Girls' Angle

What Girls' Angle does

Girls' Angle is a 501(c)(3) nonprofit founded in 2007 in Cambridge, Massachusetts, dedicated to supporting girls in grades 5-12 who are interested in mathematics. Its core programs include a weekly in-person math club at its Cambridge facility, year-round Math Collaborations delivered at schools and libraries (including Buckingham, Browne & Nichols; Pollard; McGill; and sites in NY, NJ, VA, PA, CA, London, and Montreal), periodic SUMIT events that bring together 30+ PhD mathematicians, Math Contest Prep courses at the Microsoft NERD Center, a Free Book Program, and the bimonthly Girls' Angle Bulletin. The organization is led by founder C. Kenneth Fan with a staff that includes Dr. Grace Work as the first full-time Head Mentor, supported by an advisory board drawn from MIT, Harvard, Stanford, Boston College, UCSD, University of Washington, UT Austin, and Northwestern.

The technology footprint is modest: original interactive HTML5 canvas apps (e.g., Inscribed Equilateral Hexagons), the WIM video series, a standard organizational website, and the print/digital bimonthly Bulletin now spanning 19+ volumes. The core pedagogy is human-led, with active mentorship by PhD mathematicians and graduate students; the digital products extend reach rather than substitute for the in-person model. Pivots include a 2020 transition to virtual programming in response to COVID-19 and ongoing expansion of the digital content library.

Revenue mechanics are those of a small nonprofit: unrestricted and restricted grants from institutional funders (Microsoft Research, MathWorks, Mathenaeum Foundation), individual donations, sponsorship, Bulletin subscriptions, modest course fees ($495-$1,500 for Math Contest Prep), membership fees ($50/year), club fees ($240-$720/year), SUMIT event tickets ($75), and commissioned content services. No audited financials are disclosed. Public positioning has been elevated through mentions in the New York Times, MAA Focus, AMS, AWM, and MSRI, and through participation in the 2022 World Meeting of Women in Mathematics.

Name

Girls' Angle

Legal name

Girls' Angle, Inc.

Website

https://girlsangle.org

Company type

Private

Founded year

2007

Operating status

Operating

Headcount range

1–10 employees

Short description

Girls' Angle is a 501(c)(3) nonprofit founded in 2007 in Cambridge, MA, operating an in-person math club and school-based Math Collaborations for girls in grades 5-12, supplemented by the bimonthly Bulletin magazine, WIM video series, and PhD mathematician mentorship.

Ownership category

akta.pro rank

Product category

Math Education and STEM Enrichment (Nonprofit)

NAICS

All Other Miscellaneous Schools and Instruction (611699), All Other Schools and Instruction (61169), Exam Preparation and Tutoring (611691)

SIC

Services-Educational Services (8200)

akta.pro primary industry

Math Circles & Mathematical Communities (EDAMAEAC)

akta.pro secondary industries

School-Based Math Clubs & League Programs (EDAMAEAI), Problem-Solving & Enrichment Classes (Non-competition) (EDAMAEAB), Math Competitions & Tournament Organizers (EDAMAEAH), Competition Coaching & Training Programs (AMC/AIME/USAMO/MathCounts) (EDAMAEAA)

Keywords

• Math education programs
• Math club mentorship
• STEM enrichment girls
• Collaborative math workshops
• Math contest preparation

Headquarters

HQ city

Cambridge

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. Club Membership and Meeting Fees: Annual membership fee of $50 covers email mentor access, a 1-year print subscription to the Bulletin, and discounts on all offerings. Club access fees are $20/meet or $240/semester for members ($480/year), and $30/meet or $360/semester for non-members ($720/year). Members receive a 10% discount for semester advance payment.
2. Bulletin Print Subscriptions and Sponsorships: Print subscriptions to the bimonthly Girls' Angle Bulletin are available for $36/year. Sponsorship tiers: Gold ($3000+), Silver ($1000-2999), Bronze ($100-999), Subscribing Sponsor ($50-99). Electronic version is free.
3. Math Contest Prep Courses: Fee-based math contest preparation courses held at the Microsoft NERD Center. Summer session $495; academic year $800/semester or $1500/full year. Members and Microsoft affiliates receive 10% discount.
4. SUMIT Event Registration: SUMIT is a large-scale Math Collaboration for girls in grades 6-11. Registration fee is $75, waived for students demonstrating financial need.
5. Donations and Grants: Girls' Angle is a 501(c)(3) nonprofit organization. Revenue includes tax-deductible donations from individuals and grants from foundations including Microsoft Research, Mathenaeum Foundation, MathWorks, Science House, Google, Adobe, Akamai Foundation, Draper Laboratories, and Big George Ventures.
6. Content Production and Custom Services: Girls' Angle creates custom math educational content (puzzles, problem sets, activities, instructional articles, games) for individuals, homeschoolers, educators, camps, and organizations on a commissioned basis. Also offers content checking services for mathematical content.

Pricing tiers

Go-to-market motion1 record

Distribution channels7 records

Marketing channels11 records

Core offering

Girls' Angle runs a nonprofit math club and math education program for girls in grades 5-12, providing individualized in-person mentorship by women mathematicians, fully collaborative Math Collaboration events at schools and libraries, the large-scale SUMIT event series co-hosted with MIT, a bimonthly Girls' Angle Bulletin magazine, the Women in Mathematics video series, and Math Contest Prep courses. The organization also offers custom math content production, content checking services, and a Free Book Program to extend its math enrichment mission.

Product overview

Girls' Angle is a nonprofit math education organization founded in 2007, operating as a single unified offering centered on the Girls' Angle Club for girls in grades 5-12. The core portfolio consists of in-person club meetings with women mentors, complemented by signature Math Collaborations and the large-scale SUMIT events. Educational media products include the bimonthly Girls' Angle Bulletin magazine and the Women in Mathematics Video Series. Additional services include Math Contest Prep courses, a Free Book Program, Content Production and Checking services, and Community Outreach programs. All offerings share a common mission to foster girls' interest in mathematics through collaboration, mentorship, and hands-on engagement rather than competition.

Differentiator

Problem solved

Functional benefit

Brands

• SUMIT: Large-scale collaborative math treasure hunt events for girls in grades 6-11
• Math Collaborations
• Girls' Angle Bulletin
• Women in Mathematics Video Series (WIM)

Products and services

• The Club (Weekly Math Club) The flagship in-person math club for girls in grades 5-12, providing individualized math instruction from women mathematician mentors, hands-on activities, and a Support Network of professional women who use math in their careers. Club meets most Thursdays 3:45-5:45 PM in Cambridge, MA.
• Math Collaborations

Quantifiable outcome

• Over 5,000 girls have developed math skills and confidence with Girls' Angle since 2007.
• +3 more outcomes

Named customers10 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• MIT (Undergraduate Society of Women in Mathematics)coreStrategic or Co-development PartnerMIT's Undergraduate Society of Women in Mathematics co-hosts SUMIT events with Girls' Angle. SUMIT 2012 and 2013 took place at MIT. MIT Mathematics Department is a regular sponsor of SUMIT events.
• Broad InstituteminorStrategic or Co-development PartnerSUMIT 2018 was hosted at the Broad Institute in Cambridge, MA. The Broad Institute served as event host and provided the venue.
• Buckingham Browne & Nichols Middle SchoolminorStrategic or Co-development PartnerBB&N Middle School hosted SUMIT 2019 and has hosted 21+ Math Collaborations. The school is a key partner in delivering Girls' Angle programs to its students.
• American Mathematical Society (AMS)minorOthersAMS donated to Girls' Angle in 2008 and has provided corporate sponsorship for SUMIT events. Girls' Angle is referenced on the AMS website. Also, Girls' Angle presented at the MIT Women in Mathematics conference organized by AMS.
• Mathematical Sciences Research Institute (MSRI)minorOthersMSRI made a generous donation to Girls' Angle in May 2008 and sponsors SUMIT events. Girls' Angle is linked on the MSRI website.
• Association for Women in Mathematics (AWM)minorOthersGirls' Angle is linked on the AWM website. AWM newsletter featured Girls' Angle in the July/August 2008 issue.
• Science Club for GirlsminorOthersGirls' Angle maintains a link to Science Club for Girls on its website. The two organizations have collaborated, with Girls' Angle presenting at Science Club for Girls events.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Math Prize for Girls: MIT-hosted math competition and Games Nights exclusively for girls. Girls' Angle runs Math Collaboration activities at Math Prize for Girls Games Nights, reflecting highly overlapping audience and mission.
• Art of Problem Solving: Math enrichment platform and curriculum provider serving advanced middle and high school students with courses, competitions, and community. Comparable to Girls' Angle in targeting the same age band for supplemental math enrichment beyond standard curricula.
• National Girls Collaborative Project: NSF-funded network catalyzing girl-serving STEM programs across the US. Comparable mission of expanding girls' participation in STEM through collaboration among program providers; Girls' Angle fits its member profile.
• PROMYS (Program in Mathematics for Young Scientists): Boston University-based summer math program for high school students emphasizing problem-solving and collaboration. Comparable to Girls' Angle in offering math enrichment at the K-12 bridge level; the homepage references a Girls' Angle/PROMYS Girls' Math Circle collaboration.
• Science Club for Girls: Cambridge-area nonprofit offering STEM clubs for girls with a strong mentor model. Girls' Angle lists it as a partner and link exchange, and the organizations share comparable mission, gender focus, and Cambridge geography.
• Expanding Your Horizons Network: Network of STEM conferences for middle and high school girls featuring hands-on workshops and female role models. Comparable in delivering girl-targeted STEM programming with a mentor/role-model structure.

Broad incumbents

• MATHCOUNTS: National middle-school math competition organization with school- and chapter-based programs. Comparable in delivering math enrichment programming at scale to the same 5-12 demographic, though competition-focused rather than Girls' Angle's collaborative model.
• Mathnasium: Franchised small-group math learning center network with thousands of locations. Comparable small-group math instructional format and recurring-meet cadence, though commercial and gender-neutral rather than nonprofit girls-only.
• Khan Academy: Large-scale free online math (and other subject) education platform with personalized learning. Comparable as a freely accessible supplemental math resource, though gender-neutral and serving a much broader K-12+ audience.

Emerging players

• Brilliant: Online math and science learning platform with interactive problem sets and courses. Comparable as a math enrichment offering targeting motivated K-12 and adult learners, with overlapping self-serve digital distribution.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/user/girlsangle
• Facebookfacebook.com/230324049450

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles20 records

Funding overview

Funding rounds

Investors

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M&A

Investments

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Frequently asked questions about Girls' Angle