Peninsula Open Space Trust
Donations deductiblePeninsula Open Space Trust's network
16 people15 organisationsi16 people and 15 organisations on this map.The large node is the subject of this page. Solid lines are what the register itself records (16). Violet dotted lines (15) are likely: the same full name sits on the current board of another organisation in the same register and region. Form 990 filings give names without a person identifier; SEC insider filings carry a CIK. It may be a different person.The board
16 listediTime on the board is observed from the annual filings: the IRS files no appointment date, so the bar counts years from the first filing the person appears on - a lower bound, not a filed start date. Names are exactly as filed. The IRS publishes no person identifier, so this edition does not yet link a person across organisations in the tables. The network map shows same-name matches as likely links only, never as confirmed.Time served and departures are observed across annual filings. Observed time served is a lower bound - a member may have joined before the first year on record. The organisation reported 16 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.| Name | Role as filed | Since | On the board |
|---|---|---|---|
| Rajesh Mashruwala Chair | Chair & Director | 2020 | 6 yrs |
| Alisa Macavoy | Director | 2020 | 6 yrs |
| Andrew Bosworth | Director | 2019 | 7 yrs |
| Dennis Debroeck | Director | 2019 | 7 yrs |
| Emerick Woods | Director | 2019 | 7 yrs |
| Jennifer Lynch (also filed as Jen Lynch) | Director | 2019 | 7 yrs |
| Kalle Dahl | Director | 2023 | 3 yrs |
| Katherine Tsai | Director | 2023 | 3 yrs |
| Ken Yeager | Director | 2020 | 6 yrs |
| Nanhi Singh | Director | 2023 | 3 yrs |
| Paul Simpson | Director | 2023 | 3 yrs |
| Rod Ferguson | Director | 2019 | 7 yrs |
| Sanjay Vaswani | Director | 2019 | 7 yrs |
| Sean Dempsey | Director | 2019 | 7 yrs |
| Suzanne Sullivan | Director | 2019 | 7 yrs |
| Wende Hutton | Vice Chair & Director | 2019 | 7 yrs |
Officers and senior leadership
17 listediNamed in Part VII as officers, key employees or highest-compensated staff - not board members, shown for completeness.| Name | Title as filed | On the filings |
|---|---|---|
| Brad O'Brien | Company secretary | since 2020 |
| Curtis Riffle | VP Land Stewardship | since 2019 |
| Daniel Olstein | Director of Land Stewardship | since 2019 |
| Diane Cordova | Chief Talent Officer | since 2019 |
| Gordon Clark | VP of Development | since 2019 |
| Heather Kantor | Treasurer & CFO (To July '18) | 2019 |
| Jeanine Crider | Director of Planned Giving | since 2019 |
| Jennifer Koepcke | Director of Institutional Engagement | since 2019 |
| Justin Eliot | Director of Finance | since 2020 |
| Karie Thomson | Company secretary | 2019 |
| Mark Stevens | Treasurer & CFO/COO | since 2019 |
| Martha Tedesco | VP of Marketing | since 2019 |
| Noelle Chambers | VP of Conservation (Since July 2020) | since 2021 |
| Noelle Thurlow | Sr. Director of Land Programs & Transactions | since 2019 |
| Olivia White Lopez | Director of Diversity Equity and Inclusion | since 2023 |
| Patrick Marshall | Sr. Project & Legal Affairs Manager | since 2021 |
| Walter T Moore | President | since 2019 |
Pay and hours
year to 30 June 2025iFrom Part VII of the Form 990: compensation reported for each officer, director, trustee, key employee and highest-paid staff member, and the average hours a week they report. Most board members are unpaid; a blank means nothing was reported. Pay from related organisations is shown separately.| Name | Title as filed | Hours a week | Pay from the organisation | Related organisations | Other |
|---|---|---|---|---|---|
| Walter T Moore | President | 40 | $395k | $75k | |
| Mark Stevens | Treasurer & CFO/COO | 40 | $306k | $67k | |
| Gordon Clark | Vice President of Development | 40 | $286k | $49k | |
| Noelle Chambers | Vice President of Conservation | 40 | $268k | $41k | |
| Martha Tedesco | Chief Marketing Officer (Through Sept) | 40 | $254k | $55k | |
| Diane Cordova | Chief Talent Officer | 40 | $234k | $65k | |
| Justin Eliot | Director of Finance | 40 | $217k | $18k | |
| Patrick Marshall | General Counsel | 40 | $208k | $34k | |
| Olivia White Lopez | Director of Culture, Equity & Belonging | 40 | $186k | $26k | |
| Jeanine Crider | Director of Planned Giving | 40 | $181k | $44k | |
| Alisa Macavoy | Director | 5 | $0 | ||
| Andrew Bosworth | Director | 1 | $0 | ||
| Dennis Debroeck | Director | 3 | $0 | ||
| Emerick Woods | Director | 3 | $0 | ||
| Jana Barsten | Director | 2 | $0 | ||
| Jennifer Lynch | Director | 3 | $0 | ||
| Kalle Dahl | Director | 2 | $0 | ||
| Katherine Tsai | Director | 2 | $0 | ||
| Ken Yeager | Director | 3 | $0 | ||
| Nanhi Singh | Director | 2 | $0 | ||
| Paul Simpson | Director | 3 | $0 | ||
| Rajesh Mashruwala | Chair & Director | 4 | $0 | ||
| Rod Ferguson | Director | 3 | $0 | ||
| Sanjay Vaswani | Director | 2 | $0 | ||
| Sean Dempsey | Director | 3 | $0 | ||
| Suzanne Sullivan | Director | 4 | $0 | ||
| Wende Hutton | Vice Chair & Director | 5 | $0 | ||
| Brad O'brien | Secretary | 3 | $0 |
Colorado roster
24 listediOfficers, directors and trustees from the latest filing with the Colorado Secretary of State (document 20263014049). Titles are as filed; some entries are registered agents or custodians of records rather than board members. Source: data.colorado.gov, public domain.| Name | Title as filed |
|---|---|
| Paul Simpson | Director |
| Suzanne Sullivan | Director |
| Kalle Dahl | Director |
| Benjamin Wright | Vice President of Land Transactions |
| Gordon Clark | President |
| Jane Machin | |
| Irian Kogan | Vice President of Conservation |
| Diane Cordova | Chief Talent Officer |
| Ben Huang | Chief Marketing Officer |
| Rajesh Mashruwala | Director |
| Jane Machin | Treasurer/CFO |
| Brad Obrien | Secretary |
| Anne Holmes | VP of Development |
| Wende Hutton | Chair |
| Katherine Tsai | Director |
| Emerick Woods | Director |
| Sanjay Vaswani | Director |
| Nanhi Singh | Director |
| Cynthia Brandt | Director |
| Ken Yeager | Director |
| Erin McDermitt | Chief People Officer |
| Jana Barsten | Director |
| Jennifer Lynch | Vice Chair |
| Alisa Macavoy | Director |
About
- Legal name
- Peninsula Open Space Trust
- EIN
- 942392007
- Address
- 222 High St, Palo Alto, CA, 94301-1040
- State
- California
- Mission
- Post protects open space on the peninsula and in the south bay for the benefit of all. Post is creating a network of protected lands where people and nature connect and thrive. These lands are preserved forever so present and future generations benefit from the careful... Balance of rural and urban landscapes that make our region extraordinary. (as filed on the Form 990)
- Activity (NTEE)
- C500 Environment
- IRS classification
- 501(c)03 (tax-exempt under section 501(c)(3) where shown)
- Classified purpose
- Environment
- Size band
- 9 (IRS master file code)
- Formed
- 1977
- Principal officer
- Gordon Clark (as named on the Form 990)
- IRS ruling date
- 1 April 1977
- Status
- Code 01 (unconditional exemption)
- Form 990 filings on record
- 6, latest 2024
- IRS Publication 78
- PC (contributions deductible)
Most connected
Related organisations (Schedule R)
Longest observed on the filings
≥7years on the filingsAndrew Bosworth
≥7years on the filingsDennis Debroeck
≥7years on the filingsEmerick Woods
≥7years on the filingsJennifer Lynch
Latest return
year to 30 June 2025iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 30 June 2025. US dollars, as filed.- Total assets
- $373.8m
- Total liabilities
- $14.4m
- Net assets or fund balances
- $359.3m
- Contributions and grants received
- $54.8m
- Program service revenue
- $250k
- Grants and similar paid out
- $9.2m
- Employees
- 79
- Volunteers
- 277
Filed finances
1 yeariTotals as filed on the IRS Form 990 (revenue and expenses), by tax year.| Tax year | Total revenue | Total expenses | Surplus or deficit |
|---|---|---|---|
| 2023 | $30.3m | $33.9m | Deficit $3.6m |
As filed on the IRS Form 990. US dollars.
Grants paid
25+ listediFrom Schedule I of the Form 990: grants and assistance to organisations in the United States, largest first (up to 25). Schedule I is filed only by organisations that gave more than $5,000 to any one recipient.| Recipient | Purpose | Amount |
|---|---|---|
| County of San Mateo Parks Department | Support for construction at tunitas creek beach | $5.3m |
| The Conservation Fund | Support for san antonio ranch project in san benito county | $500k |
| Climate Resilient Communities | Support for general operations | $185k |
| Santa Clara Valley Open Space Authority | Support for agency's work in coyote valley | $100k |
| San Mateo Resource Conservation District | Support for santa cruz mountains stewardship network,event sponsorship and general operations | $80k |
| Green Foothills | Event sponsorship and support for work in coyote valley and juristac | $60k |
| Amah Mutsun Land Trust | Support for general operations | $50k |
| Together Bay Area | Event sponsorship and support for conservation land network 3.0 project and general operations | $35k |
| Santa Clara Valley Habitat Agency | Support for the climate resilience credits program | $25k |
| California Council of Land Trusts | Event sponsorship | $25k |
| University of California Davis | Surrport for santa clara valley agriculture outreach & awareness campaign | $15k |
| Muwekma Ohlone Preservation Foundation the | Support for general operations | $14k |
| Saved By Nature | Support for general operations and sponsorship of community nature hikes | $13k |
| Canopy | Support for general operations | $11k |
| Epacenter | Support for general operations | $10k |
| Nuestra Casa de East Palo Alto | Support for general operations | $10k |
| Kitchen Table Advisors | Event sponsorship | $10k |
| Sempervirens Fund the | Event sponsorship | $10k |
| Puente de la Costa Sur | Support for the coastside gives campaign | $10k |
| Coastal Quest | Unrestricted contribution for arriba south coast | $10k |
| Resource Conservation District of Monterey County | Support for central coast prescribed burn association | $8k |
| San Benito Agricultural Land Trust | Support for general operations | $8k |
| San Benito County Resource Conservation District | Support for general operations | $8k |
| Pescadero Education Foundation | Support for general operations | $6k |
| Coastside Land Trust | For inclusion in the open space lands managed by coastside land trust | $0 |
State registration
1 entityiBusiness-entity registers published by US states. These records are matched to this organisation by name and state, not by EIN, and are labelled as likely matches. Street addresses are not shown.Peninsula Open Space Trust likely matchiMatched by exact name and state (and ZIP where shown). State registers do not publish EINs, so this is not a confirmed match. Source: Colorado Secretary of State (CDOS), business entities (data.colorado.gov 4ykn-tg5h). Licence: public domain. Data last fetched 18 October 2026.
- State
- Colorado
- Entity type
- nonprofit corporation
- Status
- Good Standing
- Formed
- 27 February 2026
- Registered agent
- URS Agents, LLC. (city and state not held)
This register does not publish officers or directors.