CARNEGIE INSTITUTION OF WASHINGTON

EIN 53-0196523 WASHINGTON, DC

Revenue 2024: $106,544,070
Expenses 2024: $112,285,627

Program services were 76.0% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection: 03
NTEE code: U310
Classification: 8000
Street: 5241 BROAD BRANCH RD NW

These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).

Mission and programs · 2024

Mission

SEE SCHEDULE O.

SEE SCHEDULE O.

Expenses $74,965,605 · Revenue $12,305,423
SEE SCHEDULE O.

Expenses $10,389,380 · Grants $1,371,719

As filed on the 2024 return. The filer continues this part on Schedule O, which is not shown here.

Officers and directors · 2024

As listed in Part VII of the 2024 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

CRAIG R BARRETT

CHAIRMAN

Total calculated

$0

Hours/week

6
DAVID THOMPSON

VICE CHAIRMAN

Total calculated

$0

Hours/week

6
ANNE BONAPARTE

TRUSTEE

Total calculated

$0

Hours/week

1
SUZANNE BRENNER

TRUSTEE (BEG (4/25)

Total calculated

$0

Hours/week

1
JOHN F CRAWFORD

TRUSTEE

Total calculated

$0

Hours/week

1
MICHAEL A DUFFY

TRUSTEE

Total calculated

$0

Hours/week

2
SANDRA M FABER

TRUSTEE

Total calculated

$0

Hours/week

1
STEPHEN PA FODOR

TRUSTEE (THRU 5/25)

Total calculated

$0

Hours/week

1
RUSH D HOLT JR

TRUSTEE (THRU 5/25)

Total calculated

$0

Hours/week

1
TOM KORZENECKI

TRUSTEE

Total calculated

$0

Hours/week

2
KATHERINE LAPP

TRUSTEE (THRU 5/25)

Total calculated

$0

Hours/week

1
MICHAEL LONG

TRUSTEE

Total calculated

$0

Hours/week

1
MARY E MAXON

TRUSTEE & SENIOR VICE PRESIDENT

Total calculated

$123,683

From this org

$110,275

From related orgs

$0

Other

$13,408

Hours/week

41
CHRISTINE M MCCARTHY

TRUSTEE

Total calculated

$0

Hours/week

2
STEPHEN QUAKE

TRUSTEE

Total calculated

$0

Hours/week

1
RAY ROTHROCK

TRUSTEE

Total calculated

$0

Hours/week

1
CRISTIAN SAMPER

TRUSTEE

Total calculated

$0

Hours/week

1
DAVID SPERGEL

TRUSTEE

Total calculated

$0

Hours/week

2
CHRISTOPHER TS STONE

TRUSTEE

Total calculated

$0

Hours/week

1
MARSHALL WAIS

TRUSTEE

Total calculated

$0

Hours/week

1
MICHAEL WILSON

TRUSTEE

Total calculated

$0

Hours/week

1
JOHN S MULCHAEY - PRESIDENT

(BEG 10/24); DIV DIR (THRU 10/24)

Total calculated

$536,778

From this org

$461,399

From related orgs

$0

Other

$75,379

Hours/week

41

Schedule J breakdown matched by us

Base

$458,303

Bonus

$0

Other

$3,096

Deferred

$61,962

Nontaxable benefits

$13,417

Filer's total

$536,778
BENJAMIN J ADERSON

GENERAL COUNSEL & SECRETARY

Total calculated

$436,323

From this org

$369,357

From related orgs

$0

Other

$66,966

Hours/week

40

Schedule J breakdown matched by us

Base

$345,659

Bonus

$0

Other

$23,698

Deferred

$50,663

Nontaxable benefits

$16,303

Filer's total

$436,323
DR ERIC D ISAACS

PRESIDENT (THRU 12/24)

Total calculated

$978,001

From this org

$879,169

From related orgs

$0

Other

$98,832

Hours/week

40

Schedule J breakdown matched by us

Base

$761,150

Bonus

$87,500

Other

$30,519

Deferred

$69,000

Nontaxable benefits

$29,832

Filer's total

$978,001
RANDY STRINGER

INTERIM CFO & TREASURER (BEG 4/25)

Total calculated

$0

Hours/week

40

The first 25 listed. Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead, and on a Form 990-PF Part VIII's — compensation, contributions to benefit plans, and expense account — and the total sums those. A Schedule J breakdown is as filed: base pay, bonus, other, deferred compensation and nontaxable benefits from this organization, with any from related organizations beside each, and the filer's own total. It is shown with the Part VII listing of the same name on the same return. The form gives no key between the two, so that pairing is ours, and is marked matched by us. Earlier years are each on their own filing page.

Filings

2024

Revenue

$106,544,070

Expenses

$112,285,627

Contributions

$15,855,216

Grants paid

$1,371,719
2023

Revenue

$85,558,236

Expenses

$113,980,117

Contributions

$19,290,581

Grants paid

$553,314
2022

Revenue

$129,092,421

Expenses

$110,650,959

Contributions

$54,463,490

Grants paid

$678,247

Tax year	Revenue	Expenses	Contributions	Grants paid
2024	$106,544,070	$112,285,627	$15,855,216	$1,371,719
2023	$85,558,236	$113,980,117	$19,290,581	$553,314
2022	$129,092,421	$110,650,959	$54,463,490	$678,247

The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.

Other returns filed

2023 · 990-T

Revenue

not reported

Expenses

not reported

Assets (EOY)

not reported
2022 · 990-T

Revenue

not reported

Expenses

not reported

Assets (EOY)

not reported
2021 · 990

Revenue

$164,744,772

Expenses

$98,417,818

Assets (EOY)

$1,305,606,009
2021 · 990-T

Revenue

not reported

Expenses

not reported

Assets (EOY)

not reported
2020 · 990

Revenue

$127,997,936

Expenses

$92,955,434

Assets (EOY)

$1,453,446,708
2020 · 990-T

Revenue

not reported

Expenses

not reported

Assets (EOY)

not reported
2019 · 990

Revenue

$73,959,417

Expenses

$93,995,644

Assets (EOY)

$1,261,312,947
2018 · 990

Revenue

$137,841,470

Expenses

$96,120,041

Assets (EOY)

$1,206,419,667
2017 · 990

Revenue

$90,205,505

Expenses

$97,937,551

Assets (EOY)

$1,239,346,085
2016 · 990

Revenue

$147,301,886

Expenses

$100,297,805

Assets (EOY)

$1,204,970,912

Tax year	Form	Revenue	Expenses	Assets (EOY)
2023	990-T	not reported	not reported	not reported
2022	990-T	not reported	not reported	not reported
2021	990	$164,744,772	$98,417,818	$1,305,606,009
2021	990-T	not reported	not reported	not reported
2020	990	$127,997,936	$92,955,434	$1,453,446,708
2020	990-T	not reported	not reported	not reported
2019	990	$73,959,417	$93,995,644	$1,261,312,947
2018	990	$137,841,470	$96,120,041	$1,206,419,667
2017	990	$90,205,505	$97,937,551	$1,239,346,085
2016	990	$147,301,886	$100,297,805	$1,204,970,912

Nonprofiteer parses Forms 990, 990-EZ and 990-PF, in a window of recent tax years. These returns are recorded from the IRS e-file index, so their figures were extracted by that index rather than read from the return here — treat them as a different source from the filings above, not as more of the same record. A dash means the index carries no figure; Form 990-T listings carry none at all. Showing the 10 most recent; the API carries the rest.

Grants made

No itemized grants to organizations. Schedule I is filed only by organizations that granted more than $5,000 to a recipient, so most filers have none.

Grants received

ASSOCIATION OF UNIVERSITIES FOR

$1,202,662

2024 SCIENTIFIC RESEARCH ON DATA FROM HUBBLE SPACE TELESCOPE AND/OR JAMES WEBB SPACE TELESCOPE
ASSOCIATION OF UNIVERSITIES FOR

$1,083,356

2023 SCIENTIFIC RESEARCH ON DATA FROM HUBBLE SPACE TELESCOPE
ASSOCIATION OF UNIVERSITIES FOR

$757,144

2022 SCIENTIFIC RESEARCH ON DATA FROM HUBBLE SPACE TELESCOPE
REVIVE & RESTORE

$454,371

2023 GRANT FOR SCIENTIFIC RESEARCH: ADVANCED CORAL TOOLKIT PROJECT WITH CORAL SCREENING PLATFORM
HOWARD HUGHES MEDICAL INSTITUTE

$414,690

2023 H. Gray Scholars - Grant
JOHNS HOPKINS UNIVERSITY

$365,446

2023 SUB-AWARD
DONALD DANFORTH PLANT SCIENCE CENTER

$325,589

2023 RESEARCH
DONOR ADVISED CHARITABLE GIVING

$186,550

2022 PUBLIC, SOCIETAL BENEFIT
DONOR ADVISED CHARITABLE GIVING

$153,300

2024 PUBLIC, SOCIETAL BENEFIT
CLIMATEWORKS FOUNDATION

$150,000

2022 PROJECT SUPPORT

The 10 largest by cash amount. The API serves every itemized grant.

Taxable family

From Schedule R Parts I, III and IV: entities that legally are the filer, and taxable partnerships, corporations and trusts it is related to. These record ownership and control, not shared board members or money.

Related corporations and trusts on its 2024 return

CARNEGIE SCIENCE HOLDINGS

C · HOLDING · DE · 100% owned · share of income -$8,174 · share of assets $95,916 · controlled entity

Other IRS files

Auto-Revocation List

Not listed. The IRS publishes this list for organizations whose exemption was automatically revoked for failing to file for three consecutive years.

Publication 78

Listed as of 13 October 2026, under deductibility PC.

These are two separate IRS files on two separate schedules, shown as published and not reconciled with each other. Neither is a statement about whether a contribution is deductible today: 19,245 organizations appear in Publication 78 while the IRS's own revocation file lists them as currently revoked, more than half of those revoked before 2019. Absence from Publication 78 is evidence of nothing, and presence is not evidence either. Verify current status with the IRS before relying on it.

What this page reflects

The registration facts above come from the IRS Business Master File published 13 October 2026 and read 26 October 2026, for every organization at once. Returns through tax year 2024, the newest we have parsed for this organization.