What Westridge School does

Westridge School is a private, independent, nonprofit day school for college-bound girls in grades 4–12, operating from a single campus at 324 Madeline Drive in Pasadena, California. Founded in 1913 by Mary Lowther Ranney, the school enrolls approximately 550 students served by an 8:1 student-teacher ratio, an average class size of 15, and a faculty in which 70% hold advanced degrees. Its academic portfolio spans Lower, Middle, and Upper School programs with notable offerings in STEM (four-year computer science and aerospace engineering tracks), Westridge Advanced Courses, Visual & Performing Arts, and Tiger Athletics (10 Middle School and 13 Upper School competitive sports). Specialized programs include the STEAMWork Design Studio, Research in Science (with Caltech and Children's Hospital), Global Scholars, Discovery Week, Community Action Project, Human Development curriculum, and Peer-to-Peer Counseling.

The school's business model is tuition-driven, with annual tuition covering approximately 87% of per-student educational costs; the remainder is funded through charitable contributions. Westridge operates a tiered Annual Fund (Westridge Fund) that raises over $1 million per year, a Forever Fund endowment that recently reached a $1 million milestone, and a structured recognition program with giving circles ranging from $3,000 to $100,000+. Distribution is direct-to-consumer through on-campus visits, virtual tours, and an online application process. The school's primary customer segments are families seeking all-girls college-preparatory education and its 5,400+ alumnae across 50 states and 30 countries, of whom 450+ contributed in the last fiscal year. Technology infrastructure is largely administrative and educational-support oriented — Finalsite for web, Veracross for parent/student portals — rather than proprietary platform technology.

The institution also operates the Partnership for Success (PFS) summer enrichment program in collaboration with the Pasadena Unified School District and four other local independent schools, hosting approximately 400 public-school students annually. As a 501(c)(3) nonprofit governed by a 24-member Board of Trustees with no parent company, ownership changes, or external equity holders, Westridge has remained structurally stable for over 110 years.

Name

Westridge School

Legal name

Westridge School for Girls

Website

https://westridge.org

Company type

Private

Founded year

1913

Operating status

Operating

Headcount range

51–100 employees

Short description

Westridge School is a private, nonprofit, all-girls day school in Pasadena, California, serving approximately 550 students in grades 4–12 through a tuition-funded college-preparatory program supplemented by an annual giving fund and endowment.

Ownership category

akta.pro rank

Headquarters

HQ city

Pasadena

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Others, Infrastructure, Marketing or Sales

Revenue model

1. Tuition: Primary revenue source. Tuition covers approximately 87% of the cost to educate a student, with families paying tuition and fees for educational services.
2. Westridge Fund (Annual Giving): Annual fund raising over $1 million each year supporting faculty salaries, financial aid, programs and activities, and facilities maintenance.
3. Forever Fund (Endowment): Endowment funds established to provide financial aid in perpetuity. Classes raising $100,000+ receive recognition; reached $1 million milestone for endowment.
4. Alumnae Giving: Donations from alumnae to both the Westridge Fund and endowment supporting financial aid and academic programming.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

Westridge School provides a college-preparatory day school education for girls in grades 4-12 at its Pasadena, California campus. The school delivers a unified curriculum spanning Lower School (grades 4-6), Middle School (grades 7-8), and Upper School (grades 9-12), with specialized programs in STEM, visual and performing arts, athletics, advanced coursework beyond AP, human development, and service learning. Enrollment is approximately 550 students supported by an 8:1 student-teacher ratio and average class size of 15, with tuition funding the educational services and annual donations supplementing operations.

Product overview

Westridge School is a private all-girls school offering a unified educational program spanning Lower School (Grades 4-6), Middle School (Grades 7-8), and Upper School (Grades 9-12). The school provides a comprehensive academic portfolio including STEM programs, Advanced Courses, Visual & Performing Arts, and Tiger Athletics. Specialized programs include the STEAMWork Design Studio for hands-on engineering, Research in Science partnerships with Caltech, the Global Scholars interdisciplinary program, Community Action Project service learning, Discovery Week experiential learning, Human Development curriculum, and Peer-to-Peer counseling. The school also partners with Pasadena Unified School District through the Partnership for Success program.

Differentiator

Problem solved

Functional benefit

Products and services

• Lower School (Grades 4-6) Foundational academic program for grades 4-6 designed as a joyful, intellectual adventure where students develop as enthusiastic learners and confident individuals through age-appropriate curriculum.
• Middle School (Grades 7-8) Project-centered, interdisciplinary curriculum for grades 7-8 that builds community and supports student development as they transition toward Upper School.
• Upper School (Grades 9-12) Student-driven coursework for grades 9-12 offering advanced courses, research opportunities, and college counseling as girls discover their path and pursue postsecondary placement.
• Visual & Performing Arts Programs in music, theatre, dance, and visual arts fostering curious, confident art makers through creative discovery and technical proficiency across various media.
• Tiger Athletics Athletic program starting with recreational tournaments in Lower School, expanding to 10 competitive sports in Middle School and 13 in Upper School, emphasizing discipline, dedication, and teamwork.
• College Counseling College counseling program supporting Upper School students in selecting, applying to, and matriculating at colleges with documented outcomes including placements across 16 states, D.C., and 4 countries.
• Partnership for Success (PFS) Summer Enrichment Five-week intensive summer enrichment program in collaboration with Pasadena Unified School District serving approximately 400 public-school students chosen by principals based on academic promise and financial need; Westridge hosts female PFS students in 5th and 6th grade for math and verbal skill enrichment.
• Summer Camps Summer camp programs hosted at the Westridge campus, expanding athletics and enrichment offerings during the school break.

Quantifiable outcome

• 8:1 student-teacher ratio
• +4 more outcomes

Named customers3 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Six partnerships are on record, tiered core, flagship and minor.

• Pasadena Unified School DistrictcoreStrategic or Co-development PartnerPartnership for Success (PFS) collaboration provides intensive five-week summer enrichment program to approximately 400 public-school students identified by principals based on academic promise and financial need. Westridge hosts female PFS students in 5th and 6th grade for math and verbal skill enrichment.
• Four Local Independent SchoolscoreStrategic or Co-development PartnerCollaboration with four local independent schools as part of Partnership for Success (PFS) program to provide educational enrichment opportunities for public-school students in Pasadena.
• California Institute of Technology (Caltech)flagshipStrategic or Co-development PartnerResearch partnership providing Upper School Research in Science elective students hands-on research opportunities with university labs and researchers, complemented by weekly on-campus seminar classes.
• Children's HospitalflagshipStrategic or Co-development PartnerResearch partnership providing Upper School Research in Science elective students hands-on research opportunities at the hospital, complemented by weekly on-campus seminar classes on scientific writing and presentation.
• Hope GardensminorStrategic or Co-development PartnerNonprofit organization focused on helping women regain independence through long-term rehabilitation programs and support services; partnered with von Holzhausen brand (founded by alumna Vicki von Holzhausen '90).
• AppleflagshipChannel Partner/ Reseller/ Distributorvon Holzhausen brand (founded by alumna Vicki von Holzhausen '90) created partnership with Apple to produce tech accessories available in all Apple stores. von Holzhausen produces luxury accessories using animal-free sustainable leather alternative.

Scale indicators11 records

Recent moves1 record

Expansion highlights5 records

Direct peers

• Polytechnic School: Private, independent K-12 day school located in Pasadena, directly competing for the same Pasadena-area families across grades 4-12 with a co-ed college-prep model. Same donor pool, same geographic feeder, and similar tuition tier make this Westridge's closest direct competitor.
• Flintridge Preparatory School: Independent college-prep day school serving grades 7-12 in nearby La Cañada Flintridge. Competes head-to-head with Westridge for LA-area college-bound families and operates at similar tuition levels with strong STEM and athletics programming.
• Mayfield Senior School: All-girls Catholic college-prep school in Pasadena serving grades 9-12. The most direct same-gender competitor in Westridge's immediate geographic market, competing for the same college-bound families and drawing from overlapping feeder schools.
• Flintridge Sacred Heart Academy: All-girls Catholic college-prep school in La Cañada Flintridge serving grades 9-12. Competes directly with Westridge for college-bound girls across the Pasadena/LA region with similar tuition levels and college-counseling offerings.
• The Archer School for Girls: Independent all-girls college-prep day school in Los Angeles serving grades 6-12. A peer in mission and model (gender-specific empowerment, college prep, STEM emphasis) and competes for the same broader LA families willing to commute.
• Marlborough School: Independent all-girls college-prep day school in Los Angeles serving grades 7-12. Comparable tuition tier, similar mission around girls' empowerment and leadership, and similar alumnae-network-driven fundraising model.

Broad incumbents

• Harvard-Westlake School: One of the largest and most prestigious independent K-12 day schools in Los Angeles. As a co-ed incumbent with massive endowment capacity and national brand recognition, it sets the competitive ceiling that Westridge must differentiate against.
• Chadwick School: Independent K-12 day school on the Palos Verdes Peninsula. Competes for college-bound LA families with strong STEM, arts, and athletics programs and a comparable tuition profile.
• Buckley School: Independent K-12 day school in Sherman Oaks. Comparable college-prep positioning, similar tuition band, and overlapping draw from LA's west-side and Valley families seeking selective private education.
• Crossroads School: Independent K-12 day school in Santa Monica known for progressive, inquiry-based college-prep instruction. Competes for mission-driven LA families willing to pay premium tuition for distinctive pedagogical models.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat6 records

Key risks5 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/westridgetube
• Facebookfacebook.com/westridgeschool
• LinkedInlinkedin.com/company/westridge-school
• Instagraminstagram.com/westridgeschool

Revenue estimate

Valuation estimate

Number of profiles

Profiles19 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Westridge School