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· Private foundation
DOUGLAS AND HEATHER MAY FAMILY
This foundation does not accept unsolicited requests — it funds preselected organizations.
$43k
Granted FY2024
16
Grants
3
Communities
$12k
Largest
01What you fund
01FY2024 · 16 grants
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k15 grants · $31k
- $10k–50k1 grant · $12k
$1,500
Median grant
3
States reached
$1.0M
Total assets
Largest grants
- ALZHEIMER'S ASSOCIATION$11,900
- HOLLAND HALL$7,500
- PARK CHURCH$6,500
- UNIVERSITY OF TULSA$2,000
- LILYFIELD$2,000
- ARTS ALLIANCE TULSA$2,000
- TULSA AREA UNITED WAY$2,000
- UNIV OF MISSOURI - KINDER INSTITUTE$1,500
- HIGHLAND CHURCH OF CHRIST$1,000
- TULSA BOYS HOME$1,000
- TULSA ZOO$1,000
- DOWN SYNDROME ASSOC OF TULSA$1,000
- TIGER SCHOLARSHIP FUND$1,000
- EMERGENCY INFANT SERVICES$1,000
- TULSA LAWYERS FOR CHILDREN$1,000
02The need
02
Do your dollars go where the need is?
Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.
show:
Your human-services grants (FY24–24, $3k) land where the poverty rate runs at 15% — the area typically sits at 14%. 100% of those dollars reach neighborhoods with above-average need. Most of your grants land in higher-need ZIPs.
grant to an above-average-need area below average· circle size = grant amount
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.
US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA, United Way ALICE — shown as context about the area, never attributed to your giving.
03Your field
The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.
1
Tulsa Community Foundation
Tcf is organized and operated for chartibale purposes primarily for the long term benefit of the tulsa metropolitan area and eastern oklahoma charitable causes.
Philanthropy
2
Youth Services of Tulsa Inc
To provide quality programs and services for the protection, education, and positive development of youth.
Human Services
3
Jewish Federation of Tulsa
To promote cultural, social, philanthropic and spiritual interests and to promote jewish values.
Philanthropy
4
Tullahoma Bridges Out of Poverty
Education
5
Tulsa Advocates for the Protection
To improve the lives of children and youth in oklahoma's child welfare system by providing resources and building community.
Crime & Legal
6
Tulsa Firefighters Benevolence Fund
Provide relief to family members due to death, injury, or illness.
Philanthropy
7
Tulsa Legacy Charter School
To prepare students for college through a rigorous arts infused program.
Education
8
University of Central Oklahoma
Funding of college scholarships and support of university programs.
Education
9
Tulsa Symphony Orchestra Inc
Entertains, educates, heals, and inspires through musical excellence, innovation, and collaboration.
Arts & Culture
10
Tulsa School of Arts and Sciences
The mission of tsas middle and high school is to provide students a multi-strand liberal arts education in a safe, supportive, individualized and challenging school environment through a college preparatory curriculum.
Education
11
Tulsa Bike Share Inc
Transforming our Tulsa community by providing a high quality, convenient, and affordable bicycle transit system that connects people to places where they live, work, and play.
Environment
12
Tulsa Childrens Museum Inc
To inspire children, connect families, and build community through exploration, exhibits, programming, and play.
Arts & Culture
For reference, the grantee most central to the portfolio’s shape is Tulsa Police Foundation Inc and the most unlike its peers is University of Tulsa. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
03the grantee network
9 grantees, every filing reconciled, 2017–2024.
Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue.
0
Load-bearing (≥25% of a budget)
3
Early backer (in before they grew)
9/9
Grantees still filing
6/9
Grew since you first funded
Where your money sits — by cause, then by grantee
Other$32,400Human Services$4,000Arts & Culture$2,000Education$2,000Health$1,000Civil Rights$1,000Crime & Legal$500
Each org by its size and your share of it — top-left is where you’re load-bearing
Go grantee by grantee — a decade per org, and how each moved after you funded them
A decade per grantee — revenue shaded, your grants as bars, all rows on one timeline.
The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — most of these funders back each other's grantees too.
Tulsa Community FoundationOK16.9× affinity6 shared granteesties to 7 of 7Hover any node to trace its alignments.Compare side by side →
Open a dossier: Tulsa Community Foundation · Judith and Jean Adams Charitable Foundation · The Anne and Henry Zarrow Foundation · George Kaiser Family Foundation · The Bank of America Charitable Foundation Inc · Fidelity Investments Charitable Gift Fund · Donor Advised Charitable Giving Inc · Amazonsmile Foundation
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.
Government reliance of your grantees
Every dot is one organisation DOUGLAS AND HEATHER MAY FAMILY funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal or a single department — and drag the year to watch it move.
2024
’20’21’22’23’24
no gov moneyreceives it· size = income
7get no government money at all
0rely on government for over half their income
⤢ axis zoomed · 0–10%
typical government reliance, FY20–24
Government income is each org’s traced federal awards (USASpending — grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check. An association, not a claim that your grant caused the public funding. Coverage is precision-first — a floor, not a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12–24 months.
04Through Plinth
Through Plinth
Your grantmaking, live and operational
This dossier was generated cold from public filings. In Plinth it’s a working system — every applicant assessed and every grant monitored. Here’s a taste, run on one of your grantees: DOWN SYNDROME ASSOC OF TULSA.
Agentic due diligence · confidence × risk
Financial management
insufficient risk
Limited financial data in public filings.
Track record & reputation
low risk
8 years of Form 990 filings, still active; revenue up 2.1× since.
Legal standing
low risk
US 501(c)(3); EIN 731249272 on file with current IRS Form 990 filings.
Governance
Live in Plinth
Board composition & governance documents — verified live in Plinth from the applicant.
Compliance & sanctions
Live in Plinth
OFAC / UN sanctions screening — run live in Plinth at assessment.
Program capacity
Live in Plinth
Staffing, M&E and activity alignment — assessed live in Plinth from submitted proposals.
Live · Plinth’s real DD engine
Run the actual assessment on DOWN SYNDROME ASSOC OF TULSA, cold from public data.
Generated live from public IRS filings + open web sources by Plinth’s agentic engine. Shown as an illustration of the product, not a formal assessment.
Post-award monitoring · continuous checks
- Awaiting reportFinancial stability— Runway not derivable from filings.
- On trackSustained operations— Filing through 2024; revenue grew over the period.
- On trackReliance on your funding— Your grants peaked at 1% of their budget — diversified.
- Awaiting reportEvidence of delivery— Plinth collects the grantee's own monitoring reports post-award.
What you see here is static and public. In Plinth it’s operational — the full six-pillar framework on every applicant (with their own documents + live registry and sanctions checks), monitoring dashboards on every award, custom board reports, and eligibility routing for intake.
Agentic due diligenceMonitoring dashboardsCustom board reportsEligibility routing
Preview generated from this grantee’s public IRS filings and independent reporting. Pillars marked “live in Plinth” require the applicant’s submitted documents. Shown as illustration, not a formal assessment.
Warm introductions · Powered by PlinthPro
How do I get to Douglas and Heather May Family?
Find your warmest path to Douglas and Heather May Family through people who sit on both boards. Search for your organization and Plinth traces the introduction across shared trustees and officers.
Every link is a documented governance overlap in public IRS 990 filings — not a personal network — and each hop carries its own confidence tier. Low-confidence or distant paths are held back rather than guessed.
More from the funding graph
The regranting layer
51% of grant dollars pass through an intermediary
The DAF merry-go-round
$9.7B circulates between donor-advised funds
Strange bedfellows
the named clusters of US funding
The camps
funders cluster by geography, not ideology
By state
where grant money is based, and what stays home
State money flows
the interactive map of money crossing state lines