR WEBSITE - PLANETARY.ORG; AND OUR SOCIAL MEDIA CHANNELS. THE SOCIETY ACHIEVES SOME OF ITS PROGRAMMATIC GOALS THROUGH PUBLIC EDUCATION MAILINGS THAT INCLUDE REQUESTS FOR CONTRIBUTIONS. AS A RESULT, AND IN ACCORDANCE WITH THE FINANCIAL ACCOUNTING STANDARDS BOARD (FASB) GUIDELINES, WE ALLOCATE A PORTION OF OUR DIRECT MAIL COSTS TO PROGRAM SERVICES AND TO FUNDRAISING.
    Expenses $3,050,239 · grants $25,000
  • MEMBERSHIP:OUR MEMBERSHIP PROGRAM CONNECTS SPACE-INTERESTED CITIZENS WORLDWIDE AND PROVIDES OPPORTUNITIES FOR THEM TO PARTICIPATE IN SPACE ACTIVITIES. OUR MEMBERSHIP ACTIVITIES INCLUDE MAINTAINING DETAILED RECORDS TO SUPPORT OUR MEMBERS AND NON-MEMBERS WHO HAVE CHOSEN TO PARTICIPATE IN OUR PROGRAMS. OUR MEMBERSHIP TEAM INTERACTS WITH MEMBERS AND THE GENERAL PUBLIC TO ANSWER QUESTIONS AND MANAGE BENEFITS AND SERVICES. THE PLANETARY SOCIETY HAS MORE THAN 36,000 MEMBERS. THE SOCIETY ACHIEVES SOME OF ITS INFORMATION TECHNOLOGY PROGRAMMATIC GOALS THROUGH MEMBERSHIP SERVICES SOFTWARE THAT INCLUDES THE FUNDRAISING MODULE. AS A RESULT, AND IN ACCORDANCE WITH THE FINANCIAL ACCOUNTING STANDARDS BOARD (FASB) GUIDELINES, WE ALLOCATE A PORTION OF OUR SOFTWARE COSTS TO PROGRAM SERVICES AND TO FUNDRAISING.
    Expenses $1,181,125
  • SPACE POLICY:THE PLANETARY SOCIETY HELPS SHAPE PUBLIC POLICY TO ENSURE NASA HAS THE SUPPORT AND RESOURCES TO EXPLORE PLANETS, SEARCH FOR LIFE, AND DEFEND THE EARTH FROM ASTEROIDS.
    Expenses $548,687 · revenue $27,256

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in September, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025September 30, 2026February 15, 2027Not due yet
2024September 30, 2025February 16, 2026990 on file
2023September 30, 2024February 17, 2025990 on file

IRS record

EIN
95-3423566
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (170(b)(1)(A)(vi))
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
1980
Accounting year ends
September
Files
Form 990 or 990-EZ
Assets (IRS master file)
$7,780,673
Income (IRS master file)
$7,700,392

Filing history

FormYear endedRevenueExpensesAssetsReturn
990September 2025$7,526,105$7,622,888$7,780,673XML
990September 2024$5,198,586$7,225,780$8,038,153XML
990September 2023$6,313,313$7,509,258$10,311,558IRS
990September 2022$4,905,895$6,232,294$9,508,979IRS
990September 2021–––IRS
990September 2020–––IRS
990September 2019–––IRS
990September 2018–––IRS

990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 95-3423566).

Questions about THE PLANETARY SOCIETY

What is the EIN of THE PLANETARY SOCIETY?
The employer identification number (EIN) of THE PLANETARY SOCIETY is 95-3423566.
Is THE PLANETARY SOCIETY tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1980.
Are donations to THE PLANETARY SOCIETY tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does THE PLANETARY SOCIETY file?
Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
When is the next return of THE PLANETARY SOCIETY due?
The return for tax year 2025 (the year ending September 30, 2026) is due February 15, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did THE PLANETARY SOCIETY last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended September 2025.
Who is the principal officer of THE PLANETARY SOCIETY?
The 990 for the year ended September 30, 2025 names LARRY BROGAN.
Who are the officers and directors of THE PLANETARY SOCIETY?
The 990 for the year ended September 30, 2025 lists 20 people; 7 received compensation from the organization, the highest $233,565 (WILLIAM NYE, DIRECTOR AND CEO).
How much revenue does THE PLANETARY SOCIETY have?
On its 990 for the year ended September 30, 2025 it reported revenue of $7,526,105, expenses of $7,622,888 and total assets of $7,780,673 at year end.

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