Our mission is to spark each and every person to love math. Program participants embark on a math journey with creative opportunities for math exploration, learning and discovery to foster positive connections to math, boost math confidence and help students see math as relevant to their future. We aim to reduce the equity gap in math education for girls and students of color, diversify the pipeline of people pursuing STEAM careers and better prepare youth to thrive in the digital economy of the 21st century. We collaborate with parents, teachers, school district leaders and nonprofit partners to create in-school and after-school enrichment programs, focusing on 3rd-8th grade students. This year we ran a math-through-origami teacher training, a math-related career event for middle schoolers, family activities, and math hip hop concerts, all facilitated with partner organizations.

501(c)(3) charity; gifts are tax-deductible.
74¢ of each $1 spent went to programs.
Run by 46 volunteers.
Mission: Form 990 Part I, line 1 · Status: IRS Pub. 78 · Programs: Part IX · People: Part I, lines 5–6

Before you give

FY2025 · 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 4
filings with a surplus
Average surplus $114K a year · 17% of revenue · last 4 filings
Fine: a surplus in 3 of the last 4 filings.
Pt I · Ln 19 · 4 filings
Spent on programs
74%
of spending
Fine: 74% of spending went to programs; 65% to 75%.
Pt IX · Ln 25 · col B
Pay to officers and key staff
$86K
to officers and key staff · 9% of spending
Looks good: pay to officers and key staff is 9% of spending; 15% or less.
Pt VII · Sec A
<1 mo
of spending, in cash
Plus $235K in investments, Pt X · Ln 11–13
Fine: 0.9 months of spending in cash, plus $235K in investments.
Pt X · Ln 1–2 · Pt I · Ln 18
Named funders
10
named funders · $459K
Looks good: 10 funders name it on their filings; 3 or more.
Funders’ Sch. I, 990-PF
Liabilities
$248K
31% of total assets
Looks good: liabilities are 31% of assets; 50% or less.
Pt X · Ln 26
Independent board members
10
of 10 voting members
Looks good: 10 of 10 voting members are independent, a majority.
Pt VI · Ln 1a–1b
Looks goodFineWorth a lookConcernNo data yetTap a box for the reason.
Revenue
$1.1M
+36% vs prior year
Spent
$934K
To programs
74%
Net assets
$545K
By yearFY2021–FY2025
Revenue
$1.1M
FY2025▲ +36%
Tap a bar for its year
Revenue by fiscal year
FY2021$65K
FY2022$180K
FY2023$489K
FY2024$836K
FY2025$1.1M
Expenses
$934K
FY2025▲ +11%
Tap a bar for its year
Expenses by fiscal year
FY2021Not on file
FY2022$144K
FY2023$267K
FY2024$845K
FY2025$934K
Net assets
$545K
FY2025▲ +19%
Tap a bar for its year
Net assets by fiscal year
FY2021$57K
FY2022$93K
FY2023$321K
FY2024$459K
FY2025$545K

From the FY2025 Form 990 (year ending June 2025) · figures checked against the IRS filing · see the original

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Is it real?

Yes. Never revoked by the IRS. Latest filing on record: FY2025. IRS ruling in Sep 2019.

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

Where the money goes

74 cents of each dollar spent went to programs.

Program services 74% · $688K Management & general 14% · $127K Fundraising 13% · $119K

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

11 people listed on the 990; $86K paid to officers and key staff.

Part VII, Section A · reportable compensation · most recent filed roster (FY2024); the FY2025 filing did not itemize Part VII
Executive Director
$86,285Pt VII · Sec A
$0Pt VII · Sec A
Vice President
$0Pt VII · Sec A
Treasurer
$0Pt VII · Sec A
Secretary
$0Pt VII · Sec A
Board Member
$0Pt VII · Sec A
Board Member
$0Pt VII · Sec A
Board Memeber
$0Pt VII · Sec A

Jennifer Quinn’s $86K as Executive Director is at the 22nd percentile of top reported officer pay among 3924 $1–10M arts & culture 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 · 2 named individuals · Part VII

NameFY2025FY2021
Jennifer Quinn$86,285—
Siobhan Daly—$500

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 Seattle Universal Math Museum 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

Inspires students to love math through creative exploration, building confidence and future readiness.

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Provided by the organization

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3 programs · $688K · in their own filed words · FY2024
01

General Program

General programs includes the development and delivery of summ's core math education initiatives, including program design, curriculum development, exhibits, workshops, and public-facing learning experiences.

$523Kprogram expense
02

Community Outreach

Community outreach supports free and low-cost math programming delivered at community centers, schools, libraries, and public events. This includes family math fun events and the materials, supplies, and preparation needed to provide hands-on math experiences to families and community members.

$111Kprogram expense
03

Museum

Summ continued with multiple math education programming in partnership with multiple organizations, schools, libraries, community centers and other museums to facilitate learning math in a fun, hands-on way for all ages of participants.

$54Kprogram expense

Funders

Who pays for it.

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

Grants

Schedule I · funders on record
Grants received · FY2024
See all 10 funders →

By the numbers

The FY2025 990, line by line.

1The main four
Money inPt VIII
$1.1M
Ln 12
Gifts and grantsLn 1h$1.0M
Fees for servicesLn 2g$95K
Investment incomeLn 3$9K
Money outPt IX
$934K
Ln 25
Programscol B$688K
Managementcol C$127K
Fundraisingcol D$119K
Owns and owesPt X
$545K
net assets · Ln 32
Cash and savingsLn 1–2$70K
Total assetsLn 16$792K
LiabilitiesLn 26$248K
PeoplePt VI, VII
11
listed · VII A
PaidVII A1
Voting boardVI 1a10
IndependentVI 1b10
2In more detail
Revenue in detailPt VIII
Gifts and grantsLn 1h$1.0M
Government grantsLn 1e$2K
Noncash giftsLn 1g$5K
Fundraising eventsLn 1c$25K
Fees for servicesLn 2g$95K
Investment incomeLn 3$9K
Other incomeLn 4–11$8K
Total revenueLn 12$1.1M
Assets in detailPt X, end of year
CashLn 1$22K
SavingsLn 2$48K
Cash and savings togetherLn 1–2$70K
InvestmentsLn 11–13$235K
Land, buildings, equipmentLn 10c$151K
Total assetsLn 16$792K
LiabilitiesLn 26$248K
Net assetsLn 32$545K
OperationsPt I, VI
EmployeesI 50
VolunteersI 646
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 FY25End FY25
Cash and savingsLn 1–2$294K$70K
InvestmentsLn 11–13$235K
Land, buildings, equipmentLn 10c$151K
Total assetsLn 16$475K$792K
LiabilitiesLn 26$17K$248K
Net assetsLn 32$459K$545K
4Every line
Statement of functional expensesPt IX · every line
LineTotalProgramsManagementFundraising
Pay of current officers, directors and key staffLn 5$212K$157K$30K$25K
Other salaries and wagesLn 7$415K$335K$19K$61K
Other employee benefitsLn 9$13K$10K$2K$1K
Payroll taxesLn 10$69K$62K$1K$6K
Accounting feesLn 11c$22K$0$22K$0
Other fees for servicesLn 11g$37K$32K$5K$500
Advertising and promotionLn 12$696$25$646$25
Office expensesLn 13$53K$36K$10K$7K
Information technologyLn 14$2K$2K$412$0
OccupancyLn 16$33K$33K$59$0
TravelLn 17$9K$7K$1K$802
Conferences, conventions and meetingsLn 19$1K$1K$0$0
InterestLn 20$0
Payments to affiliatesLn 21$0
InsuranceLn 23$5K$2K$3K$0
Other expenses (24a–d)Ln 24$61K$11K$33K$16K
Total functional expensesLn 25$934K$688K$127K$119K

Filing history

YearMoney inMoney outIn minus outNet assetsDownload
FY2025 Latest Viewing $1.1M$934K$205K$545K 990 PDF
FY2024 $836K$845K−$9K$459K 990 PDF
FY2023 $489K$267K$222K$321K 990 PDF
FY2022 $180K$144K$36K$93K 990 PDF
FY2021 $65K$57K 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 O · Explanations
See the full FY2025 990 (6 parts)
Part I · Summary $1,138,773 revenue, 12 lines filed
I-8 Contributions and grantsPrior year $792,665$1,026,041
I-9 Program service revenuePrior year $26,601$95,343
I-10 Investment incomePrior year $15,672$9,299
I-11 Other revenuePrior year $1,330$8,090
I-12 Total revenuePrior year $836,268$1,138,773
I-13 Grants and similar amounts paidPrior year $24,723$0
I-14 Benefits paid to membersPrior year $0$0
I-15 Salaries and benefitsPrior year $383,509$709,053
I-16a Professional fundraising feesPrior year $34,000$0
I-17 Other expensesPrior year $402,601$224,722
I-18 Total expensesPrior year $844,833$933,775
I-19 Revenue less expensesPrior year −$8,565$204,998
Part VI · Governance 10 of 10 board members independent, no flags
VI-1a Voting members of the governing body10
VI-1b Independent voting members10
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 $1,138,773 across 13 lines filed
Lines not itemized here account for $2,193 of total revenue; see the IRS return.
VIII-1a Federated campaigns$0
VIII-1b Membership dues$0
VIII-1c Fundraising events$25,048
VIII-1d Related organizations$0
VIII-1e Government grants$1,500
VIII-1f All other contributions, gifts and grants$999,493
VIII-1g Noncash contributions (included above)$4,619
VIII-1h Total contributions, gifts and grants$1,026,041
VIII-2a-f Program service revenue, itemized rows (sum of 2a–2f as filed)Related to mission $95,343 · Unrelated business $0 · Excluded from tax $0$95,343
VIII-3 Investment incomeRelated to mission $0 · Unrelated business $0 · Excluded from tax $9,299$9,299
VIII-5 RoyaltiesRelated to mission $0 · Unrelated business $0 · Excluded from tax $0$0
VIII-8 Net income from fundraising eventsUnrelated business $0 · Excluded from tax $5,897$5,897
VIII-12 Total revenueRelated to mission $97,336 · Unrelated business $0 · Excluded from tax $15,396$1,138,773
Part IX · Statement of functional expenses $933,775 across 16 lines filed
IX-5 Pay of current officers, directors and key staffPrograms $157,216 · Management $29,744 · Fundraising $25,494$212,454
IX-7 Other salaries and wagesPrograms $334,762 · Management $18,676 · Fundraising $61,341$414,779
IX-9 Other employee benefitsPrograms $9,948 · Management $1,815 · Fundraising $1,244$13,007
IX-10 Payroll taxesPrograms $61,850 · Management $1,420 · Fundraising $5,543$68,813
IX-11c Accounting feesPrograms $0 · Management $21,845 · Fundraising $0$21,845
IX-11g Other fees for servicesPrograms $31,748 · Management $4,506 · Fundraising $500$36,754
IX-12 Advertising and promotionPrograms $25 · Management $646 · Fundraising $25$696
IX-13 Office expensesPrograms $35,969 · Management $10,034 · Fundraising $7,486$53,489
IX-14 Information technologyPrograms $2,069 · Management $412 · Fundraising $0$2,481
IX-16 OccupancyPrograms $33,329 · Management $59 · Fundraising $0$33,388
IX-17 TravelPrograms $7,315 · Management $1,315 · Fundraising $802$9,432
IX-19 Conferences, conventions and meetingsPrograms $1,177 · Management $0 · Fundraising $0$1,177
IX-20 Interest$0
IX-21 Payments to affiliates$0
IX-23 InsurancePrograms $1,741 · Management $3,205 · Fundraising $0$4,946
IX-24 Other expenses (24a–d)Programs $10,921 · Management $33,373 · Fundraising $16,220$60,514
IX-25 Total functional expensesPrograms $688,070 · Management $127,050 · Fundraising $118,655$933,775
Part X · Balance sheet $792,218 assets, 16 lines filed
X-1 Cash, non-interest-bearingStart of year $7,121$22,417
X-2 Savings and temporary cash investmentsStart of year $287,310$47,540
X-4 Accounts receivableStart of year $17,621$335,751
X-9 Prepaid expenses and deferred charges$79
X-10c Land, buildings and equipment, net$151,215
X-11 Publicly traded securities$231,692
X-12 Other securities$3,524
X-16 Total assetsStart of year $475,171$792,218
X-17 Accounts payable and accrued expensesStart of year $10,282$209,203
X-19 Deferred revenue$5,330
X-25 Other liabilitiesStart of year $6,371$33,128
X-26 Total liabilitiesStart of year $16,653$247,661
X-27 Net assets without donor restrictionsStart of year $62,931$132,244
X-28 Net assets with donor restrictionsStart of year $395,587$412,313
X-32 Total net assets or fund balancesStart of year $458,518$544,557
X-33 Total liabilities and net assetsStart of year $475,171$792,218
Part XI · Reconciliation of net assets $544,557 net assets at year end
XI-1 Total revenue$1,138,773
XI-2 Total expenses$933,775
XI-3 Revenue less expenses$204,998
XI-4 Net assets at start of year$458,518
XI-5 Net unrealized gains (losses) on investments$8,620
XI-6 Donated services and use of facilities$0
XI-7 Investment expenses$0
XI-8 Prior period adjustments$2,546
XI-9 Other changes in net assets−$130,125
XI-10 Net assets at end of year$544,557

Form 990 e-file (XML) FY2025 from the IRS · Classification, formation year and address from the IRS Business Master File

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