EIN 46-1813949

Mathematical Staircase

IRS 501(c) type
Num. employees
Year formed
Most recent tax filings
NTEE code, primary
Mathematical Staircase aims to educate mathematically talented secondary and tertiary students in mathematical thinking and writing through summer programs. The organization also includes MathILy-Er, with slightly younger students and six staff members, and MathILy-EST, a research experience for beginning college students. MathILy-Er had 31 enrolled students for a 5-week program while MathILy-EST had 10 enrolled students for an 8-week program.
Total revenues
Total expenses
Total assets
Num. employees

Program areas at Mathematical Staircase

MathILy: a residential summer program for mathematically gifted high-school students. Number of students enrolled was 44 in a 5-week program of courses, presentations and leisure activities. Eight trainees (staff members) also benefitted.
MathILy-EST: A Research Experience for Undergraduates (REU) focused on beginning college students. Number of students enrolled was 10 in an 8-week program focused on a program of research, presentations, interactions with the MathILy students and leisure activities.
MathILy-Er: Similar to MathILy with slightly younger students and who are earlier in their mathematical development. Number of students enrolled was 31 in a 5-week program of courses, presentations and leisure activities. Six trainees (staff members) also benefitted.
FaBraC a stand-alone course offered to students who have completed the MathILy summer program and who are interested in studying additional mathematical topics. Eight students were enrolled.

Who funds Mathematical Staircase

Grants from foundations and other nonprofits
Fidelity Investments Charitable Gift FundFor Grant Recipient's Exempt Purposes$11,451
American Mathematical Society (AMS)Epsilon Fund - Annual Support$9,000
Powers-Wolfe Charitable TrustGeneral Purpose$2,500
...and 1 more grant received

Personnel at Mathematical Staircase

Joan M. BelcastroTreasurer$0
Dr. Hannah AlpertBoard Member$4,328
Sarah-Marie BelcastroPresident and Chair of the Board$39,114

Financials for Mathematical Staircase

RevenuesFYE 12/2022
Total grants, contributions, etc.$143,485
Program services$351,389
Investment income and dividends$0
Tax-exempt bond proceeds$0
Royalty revenue$0
Net rental income$0
Net gain from sale of non-inventory assets$0
Net income from fundraising events$0
Net income from gaming activities$0
Net income from sales of inventory$0
Miscellaneous revenues$0
Total revenues$494,874

Form 990s for Mathematical Staircase

Fiscal year endingDate received by IRSFormPDF link
2022-122023-04-18990View PDF
2021-122022-04-21990View PDF
2020-122021-05-24990View PDF
2019-122021-03-25990View PDF
2018-122019-06-17990View PDF
...and 4 more Form 990s

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Data update history
December 25, 2023
Received grants
Identified 2 new grant, including a grant for $9,000 from American Mathematical Society (AMS)
June 16, 2023
Posted financials
Added Form 990 for fiscal year 2022
June 13, 2023
Posted financials
Added Form 990 for fiscal year 2021
May 21, 2023
Received grants
Identified 1 new grant, including a grant for $5,040 from American Mathematical Society (AMS)
August 18, 2021
Posted financials
Added Form 990 for fiscal year 2020
Nonprofit Types
SchoolsEducational service providersCharities
Partially liquidatedReceives government fundingTax deductible donations
General information
231 W Franklin St
Holyoke, MA 01040
Metro area
Springfield, MA
Hampden County, MA
Website URL
(720) 771-6428
IRS details
Fiscal year end
Taxreturn type
Form 990
Year formed
Eligible to receive tax-deductible contributions (Pub 78)
NTEE code, primary
B90: Educational Services
NAICS code, primary
6116: Other Schools and Instruction
Parent/child status
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