Colorado Math Circle
Nonprofit profile at a glance
- EIN
- 394809445
- IRS 990-EZ coverage
- 2025–2025
- Forms available
- Form 990-EZ 2025
- Location
- Boulder, CO, USA
- Phone
- 7206004599
- Rating
- 80
- Verdict
- STRONG
- Rating confidence
- Moderate
- Sector
- Educational Services and Schools - Other
Reported finances
- Revenue
- $50,581
- Expenses
- $29,106
- Assets
- $21,475
- Liabilities
- $0
Source: IRS Form 990-EZ. Selected filing: tax year 2025. Amounts in USD.
Leadership & pay
3 people listed
Executive titles in this filing
- Silva Chang (President, Treasurer, Co-Executive Director)
- Thomas Davids (Secretary, Co-Executive Director)
People named in this filing
- Silva Chang (President, Treasurer, Co-Executive Director)
- Thomas Davids (Secretary, Co-Executive Director)
- Xiao Zhang (Director)
Selected names, not a complete roster or a statement of current roles. Open leadership details for the complete filed list.
Source: IRS Form 990-EZ. Selected filing: tax year 2025. Names and roles reflect this filing, not necessarily current officeholders.
Overview
Mission
Math enrichment programs for K-12 students
What it reported doing in 2025
Colorado Math Circle meetings (in person and remote) and contests for 115 students in grades 6-12
Operating model
- Revenue model
- Mixed. Its operating money came from several sources; no one source provided a clear majority.
- Distribution model
- Direct operator. The filing allocates 99% of reported program-service expenses outside its grant, affiliate-payment, and member-benefit lines. This expense classification does not rule out separately announced grant awards.
The verdict
STRONG - The filed numbers largely add up and a large share of total spending goes to programs. A relatively small share of available resources goes toward mission work and total assets are small relative to annual expenses; liquid coverage is unknown.
Rating breakdown
- Financial Efficiency: 73
- Transparency & Controls: 100
- Sustainability: 67
- Growth: NotEnoughData
Detailed rating inputs
Financial Efficiency
- Mission deployment rate: 56.7%; rating input score 57
- Program expense ratio: 98.5%; rating input score 99
Transparency & Controls
- Consistency checks: 100%; rating input score 100; 51st percentile among comparable filings
- Major donor itemization: Yes; rating input score 100
Sustainability
- Operating margin: 42.5%; rating input score 87; 87th percentile among comparable filings
- Total-asset coverage ratio: 0.74; rating input score 40; 40th percentile among comparable filings
- Liabilities to assets ratio: 0; rating input score 66; 66th percentile among comparable filings
- Officer compensation ratio: 0%; rating input score 56; 56th percentile among comparable filings
Growth
- Program expense growth: Limited
- Revenue growth: Limited
- Asset growth: Limited
Details
- Where the money goes: 56.7% of revenue deployed · 98.5% of spending went to programs
- Governance: Filed governance answers
- Accomplishments: 2 filed program accomplishments · $29K in reported program spending
- Leadership: top reported pay $0 · 3 people listed
- Consistency: 9 of 9 current checks pass
- Schedules: 3 filed schedules
- Contacts: How to reach this organization
- Grant readiness: Federal tax and exclusion status, award history, and grant-maker relationships.
- People: Everyone the filings name, and which of them the filings identify by more than a name.
Key Signals
Signals prioritize questions for review. They are not findings of misconduct.
- Review — Financial Efficiency: Mission deployment rate scored 57/100.
- Moderate — Sustainability: Total-asset coverage ratio scored 40/100.
- Review — Sustainability: Officer compensation ratio scored 56/100.