In-house and online language courses

A place for people who communicate across languages and cultures

Our goal? Helping you communicate with confidence across languages and cultures through practical, personalised language lessons!

Our clients? Organisations, family-run companies, international teams, individual learners!

Based in Rotterdam · In-house throughout the Randstad · Online across Europe

WhatsApp Image 2025-09-26 at 13.21.53 (10)

WhatsApp Image 2025-09-26 at 13.21.53 (3)

Meet the team

What we offer

How it works

Every learner and every organisation has different goals. Let’s talk about yours! If needed, we’ll arrange a free language consultation and recommend the programme that best fits your needs, or those of your team. Book a discovery call!

Ways to learn

Individual learning

One-to-one courses tailored to your goals and schedule.

Group courses

Interactive courses for small groups and teams.

🌍 In-house or online 🌍 Lessons tailored to your goals, pace and schedule

Lessons built around everyday and professional communication, with cultural awareness at the heart of every course.

What to expect

Structured to keep you progressing. Relaxed to keep you talking.

Whether you're learning on your own or organising a course for your team, every course is designed around your goals
Develop the language skills you need to communicate confidently at work, in everyday situations and across cultures
Lessons are built around participation, encouraging learners to speak, collaborate and build confidence from day one

Go beyond vocabulary and grammar by developing the cultural awareness that makes communication more natural and effective
Regular feedback and clear learning goals help learners stay motivated and see their progress over time
In-house language courses throughout the Randstad or online across Europe

      
      
 
 
    Posted on Google  
 Trustindex verifies that the original source of the review is Google.  Sve je super, odlična profesorica Lea 🤗
   sara.nikolov 
 
 
 
 
 
   
      
 
 
    Posted on Google  
 Trustindex verifies that the original source of the review is Google.  I took a business English course for work. I especially like the practical approach through simulated meetings and phone conversations, which has given me confidence in using English at work. I would recommend it to anyone who wants to improve their business English.
   Darko Š. 
 
 
 
 
 
   
      
 
 
    Posted on Google  
 Trustindex verifies that the original source of the review is Google.  I’ve been attending the advanced English course at Qaranta Lingua for over two years now, and I couldn’t be happier with my choice! The school is fantastic, and my teacher Lea is simply amazing – she’s professional, patient, and makes every class fun and engaging. She always comes up with interesting topics, so lessons are never boring. Even though the classes are online, everything is super flexible. If something unexpected comes up, it’s always easy to reschedule, which I really appreciate. I highly recommend Quaranta Linguae and especially teacher Lea to anyone who wants to improve their English !
   Sabina K 
 
 
 
 
 
   
      
 
 
    Posted on Google  
 Trustindex verifies that the original source of the review is Google.  Ik wilde altijd al mijn Italiaans verbeteren, en Lea helpt hier perfect bij. Omdat ze precies luistert naar je persoonlijke wensen, is het lesmateriaal en de begeleiding op maat. Een keer per week meeten we face-to-face en bespreken we onderwerpen zoals het weekend en dagelijkse activiteiten. Je leert snel en bovendien maakt ze de lessen heel erg leuk! Grazie Lea :)
   Aron van Dijk 
 
 
 
 
 
   
      
 
 
    Posted on Google  
 Trustindex verifies that the original source of the review is Google.  Lea is an excellent teacher. She’s very patient and you can really tell how much effort she puts into teaching. The classes are super enjoyable and clear, and even though it’s a formal lesson, she makes you feel so comfortable like you’re learning with a friend. 100% recommended.
   Maita Castro 
 
 
 
 
 
   
      
 
 
    Posted on Google  
 Trustindex verifies that the original source of the review is Google.  Sve pohvale za način organizacije online tečaja engleskog jezika. Sat vremena intenzivnog rada koji izlazi iz kalupa klasičnoga načina poučavanja bio je pravi užitak. Dobila sam priliku razgovarati o svakodnevnim stvarima što mi je najteže kada koristim strani jezik. Dobila sam prigodu govoriti i griješiti a ne osjećati se zbog toga loše. Zahtjevi su uvijek bili nekoliko koraka više nego što znam/mogu ali s otvorenom "vratima" za traženje pomoći i dodatna pitanja. Vrlo sam zahvalna što sam dobila prigodu sudjelovati i biti dio jedne male grupe u kojoj je voditeljica uspjela stvoriti ugodno ozračje za rad. Moje iskrene preporuke svima kojima je draže online učenje. Zdenka
   Zdenka Hrvoic 
 
 
 
 
 
   
      
 
 
    Posted on Google  
 Trustindex verifies that the original source of the review is Google.  Pohađala sam online tečaj engleskog jezika i imam samo riječi hvale. Preporučujem svima. Predavačica je jako simpatična i ugodna, atmosfera je opuštena, a nastava je super koncipirana. Ukoliko trebate razbiti blokadu pričanja na engleskom jeziku ovaj tečaj je odličan izbor.
   Antonija Leko 
 
 
 
 
 
   
      
 
 
    Posted on Google  
 Trustindex verifies that the original source of the review is Google.  Po završetku online tečaja talijanskog jezika stupnja A1, želim istaknuti visoku razinu stručnosti i profesionalan pristup profesorice. Predavanja su bila temeljita, jasno strukturirana i prilagođena početnicima, uz obilje korisnih informacija i materijala. Znanje koje sam stekla na tečaju omogućilo mi je samopouzdano savladavanje osnova talijanskog jezika. Iskreno preporučujem ovaj tečaj svima koji žele kvalitetan početak u učenju talijanskog.
   Danijela Vidas Levak 
 
 
 
 
 
   
      
 
 
    Posted on Google  
 Trustindex verifies that the original source of the review is Google.  I started to learn italian with teacher Lea in Zagreb and I was so happy to be able to continue learning with her when she moved to Rotterdam... Now we have on line classes at least twice a week and I am thrilled! Lea is a great professional, she makes learning italian so easy and I hope to go with her all the way to the highest level... She is simply the best teacher that I have ever had the opportunity to work with and I would highly reccomend her and her school to everyone!!! Best of luck with your courses at Quaranta linguae!!!
   Ivana

In-house and online language coursesA place for people who communicate across languages and cultures