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Nonprofit · EIN 25-1027211

COMBUSTION INSTITUTE

Tax-exempt (reinstated) · PITTSBURGH, PA 15213

Financials

$2.1M$1.6M2022$1.4M$919K2023$2.5M$2.2M2024
Revenue Expenses · by fiscal year end
Financials of COMBUSTION INSTITUTE by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
June 30, 2025990-PF$2,517,882$2,215,567$302,315$8,881,221$934,807$7,946,414
June 30, 2024990-PF$1,355,970$919,439$436,531$8,902,340$1,258,241$7,644,099
June 30, 2023990-PF$2,056,717$1,633,303$423,414$7,528,821$321,253$7,207,568
Financial details: 990-PF for the year ended June 30, 2025

Revenue

Dividends
$288,509
Interest
$17,763
Net gain from sales of assets
$86,383
Other income
$2,125,227

Expenses

Grants and similar amounts paid
$0
Compensation of officers, directors and key employees
$0
Salaries, compensation and benefits (total)
$427,673
Disbursements for charitable purposes
$2,168,552
Excise tax on investment income
$4,837

Balance sheet and other

Total assets, start of year
$8,902,340
Total assets, end of year
$8,881,221
Total liabilities, end of year
$934,807
Net assets, end of year
$7,946,414
Fair market value of assets
$10,281,351
Qualifying distributions
$2,168,552
Net investment income
$392,655

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-PF for the year ended June 30, 2025, highest compensation first.

NameTitleHours / weekCompensationOther / benefits
RENNE TASSARI
5001 BAUM BOULEVARD SUITE 644, PITTSBURGH, PA 15213
EXECUTIVE ADMINISTRA
Highest-paid employee
40$123,894$12,389
DEANNA SPILLAR
5001 BAUM BOULEVARD SUITE 644, PITTSBURGH, PA 15213
ORGANIZATIONAL SERVI
Highest-paid employee
40$75,246$7,524
DAVID SHARBAUGH
5001 BAUM BOULEVARD SUITE 644, PITTSBURGH, PA 15213
COMMITTEE AND EVENTS
Highest-paid employee
40$66,500$6,179
AMY WEISS
5001 BAUM BOULEVARD SUITE 644, PITTSBURGH, PA 15213
FINANCIAL ADMINISTRA
Highest-paid employee
40$63,000$3,250
GABRIELLA GRAY
5001 BAUM BOULEVARD SUITE 644, PITTSBURGH, PA 15213
ADMINSTRATIVE ASSIST
Highest-paid employee
40$52,500$3,675
ANDRES FUENTES CASTILLO
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
ASSAAD MASRI
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
VICE PRESIDENT2$0$0
BIN YANG
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
BRYAN S HAYNES
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
CHARLES K WESTBROOK
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
CHRISTIAN HASSE
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
CHRISTINE ROUSSELLE
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
CHUNG KING LAW
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
DANIEL J SEERY
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
DEREK DUNN-RANKIN
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
TREASURER2$0$0
25 more people on this return
NameTitleHours / weekCompensation
EPANIMONDAS MASTORAKOS
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0
ERIC L PETERSEN
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0
HAI WANG
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
PRESIDENT2$0
HAIPING YANG
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0
HENRY CURRAN
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0
JAMES F DRISCOLL
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0
KAORU MARUTA
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0
KATHARINA KOHSE-HOINGHAUS
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0
KELLY SENECAL
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0
LI QIAO
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0
MARA DE JOANNON
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0
MICHAEL E MUELLER
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0
MS RENEE TASSARI
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
EXECUTIVE ADMINISTRA50$0
NAIAN LIU
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0
NILS HANSEN
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0
OSAMU FUJITA
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
VP - SECT AFFAIRS2$0
PERRINE PEPIOT
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0
PHILIPPE DAGAUT
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0
ROBERT F SAWYER
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0
RUUD EGGELS
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0
TERESE LOVAS
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
SECRETARY2$0
TERUYUKI OKAZAKI
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0
WILLIAM ROBERTS
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0
ZHENG CHEN
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
SECRETARY SECTIONAL AFFAIRS2$0
ZHENG CHEN
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0
990-PF for the year ended June 30, 2024: 40 people
NameTitleHours / weekCompensationOther / benefits
MS RENEE TASSARI
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
EXECUTIVE ADMINISTRA50$112,631$11,263
DEANNA SPILLAR
5001 BAUM BOULEVARD SUITE 644, PITTSBURGH, PA 15213
ORGANIZATIONAL SERVI
Highest-paid employee
40$71,663$7,166
DAVID SHARBAUGH
5001 BAUM BOULEVARD SUITE 644, PITTSBURGH, PA 15213
COMMITTEE AND EVENTS
Highest-paid employee
40$61,792$6,179
AMY WEISS
5001 BAUM BOULEVARD SUITE 644, PITTSBURGH, PA 15213
FINANCIAL ADMINISTRA
Highest-paid employee
40$60,008$3,250
GABRIELLA GRAY
5001 BAUM BOULEVARD SUITE 644, PITTSBURGH, PA 15213
ADMINSTRATIVE ASSIST
Highest-paid employee
40$50,003$3,500
DRAVEN MARINO
5001 BAUM BOULEVARD SUITE 644, PITTSBURGH, PA 15213
COMMUNICATIONS & WEB
Highest-paid employee
40$44,101$4,410
BRYAN S HAYNES
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
CHUNG KING LAW
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
DEREK DUNN-RANKIN
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
TREASURER2$0$0
DR PHILIPPE DAGAUT
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
PRESIDENT2$0$0
EPANIMONDAS MASTORAKOS
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
FEI QI
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
SECRETARY SECTIONAL AFFAIRS2$0$0
FREDERIQUE BATTEN-LECLERC
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
HAI WANG
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
VICE PRESIDENT2$0$0
HAIPING YANG
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
HENRY CURRAN
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
JAMES DRISCOLL
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
KANG YUL HUH
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
KAORU MARUTA
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
KATHARINA KOHSE-HOINGHAUS
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
LI QIAO
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
MARA DE JOANNON
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
NAIAN LIU
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
NILS HANSEN
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
OSAMU FUJITA
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
VP - SECT AFFAIRS2$0$0
PERRINE PEPIOT
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
ROBERT F SAWYER
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
ROGER CRACKNELL
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
RUUD EGGELS
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
SANJAI CORREA
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
TERESE LOVAS
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
TIMOTHY LIEUWEN
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
WILLIAM ROBERTS
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
YIGUANG JU
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
ZHENG CHEN
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
ANDREAS DRIZLER
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
SECRETARY2$0$0
ZUOHUA HUANG
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
TERUYUKI OKAZAKI
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
DANIEL J SEERY
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
CHARLES K WESTBROOK
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
990-PF for the year ended June 30, 2023: 36 people
NameTitleHours / weekCompensationOther / benefits
MS RENEE TASSARI
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
EXECUTIVE ADMINISTRA50$110,117$11,012
DAVID SHARBAUGH
5001 BAUM BOULEVARD SUITE 644, PITTSBURGH, PA 15213
COMMITTEE AND EVENTS
Highest-paid employee
40$59,173$5,917
BRYAN S HAYNES
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
CHUNG KING LAW
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
DEREK DUNN-RANKIN
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
TREASURER2$0$0
DR PHILIPPE DAGAUT
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
PRESIDENT2$0$0
EPANIMONDAS MASTORAKOS
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
FEI QI
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
SECRETARY SECTIONAL AFFAIRS2$0$0
FREDERIQUE BATTEN-LECLERC
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
HAI WANG
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
VICE PRESIDENT2$0$0
HAIPING YANG
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
HENRY CURRAN
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
JAMES DRISCOLL
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
KANG YUL HUH
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
KAORU MARUTA
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
KATHARINA KOHSE-HOINGHAUS
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
LI QIAO
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
MARA DE JOANNON
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
NAIAN LIU
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
NILS HANSEN
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
OSAMU FUJITA
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
VP - SECT AFFAIRS2$0$0
PERRINE PEPIOT
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
ROBERT F SAWYER
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
ROGER CRACKNELL
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
RUUD EGGELS
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
SANJAI CORREA
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
TERESE LOVAS
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
TIMOTHY LIEUWEN
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
WILLIAM ROBERTS
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
YIGUANG JU
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
ZHENG CHEN
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
ANDREAS DRIZLER
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
SECRETARY2$0$0
ZUOHUA HUANG
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
TERUYUKI OKAZAKI
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
DANIEL J SEERY
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0
CHARLES K WESTBROOK
5001 BAUM BOULEVARD, PITTSBURGH, PA 15213
DIRECTOR2$0$0

Address and contacts

Address (IRS master file)
5001 BAUM BLVD STE 644, PITTSBURGH, PA 15213-1851
Signed the 990-PF
DEREK DUNN-RANKIN, TREASURER
Phone
(412) 687-1366
Return prepared by
LOUIS PLUNG & COMPANY LLP

What it must file and when

IRS records say it files Form 990-PF. Private foundations file every year. 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-PF on file
2023June 30, 2024November 15, 2024990-PF on file

IRS record

EIN
25-1027211
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Private non-operating foundation
Donations deductible (Pub 78)
Private foundation, 30% limit
Exempt since
2023
Accounting year ends
June
Files
Form 990-PF
Assets (IRS master file)
$8,881,221
Income (IRS master file)
$3,466,528

Revocation and reinstatement

Exemption revoked
November 15, 2021
Posted by the IRS
July 13, 2022
Reinstated
Effective November 15, 2021

From the IRS automatic revocation list: organizations that did not file a required return or e-Postcard for three consecutive years.

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-PFJune 2025$2,517,882$2,215,567$8,881,221IRS
990-PFJune 2024$1,355,970$919,439$8,902,340XML
990-PFJune 2023$2,056,717$1,633,303$7,528,821XML

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 25-1027211).

Questions about COMBUSTION INSTITUTE

What is the EIN of COMBUSTION INSTITUTE?
The employer identification number (EIN) of COMBUSTION INSTITUTE is 25-1027211.
Is COMBUSTION INSTITUTE tax-exempt?
Yes. The IRS revoked its exemption on November 15, 2021 and reinstated it effective November 15, 2021.
Are donations to COMBUSTION INSTITUTE tax-deductible?
Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
Which annual return does COMBUSTION INSTITUTE file?
Form 990-PF. Private foundations file every year.
When is the next return of COMBUSTION INSTITUTE 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 COMBUSTION INSTITUTE last file with the IRS?
The latest return in the IRS public files is the 990-PF for the year ended June 2025.
Who are the officers and directors of COMBUSTION INSTITUTE?
The 990-PF for the year ended June 30, 2025 lists 40 people; 5 received compensation from the organization, the highest $123,894 (RENNE TASSARI, EXECUTIVE ADMINISTRA).
How much revenue does COMBUSTION INSTITUTE have?
On its 990-PF for the year ended June 30, 2025 it reported revenue of $2,517,882, expenses of $2,215,567 and total assets of $8,881,221 at year end.

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