Nonprofit · EIN 27-3708711
INTERNATIONAL CENTER FOR INTEGRATIVE SYSTEMS INC
Tax-exempt · CAMBRIDGE, MA 02138
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $167,473 | $48,771 | $118,702 | $324,689 | $45,869 | $278,820 |
| December 31, 2024 | 990 | $77,849 | $77,234 | $615 | $160,118 | $0 | $160,118 |
| December 31, 2023 | 990 | $32,992 | $5,747 | $27,245 | $160,253 | $750 | $159,503 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $105,627
- Program service revenue
- $57,646
- Investment income
- $5,016
- Net rental income
- -$816
- Other revenue
- -$816
Expenses
- Grants and similar amounts paid
- $0
- Salaries, compensation and benefits (total)
- $0
- Professional fundraising fees
- $0
- Accounting fees
- $750
- Management and general (functional)
- $48,771
Balance sheet and other
- Total assets, start of year
- $160,118
- Total assets, end of year
- $324,689
- Total liabilities, end of year
- $45,869
- Net assets, end of year
- $278,820
- Gross unrelated business income
- $624
- Gross receipts
- $167,473
- Employees
- 0
- Year formed
- 2011
- 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 |
|---|---|---|---|
| SHIVA A AYYADURAI | TREASURER Trustee or director, Officer | 1 | $0 |
| SHIVA AYYADURAI | CLERK Trustee or director | 1 | $0 |
| HEATHER BURDEN | EXECUTIVE DIRECTOR Trustee or director, Officer | 20 | $0 |
| SHIVA AYYADURAI | DIRECTOR Trustee or director | 1 | $0 |
| HAUKE KITE-POWELL | DIRECTOR Trustee or director, Key employee | 1 | $0 |
| SHIVA AYYADURAI | PRESIDENT Officer | 30 | $0 |
990 for the year ended December 31, 2024: 6 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| SHIVA AYYADURAI | CLERK Trustee or director | 1 | $0 |
| SHIVA AYYADURAI | DIRECTOR Trustee or director | 1 | $0 |
| HAURE KITE-POWELL | DIRECTOR Trustee or director, Key employee | 1 | $0 |
| SHIVA A AYYADURAI | TREASURER Trustee or director, Officer | 1 | $0 |
| HEATHER BURDEN | EXECUTIVE DIRECTOR Trustee or director, Officer | 20 | $0 |
| SHIVA AYYADURAI | PRESIDENT Officer | 30 | $0 |
990 for the year ended December 31, 2023: 6 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| SHIVA AYYADURAI | DIRECTOR Trustee or director | 1 | $0 |
| HAURE KITE-POWELL | DIRECTOR Trustee or director, Key employee | 1 | $0 |
| SHIVA AYYADURAI | CLERK Trustee or director | 1 | $0 |
| SHIVA A AYYADURAI | TREASURER Trustee or director, Officer | 1 | $0 |
| MICHELLE JEFFALONE | EXECUTIVE DIRECTOR Trustee or director, Officer | 20 | $0 |
| SHIVA AYYADURAI | PRESIDENT Officer | 30 | $0 |
Address and contacts
- Address (IRS master file)
- 701 CONCORD AVE, CAMBRIDGE, MA 02138-1050
- In care of
- % SHIVA AYYADURAI
- Mailing address (990-N for 2011)
- 701 Concord Ave, Cambridge MA 02138
- Principal officer (990 for 2025)
- SHIVA AYYADURAI, 701 CONCORD AVE, CAMBRIDGE, MA 02138
- Principal officer (990-N for 2011)
- Shiva Ayyadurai, 701 Concord Ave, Cambridge MA 02138
- Signed the 990
- SHIVA AYYADURAI, PRESIDENT
- Website
- www.integrativesystems.org
- Return prepared by
- Lark Bolduc CPA LLC
Mission
NOT-FOR-PROFIT CENTER FOR EDUCATIONAL AND RESEARCH PURPOSES
Program accomplishments
- THE ORGANIZATION IS A CENTER FOR PIONEERING SCIENTIFIC RESEARCH FOR DEVELOPING NEW METHODOLOGIES FOR INTEGRATING, UNDERSTANDING AND VISUALIZING LARGE SCALE COMPLEX SYSTEMS SUCH AS MEDIA AND TELECOMMUNICATION INFRASTRUCTURE, HEALTHCARE, BUSINESS, TRANSPORTATION SYSTEMS AND INNOVATION AND GOVERNANCE SYSTEMS.
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
- 27-3708711
- 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
- 2011
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Voluntary health associations and medical disciplines (G05)
- Assets (IRS master file)
- $324,689
- Income (IRS master file)
- $167,473
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $167,473 | $48,771 | $324,689 | IRS |
| 990 | December 2024 | $77,849 | $77,234 | $160,118 | IRS |
| 990 | December 2023 | $32,992 | $5,747 | $160,253 | XML |
| 990 | December 2022 | $47,279 | $39,880 | $170,442 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | IRS |
| 990 | December 2019 | – | – | – | IRS |
| 990 | December 2018 | – | – | – | IRS |
| 990-N for 2011 Officer: Shiva Ayyadurai | December 31, 2011 | ≤ $50,000 receipts | – | – | e-Postcard |
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 27-3708711).
Questions about INTERNATIONAL CENTER FOR INTEGRATIVE SYSTEMS INC
- What is the EIN of INTERNATIONAL CENTER FOR INTEGRATIVE SYSTEMS INC?
- The employer identification number (EIN) of INTERNATIONAL CENTER FOR INTEGRATIVE SYSTEMS INC is 27-3708711.
- Is INTERNATIONAL CENTER FOR INTEGRATIVE SYSTEMS INC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2011.
- Are donations to INTERNATIONAL CENTER FOR INTEGRATIVE SYSTEMS INC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does INTERNATIONAL CENTER FOR INTEGRATIVE SYSTEMS INC 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 INTERNATIONAL CENTER FOR INTEGRATIVE SYSTEMS INC 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 INTERNATIONAL CENTER FOR INTEGRATIVE SYSTEMS INC 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 INTERNATIONAL CENTER FOR INTEGRATIVE SYSTEMS INC?
- The 990 for the year ended December 31, 2025 names SHIVA AYYADURAI.
- Who are the officers and directors of INTERNATIONAL CENTER FOR INTEGRATIVE SYSTEMS INC?
- The 990 for the year ended December 31, 2025 lists 6 people; 0 received compensation from the organization.
- How much revenue does INTERNATIONAL CENTER FOR INTEGRATIVE SYSTEMS INC have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $167,473, expenses of $48,771 and total assets of $324,689 at year end.
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