Our Lady of Sion College

What Our Lady of Sion College does

Our Lady of Sion College is a Catholic secondary school for girls located at 1065 Whitehorse Road, Box Hill, Victoria, Australia. Founded in 1928 by the Sisters of Our Lady of Sion with 15 students, the school now teaches approximately 950 students across Years 7 to 12 with around 120 teaching and support staff, yielding a low student-to-staff ratio that underpins its claim of personalised learning. The school delivers the Victorian Curriculum, including the Victorian Certificate of Education (VCE) and VCE Vocational Major pathways, supported by enrichment programs such as the Denise O'Hara Science Academy (established 2012), the Instrumental Music Program, the FIRE Carrier reconciliation program, and international study-tour partnerships with sister schools in Italy, France, China and America. Senior-secondary outcomes reported for 2025 include a median ATAR of 81.2, with 20.32% of students achieving ATARs above 90 and perfect study scores of 50 in Legal Studies and Art Creative Practice.

The college operates as a single-campus, direct-to-consumer institution whose core "product" is tuition and pastoral services funded by annual fees and levies, with a portion allocated to a Building Improvement Program for capital works. Core technology consists of the SEQTA learning management system (with SEQTA Learn for students, SEQTA Engage for parents, and SEQTA Teach for staff), complemented by Microsoft Office 365 for staff email and Google Workspace for student email. There is no proprietary technology product and no monetised platform offering. Facilities include the recently completed Ratisbonne Discovery Centre (STEAMD and Administration Centre, 2025), Veritas Learning Centre (2026), Colmar Centre (2025), Ein Karem Centre (2025), Notre Dame Centre (2017), and the 350-seat Miriam Performing Arts Centre.

On 10 June 2025 the Sisters of Our Lady of Sion formally entrusted the ministry to Mercy Partners, with Mercy Partners Limited becoming the sole member of the operating entity. Day-to-day governance rests with a Board of Directors meeting eight times per year under Principal Rebecca Cetrola. The school remains subject to the enrolment guidelines of the Archdiocese of Melbourne, operates as a nonprofit educational institution, and does not publicly disclose financial figures. Go-to-market is direct: families enrol via an online application, supported by Talk and Tours throughout the year, an annual Open Day in March, an Information Evening in May, and Prospectus distribution; the Principal personally visits Catholic primary schools in priority parishes to meet prospective Year 6 students.

Name

Our Lady of Sion College

Legal name

Our Lady of Sion College

Website

https://sion.catholic.edu.au

Company type

Private

Founded year

1928

Operating status

Operating

Headcount range

101–250 employees

Short description

Our Lady of Sion College is a Catholic all-girls secondary school in Box Hill, Victoria, Australia, educating approximately 950 students across Years 7 to 12 with around 120 staff. The college offers VCE pathways, STEM enrichment, performing arts, and international sister-school programs, and is operated under Mercy Partners.

Ownership category

akta.pro rank

Headquarters

HQ city

Box Hill

HQ country

Australia

HQ region

Oceania

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. Tuition Fees and Levies: Annual tuition fees and levies are charged to cover the unfunded component of school expenditure. A component in the fee structure is used for capital purposes to fund the Building Improvement Program, new computers, plant and other equipment.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels9 records

Core offering

Our Lady of Sion College is an all-girls Catholic secondary school delivering Years 7 to 12 education to approximately 950 students on its single Box Hill campus. It offers the Victorian Certificate of Education (VCE) and VCE Vocational Major pathways, religious education, STEM enrichment, instrumental music, performing arts, interschool sport through Girls Sport Victoria, and international study tours and sister school partnerships in Italy, France, China and America. Families access the school through an annual direct-enrolment application process and pay tuition fees and levies that fund operations and the Building Improvement Program.

Product overview

Our Lady of Sion College operates as a single-campus Catholic secondary school for girls in Years 7-12, offering a unified educational program rather than a modular platform structure. The core educational offering includes the SEQTA Learning Management System for managing learning delivery and parent communication, complemented by specialized programs including the Denise O'Hara Science Academy for STEM enrichment and the Instrumental Music Program. The college has undergone significant infrastructure expansion, recently completing the Ratisbonne Discovery Centre (STEAMD hub), Veritas Learning Centre (library and makerspace), Colmar Centre (Year 10 facility), and Ein Karem Centre (counselling and learning diversity). Students participate in Girls Sport Victoria (GSV) competitions, the Miriam Performing Arts Centre programs, international partnership opportunities, and the FIRE Carrier reconciliation program. The senior program includes VCE and VCE Vocational Major pathways with strong academic outcomes.

Differentiator

Problem solved

Functional benefit

Brands

• Denise O'Hara Science Academy: A unique program for students in Years 9 and 10 to participate in a range of co-curricular science activities, and to encourage excellence in the field of science.
• Notre Dame Centre
• Ratisbonne Discovery Centre
• Veritas Learning Centre
• Miriam Performing Arts Centre

Products and services

• VCE Academic Program Victorian Certificate of Education (VCE) and VCE Vocational Major (VCE VM) program for Years 11-12 at Our Lady of Sion College. The college reports strong academic outcomes with 2025 median ATAR of 81.2, 20.32% of students achieving ATARs above 90, and perfect study scores of 50 in Legal Studies and Art Creative Practice.
• Denise O'Hara Science Academy STEM extension program for Years 9 and 10 students at Our Lady of Sion College, offering co-curricular science activities to encourage excellence in science. Activities include The University of Melbourne's Conco Phillips Science Experience, 3D Modelling at Quantum Victoria, ACMI's Code Breakers: Girls in Gaming, and experiments at La Trobe University.
• Instrumental Music Program Comprehensive instrumental music tuition and ensemble program at Our Lady of Sion College, offering students the opportunity to develop skills in listening, playing and performance. Includes individual instrumental lessons and participation in ensembles such as Jazz Band, Concert Band, and choirs, with separate fees published annually.
• International Partnership Programs Study tours and exchange programs available to Years 10-12 students at Our Lady of Sion College, including study tours to France, New Caledonia, China, and Italy, along with sister school partnerships in Italy, France, China, and America, designed to develop language skills and cultural understanding.

Quantifiable outcome

• 20.32% of students achieved ATAR above 90
• +4 more outcomes

Named customers1 record

Segments2 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

Feature3 records

Partnerships

Six partnerships are on record, tiered core and minor.

• Sister Schools in ItalycoreStrategic or Co-development PartnerInternational partnership program providing cultural exchange, language development, and study tour opportunities. Students experience culture, customs, daily life, and school with host students, fostering lifelong international friendships.
• Sister Schools in FrancecoreStrategic or Co-development PartnerInternational partnership program providing French language immersion experiences through study tours and student exchanges with sister schools.
• Sister Schools in ChinacoreStrategic or Co-development PartnerInternational partnership program providing Chinese language and cultural immersion through study tours and partnership exchanges.
• Sister Schools in AmericacoreStrategic or Co-development PartnerInternational partnership program providing cultural exchange opportunities with American partner schools.
• Girls Sport Victoria (GSV)coreOthersThe college is a proud member of Girls Sport Victoria, participating in weekly sports competitions across multiple sports including softball, netball, hockey, badminton, soccer, volleyball, cricket, and basketball.
• Bob Stewart (Uniform Supplier)minorOthersThe college uniform is available for purchase from Bob Stewart, located at 201-211 High St, Kew. Uniform price list available on the Bob Stewart website.

Scale indicators4 records

Recent moves11 records

Expansion highlights4 records

Direct peers

• Siena College: Catholic Dominican girls' school in Camberwell, Melbourne, offering Years 7-12 with VCE, sport, and faith-based programs. Closest Catholic girls' school peer in geographic proximity to Our Lady of Sion College.
• Melbourne Girls Grammar School (MGGS): Independent Anglican girls' school in South Yarra, Melbourne, offering Years 7-12 with VCE, extensive co-curricular programs, and strong academic outcomes. Direct competitor in the premium girls' school segment.
• Fintona Girls' School: Independent girls' school in Balwyn, Melbourne, offering Years 7-12 with VCE, sport, music, and academic programs. Closely comparable in scale, location, and academic positioning to Our Lady of Sion College.
• Korowa Anglican Girls' School: Independent girls' school in Glen Iris, Melbourne, offering Years 7-12 with VCE, sport, arts, and leadership programs. Direct competitor in the eastern Melbourne girls' school market.
• Genazzano FCJ College: Catholic day and boarding girls' school in Kew, Melbourne, offering Years 7-12 with VCE, music, sport, and international programs. Direct competitor for Catholic girls' education in Melbourne's eastern suburbs.
• Methodist Ladies' College (MLC): Large independent girls' school in Kew, Melbourne, offering Years 7-12 with VCE/IB, strong academic outcomes, sport, music, and international exchange. Comparable scale and offering to Our Lady of Sion College.
• Ruyton Girls' School: Independent girls' school in Kew, Melbourne, covering Years 7-12 with VCE, sport, arts, and leadership programs. Competes for similar families in the eastern suburbs Catholic/independent girls' market.
• Loreto Mandeville Hall: Independent Catholic girls' school in Toorak, Melbourne, serving Years 7-12 with strong VCE results and a focus on faith, leadership, and academic excellence. Direct competitor in the premium Catholic girls' segment.
• Presbyterian Ladies' College (PLC): Major independent girls' school in Burwood, Melbourne, offering Years 7-12 with VCE, boarding, music, sport, and global exchange programs. Direct competitor in Melbourne's eastern suburbs girls' market.
• St Catherine's School: Independent girls' school in Toorak, Melbourne, offering Years 7-12 with VCE, music, sport, and leadership development. Competes for similar families in Melbourne's inner east.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xtwitter.com/SionTweets
• Facebookfacebook.com/OurLadyofSion
• Instagraminstagram.com/ourladyofsioncollege

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 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 Our Lady of Sion College