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.

501(c)(3) charity; gifts are tax-deductible.
76¢ of each $1 spent went to programs.
$2.3M paid to officers and key staff.
Mission: Form 990 Part I, line 1 · Status: IRS Pub. 78 · Programs: Part IX · Pay: Part VII

Before you give

FY2021 · Form 990Independent: from IRS data, not the org
Download 990
IRS status
501(c)(3)
not on the IRS revocation list
Looks good: listed by the IRS and not on the revocation list.
IRS BMF · Auto-Revocation List
Tax-deductible gifts
Yes
Donations are tax-deductible
Looks good: the IRS lists gifts to it as deductible.
IRS Pub. 78 · IRS BMF
Latest return
FY2025
latest Form 990
Looks good: the latest return is for FY2025, 1 tax year back; within 2 tax years.
IRS e-file · Filing history
Surplus or deficit
3 of 5
filings with a surplus
Average surplus $7.5M a year · 20% of revenue · last 5 filings
Worth a look: a surplus in 3 of the last 5 filings.
Pt I · Ln 19 · 5 filings
Spent on programs
76%
of spending
Looks good: 76% of spending went to programs; 75% or more.
Pt IX · Ln 25 · col B
Pay to officers and key staff
$2.3M
to officers and key staff · 10% of spending
Looks good: pay to officers and key staff is 10% of spending; 15% or less.
Pt VII · Sec A
<1 mo
of spending, in cash
Plus $177.5M in investments, Pt X · Ln 11–13
Fine: 0.7 months of spending in cash, plus $177.5M in investments.
Pt X · Ln 1–2 · Pt I · Ln 18
Named funders
11
named funders · $148K
Looks good: 11 funders name it on their filings; 3 or more.
Funders’ Sch. I, 990-PF
Liabilities
$11.5M
3% of total assets
Looks good: liabilities are 3% of assets; 50% or less.
Pt X · Ln 26
Independent board members
16
of 16 voting members
Looks good: 16 of 16 voting members are independent, a majority.
Pt VI · Ln 1a–1b
Looks goodFineWorth a lookConcernNo data yetTap a box for the reason.
Revenue
$38.7M
Spent
$23.3M
To programs
76%
Net assets
$329.1M
By yearFY2021–FY2025
Revenue
$38.7M
FY2021
Tap a bar for its year
Revenue by fiscal year
FY2021$38.7M
FY2022$30.2M
FY2023$24.8M
FY2024$30.3M
FY2025$62.3M
Expenses
$23.3M
FY2021
Tap a bar for its year
Expenses by fiscal year
FY2021$23.3M
FY2022$19.3M
FY2023$29.0M
FY2024$33.9M
FY2025$43.4M
Net assets
$329.1M
FY2021
Tap a bar for its year
Net assets by fiscal year
FY2021$329.1M
FY2022$311.7M
FY2023$317.7M
FY2024$328.2M
FY2025$359.3M

From the FY2021 Form 990 (year ending June 2021) · figures checked against the IRS filing · see the original

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You’re viewing the FY2021 filing — not the latest on file. See the latest (FY2025) →

Is it real?

Yes. Never revoked by the IRS. Latest filing on record: FY2025. IRS ruling in Apr 1977.

IRS Pub. 78 · IRS Auto-Revocation List · IRS Business Master File

Where the money goes

76 cents of each dollar spent went to programs.

Program services 76% · $17.6M Management & general 11% · $2.5M Fundraising 13% · $3.1M

Form 990 Part IX, line 25, columns B–D. Every line is in By the numbers.

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Who runs it and what they're paid

27 people listed on the 990; $2.3M paid to officers and key staff.

Part VII, Section A · reportable compensation · most recent filed roster (FY2020); the FY2021 filing did not itemize Part VII
$351,751Pt VII · Sec A
VP Land Stewardship
$268,895Pt VII · Sec A
Treasurer & CFO
$256,692Pt VII · Sec A
VP of Marketing
$213,570Pt VII · Sec A
VP of Development
$201,791Pt VII · Sec A
Chief Talent Officer
$194,053Pt VII · Sec A
Director of Finance
$181,219Pt VII · Sec A
VP of Conservation (since July 2020)
$166,980Pt VII · Sec A

Walter T Moore’s $395K as President is at the 81st percentile of top reported officer pay among 324 $10–100M environment nonprofits. Peer set: organizations in the same NTEE major field of work and revenue-size band, compared on each org’s own highest-paid officer/key-employee, from Form 990 Part VII / 990-PF Part VIII. Descriptive placement, not a verdict on whether the pay is appropriate.

Compensation history total reportable pay by year · 8 named individuals · Part VII

NameFY2025FY2024FY2023FY2022FY2021
Walter T Moore$395,344$397,326$367,707$359,152$351,751
Mark Stevens$305,729$293,584$282,550$274,335$256,692
Gordon Clark$286,071$256,194$236,409$220,522$201,791
Curtis Riffle————$268,895
Noelle Chambers$267,932$249,961$229,416$207,883$166,980
Martha Tedesco$253,981$254,724$237,946$228,732$213,570
Diane Cordova$233,975$229,672$218,399$203,186$194,053
Justin Eliot$216,799$206,925$198,578$192,257$181,219

Total reportable compensation (Form 990 Part VII column D / Schedule J column E) by filing year, matched by name within this organization. The Schedule J base / bonus / deferred breakdown is not parsed into this dataset.

See Peninsula Open Space Trust executive salaries →

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Questions the 990 asks

The form asks each of these directly. These are the filed answers.

  • Family or business ties among officersPt VI · Ln 2No
  • Top official's pay set by an independent reviewPt VI · Ln 15aYes

Programs and updates

Preserves open land on the Peninsula and in the South Bay for everyone's enjoyment.

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Provided by the organization

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3 programs · $17.6M · in their own filed words · FY2020
01

Land Acquisition and Transfer Into Public Ownership

In fiscal year 2021, post completed and assisted a total of 12 transactions, consisting of 9 acquisitions that protected 3,167 acres and 3 TRANSFERS.LAND transactions- protected 227 acres to be added to the north coyote valley conservation area in the FUTURE.- acquired 331 acres in the mid coyote valley through three transactions which…

$11.3Mprogram expense
02

Land Management

Post currently holds 20,093 acres in fee ownership and holds conservation easements and deed restrictions on 14,458 acres. The organization has an established stewardship program for the lands it owns that includes resource conservation planning and management, along with active uses of land for conservation grazing and agriculture…

$3.6Mprogram expense
03

Community Outreach and Education

To further our community growth and engagement efforts, in fiscal year 2021, the organization continued our content marketing and engagement programs in order to grow our community and engage prospective donors.

$2.7Mprogram expense

Funders

Who pays for it.

From grant filings on record. Receipts are incomplete: individual donors are never listed.

Grants

Schedule I · received and paid
Grants received · FY2025
See all 11 funders →
Grants paid · 82 grants · $22.2M · 2020–2024
County of San Mateo Parks DepartmentFY2024$5,265,188
Climate Resilient CommunitiesCA · FY2024$185,000
Santa Clara Valley Open Space AuthorityFY2024$100,000
Unitemized GrantFY2024$84,000
San Mateo Resource Conservation DistrictFY2024$80,000
Amah Mutsun Land TrustCA · FY2024$50,000
Together Bay AreaCA · FY2024$35,000
Santa Clara Valley Habitat AgencyFY2024$25,000
University of California DavisFY2024$15,000
Saved by NatureCA · FY2024$13,000
CanopyCA · FY2024$10,500
Coastal QuestCA · FY2024$10,000
Puente De La Costa SurCA · FY2024$10,000
Sempervirens FundCA · FY2024$10,000
See all 82 grants →

By the numbers

The FY2021 990, line by line.

1The main four
Money inPt VIII
$38.7M
Ln 12
Investment incomeLn 3$22.4M
Gifts and grantsLn 1h$15.0M
Other incomeLn 4–11$844K
Money outPt IX
$23.3M
Ln 25
Programscol B$17.6M
Managementcol C$2.5M
Fundraisingcol D$3.1M
Owns and owesPt X
$329.1M
net assets · Ln 32
Cash and savingsLn 1–2$1.4M
Total assetsLn 16$340.6M
LiabilitiesLn 26$11.5M
PeoplePt VI, VII
27
listed · VII A
PaidVII A11
Voting boardVI 1a16
IndependentVI 1b16
2In more detail
Revenue in detailPt VIII
Gifts and grantsLn 1h$15.0M
Government grantsLn 1e$751K
Noncash giftsLn 1g$3.0M
Fees for servicesLn 2g$487K
Investment incomeLn 3$22.4M
Other incomeLn 4–11$844K
Gains on assetsLn 7$18.0M
Total revenueLn 12$38.7M
Assets in detailPt X, end of year
SavingsLn 2$1.4M
Cash and savings togetherLn 1–2$1.4M
InvestmentsLn 11–13$177.5M
Land, buildings, equipmentLn 10c$7.1M
Other assetsLn 15$125.9M
Total assetsLn 16$340.6M
LiabilitiesLn 26$11.5M
Net assetsLn 32$329.1M
OperationsPt I, VI
EmployeesI 579
VolunteersI 6277
Fiscal year endsHeaderJune
Conflict-of-interest policyVI 12aYes
Whistleblower policyVI 13Yes
Records policyVI 14Yes
3Year over year
Balance sheet, start vs end of yearPt X · col A, B
LineStart FY21End FY21
Cash and savingsLn 1–2$389K$1.4M
InvestmentsLn 11–13$158.5M$177.5M
Land, buildings, equipmentLn 10c$6.8M$7.1M
Total assetsLn 16$313.0M$340.6M
LiabilitiesLn 26$15.3M$11.5M
Net assetsLn 32$297.7M$329.1M
4Every line
Statement of functional expensesPt IX · every line
LineTotalProgramsManagementFundraising
Grants to domestic organizationsLn 1$7.2M$7.2M
Pay of current officers, directors and key staffLn 5$1.7M$833K$466K$423K
Other salaries and wagesLn 7$5.1M$2.6M$950K$1.5M
Pension plan contributionsLn 8$253K$123K$51K$79K
Other employee benefitsLn 9$565K$293K$106K$166K
Payroll taxesLn 10$249K$130K$44K$75K
Legal feesLn 11b$375K$343K$32K
Accounting feesLn 11c$47K$47K
Lobbying feesLn 11d$367K$367K
Professional fundraising feesLn 11e$301K$301K
Investment management feesLn 11f$323K$323K
Other fees for servicesLn 11g$2.0M$1.7M$149K$128K
Advertising and promotionLn 12$956K$923K$4K$29K
Office expensesLn 13$280K$120K$29K$131K
Information technologyLn 14$396K$215K$60K$120K
TravelLn 17$8K$5K$1K$2K
Conferences, conventions and meetingsLn 19$69K$40K$10K$18K
InterestLn 20$44K$15K$29K
Depreciation, depletion and amortizationLn 22$227K$119K$41K$68K
InsuranceLn 23$136K$85K$51K
Other expenses (24a–d)Ln 24$2.6M$2.4M$94K$66K
All other expensesLn 24e$221K$138K$43K$40K
Total functional expensesLn 25$23.3M$17.6M$2.5M$3.1M

Filing history

YearMoney inMoney outIn minus outNet assetsDownload
FY2025 Latest $62.3M$43.4M$18.8M$359.3M 990 PDF
FY2024 $30.3M$33.9M−$3.6M$328.2M 990 PDF
FY2023 $24.8M$29.0M−$4.3M$317.7M 990 PDF
FY2022 $30.2M$19.3M$10.9M$311.7M 990 PDF
FY2021 Viewing $38.7M$23.3M$15.4M$329.1M 990 PDF

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Schedules filed Part IV

III · Programs R · Related orgs G · Fundraising L · Interested persons I · Grants A · Public support M · Noncash J · Pay O · Explanations
See the full FY2021 990 (6 parts)
Part I · Summary $38,732,952 revenue, 12 lines filed
I-8 Contributions and grantsPrior year $24,703,919$14,969,390
I-9 Program service revenuePrior year $462,710$486,853
I-10 Investment incomePrior year $5,912,852$22,433,194
I-11 Other revenuePrior year $42,461$843,515
I-12 Total revenuePrior year $31,121,942$38,732,952
I-13 Grants and similar amounts paidPrior year $21,786,863$7,150,362
I-14 Benefits paid to membersPrior year $0$0
I-15 Salaries and benefitsPrior year $7,207,145$7,879,440
I-16a Professional fundraising feesPrior year $0$300,641
I-17 Other expensesPrior year $8,265,518$7,982,022
I-18 Total expensesPrior year $37,259,526$23,312,465
I-19 Revenue less expensesPrior year −$6,137,584$15,420,487
Part VI · Governance 16 of 16 board members independent, no flags
VI-1a Voting members of the governing body16
VI-1b Independent voting members16
VI-2 Family or business relationship among officers or directorsNo
VI-12a Written conflict of interest policyYes
VI-13 Written whistleblower policyYes
VI-14 Document retention and destruction policyYes
VI-15a Process for setting top official's payYes
Part VIII · Statement of revenue $38,732,952 across 9 lines filed
VIII-1e Government grants$750,535
VIII-1f All other contributions, gifts and grants$14,218,855
VIII-1g Noncash contributions (included above)$2,992,367
VIII-1h Total contributions, gifts and grants$14,969,390
VIII-2a-f Program service revenue, itemized rows (sum of 2a–2f as filed)Related to mission $486,853$486,853
VIII-3 Investment incomeExcluded from tax $4,469,363$4,469,363
VIII-7 Net gain or loss on sales of assetsExcluded from tax $17,963,831$17,963,831
VIII-11a-d Other revenue, itemized rows (sum of 11a–11d as filed)Excluded from tax $843,515$843,515
VIII-12 Total revenueRelated to mission $486,853 · Unrelated business $0 · Excluded from tax $23,276,709$38,732,952
Part IX · Statement of functional expenses $23,312,465 across 22 lines filed
IX-1 Grants to domestic organizationsPrograms $7,150,362$7,150,362
IX-5 Pay of current officers, directors and key staffPrograms $832,713 · Management $465,598 · Fundraising $423,234$1,721,545
IX-7 Other salaries and wagesPrograms $2,645,921 · Management $949,562 · Fundraising $1,495,703$5,091,186
IX-8 Pension plan contributionsPrograms $122,963 · Management $50,894 · Fundraising $79,299$253,156
IX-9 Other employee benefitsPrograms $293,459 · Management $105,609 · Fundraising $165,889$564,957
IX-10 Payroll taxesPrograms $130,495 · Management $43,580 · Fundraising $74,521$248,596
IX-11b Legal feesPrograms $343,320 · Management $31,782$375,102
IX-11c Accounting feesManagement $46,654$46,654
IX-11d Lobbying feesPrograms $367,000$367,000
IX-11e Professional fundraising feesFundraising $300,641$300,641
IX-11f Investment management feesManagement $323,383$323,383
IX-11g Other fees for servicesPrograms $1,686,542 · Management $149,474 · Fundraising $128,386$1,964,402
IX-12 Advertising and promotionPrograms $922,859 · Management $3,856 · Fundraising $29,027$955,742
IX-13 Office expensesPrograms $119,951 · Management $29,037 · Fundraising $130,586$279,574
IX-14 Information technologyPrograms $215,456 · Management $60,301 · Fundraising $120,023$395,780
IX-17 TravelPrograms $5,042 · Management $1,061 · Fundraising $1,963$8,066
IX-19 Conferences, conventions and meetingsPrograms $40,386 · Management $10,487 · Fundraising $18,452$69,325
IX-20 InterestPrograms $15,047 · Management $29,367$44,414
IX-22 Depreciation, depletion and amortizationPrograms $118,582 · Management $41,244 · Fundraising $67,533$227,359
IX-23 InsurancePrograms $85,074 · Management $51,028$136,102
IX-24 Other expenses (24a–d)Programs $2,408,488 · Management $94,106 · Fundraising $65,553$2,568,147
IX-24e All other expensesPrograms $137,937 · Management $43,005 · Fundraising $40,030$220,972
IX-25 Total functional expensesPrograms $17,641,597 · Management $2,530,028 · Fundraising $3,140,840$23,312,465
Part X · Balance sheet $340,634,418 assets, 16 lines filed
Asset lines not itemized here account for $24,076,749; see the IRS return.
X-2 Savings and temporary cash investmentsStart of year $388,570$1,398,271
X-3 Pledges and grants receivableStart of year $5,301,784$3,617,854
X-4 Accounts receivableStart of year $1,111,053$755,535
X-9 Prepaid expenses and deferred chargesStart of year $356,235$264,966
X-10c Land, buildings and equipment, netStart of year $6,833,133$7,133,029
X-11 Publicly traded securitiesStart of year $151,606,352$169,343,685
X-12 Other securitiesStart of year $6,875,125$8,114,641
X-15 Other assetsStart of year $116,359,614$125,929,688
X-16 Total assetsStart of year $313,034,665$340,634,418
X-17 Accounts payable and accrued expensesStart of year $2,069,663$1,881,553
X-25 Other liabilitiesStart of year $5,142,935$5,621,099
X-26 Total liabilitiesStart of year $15,295,606$11,517,788
X-27 Net assets without donor restrictionsStart of year $288,735,090$318,092,687
X-28 Net assets with donor restrictionsStart of year $9,003,969$11,023,943
X-32 Total net assets or fund balancesStart of year $297,739,059$329,116,630
X-33 Total liabilities and net assetsStart of year $313,034,665$340,634,418
Part XI · Reconciliation of net assets $329,116,630 net assets at year end
XI-1 Total revenue$38,732,952
XI-2 Total expenses$23,312,465
XI-3 Revenue less expenses$15,420,487
XI-4 Net assets at start of year$297,739,059
XI-5 Net unrealized gains (losses) on investments$15,957,084
XI-9 Other changes in net assets$0
XI-10 Net assets at end of year$329,116,630

Form 990 e-file (XML) FY2021 from the IRS · Classification, formation year and address from the IRS Business Master File

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