Mark Twain International School

What Mark Twain International School does

Mark Twain International School is a private, nonprofit K-12 institution operating under The Mark Twain International School Foundation in the Bucharest metropolitan area, founded in 1995 as one of the oldest private international schools in Romania. It serves approximately 700 students from 50+ nationalities across four campuses—Junior Iancu Nicolae, Senior Iancu Nicolae, Cosmopolis, and Blue Lighthouse Academy Titan—offering both a Bilingual (Romanian-English) division and an International (English-only) division. The school holds a rare stack of accreditations: ARACIP national accreditation, full IB World School authorization across PYP, MYP, and DP, and Cambridge International accreditation (including the country's first Cambridge ESOL preparation centre), supplemented by the Romanian National Baccalaureate pathway.

The educational product spans ages 2–19 with a 6:1 student-to-teacher ratio, 40+ co-curriculars, on-campus tutoring, transport, meals, and medical services. The school demonstrates 100% IB Diploma pass rates and 100% university admission rates, with 250+ olympiad winners over 18 years. The business model is recurring tuition billing across academic years, plus add-on services (transport, meals, Summer Academy) and a separate preschool subscription product under Blue Lighthouse Academy. Go-to-market is direct-to-consumer admissions via the OpenApply portal and campus visits, with no third-party channel partners. In 2022 the school expanded its preschool offering by acquiring Fun-tastic Kids and rebranding it as Blue Lighthouse Academy, and in 2023 it was granted a Leader position in the EU-funded European PUZZLE Project on diversity, equity, and inclusion.

Name

Mark Twain International School

Legal name

The Mark Twain International School Foundation

Website

https://marktwainschool.ro

Company type

Private

Founded year

1995

Operating status

Operating

Headcount range

51–100 employees

Short description

Mark Twain International School is a private, nonprofit K-12 institution in Bucharest, founded in 1995, offering Bilingual and International divisions with full IB PYP/MYP/DP authorization across four campuses serving approximately 700 students from 50+ nationalities.

Ownership category

akta.pro rank

Product category

Private K-12 International Education

NAICS

Elementary and Secondary Schools (6111), Language Schools (611630)

SIC

Services-Educational Services (8200)

akta.pro primary industry

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

akta.pro secondary industry

Language Immersion & Bilingual Private Schools (EDAJABAL)

Keywords

• International K-12 education
• International Baccalaureate programmes
• Bilingual private school
• Romanian Baccalaureate
• Private preschool education

Headquarters

HQ city

Voluntari – Ilfov

HQ country

Romania

HQ region

Europe

Offices4 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Infrastructure, Operations, Marketing or Sales, Others

Revenue model

1. Tuition and school fees: Annual tuition for K-12 education across Bilingual and International divisions, charged per academic year in installments.
2. Summer Academy programs: Weekly and monthly Summer Academy fees across Junior Iancu Nicolae, Senior, and Cosmopolis campuses.
3. Blue Lighthouse Academy preschool fees: Annual and monthly preschool/kindergarten fees for Blue Lighthouse Academy Titan, covering creche, preschool programs, meals, and extended hours.
4. Student services (transport, meals): Transportation services across the Bucharest metropolitan area and meal plans are billed as add-on services.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels6 records

Core offering

Mark Twain International School is a private K-12 international school in Bucharest offering the full International Baccalaureate continuum (PYP, MYP, DP) alongside the Romanian National Baccalaureate, delivered through bilingual (English-Romanian) and English-only International divisions. Complementary offerings include a Summer Academy, the Blue Lighthouse Academy preschool network, student services (meals, medical care, transport), and an athletics program, serving roughly 700 students across four campuses.

Product overview

Mark Twain International School offers a comprehensive educational platform with two main divisions: Bilingual (English-Romanian) and International (English-only). The school provides the complete International Baccalaureate (IB) program continuum including Primary Years Programme (PYP), Middle Years Programme (MYP), and Diploma Programme (DP), alongside the Romanian National Baccalaureate. Supporting the core academic programs are complementary offerings including Summer Academy, Blue Lighthouse Academy preschool network, student support services (meals, medical, transport, security), athletics programs, and the European PUZZLE Project for diversity and inclusion. The school serves over 700 students from preschool through high school across multiple campuses near Baneasa forest in Bucharest.

Differentiator

Problem solved

Functional benefit

Brands

• Blue Lighthouse Academy: Preschool education network under Mark Twain IS umbrella, offering programs for children from 18 months to 6 years, including nursery (Baby group), kindergarten (Small, Medium, and Large groups).

Products and services

• Bilingual Division Bilingual program combining English and Romanian language instruction, fully accredited by ARACIP and offering the complete IB program continuum. Targeted at families seeking bilingual K-12 international education in Bucharest.
• International Division English-only international program fully accredited by ARACIP and offering the complete IB program continuum (PYP, MYP, DP). Targeted at families seeking a full-English international K-12 education pathway.
• Primary Years Programme (PYP) IB program for ages 3-12 that nurtures young students as caring, active participants in lifelong learning, building confidence and facilitating transition into formal education.
• Middle Years Programme (MYP) IB program for ages 11-16 that encourages students to understand connections between traditional subjects and the real world, becoming critical and reflective thinkers. MYP accreditation was achieved by Mark Twain IS in 2008.
• Diploma Programme (DP) Two-year IB program for ages 16-19 that prepares students for university and balanced living, recognized by the world's top universities.
• National Baccalaureate Programme Romanian national baccalaureate program offered in grades 9-12 with specializations in Humanities/Sciences or Mathematics/Computer Science, integrated with IB MYP approaches.
• Summer Academy Summer educational and recreational program for children and teenagers offering academic, artistic, sports, and personal development activities in an international environment across Junior Iancu Nicolae, Senior, and Cosmopolis campuses.
• Blue Lighthouse Academy Preschool educational network under Mark Twain IS offering programs for children ages 18 months to 6 years, including creche (Baby group) and kindergarten (Small, Medium, and Large groups). Launched in 2022 via acquisition of Fun-tastic Kids.

Quantifiable outcome

• 100% university admission rate for graduating students
• +3 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

Partnerships

One partnership is on record.

• Școala Gimnazială Nr.1 Petrăchioaia (Scoala Petrachioaia nr. 1 Ilfov)coreStrategic or Co-development PartnerMark Twain IS holds a Leader Position in the EU-funded 'European PUZZLE Project' alongside partner school Școala Gimnazială Nr.1 Petrăchioaia. The project (POCU/988/6/26/155073) develops an integrated outdoor education centre and promotes diversity, equity, inclusion, and justice. It involves 350 students and 36 faculty from both schools, bringing together Mark Twain IS's 55 nationalities with minority and disadvantaged rural students.

Scale indicators12 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• Cognita: International group of schools operating premium private and international schools in Europe, Asia, and Latin America. Comparable as a broad incumbent in the premium international school segment with IB offerings.
• GEMS Education: Global K-12 education group operating premium international schools worldwide. Comparable as an established incumbent in premium international schooling with similar curriculum portfolios (including IB).
• Nord Anglia Education: Global premium international schools group with campuses across multiple regions. Comparable as a large-scale operator of premium international schools, although it does not currently compete directly in Bucharest.

Direct peers

• Lycée Français Anna de Noailles: French international school in Bucharest delivering French national curriculum with international sections. Comparable as another embassy-affiliated premium international school competing in the same Bucharest catchment.
• Royal School of Bucharest: Private international school in Bucharest offering British-style and IB programmes. Comparable as a competing premium international K-12 school serving the same metropolitan catchment.
• American International School of Bucharest: American-curriculum international school in Bucharest with IB authorization. Comparable as a premium multinational K-12 institution serving expatriate and Romanian families in the same market.
• Avenor College: Bilingual Romanian-English private school in Bucharest offering an international curriculum with IB-style elements. Comparable in size, premium positioning, and target demographic to Mark Twain IS.
• Deutsche Schule Bukarest: German international school in Bucharest offering bilingual education and German/IB pathways. Comparable as a competing premium international K-12 school targeting diplomatic and expatriate families in Bucharest.
• Verita International School: Private bilingual/international K-12 school in Bucharest. Comparable in curriculum mix (bilingual plus international programmes) and in targeting affluent Romanian and expatriate families.
• The British School of Bucharest: Premium British-curriculum international school in Bucharest serving nursery through secondary students. Directly comparable as a competing premium K-12 international school targeting expatriate and affluent local families in the same catchment area.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCg1qRie-o6OnMn8saZAotbw
• Facebookfacebook.com/marktwainschool.ro
• Instagraminstagram.com/mark_twain_is
• LinkedInlinkedin.com/company/mark-twain-international-school

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles14 records

Subsidiaries1 record

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 Mark Twain International School