INTERENVIRONMENT INSTITUTE
Cite this
Plain text INTERENVIRONMENT INSTITUTE. Strategy Studio, nonprofit organization profile, tax years 2011–2013. https://strategystudio.org/org/237010015. Retrieved 2026-10-20.
APA Strategy Studio. (n.d.). INTERENVIRONMENT INSTITUTE [Nonprofit organization profile; tax years 2011–2013]. Retrieved October 20, 2026, from https://strategystudio.org/org/237010015
MLA “INTERENVIRONMENT INSTITUTE.” Strategy Studio, tax years 2011–2013, https://strategystudio.org/org/237010015. Accessed 20 Oct. 2026.
Retrieved 2026-10-20; covers tax years 2011–2013. Data: Strategy Studio, CC BY 4.0.
2013 · Form 990EZ · revenue $40K · expenses $16K · assets $28K
- EIN
- 23-7010015
- Address
- PO BOX 99, CLAREMONT, CA 91711-0099
- Website
- www.interenvironment.org
- NTEE code
- W20E
- Subsection
- 501(c)(3)
- Ruling year
- 1972
- Cross-check
- ProPublica Nonprofit Explorer
Mission
Educational, Scientific, Literary
Each tax year counts once: when a return was amended, only the latest return for that period is used below (superseded returns stay listed, greyed, under Finances).
People paid by the organization
None of the 3 people listed on these returns reported compensation from the organization. They are listed below.
Officers and directors, no compensation reported
3 people listed on the returns with $0 (or no amount) in every compensation column: current people first. Hours are as filed on the latest return each person appears on.
| Name | Latest title | Years | Hrs/wk (latest) | Compensation | Organizations |
|---|---|---|---|---|---|
| T C Trzyna | President | 2011-2013 | 40 | $0 reported | 1 |
| Lawrence W Stewart | Treasurer | 2011-2013 | 1 | $0 reported | 1 |
| Michael Paparian | Secretary | 2011-2013 | 2 | $0 reported | 1 |
People by year
2013 · 3 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| T C Trzyna | President | 40 | $0 | - | - | $0 | 1 |
| Lawrence W Stewart | Treasurer | 1 | $0 | - | - | $0 | 1 |
| Michael Paparian | Secretary | 2 | $0 | - | - | $0 | 1 |
2012 · 3 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| Michael Paparian | Secretary | 2 | $0 | - | - | $0 | 1 |
| Lawrence W Stewart | Treasurer | 1 | $0 | - | - | $0 | 1 |
| T C Trzyna | President | 40 | $0 | - | - | $0 | 1 |
2011 · 3 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| Michael Paparian | Secretary | 2 | $0 | - | - | $0 | 1 |
| Lawrence W Stewart | Treasurer | 1 | $0 | - | - | $0 | 1 |
| T C Trzyna | President | 40 | $0 | - | - | $0 | 1 |
Highest-paid independent contractors
No independent contractors reported.
Who gave
Contributor names are not public for this form type.
Public charities filing Form 990 or 990-EZ report large donors on Schedule B, but the IRS withholds their names and addresses from public copies. Private foundations (990-PF) are different: their contributors are public.
Finances
Newest first. Each filing: its name on one row, its figures on the row beneath. Greyed filings are superseded by a later return for the same period and are left out everywhere else on this page.
| Revenue | Expenses | Assets | Net assets | Contributions | Program revenue | Officer pay | Employees | Volunteers |
|---|---|---|---|---|---|---|---|---|
| 2013 · Form 990EZ | ||||||||
| $39,990 | $15,567 | $28,205 | $28,205 | $39,990 | - | - | - | - |
| 2012 · Form 990EZ | ||||||||
| $30,012 | $20,799 | $3,782 | $3,782 | $29,980 | $32 | - | - | - |
| 2011 · Form 990EZ | ||||||||
| $22 | $346 | $564 | -$5,431 | - | $22 | - | - | - |
Funders of this organization
Not reported: no grants to this organization appear in the filings we have (tax years 2010 to 2025).
Similar organizations
Ranked without any AI: same NTEE code first, then the same NTEE group; then revenue within 2x, 5x or 10x; then the same state; then similar name and mission text. Same state only · More (100)
| Organization | State | NTEE | Latest revenue | Latest expenses | Top-paid title | Top pay | Why similar |
|---|---|---|---|---|---|---|---|
| ASSEMBLY INTERNATIONAL REALTIONS FOUNDATION | CA | W20 | $40,000 | $24,217 | Chair-Director | $0 | Same NTEE code W20, revenue within 2x, same state |
| KERN CITIZENS FOR SUSTAINABLE GOVERNMENT | CA | W20 | $72,630 | $63,716 | EXECUTIVE DI | $26,044 | Same NTEE code W20, revenue within 2x, same state |
| KERN ISLAND | CA | W20 | $35,000 | $12,780 | President / Director | $0 | Same NTEE code W20, revenue within 2x, same state |
| CHILD ABUSE PREVENTION CENTER POLITICAL ACTION COMMITTEE | CA | W20 | $27,800 | $65 | CHAIRPERSON | $0 | Same NTEE code W20, revenue within 2x, same state |
| KERN COUNTY MANAGEMENT COUNCIL | CA | W20 | $51,248 | $52,583 | Treasurer | $0 | Same NTEE code W20, revenue within 2x, same state |
| SAN MATEO RAIL CORRIDOR TRANSPORTATION MANAGEMENT ASSOCIAT | CA | W20 | $52,153 | $45,847 | President | $0 | Same NTEE code W20, revenue within 2x, same state |
| POWERMENTOR | CA | W20 | $63,552 | $64,655 | President/CEO | $0 | Same NTEE code W20, revenue within 2x, same state |
| RETIRED EMPLOYEES OF MERCED COUNTY ASSOCIATION INC | CA | W20 | $52,028 | $30,489 | PRESIDENT | $0 | Same NTEE code W20, revenue within 2x, same state |
| SANTA FE SPRINGS COMMUNITY PROGRAMS INC | CA | W20 | $35,664 | $30,499 | CHIEF FINANCIAL OFFICER | $0 | Same NTEE code W20, revenue within 2x, same state |
| CANYON STORE TRUST | CA | W20 | $47,145 | $11,726 | Vice President | $0 | Same NTEE code W20, revenue within 2x, same state |
| INSTITUTE OF LOCAL GOVERNMENT | ND | W20 | $24,706 | $28,635 | President | $0 | Same NTEE code W20, revenue within 2x |
| GOVERNANCE INSTITUTE INC | MA | W20 | $40,000 | $1,063 | PRESIDENT | $0 | Same NTEE code W20, revenue within 2x |
| FLORIDA LOCAL ENVIRONMENTAL RESOURCE AGENCIES INC | FL | W20 | $65,976 | $87,358 | EXECUTIVE DIRECTOR | $60,000 | Same NTEE code W20, revenue within 2x |
| BEAVER COUNTY REGIONAL COUNCIL OF GOVERNMENTS | PA | W20 | $46,040 | $47,712 | Executive Director | $0 | Same NTEE code W20, revenue within 2x |
| MICHIGAN CAMPAIGN FINANCE NETWORK | MI | W20 | $64,738 | $90,934 | EXECUTIVE DIRECTOR | $59,438 | Same NTEE code W20, revenue within 2x |
| FRY HEALTHCARE FOUNDATION | ID | W20 | $68,359 | $68,661 | PRESIDENT | $0 | Same NTEE code W20, revenue within 2x |
| INTERTRIBAL TAX ALLIANCE INC | OR | W20 | $58,445 | $81,321 | Chair | $0 | Same NTEE code W20, revenue within 2x |
| ALABAMA HOUSE REPUBLICAN CONFERENCE INC | AL | W20 | $75,724 | $109,975 | DIRECTOR | $0 | Same NTEE code W20, revenue within 2x |
| NORTH CAROLINA OPEN GOVERNMENT COALITION INC | NC | W20 | $30,993 | $30,023 | EXECUTIVE DIRECTOR | $0 | Same NTEE code W20, revenue within 2x |
| VICTORIA COUNTY VOLUNTEER FIRE DEPARTMENT | TX | W20 | $29,816 | $51,255 | PRESIDENT | $0 | Same NTEE code W20, revenue within 2x |
| FLORIDA TECHNOLOGY FOUNDATION INC | FL | W20 | $56,465 | $59,088 | EXECUTIVE DI | $50,000 | Same NTEE code W20, revenue within 2x |
| TWO HARBORS DEVELOPMENT FUND INC | MN | W20 | $32,424 | $8,413 | VICE PRESIDE | $0 | Same NTEE code W20, revenue within 2x |
| IDEASPACE PROJECT INC | OH | W20 | $35,100 | $42,200 | PRESIDENT | $0 | Same NTEE code W20, revenue within 2x |
| BURLESON POLICE OFFICERS ASSOCIATION | TX | W20 | $43,590 | $35,445 | Vice President | $0 | Same NTEE code W20, revenue within 2x |
| INFORMUP | PA | W20 | $49,422 | $27,181 | DIRECTOR BEGINNING OCT. 2025 | $0 | Same NTEE code W20, revenue within 2x |
Who funds organizations like this
Grantors that funded the 100 most similar organizations. Ranked by total given to them. Foundations (990-PF) and donor-advised fund sponsors only. Same matching as Funders above (by EIN, or by name for foundations).
The full list · all similar organizations
Where the money went
Every expense line on each return, biggest first: Form 990 Part IX (with its program, management and fundraising columns), 990-EZ Part I, or 990-PF Part I. Event marks lines the organization itself describes as events. “Events” in each summary adds those lines, conferences and meetings, and the direct costs of fundraising events. Unusual is not the same as improper. Many of these patterns have ordinary explanations. Check the filing.
2013 · Form 990EZ · $15,567 spent · pay $0 · grants $0 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Other expenses (detail on Schedule O) | $11,643 | 74.8% | |
| Fees to independent contractors | $3,290 | 21.1% | |
| Printing, publications, postage | $634 | 4.1% | |
| Total | $15,567 | 100% |
2012 · Form 990EZ · $20,799 spent · pay $0 · grants $0 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Other expenses (detail on Schedule O) | $20,145 | 96.9% | |
| Printing, publications, postage | $434 | 2.1% | |
| Fees to independent contractors | $220 | 1.1% | |
| Total | $20,799 | 100% |
2011 · Form 990EZ · $346 spent · pay $0 · grants $0 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Other expenses (detail on Schedule O) | $196 | 56.6% | |
| Fees to independent contractors | $150 | 43.4% | |
| Total | $346 | 100% |