Nonprofit · EIN 20-4659308
STOCKHOLM ENVIRONMENT INSTITUTE USINC
Tax-exempt · SOMERVILLE, MA 02144
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $5,634,166 | $6,081,763 | -$447,597 | $4,434,296 | $1,434,038 | $3,000,258 |
| December 31, 2024 | 990 | $5,559,480 | $6,268,381 | -$708,901 | $4,774,586 | $1,497,190 | $3,277,396 |
| December 31, 2023 | 990 | $7,139,766 | $6,561,878 | $577,888 | $5,641,661 | $1,649,158 | $3,992,503 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $1,585,539
- of which government grants
- $125,335
- Program service revenue
- $3,887,254
- Investment income
- $122,753
- Net rental income
- $26,175
- Other revenue
- $38,620
Expenses
- Grants and similar amounts paid
- $0
- Compensation of officers, directors and key employees
- $817,645
- Other salaries and wages
- $3,005,965
- Salaries, compensation and benefits (total)
- $4,690,641
- Professional fundraising fees
- $37,000
- Legal fees
- $19,793
- Accounting fees
- $37,000
- Occupancy
- $166,918
- Travel
- $231,286
- Program services (functional)
- $4,734,353
- Management and general (functional)
- $928,906
- Fundraising (functional)
- $418,504
Balance sheet and other
- Total assets, start of year
- $4,774,586
- Total assets, end of year
- $4,434,296
- Total liabilities, end of year
- $1,434,038
- Net assets, end of year
- $3,000,258
- Net assets without donor restrictions
- $2,870,203
- Net assets with donor restrictions
- $130,055
- Gross receipts
- $5,634,166
- Employees
- 47
- Volunteers
- 0
- Year formed
- 2006
- State of legal domicile
- MA
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 December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| EDWARD CARR | PRESIDENT & CENTER DIR. Officer | 40 | $236,284 | $11,599 |
| CHARLES HEAPS | SENIOR SCIENTIST Key employee | 40 | $204,509 | $25,021 |
| JASON VEYSEY | SENIOR SCIENTIST Highest-paid employee | 40 | $170,090 | $32,251 |
| JOHN SIEBER | CLERK & SENIOR SCIENTIST Officer | 40 | $179,253 | $8,551 |
| ROBERT BAILIS | SENIOR SCIENTIST Highest-paid employee | 40 | $154,263 | $31,453 |
| CHARLES YOUNG | SENIOR SCIENTIST Highest-paid employee | 40 | $150,790 | $30,217 |
| BONNIE COCKMAN | TREASURER & DIR. OF FINANCE/OPS Officer | 40 | $171,213 | $8,303 |
| HENDRIK BROEKHOFF | SENIOR SCIENTIST Highest-paid employee | 40 | $161,824 | $8,085 |
| LAURA FORNI | WATER PROGRAM DIRECTOR Highest-paid employee | 40 | $155,713 | $7,725 |
| MANS NILSSON | CHAIR Trustee or director | 1 | $0 | $0 |
| ERIC KANE | DIRECTOR Trustee or director | 1 | $0 | $0 |
| NIELS CRONE | DIRECTOR Trustee or director | 1 | $0 | $0 |
| ANDREW REVKIN | DIRECTOR Trustee or director | 1 | $0 | $0 |
| RACHEL CLEETUS | DIRECTOR Trustee or director | 1 | $0 | $0 |
| DANIELLE DEANE-RYAN | DIRECTOR Trustee or director | 1 | $0 | $0 |
4 more people on this return
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| ELIZABETH SODERSTROM PHD | DIRECTOR Trustee or director | 1 | $0 |
| NICOLAS DI SBROIAVACCA | FORMER DIRECTOR Trustee or director | 1 | $0 |
| LINDA ABRIOLA PHD | FORMER DIRECTOR Trustee or director | 1 | $0 |
| EILEEN QUIGLEY | FORMER DIRECTOR Trustee or director | 1 | $0 |
990 for the year ended December 31, 2024: 17 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| CHARLES HEAPS | SENIOR SCIENTIST Key employee | 40 | $197,443 | $25,036 |
| EDWARD CARR | PRESIDENT & CENTER DIRECTOR Officer | 40 | $185,452 | $16,946 |
| JOHN SIEBER | CLERK & SENIOR SCIENTIST Officer | 40 | $176,026 | $17,465 |
| BONNIE COCKMAN | TREASURER & DIRECTOR OF FINANCE AND OPERATIONS Officer | 40 | $166,671 | $13,009 |
| ROBERT BAILIS | SENIOR SCIENTIST Highest-paid employee | 40 | $150,944 | $28,512 |
| SIVAN KARTHA | EQUITABLE TRANSITIONS RESEARCH DIRECTOR Highest-paid employee | 40 | $148,816 | $28,445 |
| CHARLES YOUNG | SENIOR SCIENTIST Highest-paid employee | 40 | $140,207 | $25,993 |
| HENDRIK BROEKHOTT | SENIOR SCIENTIST Key employee | 40 | $158,007 | $7,893 |
| KATHERINE SNYDER | SENIOR SCIENTIST Highest-paid employee | 40 | $129,359 | $24,836 |
| BRIAN JOYCE | SENIOR SCIENTIST Highest-paid employee | 40 | $140,878 | $12,033 |
| RACHEL CLEETUS | DIRECTOR Trustee or director | 1 | $0 | $0 |
| SUSAN JULIUS | FORMER DIRECTOR Trustee or director | 1 | $0 | $0 |
| ELIZABETH SODERSTROM PHD | DIRECTOR Trustee or director | 1 | $0 | $0 |
| LINDA ABRIOLA PHD | DIRECTOR Trustee or director | 1 | $0 | $0 |
| MANS NILSSON | CHAIR Trustee or director | 1 | $0 | $0 |
| EILEEN QUIGLEY | DIRECTOR Trustee or director | 1 | $0 | $0 |
| NICOLAS DI SBROIAVACCA | DIRECTOR Trustee or director | 1 | $0 | $0 |
990 for the year ended December 31, 2023: 18 people
| Name | Title | Hours / week | Compensation | Other / benefits |
|---|---|---|---|---|
| CHARLES HEAPS | SR SCIENTIST Key employee | 40 | $168,806 | $32,941 |
| ANNETTE HUBER-LEE | SR SCIENTIST Key employee | 40 | $168,600 | $25,994 |
| JASON VEYSEY | SR SCIENTIST Highest-paid employee | 40 | $147,891 | $35,039 |
| SIVAN KARTHA | SR SCIENTIST Highest-paid employee | 40 | $140,126 | $35,657 |
| JOHN SIEBER | CLERK/SR SCIENTIST Officer | 40 | $165,960 | $7,880 |
| ROB BAILIS | SR SCIENTIST Highest-paid employee | 40 | $142,965 | $30,686 |
| CHARLES YOUNG | SR SCIENTIST Key employee | 40 | $161,110 | $7,359 |
| BONNIE COCKMAN | TREASURER, DIR. OF FINANCE Officer | 38 | $157,631 | $7,667 |
| KATHERINE SNYDER | SR SCIENTIST Highest-paid employee | 40 | $134,538 | $30,458 |
| MICHAEL LAZARUS | PRESIDENT/SR SCIENTIST/CENTER DIRECTOR Officer | 32 | $155,812 | $7,777 |
| MARIA ESCOBAR ARIAS | SR SCIENTIST & PROGRAM DIRECTOR Highest-paid employee | 40 | $139,051 | $20,397 |
| SUSAN JULIUS | DIRECTOR Trustee or director | 1 | $0 | $0 |
| NICOLAS DI SBROIAVACCA | DIRECTOR Trustee or director | 1 | $0 | $0 |
| RACHEL CLEETUS | DIRECTOR Trustee or director | 1 | $0 | $0 |
| LINDA ABRIOLA PHD | DIRECTOR Trustee or director | 1 | $0 | $0 |
| MANS NILSSON | CHAIR Trustee or director | 1 | $0 | $0 |
| ELIZABETH SODERSTROM PHD | DIRECTOR Trustee or director | 1 | $0 | $0 |
| EILEEN QUIGLEY | DIRECTOR Trustee or director | 1 | $0 | $0 |
Address and contacts
- Address (IRS master file)
- 11 CURTIS AVE, SOMERVILLE, MA 02144-1224
- In care of
- % CHRISTOPHER H SWARTZ PHD
- Principal officer (990 for 2025)
- BONNIE COCKMAN, 11 CURTIS AVENUE, SOMERVILLE, MA 02144
- Signed the 990
- BONNIE COCKMAN, TREASURER, DIR. OF FINANCE/OPS
- Phone
- (617) 627-3786
- Return prepared by
- SMITH SULLIVAN & BROWN PC
Mission
AN INTERNATIONAL NONPROFIT RESEARCH AND POLICY ORGANIZATION THAT TACKLES ENVIRONMENT AND DEVELOPMENT CHALLENGES.
Program accomplishments
- SEI US HAS OFFICES IN SOMERVILLE, MASSACHUSETTS; DAVIS, CALIFORNIA; AND SEATTLE, WASHINGTON. THE CENTER CONDUCTS RESEARCH AND ENGAGES WITH DECISION-MAKERS AND CIVIL SOCIETY ON ENERGY, WATER, AND CLIMATE POLICY AS WELL AS ON BROADER DIMENSIONS OF DEVELOPMENT, SUSTAINABILITY, AND EQUITY. IT BUILDS CAPACITY THROUGH TRAINING AND COLLABORATION, AND ITS DECISION-SUPPORT TOOLS ARE USED WIDELY AROUND THE GLOBE.SEI US SUPPORTS DECISION-MAKING AND INDUCING CHANGE TOWARD SUSTAINABLE DEVELOPMENT AROUND THE WORLD BY PROVIDING KNOWLEDGE THAT BRIDGES SCIENCE AND POLICY IN THE FIELDS OF ENVIRONMENT AND DEVELOPMENT, AND BY CONDUCTING INNOVATIVE, INTEGRATED APPLIED SYSTEMS RESEARCH, WHICH FORMS THE BASIS FOR POLICY ADVICE, CAPACITY BUILDING, DECISION SUPPORT AND POLICY IMPLEMENTATION.Expenses $4,734,353 · revenue $3,887,254
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 December, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | 990 on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990 on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990 on file |
IRS record
- EIN
- 20-4659308
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (509(a)(2))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 2007
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Science and technology (U050)
- Assets (IRS master file)
- $4,434,296
- Income (IRS master file)
- $5,634,166
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $5,634,166 | $6,081,763 | $4,434,296 | XML |
| 990 | December 2024 | $5,559,480 | $6,268,381 | $4,774,586 | XML |
| 990 | December 2023 | $7,139,766 | $6,561,878 | $5,641,661 | XML |
| 990 | December 2022 | $5,886,222 | $6,119,162 | $5,603,170 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | IRS |
| 990 | December 2018 | – | – | – | IRS |
| 990 | December 2017 | – | – | – | 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 20-4659308).
Questions about STOCKHOLM ENVIRONMENT INSTITUTE USINC
- What is the EIN of STOCKHOLM ENVIRONMENT INSTITUTE USINC?
- The employer identification number (EIN) of STOCKHOLM ENVIRONMENT INSTITUTE USINC is 20-4659308.
- Is STOCKHOLM ENVIRONMENT INSTITUTE USINC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2007.
- Are donations to STOCKHOLM ENVIRONMENT INSTITUTE USINC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does STOCKHOLM ENVIRONMENT INSTITUTE USINC 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 STOCKHOLM ENVIRONMENT INSTITUTE USINC due?
- The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did STOCKHOLM ENVIRONMENT INSTITUTE USINC last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended December 2025.
- Who is the principal officer of STOCKHOLM ENVIRONMENT INSTITUTE USINC?
- The 990 for the year ended December 31, 2025 names BONNIE COCKMAN.
- Who are the officers and directors of STOCKHOLM ENVIRONMENT INSTITUTE USINC?
- The 990 for the year ended December 31, 2025 lists 19 people; 9 received compensation from the organization, the highest $236,284 (EDWARD CARR, PRESIDENT & CENTER DIR.).
- How much revenue does STOCKHOLM ENVIRONMENT INSTITUTE USINC have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $5,634,166, expenses of $6,081,763 and total assets of $4,434,296 at year end.
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