Civic Intelligence

United Math Circles Foundation

EIN 46-3636266 • 501(c)3 • El Cerrito, CA

Profile

The specific purpose of this organization is to enrich mathematical education, to advance mathematical knowledge and skills among children, and to carry on other charitable and educational activities associated with this goal as allowed by law.

5426 Hillside AveEl Cerrito, CA 94530

www.unitedmathcirclesfoundation.org

Siviq Scores

Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.

Liabilities / Assets

33rd percentile

0.00x

Tied with the lowest-debt nonprofits in its peer group.

501(c)3 • $500k-$1M nonprofits • Source year 2025

Liabilities / Revenue

34th percentile

0.00x

Tied with the lowest-debt nonprofits in its peer group.

501(c)3 • $500k-$1M nonprofits • Source year 2025

Net Margin

21st percentile

-12%

Higher net margin than 21% of similar nonprofits.

501(c)3 • $500k-$1M nonprofits • Source year 2025

Top Officer Pay

Score unavailable

No value available

No filing with officer rows is available for this organization yet.

Asset Growth

22nd percentile

-8.1%

Faster asset growth than 22% of similar nonprofits.

501(c)3 • $500k-$1M nonprofits • Annualized from 2024 to 2025

Revenue Growth

13th percentile

-25%

Faster revenue growth than 13% of similar nonprofits.

501(c)3 • $500k-$1M nonprofits • Annualized from 2024 to 2025

Balance Sheet
Liabilities / Assets33rd percentile

Assets

Down

$769,220

Down $67,971 (-8.1%) from 2024

Liabilities

Flat

$0

Flat from 2024

Net Assets

Down

$769,220

Down $67,971 (-8.1%) from 2024

Operations
Liabilities / Revenue34th percentileNet Margin21st percentile

Revenue

Down

$551,286

Down $186,657 (-25%) from 2024

Expenses

Up

$619,257

Up $5,666 (+0.9%) from 2024

Net Income

Down

-$67,971

Down $192,323 (-155%) from 2024

Trend Graphs

Balance Sheet Trend

Asset Growth22nd percentile

Grouped bars show assets, liabilities, and net assets across loaded filings.

$1.0M$500K$0Assets 2014: $26,413Net Assets 2014: $26,4132014Assets 2015: $159,421Liabilities 2015: $0Net Assets 2015: $159,4212015Assets 2016: $169,620Liabilities 2016: $0Net Assets 2016: $169,6202016Assets 2017: $182,218Liabilities 2017: $0Net Assets 2017: $182,2182017Assets 2018: $311,455Liabilities 2018: $0Net Assets 2018: $311,4552018Assets 2019: $329,480Liabilities 2019: $0Net Assets 2019: $329,4802019Assets 2020: $445,387Liabilities 2020: $0Net Assets 2020: $445,3872020Assets 2021: $581,874Liabilities 2021: $0Net Assets 2021: $581,8742021Assets 2022: $646,550Liabilities 2022: $0Net Assets 2022: $646,5502022Assets 2023: $712,839Liabilities 2023: $0Net Assets 2023: $712,8392023Assets 2024: $837,191Liabilities 2024: $0Net Assets 2024: $837,1912024Assets 2025: $769,220Liabilities 2025: $0Net Assets 2025: $769,2202025

Highlighted filing

2025

Assets$769,220
Liabilities$0
Net Assets$769,220
Open 2025 Filing

Operations Trend

Revenue Growth13th percentile

Revenue, expenses, and net income by year, with the latest filing highlighted.

$1.0M$500K$0-$500KRevenue 2014: $55,075Expenses 2014: $28,662Net Income 2014: $26,4132014Revenue 2015: $266,862Expenses 2015: $133,854Net Income 2015: $133,0082015Revenue 2016: $225,968Expenses 2016: $215,769Net Income 2016: $10,1992016Revenue 2017: $346,714Expenses 2017: $334,116Net Income 2017: $12,5982017Revenue 2018: $532,679Expenses 2018: $403,442Net Income 2018: $129,2372018Revenue 2019: $522,732Expenses 2019: $504,707Net Income 2019: $18,0252019Revenue 2020: $709,942Expenses 2020: $594,035Net Income 2020: $115,9072020Revenue 2021: $761,876Expenses 2021: $625,389Net Income 2021: $136,4872021Revenue 2022: $710,919Expenses 2022: $646,243Net Income 2022: $64,6762022Revenue 2023: $819,278Expenses 2023: $752,989Net Income 2023: $66,2892023Revenue 2024: $737,943Expenses 2024: $613,591Net Income 2024: $124,3522024Revenue 2025: $551,286Expenses 2025: $619,257Net Income 2025: -$67,9712025

Highlighted filing

2025

Revenue$551,286
Expenses$619,257
Net Income-$67,971
Open 2025 Filing

Filings

Most recent year

2025 • Form 990Facts available. Structured filing facts are available, but richer extracted sections are limited.

Open filing
Assets
$769,220
Liabilities
$0
Net assets
$769,220
Revenue
$551,286
Expenses
$619,257
Net income
-$67,971
Balance SheetOperations
YearAssetsLiabilitiesNet AssetsRevenueExpensesNet Income
2025Facts available. Structured filing facts are available, but richer extracted sections are limited.$7.69$0.00$7.69$5.51$6.19$0.68
2024Detailed filing. Detailed filing data is available for this year.$8.37$0.00$8.37$7.38$6.14$1.24
2023Detailed filing. Detailed filing data is available for this year.$7.13$0.00$7.13$8.19$7.53$0.66
2022Detailed filing. Detailed filing data is available for this year.$6.47$0.00$6.47$7.11$6.46$0.65
2021Detailed filing. Detailed filing data is available for this year.$5.82$0.00$5.82$7.62$6.25$1.36
2020Detailed filing. Detailed filing data is available for this year.$4.45$0.00$4.45$7.10$5.94$1.16
2019Detailed filing. Detailed filing data is available for this year.$3.29$0.00$3.29$5.23$5.05$0.18
2018Detailed filing. Detailed filing data is available for this year.$3.11$0.00$3.11$5.33$4.03$1.29
2017Detailed filing. Detailed filing data is available for this year.$1.82$0.00$1.82$3.47$3.34$0.13
2016Detailed filing. Detailed filing data is available for this year.$1.70$0.00$1.70$2.26$2.16$0.10
2015Detailed filing. Detailed filing data is available for this year.$1.59$0.00$1.59$2.67$1.34$1.33
2014Detailed filing. Detailed filing data is available for this year.$0.26$0.26$0.55$0.29$0.26
Latest Filing Detail
Jump To
Filing Snapshot
Filing Period
Jul 1, 2024 to Jun 30, 2025
Signed
Nov 13, 2025
Return Version
2024v5.2
Gross Receipts
$551,286
Mission and Program Overview

Mission

The specific purpose of this organization is to enrich mathematical education, to advance mathematical knowledge and skills among children, and to carry on other charitable and educational activities associated with this goal as allowed by law.

Balance Sheet Detail
LineBeginningEndChange
Assets
Cash and Non-Interest-Bearing Accounts$837,191$769,220▼ $67,971
Savings and Temporary Cash Investments-$0-
Accounts Receivable-$0-
Other Notes and Loans Receivable, Net-$0-
Pledges and Grants Receivable-$0-
Receivable From Disqualified Prsn-$0-
Receivables From Officers Etc-$0-
Investments Other Securities-$0-
Investments Program Related-$0-
Investments in Publicly Traded Securities-$0-
Land, Buildings, and Equipment, Net-$0-
Intangible Assets-$0-
Inventories for Sale or Use-$0-
Prepaid Expenses and Deferred Charges-$0-
Total Assets$837,191$769,220▼ $67,971
Other Assets Total-$0-
Liabilities
Total Liabilities$0$0→ $0
Net Assets / Fund Balance
Net Assets Without Donor Restrictions$837,191$769,220▼ $67,971
Total Net Assets Fund Balance$837,191$769,220▼ $67,971
Total Liabilities and Net Assets / Fund Balance$837,191$769,220▼ $67,971
Compensation and Service Providers
Top Officer PayScore unavailable

Employees

NameTitleFull / Part TimeBaseTotal
Zvezdelina StankovaCEOFT$108,705$108,705
Laura GiventalCOOPT$86,950$86,950
Peter KoroteevCFO-$15,250$15,250
Maria NemirovskayaBoard member-$14,700$14,700
Patricio AnguloMTRW Instructor-$12,648$12,648

Board Members and Trustees

NameTitle
Quan LamPresident
Christopher OvertonBoard member
Dmitri MironovBoard member
Ivan MaticBoard member
Paul ZeitzBoard member
Richard KubelkaBoard member
Slobodan SimicBoard member
Anna RatnerSecretary
Revenue and Support

Revenue Composition

Contributions and Grants
$15,843
Program Service Revenue
$535,443
Investment Income
$0
Other Revenue
$0
All Other Contributions
$15,843
Change in Net Assets
$-67,971
Expenses and Functional Allocation

Major Expense Lines

Line ItemAmount
Salaries, Compensation, and Employee Benefits$554,700
Other Expenses$64,557
Grants and Similar Amounts Paid$0
Professional Fundraising Fees$0
Total Fundraising Expense$0

Functional Expense Allocation

Line ItemProgramManagementFundraisingTotal
Current Officers, Directors, Trustees, and Key Employees$62,364$203,201-$265,565
Other Salaries and Wages$245,309--$245,309
Payroll Taxes$26,278$17,548-$43,826
Fees for Services Other$32,082$3,035-$35,117
Office Expenses-$16,057-$16,057
Insurance-$4,318-$4,318
Fees for Services Accounting-$2,681-$2,681
Conferences and Meetings-$2,063-$2,063
Travel-$1,274-$1,274
Other Expenses$356$2,673-$356
Interest-$18-$18
Total Functional Expenses$366,389$252,868$0$619,257
Fundraising, Events, and Gaming
Fundraising activities
No
Gaming activities
No
Professional fundraiser used
No

Fundraising and Gaming Totals

Line ItemAmount
Professional Fundraising Fees$0
Political and Lobbying Activity
Political campaign activity
No
Lobbying activity
No
Subject to proxy tax
No
Insider Transactions and Loans

Loans and Receivables

Line ItemBeginningEndChange
Receivables from Disqualified Persons-$0-
Receivables from Officers, Directors, Trustees, and Key Employees-$0-
Governance and Compliance

Governance Checklist

Compiled or reviewed by an accountant
No
Annual disclosure for covered persons
Yes
Backup withholding compliance
No
Business relationship with 35% controlled entity
No
Business relationship with family members
No
Business relationship with organization members
No
Material changes to governing documents
No
Compensation from other sources disclosed
No
CEO compensation reviewed
Yes
Other officer compensation reviewed
Yes
Conflict-of-interest policy
Yes
Audited financial statements prepared
No
Key decisions subject to board approval
No
Management duties delegated
No

Governance Explanations

Form 990, Part VI, Section A, Line 2

“Zvezdelina Stankova (CEO) and Dmitri Mironov (Board member) are married.”

Form 990, Part VI, Section A, Line 8B

“The organization does not have committees with authority to act on behalf of the governing body.”

Form 990, Part VI, Section B, Line 11B

“Form 990 is reviewed by the board. It is sent through email for review. All comments are sent by the board, then the board votes to accept the form.”

Form 990, Part VI, Section B, Line 12C

“Any conflict of interest is disclosed to the Board of Trustees of UMCF. Violations of the Conflicts of Interest Policy will result in the Board taking appropriate disciplinary and corrective action.”

Form 990, Part VI, Section B, Line 15A

“Compensation of all the officers, employees, and independent contractors is approved by the Board.”

Form 990, Part VI, Section B, Line 15B

“Compensation of the officers and key employees is described in the written employment contract and approved by the Board.”

Form 990, Part VI, Section C, Line 19

“Organization's governing documents, policies and financial statements are available upon request.”

Filing and Contact Details

Filer

Filer Name
United Math Circles Foundation
EIN
46-3636266
Phone
3413338921
Address
5426 Hillside Ave, El Cerrito, CA 94530

Signing Officer

Name
Laura Givental
Title
CEO
Signed
2025-11-13
Discuss with paid preparer
Yes

Organization Details

Principal Officer
Zvezdelina Stankova
Formed
2013
Legal Domicile
CA
Voting Board Members
12
Independent Board Members
8
Employees
46
Volunteers
70

Preparer

Firm
Iryna AC
Address
1000 Broadway Ste 200-C, Oakland, CA 94607
Preparer
Kostyantyn Oreshkov EA
Phone
5104679506
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IRS990/MissionDesc0The purpose of the United Math Circles Foundation (UMCF) is to enrich the mathematical education and to advance mathematical knowledge and skills among the students in grades 1 to 12, at the Berkeley Math Circle-Upper, Berkeley Math Circle-Elementary, San Jose Math Circle, and any other circles and similar programs that fall under its organizational and financial umbrella, and to carry on other charitable and educational activities associated with this goal. The UMCF facilitates mathematical circles and similar programs to emulate famous Eastern European models, draw kids to mathematics, prepare them for mathematical contests, introduce them to the wonders of beautiful mathematical theories, and encourage them to undertake future careers linked with mathematics, whether as mathematicians, mathematics educators, economists, or business entrepreneurs. The UMCF programs aim at providing an interaction media and stimulating environment, both encouraging further involvement from students al
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IRS990/ProgSrvcAccomActy2Grp/Desc0BMC Upper is the after-school math program that has 893 students enrolled 5th - 12th grade studying to become math scientists, educators, etc.BMC: 5 levels meet once a week for an average of 1.75 hours each week for two semesters of 15 weeks each, including two final colloquiums. MTRW: 4 levels meet once a week for 3hrs, split into 1hr topics for two semesters of 15 weeks each.
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IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt0Zvezdelina Stankova (CEO) and Dmitri Mironov (Board member) are married.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt1The organization does not have committees with authority to act on behalf of the governing body.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt2Form 990 is reviewed by the board. It is sent through email for review. All comments are sent by the board, then the board votes to accept the form.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt3Any conflict of interest is disclosed to the Board of Trustees of UMCF. Violations of the Conflicts of Interest Policy will result in the Board taking appropriate disciplinary and corrective action.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt4Compensation of all the officers, employees, and independent contractors is approved by the Board.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt5Compensation of the officers and key employees is described in the written employment contract and approved by the Board.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt6Organization's governing documents, policies and financial statements are available upon request.
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc0Form 990, Part VI, Section A, Line 2
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc1Form 990, Part VI, Section A, Line 8b
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc2Form 990, Part VI, Section B, Line 11b
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc3Form 990, Part VI, Section B, Line 12c
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc4Form 990, Part VI, Section B, Line 15a
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc5Form 990, Part VI, Section B, Line 15b
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc6Form 990, Part VI, Section C, Line 19
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