Your partner for language learning in Switzerland and abroad

German, English, French, Italian…

Castle’s Language Institute supports your efforts to learn another language

At our three schools in Zug, Thalwil and Basel, we have offered high-quality language instruction in small classes throughout Switzerland for more than 40 years. We specialize in tailor-made language courses for private individuals and companies.

Are you looking for a suitable school to learn a language abroad? Castle’s cooperates with numerous language schools around the world and will find the course program that suits your needs. Benefit from our years of experience and our worldwide partner network. We take care of your travel and your accommodation so that you can relax and look forward to your language stay.


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Language courses in Zug, Thalwil, and Basel

Specializing in language instruction tailored to your needs, Castle’s has over 40 years of experience helping students to achieve their language goals.

Our group courses are small – most courses have a maximum of six students – so that we can provide the best support to each student. We offer a wide range of languages, the most common being English, German, and French. However, we can provide students with instructors of many other languages, including Italian, Spanish, Portuguese, Russian, Japanese, and Arabic.

Don’t see your language listed? Just ask — we’re here to help!

Castle’s also offers in-house company courses, private instruction, and workshops for teachers to hone their skills.

Latest courses – open enrolment anytime

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Privatunterricht-Private lessons B1/B2

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German Course A2 Semi-Intensive Tuesday-Friday Morning

CHF 1,305.00
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Private lessons B1/B2

Study Abroad Worldwide

Whether you are planning your first language trip abroad or are a lifelong traveller in search of immersion, we can find the best course for you. We work together with dozens of schools across the world to provide students with the perfect programme for their goals.

Castle’s offers study abroad programmes in English, French, Italian, German, Spanish, or Russian. Need another language? Just ask—we can find you the right school.

With schools in over 65 destinations, we are confident that we have the right school for your needs. We have visited the schools personally and can recommend them all.

In addition to individual language stays, we have been successfully organizing stays abroad for groups of students for 40 years. We also offer a wide range of special courses abroad for different needs: Exam preparation, for seniors, for families etc.

Top Destinations for Study Abroad

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Placement Tests

The first step in finding the perfect course is taking a placement test. In order to find just the right course, we ask prospective students to complete a short test to evaluate their current language level. Tests are available for English, French, and German.

Client Feedback

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