Marymount International School London

What Marymount International School London does

Marymount International School London is an independent Catholic day and boarding school for girls aged 11-18, founded in 1955 and operated by the Religious of the Sacred Heart of Mary (RSHM). It is the first all-girls school in the UK to adopt the International Baccalaureate curriculum and delivers both the Middle Years Programme (MYP, Grades 6-10) and the IB Diploma Programme (IBDP, Grades 11-12). The school sits on a seven-acre garden campus in Kingston Upon Thames, Surrey, approximately 12 miles from central London, with facilities including a STEAM Hub, Chapel, sports hall, auditorium and dedicated boarding houses. It serves an international student body of 48 nationalities with 15 supported mother-tongue languages, and is licensed by UKVI to issue Confirmation of Acceptance for Studies (CAS) for international full-boarders.

The core product is a multi-year IB education delivered through small class sizes, with the Creativity, Activity, Service (CAS) programme, multilingual Extended Essay, Theory of Knowledge and bespoke College Counselling as differentiating extensions. Boarding is offered in three formats: Full Boarding, Weekly Boarding and Flexi-Boarding (one to three consecutive nights per week, with an ad-hoc £150/night rate). The school is connected to an 18-school RSHM Global Network spanning the US, Mexico, Italy, France, Portugal, Colombia and Brazil, and operates the ToucanTech-powered Marymount London Network alumnae platform serving 8,000+ alumnae across 91 countries.

Marymount generates revenue predominantly through subscription-style tuition and boarding fees paid annually in advance, with a 60/40 split or monthly School Fee Plan option. 2026-27 fees are £39,540 for day students, £64,110 for weekly boarders and £66,990 for full boarders, with a 10% sibling discount on the younger daughter's fees. Ancillary revenue comes from application (£240), acceptance (£1,800-£3,000), graduation (£840) and occasional fees, plus philanthropic donations enabled through BSUF and Transnational Giving Europe. International student recruitment is conducted via a global network of educational agents operating under the UK Agent Quality Framework, with direct family recruitment also handled through the OpenApply online admissions portal, rolling admissions, year-round private tours and open day events. The school is a registered UK charity (No. 1117786) governed by a Board of Governors and reports a 100% IB pass rate with an average of 37 points versus the international average of 29.

Name

Marymount International School London

Legal name

Marymount International School London

Website

https://marymountlondon.com

Company type

Private

Founded year

1955

Operating status

Operating

Short description

Marymount International School London is an independent Catholic day and boarding school for girls aged 11-18, delivering IB MYP and Diploma programmes from a seven-acre Kingston Upon Thames campus. It serves 48 nationalities through subscription tuition (£39,540-£66,990/year) and operates within an 18-school RSHM global network.

Ownership category

akta.pro rank

Product category

Independent Secondary Education

NAICS

Elementary and Secondary Schools (6111), Educational Support Services (611710)

SIC

Services-Educational Services (8200)

akta.pro primary industry

International/Global Curriculum Schools (IB, Cambridge, etc.) (EDAJABAG)

akta.pro secondary industries

Overseas Boarding School Enrollment & Placement (EDAIAHAA), Diploma-to-Degree / Articulation & Credit-Transfer Pathways (EDAIAJAG)

Keywords

• International baccalaureate education
• Independent girls school
• Boarding school education
• Middle years programme
• College counselling services

Headquarters

HQ city

Kingston Upon Thames

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. Tuition Fees: Annual tuition fees for day students of £39,540 (2026-27 academic year). Tuition includes full IB tuition, classroom textbooks, laboratory fees, most classroom materials, key educational trips, personal accident insurance, lunch, ESL, and learning resources.
2. Boarding Fees: Full boarding at £27,450 per year, weekly boarding at £24,570 per year, and flexi-boarding ranging from £5,610 to £16,830 depending on nights per week. Boarding includes room, board, and most weekend activities.
3. Application and Acceptance Fees: Application fee of £240 and acceptance fee of £1,800-3,000 (day vs boarding) with a refundable deposit of £300-750.
4. Graduation Fees: Graduation fee of £840 for seniors, covering graduation events. IB examination costs and optional Graduation Ball are not included.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels6 records

Core offering

Marymount International School London delivers an International Baccalaureate education for girls aged 11-18 through the Middle Years Programme (MYP) and the Diploma Programme (IBDP), accompanied by day, weekly, full, and flexi-boarding options on a seven-acre campus in Kingston Upon Thames. The offering includes college counselling, the CAS programme, specialist academic enrichment, and ESL support, supported by facilities such as the STEAM Hub, science labs, arts studios, and a chapel. A global alumnae network of 8,000+ across 91 countries extends engagement beyond graduation.

Product overview

Marymount International School London is an independent Catholic day and boarding school offering a unified educational programme built around the International Baccalaureate (IB) curriculum. The school provides two interconnected IB programmes: the Middle Years Programme (MYP) for students in Grades 6-10 and the Diploma Programme (IBDP) for Grades 11-12. Boarding options include Full Boarding, Weekly Boarding, and Flexi-Boarding, with day student places also available. Supporting offerings include the CAS programme (Creativity, Activity, Service), specialist academic programmes, university counselling, and the STEAM Hub facility. The school also operates the Marymount London Network alumnae platform for ongoing community connection and mentoring. Located on a seven-acre garden campus in Kingston Upon Thames, the school serves girls aged 11-18 with small class sizes and a holistic, student-centred approach.

Differentiator

Problem solved

Functional benefit

Products and services

• IB Diploma Programme (IBDP)
• IB Middle Years Programme (MYP)
• Full Boarding Programme
• Weekly Boarding Programme
• Flexi-Boarding Programme

Quantifiable outcome

• 100% IB pass rate
• +3 more outcomes

Named customers3 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration8 records

Feature3 records

Partnerships

Eight partnerships are on record, tiered core and minor.

• Marymount Global Network (RSHM)coreStrategic or Co-development PartnerConnected to 18 other Marymount Schools worldwide in New York, Los Angeles, Mexico, Rome, Paris, Portugal, Colombia, and Brazil through the Religious of the Sacred Heart of Mary (RSHM) Global Network. The network facilitates exchange of students and teachers, and celebrates shared educational values across borders.
• Girls' School AssociationminorOthersMembership association for girls' independent schools in the UK, providing peer support and advocacy.
• International Coalition of Girls' SchoolsminorOthersGlobal coalition promoting girls' education with founding member status.
• Sable InternationalcoreImplementation/ SI/ Consulting PartnerRequired administrator for Child Student visa applications for non-UK passport holders. Handles CAS preparation, visa application processing, and ongoing compliance for the duration of the visa. Fee of £583 charged for this service.
• Educational Agent PartnersminorChannel Partner/ Reseller/ DistributorNetwork of educational agents globally recruiting international students. Agents operate under the UK Agent Quality Framework. A placement fee is paid to agent partners who successfully enrol students.
• St Joseph's SchoolminorStrategic or Co-development PartnerLocal partner school for Saturday School service programme, enabling Marymount students to participate in community service initiatives.
• Zambian Sister SchoolminorStrategic or Co-development PartnerInternational sister school partnership for peer tutoring programme connecting Marymount students with students in Zambia.
• Cardinal Hume CentreminorOthersLocal charity supporting refugees and immigrants, benefiting from Marymount Mission in Action (MMIA) Read-a-thon fundraising events.

Scale indicators10 records

Recent moves11 records

Expansion highlights6 records

Broad incumbents

• ACS International Schools: Established international school group with multiple UK campuses offering IB programmes to a globally mobile student body, overlapping with Marymount's premium IB positioning.
• St Paul's Girls' School: Top-tier London girls' independent day school (A-level focused) competing for the same academically driven London families, though it does not offer IB.

Direct peers

• Badminton School: UK girls' boarding school with IB offering targeting international families, comparable boarding-plus-IB product to Marymount.
• Southbank International School: London-based IB World School across multiple campuses serving a similar international, premium-fee family demographic seeking IB programmes.
• Downe House: Girls' boarding school with a strong international cohort and IB pathways, competing head-to-head for boarding families in the premium segment.
• Roedean School: UK girls' boarding school offering the IB with an international student body, comparable boarding-plus-academic offering and similar reliance on overseas fee-paying families.
• Cheltenham Ladies' College: Long-established UK girls' boarding school with IB provision and a global recruitment footprint, competing for the same affluent international families seeking premium single-sex education.
• Francis Holland School: London girls' day school competing for the same central-London premium family demographic at the secondary stage.
• TASIS The American School in England: International boarding school offering IB programmes with a heavily international student body, directly comparable on boarding, IB curriculum, and global recruitment.
• North London Collegiate School: Premier London girls' independent day school offering the IB Diploma with a similarly strong international intake and academic results, making it the closest like-for-like premium girls' IB competitor.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat6 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/MMILondon
• Instagraminstagram.com/marymountlondon
• LinkedInlinkedin.com/company/mmi22

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 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 Marymount International School London