Skip to content
Ann Arbor PTO Thrift Shop Inc at a glanceAlso receives grants: funding profile →

· Public charity

Ann Arbor PTO Thrift Shop Inc

We are a local, nonprofit thrift shop promoting equity in our community by supporting Ann Arbor Public Schools parent teacher organizations and student activities.

$322k
Granted FY2025still arriving
21
Grants FY2025still arriving
1
States reached
$100k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
01100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Education$868kRecreation & Sports$19kHealth$12kAnimals$9kYouth Development$7kArts & Culture$7k
02FY2025 · 21 grants

Where the money goes

Grants by size, and the largest recipients.

How this is measured
The 21 grants below total $275,338, the rows itemized in this filing. The $322,462 headline is the total grant expense on the return; the other $47,124 is giving the schedule does not break out (grants under the $5,000 itemization floor, grants to individuals, grants on other schedules). Every figure below describes the itemized rows only.

By grant size · FY2025

  • Under $10k15 grants · $109k
  • $10k–50k5 grants · $66k
  • $50k–250k1 grant · $100k
$8,183
Median grant
1
States reached
$1.7M
Total assets
Largest grants
RecipientAmount
Ann Arbor Public Schools$100,000
Pioneer High School PTSO$16,690
Scarlett Middle School PTSO$16,383
Bryant-Pattengill PTO$12,171
Mitchell Elementary School PTO$10,675
Carpenter Elementary School PTO$10,051
Pittsfield Elementary School PTO$9,382
Allen Elementary School Parent Council$9,013
Community High School PTO$8,636
Tappan Middle School PTSO$8,410
Clague Middle School PTSO$8,183
Abbot Elementary School PTO$8,146
Huron High School PTSO$7,961
Slauson Middle School PTSO$7,216
Skyline High School PTSO$7,057
02The need
03

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Its human-services grants (FY22–25, $53k) land where the poverty rate runs at 14%, against an area that typically sits at 8%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 8%Burns Park Elementary School PTO: $5k → 14%Pioneer High School PTSO: $17k → 14%Pioneer High School PTSO: $15k → 14%Pioneer High School PTSO: $8k → 14%Pioneer High School PTSO: $8k → 14%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount
How this is measured
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.
How this is measured
US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

99%of every dollar goes to organizations it has funded before.
$913k · 23 repeat orgs$10k to everyone else

23 repeat relationships: 20 still active in FY2025, 3 since wound down; 1 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

23
1

Total granted

$913k
$5k

Median revenue growth · since first grant

0%
+23%

Still filing today

26%
100%

New vs renewed · share of each year

In FY2025, 98% of grant dollars renewed an existing relationship; $5k went to new ones.

50%100%’17’18’19’20’22’23’24’25
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’17’18’19’20’22’23’24’25
EducationHuman ServicesOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). The earliest year is left-censored: relationships that predate the data read as new. Theme is the grantee’s IRS cause.

Backed again, and grew

  • AA
    ANN ARBOR PUBLIC SCHOOLS
    8× · 2017–2025 · $342k
  • AA
    ANN ARBOR PIONEER HIGH SCHOOL PARENT TEACHER ORGANIZATION
    4× · 2022–2025 · $48k · revenue +9%
  • SP
    SCARLETT PTSO
    3× · 2023–2025 · $47k

Funded once

  • ML
    MARTIN LUTHER KING JR ELEMENTARY SCHOOL PTO
    one grant, 2024 · $5k · revenue +23%
How this is measured

Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.

04Its field

Closest unfunded matches

The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.

1
Auburn Middle School Pto

Parent and teacher organization for middle school

Education
2
Stony Point Elementary School Pto

The PTO seeks to help build community among students and families through spirit days and special events throughout the year. The PTO also organizes events to help care for Stony Point teachers and staff in tangible ways. The Stony Point…

Philanthropy
3
Mechanicsburg Area Parent Teacher Organization

Support for school related programs for the benefits of students.

Education
4
Ptsa Michigan Congress of Parents Teachers and Students

Education

Education
5
Patterson Ptso

The ptso raises money through fundrasising activities which is then distributed to teachers on an as-needed basis for classroom supplies, teaching resources, and equipment

Education
6
Lakeview Elementary Pto

Support lakeview school parents

Health
7
Ashland City Schools Pto

Supports school activities of Ashland City Schools

Education
8
Anthony Burns Elementary School Parent Teacher Organization

Elementary school support of teachers, students, and parents to promote eduational objectives

Education
9
Middleburg Elementary School Pto

School support provided by parents and teachers.

Education
10
Plymouth Scholars Pto

Parent teacher organization

Education
11
Arlene Hein Elementary School Pto

Aid the students of ahes

Education
12
Federal Hill Preparatory School Parent Teacher Organization

Support school and education.

Education
How this is measured
The grantee most central to the portfolio’s shape is Bryant Pattengill Pto; the most unlike its peers is Ann Arbor Skyline High School Parent Teacher Student Organizatio. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
04the grantee network

12 grantees tracked through their own filings, 2017–2025.

Each grant beside the grantee’s revenue from every source, year by year.

How this is measured

Counted here: distinct organizations funded across 2017 to 2025, not grant rows in a single year, so this will not match the grant count on the cover. 12 of the 25 grantees resolved in that span have returns of their own we could reconcile.

Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.

2
Load-bearing (≥25% of a budget)
0
Early backer (in before they grew)
8/12
Grantees still filing
5/12
Grew since first funded

Where the money sits, by cause and then by grantee

ANN ARBOR PUBLIC SCHOOLS: $342,428 · OtherANN ARBOR PUBLIC SCHOOLSBRYANT PATTENGILL PTO: $41,618 · OtherBRYANT PATTENGILL PTOMITCHELL SCHOOL PARENT-TEACHER ORGANIZATION INC: $36,371 · OtherSKYLINE HIGH PTO: $32,549 · OtherCARPENTER PTO: $30,137 · OtherPITTSFIELD ELEMENTARY SCHOOL PARENT TEACHER ASSOCIATION: $28,969 · OtherDICKEN SCHOOL PARENT TEACHER ORGANIZATION: $25,865 · OtherJOHN ALLEN PARENT COUNCIL: $25,649 · Other+7 more: $131,496 · Other+7 moreSCARLETT PTSO: $47,025 · EducationSCARLETT PTSOHURON HIGH SCHOOL PTSO: $23,442 · EducationHURON HIGH SCHOOL PTS…TAPPAN PTSO: $23,024 · EducationTAPPAN PTSOANN ARBOR SKYLINE HIGH SCHOOL PARENT TEACHER STUDENT ORGANIZATIO: $22,963 · EducationANN ARBOR SKYLINE HIG…ABBOT ELEMENTARY SCHOOL PTO: $21,271 · EducationABBOT ELEMENTARY SCHO…SLAUSON MIDDLE SCHOOL PTSO: $21,036 · EducationSLAUSON MIDDLE SCHOOL…THURSTON PARENT TEACHER ORGANIZATIO: $10,982 · EducationTHURSTON PARENT TEACH…+1 more: $5,076 · EducationANN ARBOR PIONEER HIGH SCHOOL PARENT TEACHER ORGANIZATION: $47,702 · Human ServicesBURNS PARK SCHOOL PARENT TEACHER OR: $5,231 · Human Services
Other$695,082Education$174,819Human Services$52,933

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$100kgrantee revenue →↑ funder's share of their budgetANN ARBOR PIONEER HIGH SCHOOL PARENT TEACHER ORGANIZATION: $47,702 over 4y, 21% of budgetBRYANT PATTENGILL PTO: $41,618 over 4y, 42% of budgetHURON HIGH SCHOOL PTSO: $23,442 over 3y, 22% of budgetANN ARBOR SKYLINE HIGH SCHOOL PARENT TEACHER STUDENT ORGANIZATIO: $22,963 over 3y, 59% of budgetABBOT ELEMENTARY SCHOOL PTO: $21,271 over 3y, 12% of budgetANN ARBOR HURON HIGH SCHOOL BOOSTER CLUB INC: $19,466 over 2y, 2.6% of budgetTHURSTON PARENT TEACHER ORGANIZATIO: $10,982 over 2y, 13% of budgetMARTIN LUTHER KING JR ELEMENTARY SCHOOL PTO: $5,076 over 1y, 4.7% of budget
Grantee by grantee: a decade per organization, before and after funding

A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.

  • Who funds ANN ARBOR PIONEER HIGH SCHOOL PARENT TEACHER ORGANIZATION ↗
  • Who funds SCARLETT PTSO ↗
  • Who funds BRYANT PATTENGILL PTO ↗
  • Who funds HURON HIGH SCHOOL PTSO ↗
  • Who funds TAPPAN PTSO ↗
  • Who funds ANN ARBOR SKYLINE HIGH SCHOOL PARENT TEACHER STUDENT ORGANIZATIO ↗
  • Who funds ABBOT ELEMENTARY SCHOOL PTO ↗
  • Who funds SLAUSON MIDDLE SCHOOL PTSO ↗
  • Who funds ANN ARBOR HURON HIGH SCHOOL BOOSTER CLUB INC ↗
  • Who funds THURSTON PARENT TEACHER ORGANIZATIO ↗
  • Who funds BURNS PARK SCHOOL PARENT TEACHER OR ↗
  • Who funds MARTIN LUTHER KING JR ELEMENTARY SCHOOL PTO ↗

Co-funders

Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.

American Online Givin…Amazonsmile Foundation
American Online Giving Foundation IncDE2.9× affinity4 shared granteesties to 1 of 1Hover any node to trace its alignments.Compare side by side →

Open a dossier: American Online Giving Foundation Inc · Amazonsmile Foundation

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

How much its grantees rely on government

Each dot is one organization Ann Arbor PTO Thrift Shop Inc funds: left to right is the share of its income from government, bottom to top the share from Ann Arbor PTO Thrift Shop Inc. Bigger dots raise more.

2023
’20’21’22’23’24’25
no gov · 00%4%15%34%60%funder's share of their income ↑0%1%3%4%5%share of the org’s income from government →
    no gov moneyreceives it· size = income
    0get no government money at all
    0rely on government for over half their income
    ⤢ axis zoomed · 0–5%
    typical government reliance, FY20–25
    How this is measured
    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: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that a grant caused the public funding. Coverage is precision-first, a floor rather than 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 to 24 months.
    05Through Plinth

    Warm introductions · Powered by PlinthPlus

    How do I get to Ann Arbor PTO Thrift Shop Inc?

    Find your warmest path to Ann Arbor PTO Thrift Shop Inc through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.

    Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.

    On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 25 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

    How this is measured
    Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

    Generated from the IRS Form 990 e-file return for fiscal year 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

    Source object · view filing

    Play a game based on Ann Arbor PTO Thrift Shop’s filings →

    More from the funding graph

    The unnamed billions
    grants reported with no recipient in the public record
    The regranting layer
    51% of grant dollars land in the regranting layer
    The DAF merry-go-round
    $9.7B circulates between donor-advised funds
    The endowment market
    who holds foundation money, and what just moved
    The camps
    funders cluster by geography, not ideology
    By state
    where grant money is based, and what stays home