ISF International School Frankfurt Rhein-Main

What ISF International School Frankfurt Rhein-Main does

ISF International School Frankfurt Rhein-Main is a private international school founded in 1995 and operating from a single campus in Frankfurt am Main, Germany. The school delivers English-language international education from Kindergarten through Grade 12 to 800+ students drawn from more than 40 countries, with a primary customer base of internationally mobile expatriate families relocating to the Frankfurt Rhein-Main region. Academic pathways include the IB Diploma, AP®, and IGCSE, supplemented by daily German language instruction and elective tracks in Spanish, French, Korean, and Japanese. The school maintains a 100% university acceptance rate and supports students through a dedicated University Counselling team.

The school's core operating technology is the proprietary SABIS® Digital Platform, deployed alongside the SABIS® educational system, which ISF describes as carrying 140 years of global expertise and providing structured academic monitoring with targeted intervention to prevent learning gaps. Complementary in-school programs include the Student Life Organization (SLO®) for daily timetabled leadership and character development, plus a Sports Academy supported by campus facilities including a swimming pool, sports infrastructure, and dedicated coaching. The school claims externally recognized academic credentials, including Top 10 IB school status in both Germany and Europe per IB Schools.com, the highest IGCSE score in the world for Foreign Language German, and the highest IGCSE score in Germany for Mathematics.

ISF operates as a member of the SABIS® Network of Schools, a global educational network spanning North America, South America, Europe, Africa, and Asia. Revenue is generated through recurring annual tuition fees billed directly to families on a subscription model; specific tuition rates are not publicly disclosed. Go-to-market is sales-led via a direct admissions process that includes scheduled school visits, prospective family registration through a CRM system, and parent testimonials. Marketing channels combine a content-rich website (isf.sabis.net), SABIS® Network social media presence, and events such as admissions tours. ISF does not disclose financial figures, leadership, or M&A activity in the public source material reviewed.

Name

ISF International School Frankfurt Rhein-Main

Legal name

ISF International School Frankfurt Rhein-Main

Website

https://isf-net.de

Company type

Private

Operating status

Operating

Headcount range

51–100 employees

Short description

ISF International School Frankfurt Rhein-Main is a private K-12 international school in Frankfurt, Germany, serving 800+ students from 40+ countries. It delivers IB, AP, and IGCSE pathways via the proprietary SABIS® Digital Platform and generates revenue from annual tuition fees paid by expatriate families.

Ownership category

akta.pro rank

Product category

International K-12 Education Services

NAICS

Elementary and Secondary Schools (6111)

SIC

Services-Educational Services (8200)

akta.pro primary industry

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

Keywords

• International K-12 education
• Private school services
• IB Diploma programme
• University counselling
• Multilingual instruction

Headquarters

HQ city

Frankfurt

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Marketing or Sales, Others

Revenue model

1. Tuition and Enrollment Fees: ISF generates revenue through private school tuition fees charged to families for international education from Kindergarten through Grade 12, including IB Diploma, AP, and IGCSE pathways.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

ISF International School Frankfurt Rhein-Main is a private international school providing comprehensive education from Kindergarten through Grade 12 for over 800 students from 40+ countries. The school delivers English-language instruction with daily German classes and additional languages (Spanish, French, Korean, Japanese), offering multiple graduation pathways including the IB Diploma Programme, AP® qualifications, and IGCSE certifications. Core services include structured academic monitoring through the SABIS® system, university counselling for global placements, the Student Life Organization (SLO®) for leadership development, and a Sports Academy.

Product overview

ISF International School Frankfurt Rhein-Main is a private international school offering comprehensive educational services from Kindergarten through Grade 12, serving over 800 students from 40 countries. The school provides multiple academic pathways including the IB Diploma Programme, AP® qualifications, and IGCSE certifications, delivered primarily through English instruction with daily German language classes and additional language options including Spanish, French, Korean, and Japanese. The SABIS® Digital Platform serves as the core educational technology platform for delivering and managing the curriculum. The school also offers the Student Life Organization (SLO®) for leadership development, dedicated University Counseling services, and a Sports Academy with coaches and facilities including a swimming pool.

Differentiator

Problem solved

Functional benefit

Products and services

• Kindergarten and Preschool Programme

Quantifiable outcome

• 100% university acceptance rate for graduating students
• +4 more outcomes

Named customers2 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

Feature3 records

Partnerships

One partnership is on record.

• SABIS® NetworkflagshipStrategic or Co-development PartnerISF is a member school of the SABIS® Network, a global educational network spanning North America, South America, Europe, Africa, and Asia with schools in 20+ countries. The partnership provides ISF access to the SABIS® educational system, including the SABIS® Digital Platform, 140 years of proven educational methodology, and a global network of schools for student exchanges and shared resources.

Scale indicators3 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Strothoff International School: Independent international school in the Rhine-Main area offering IB and Cambridge pathways; competes directly for the same Frankfurt-region expat families seeking English-medium K-12 education.
• Frankfurt International School: Long-established IB and international curriculum school in the same Frankfurt metro, serving expatriate and internationally mobile families with comparable K-12 offerings and competing directly for the same enrollment pool.

Broad incumbents

• International School of Brussels: One of Europe's largest and oldest international schools, offering full IB continuum; relevant broader incumbent comparable for scale, reputation, and curriculum mix in continental European expat markets.
• GEMS Education: Largest global K-12 private school operator with a broad premium international school portfolio including European campuses; relevant as a global incumbent comparable for international-school business model and scale economics.
• Nord Anglia Education: Global premium international school operator with multiple German and European campuses offering IB and IGCSE; comparable on curriculum and target customer (premium-segment expat families) but operates as a multi-school platform.

Regional players

• Munich International School: IB and AP international school serving the Munich expat community with similar full K-12 international curriculum; relevant regional comparable rather than direct competitor.
• Bavarian International School: IB and AP international school in the greater Munich/Bavaria region, comparable in size and curriculum mix, serving internationally mobile families in southern Germany.
• International School of Düsseldorf: Major IB international school serving the Düsseldorf expat corridor with comparable K-12 English-medium curriculum; comparable operating model but in a different German metropolitan market.
• International School of Stuttgart: IB and Cambridge international school serving Stuttgart's automotive and engineering-sector expat families; comparable curriculum and operating model in a different German metro.
• Berlin International School: IB international school serving Berlin's large expat community; comparable K-12 international offering with similar tuition model in another German metro.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/SABIS_Education
• LinkedInlinkedin.com/company/internationale-schule-frankfrut

Revenue estimate

Valuation estimate

Number of profiles

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 ISF International School Frankfurt Rhein-Main