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Nonprofit · EIN 23-2909123

SCIENCE HISTORY INSTITUTE SUPPORT COMPANY

Tax-exempt · PHILADELPHIA, PA 19106

Financials

$6.4M$9.5M2022$32.7M$9.5M2023$2.9M$18M2024
Revenue Expenses · by fiscal year end
Financials of SCIENCE HISTORY INSTITUTE SUPPORT COMPANY by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
June 30, 2025990$2,944,541$18,007,050-$15,062,509$226,789,268$1,521,287$225,267,981
June 30, 2024990$32,713,468$9,524,284$23,189,184$213,908,006$1,740,791$212,167,215
June 30, 2023990$6,352,359$9,493,908-$3,141,549$195,362,922$1,784,697$193,578,225
Financial details: 990 for the year ended June 30, 2025

Revenue

Contributions, gifts and grants
$0
Program service revenue
$1,176
Investment income
$2,943,365
Net gain from sales of assets
$1,992,439
Other revenue
$0

Expenses

Grants and similar amounts paid
$4,450,207
Compensation of officers, directors and key employees
$268,714
Other salaries and wages
$1,131,571
Salaries, compensation and benefits (total)
$1,757,734
Professional fundraising fees
$0
Legal fees
$6,726
Accounting fees
$12,752
Occupancy
$279,747
Travel
$33,129
Depreciation
$950,200
Program services (functional)
$17,757,316
Management and general (functional)
$249,734

Balance sheet and other

Total assets, start of year
$213,908,006
Total assets, end of year
$226,789,268
Total liabilities, end of year
$1,521,287
Net assets, end of year
$225,267,981
Publicly traded securities
$225,741,929
Net assets without donor restrictions
$14,638,040
Net assets with donor restrictions
$210,629,941
Gross receipts
$18,235,685
Employees
0
Volunteers
30
Year formed
1997
State of legal domicile
PA

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 June 30, 2025, highest compensation first.

NameTitleHours / weekCompensationFrom related orgsOther / benefits
DAVID COLEPRESIDENT & CHIEF EXECUTIVE OFFICER
Officer
10$0$426,732$46,127
KEVIN CAVANAUGHTREASURER, SENIOR VP, CAO & CFO
Key employee
10$0$267,150$41,569
MICHELLE DIMEOVP OF COLLECTIONS AND PROGRAMS
Key employee
25$0$179,825$22,277
CHARLES HORNSTEINDIRECTOR, IT
Highest-paid employee
5$0$142,349$26,773
PONCE HATCHDIRECTOR, END USER EXPERIENCE
Highest-paid employee
5$0$125,024$17,949
ALEXIS PEDRICKCHIEF STORYTELLER
Highest-paid employee
5$0$110,450$16,008
BETH ALFARODIRECTOR OF HR
Highest-paid employee
5$0$116,808$8,834
CAITLIN MARTINSECRETARY, DIRECTOR OF COMMUNICATIONS
Officer
5$0$92,802$31,088
JAMES VOELKELCURATOR OF RARE BOOKS, OTHMER LIBRARY
Highest-paid employee
30$0$106,286$7,986
STEPHANIE KISHTREASURER, CHIEF FINANCIAL OFFICER
Officer
10$0$99,377$14,839
LEWIS GASOREKBOARD MEMBER & CHAIR
Trustee or director, Officer
3$0$0$0
SHARON L HAYNIEBOARD MEMBER & VICE CHAIR
Trustee or director, Officer
1$0$0$0
DANIEL D ADAMSBOARD MEMBER
Trustee or director
1$0$0$0
CYNTHIA CAIBOARD MEMBER
Trustee or director
1$0$0$0
T BOND CALLOWAY JRBOARD MEMBER
Trustee or director
1$0$0$0
14 more people on this return
NameTitleHours / weekCompensation
MICHAEL DESIMONEBOARD MEMBER
Trustee or director
1$0
ROD FERGUSONBOARD MEMBER
Trustee or director
1$0
JOHN HENRYBOARD MEMBER
Trustee or director
1$0
NICHOLAS J KOVICHBOARD MEMBER
Trustee or director
1$0
LAURIE J LANDEAUBOARD MEMBER
Trustee or director
1$0
FRANK LIPIECKIBOARD MEMBER
Trustee or director
1$0
FRED A MIDDLETONBOARD MEMBER
Trustee or director
1$0
LOUISE Y PALMERBOARD MEMBER
Trustee or director
1$0
OCTAVIO TONATIUH RAMIEREZ-REIVICHBOARD MEMBER
Trustee or director
1$0
CATHERINE SOHNBOARD MEMBER
Trustee or director
1$0
JEFFREY L STURCHIOBOARD MEMBER
Trustee or director
1$0
MARY TANNERBOARD MEMBER
Trustee or director
1$0
CHERYL TEICHBOARD MEMBER
Trustee or director
1$0
SAM THARPEBOARD MEMBER
Trustee or director
1$0
990 for the year ended June 30, 2024: 29 people
NameTitleHours / weekCompensationFrom related orgsOther / benefits
DAVID COLEPRESIDENT & CEO
Officer
30$0$416,535$45,054
KEVIN CAVANAUGHFORMER - TREASURER, SENIOR VP, CAO & CFO
Officer
30$0$255,274$40,254
RESA THOMASONEXECUTIVE DIRECTOR, SCI AMERICA
Highest-paid employee
40$0$193,968$21,934
MICHELLE DIMEOVP OF COLLECTIONS AND PROGRAMS
Key employee
15$0$160,079$20,427
CHARLES HORNSTEINDIRECTOR OF IT
Highest-paid employee
35$0$138,722$26,030
PONCE HATCHDIRECTOR, END USER EXPERIENCE
Highest-paid employee
35$0$117,931$17,095
ERIN MCCLEARYDIRECTOR OF STRATEGIC INITIATIVES
Former
40$0$115,454$17,083
BETH ALFARODIRECTOR OF HR
Highest-paid employee
35$0$111,105$8,463
CAITLIN MARTINSECRETARY, DIRECTOR OF COMMUNICATIONS
Officer
35$0$80,210$20,559
LEWIS GASOREKBOARD MEMBER & CHAIR
Trustee or director, Officer
3$0$0$0
SHARON L HAYNIEBOARD MEMBER & VICE CHAIR
Trustee or director, Officer
1$0$0$0
DANIEL D ADAMSBOARD MEMBER
Trustee or director
1$0$0$0
CYNTHIA CAIBOARD MEMBER
Trustee or director
1$0$0$0
T BOND CALLOWAY JRBOARD MEMBER
Trustee or director
1$0$0$0
MICHAEL DESIMONEBOARD MEMBER
Trustee or director
1$0$0$0
JOHN HENRYBOARD MEMBER
Trustee or director
1$0$0$0
CATHERINE KEENANBOARD MEMBER
Trustee or director
1$0$0$0
NICHOLAS J KOVICHBOARD MEMBER
Trustee or director
1$0$0$0
LAURIE J LANDEAUBOARD MEMBER
Trustee or director
1$0$0$0
FRANK LIPIECKIBOARD MEMBER
Trustee or director
1$0$0$0
FRED A MIDDLETONBOARD MEMBER
Trustee or director
1$0$0$0
LOUISE Y PALMERBOARD MEMBER
Trustee or director
1$0$0$0
OCTAVIO TONATIUH RAMIEREZ-REIVICHBOARD MEMBER
Trustee or director
1$0$0$0
KATHLEEN SHELTONBOARD MEMBER
Trustee or director
1$0$0$0
CATHERINE SOHNBOARD MEMBER
Trustee or director
1$0$0$0
JEFFREY L STURCHIOBOARD MEMBER
Trustee or director
1$0$0$0
MARY TANNERBOARD MEMBER
Trustee or director
1$0$0$0
CHERYL TEICHBOARD MEMBER
Trustee or director
1$0$0$0
SAM THARPEBOARD MEMBER
Trustee or director
1$0$0$0
990 for the year ended June 30, 2023: 27 people
NameTitleHours / weekCompensationFrom related orgsOther / benefits
DAVID COLEPRESIDENT & CEO
Officer
10$0$404,524$46,255
KEVIN CAVANAUGHTREASURER, SR. VP CAO & CFO
Officer
10$0$246,552$38,665
RESA P THOMASONSECRETARY, VP OF STRATEGIC PARTNERSHIPS
Officer
5$0$189,546$21,546
THOMAS SWIFTDIRECTOR OF INFRASTRUCTURE - FORMER
Highest-paid employee
10$0$150,839$26,738
MICHELLE DIMEOVP OF COLLECTIONS & PROGRAMS
Highest-paid employee
30$0$144,722$17,165
CHARLES HORNSTEINDIRECTOR IT
Highest-paid employee
5$0$131,697$24,799
ERIN MCLEARYDIRECTOR OF STRATEGIC INITIATIVES
Highest-paid employee
0$0$111,447$16,486
PONCE HATCHSENIOR SYSTEMS ADMINISTRATOR
Highest-paid employee
5$0$109,129$16,152
LEWIS GASOREKBOARD MEMBER & CHAIR
Trustee or director, Officer
3$0$0$0
SHARON L HAYNIEBOARD MEMBER & VICE CHAIR
Trustee or director, Officer
1$0$0$0
DANIEL D ADAMSBOARD MEMBER
Trustee or director
1$0$0$0
CYNTHIA CAIBOARD MEMBER
Trustee or director
1$0$0$0
T BOND CALLOWAY JRBOARD MEMBER
Trustee or director
1$0$0$0
ROBERT FOXBOARD MEMBER
Trustee or director
1$0$0$0
CATHERINE KEENANBOARD MEMBER
Trustee or director
1$0$0$0
NICHOLAS J KOVICHBOARD MEMBER
Trustee or director
1$0$0$0
LAURIE J LANDEAUBOARD MEMBER
Trustee or director
1$0$0$0
FRANK LIPIECKIBOARD MEMBER
Trustee or director
1$0$0$0
FRED A MIDDLETONBOARD MEMBER
Trustee or director
1$0$0$0
LOUISE Y PALMERBOARD MEMBER
Trustee or director
1$0$0$0
CHRISTOPHER PAPPASBOARD MEMBER
Trustee or director
1$0$0$0
OCTAVIO TONATIUH RAMIEREZ-REIVICHBOARD MEMBER
Trustee or director
1$0$0$0
KATHLEEN SHELTONBOARD MEMBER
Trustee or director
1$0$0$0
JEFFREY L STURCHIOBOARD MEMBER
Trustee or director
1$0$0$0
MARY TANNERBOARD MEMBER
Trustee or director
1$0$0$0
CHERYL TEICHBOARD MEMBER
Trustee or director
1$0$0$0
SAM THARPEBOARD MEMBER
Trustee or director
1$0$0$0

Address and contacts

Address (IRS master file)
315 CHESTNUT ST, PHILADELPHIA, PA 19106-2702
In care of
% WILLIAM E TAYLOR
Principal officer (990 for 2024)
STEPHANIE KISH, 315 CHESTNUT STREET, PHILADELPHIA, PA 19106
Signed the 990
STEPHANIE KISH, TREASURER & CHIEF FINANCIAL OFFICER
Phone
(215) 925-2222
Return prepared by
MORISON COGEN LLP

Mission

THE FUNCTION OF SCIENCE HISTORY INSTITUTE SUPPORT COMPANY IS TO BENEFIT AND PERFORM SOME OF THE FUNCTIONS OF THE SCIENCE HISTORY INSTITUTE. THIS INCLUDES THE LIBRARY SPECIAL COLLECTIONS AND DIGITIZATION.

990 for the year ended June 30, 2025

Program accomplishments

  • THE DONALD F. AND MILDRED TOPP OTHMER LIBRARY OF CHEMICAL HISTORY IS AN INDEPENDENT RESEARCH LIBRARY ENCOMPASSING THE HISTORY OF CHEMISTRY AND RELATED SCIENCES, TECHNOLOGIES, AND INDUSTRIES. OUR LIBRARY HOUSES MORE THAN 150,000 PRINT VOLUMES, INCLUDING RARE BOOKS AND MANUSCRIPTS, ARCHIVAL MATERIALS, MODERN BOOKS AND JOURNALS, AND HISTORICAL PHOTOGRAPHS. THESE EXTENSIVE COLLECTIONS SPAN NEARLY SIX MILES OF SHELVES AND OFFER AN UNRIVALED RESOURCE FOR RESEARCHERS, WITH MODERN BOOKS AND JOURNALS IN 15 LANGUAGES, INCLUDING HARD-TO-FIND SOURCES LIKE DYE SAMPLE BOOKS AND TECHNICAL REPORTS. WE ALSO HAVE ONE OF THE GREATEST COLLECTIONS OF RARE BOOKS ON CHEMISTRY IN THE WORLD, WITH MORE THAN 7,000 VOLUMES FROM THE 15TH TO 19TH CENTURIES.
    Expenses $2,205,896
  • THE SCIENCE HISTORY INSTITUTE ARCHIVES ACTIVELY COLLECTS AND PRESERVES THE PAPERS OF ORGANIZATIONS AND INDIVIDUALS WHOSE WORK HAS SIGNIFICANTLY ADVANCED OUR SCIENTIFIC UNDERSTANDING OF CHEMISTRY, CHEMICAL ENGINEERING, AND THE LIFE SCIENCES AND ITS ALLIED FIELDS. ARCHIVES STAFF COLLECTS, PRESERVES, DESCRIBES, AND MAKES AVAILABLE THE UNIQUE, UNPUBLISHED MATERIALS THAT DOCUMENT THE PAST 200 YEARS OF OUR SCIENTIFIC HISTORY. SPANNING OVER 6,000 LINEAR SHELF FEET, THESE COLLECTIONS ARE A MAJOR ATTRACTION FOR SCHOLARS OF THE MODERN CHEMICAL AND MOLECULAR SCIENCES. WE ACTIVELY COLLECT ARCHIVAL PAPERS FROM OUTSTANDING SCIENTISTS, INDUSTRIES, AND PROFESSIONAL ORGANIZATIONS. COLLECTION STRENGTHS INCLUDE THE FIELDS OF SCIENTIFIC INSTRUMENTATION, CHEMICAL EDUCATION, MATERIALS SCIENCE, QUANTUM CHEMISTRY, AND CHEMICAL ENGINEERING.
    Expenses $11,101,213 · revenue $1,176
  • GRANT TO THE SCIENCE HISTORY INSTITUTE.
    Expenses $4,450,207 · grants $4,450,207

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 June, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025June 30, 2026November 16, 2026Not due yet
2024June 30, 2025November 17, 2025990 on file
2023June 30, 2024November 15, 2024990 on file

IRS record

EIN
23-2909123
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Supporting organization (509(a)(3))
Donations deductible (Pub 78)
Supporting organization of unknown type
Exempt since
1998
Accounting year ends
June
Files
Form 990 or 990-EZ
Category (NTEE)
Education (B700)
Assets (IRS master file)
$226,789,268
Income (IRS master file)
$18,235,685

Filing history

FormYear endedRevenueExpensesAssetsReturn
990June 2025$2,944,541$18,007,050$226,789,268XML
990-TJune 2025–––IRS
990June 2024$32,713,468$9,524,284$213,908,006XML
990-TJune 2024–––IRS
990June 2023$6,352,359$9,493,908$195,362,922XML
990-TJune 2023–––IRS
990June 2022$24,207,148$9,296,311$177,136,622IRS
990-TJune 2022–––IRS
990June 2021–––IRS
990-TJune 2021–––IRS
990June 2020–––IRS
990June 2019–––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 23-2909123).

Questions about SCIENCE HISTORY INSTITUTE SUPPORT COMPANY

What is the EIN of SCIENCE HISTORY INSTITUTE SUPPORT COMPANY?
The employer identification number (EIN) of SCIENCE HISTORY INSTITUTE SUPPORT COMPANY is 23-2909123.
Is SCIENCE HISTORY INSTITUTE SUPPORT COMPANY tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1998.
Are donations to SCIENCE HISTORY INSTITUTE SUPPORT COMPANY tax-deductible?
Yes. It is listed in IRS Publication 78 (Supporting organization of unknown type).
Which annual return does SCIENCE HISTORY INSTITUTE SUPPORT COMPANY 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 SCIENCE HISTORY INSTITUTE SUPPORT COMPANY due?
The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did SCIENCE HISTORY INSTITUTE SUPPORT COMPANY last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended June 2025.
Who is the principal officer of SCIENCE HISTORY INSTITUTE SUPPORT COMPANY?
The 990 for the year ended June 30, 2025 names STEPHANIE KISH.
Who are the officers and directors of SCIENCE HISTORY INSTITUTE SUPPORT COMPANY?
The 990 for the year ended June 30, 2025 lists 29 people; 0 received compensation from the organization.
How much revenue does SCIENCE HISTORY INSTITUTE SUPPORT COMPANY have?
On its 990 for the year ended June 30, 2025 it reported revenue of $2,944,541, expenses of $18,007,050 and total assets of $226,789,268 at year end.

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