MixTree Languages
In-company English course delivered at a client office in Amsterdam

In-Company English Courses

In-Company English Courses for Teams

Customised English training for your team — delivered on-site at your office in Amsterdam, live online or at a location of your choice. We assess every participant, design the programme around your business goals and schedule lessons around the working day.

How It Works | From Consultation to First Lesson

  1. 1

    Free 30-minute consultation

    We discuss your goals and assess your team’s English level.

  2. 2

    Tailored programme & quote

    Your trainer designs a programme — you receive a full quote including all materials and hours.

  3. 3

    Course is booked

    Once you’re happy with the programme, we schedule the lessons around your team.

  4. 4

    Your team starts learning

    Highly interactive lessons focused on real, useful situations at work.

Tax tip: our English training can be offered as a tax-free employee benefit under the Dutch Work-Related Costs Scheme (WKR) — useful when planning staff development.

Coaching Topics & Areas of Focus

  • Presentation and public speaking skills
  • Pronunciation and accent reduction
  • Team building
  • Diplomacy, tact and formal language
  • Networking
  • English for HR managers
  • Conducting an interview
  • Effective email composition
  • Interpersonal communication for management and leadership
  • Negotiation strategies
  • English for specific purposes (legal, medical, etc.)

Companies We Work With

  • Gemeente Amsterdam — in-company English training client of MixTree Languages
  • Booking.com — corporate English training client of MixTree Languages in Amsterdam
  • KPN — business English training client of MixTree Languages
  • RAI Amsterdam — in-company English course client of MixTree Languages
  • WeTransfer — corporate English training client of MixTree Languages
  • Ageas — business English training client of MixTree Languages

Recent In-Company Case Studies

A snapshot of recent programmes — from tailored university training to workforce integration and intensive youth courses.

  • Higher Education · Germany

    University of Potsdam

    Tailored English training for university advisory staff

    A 5-day, 48-hour in-person programme in Amsterdam for 20 staff members from the Central Student Advisory Service. Two closed groups were built around proficiency and role — student advisors, recruiters and coordinators — with a curriculum co-designed from four focus areas: advisory role-plays (enrolment, change of major), handling emotionally charged conversations, STEM-specific terminology, and grammar refreshers to overcome speaking barriers.

    Outcome: Three MixTree trainers delivered a fully customised programme funded under Erasmus+, with the university confirming the project months in advance and renewing interest for future groups.

  • Workforce Integration · Poland

    Recolo

    English courses for Ukrainian recruits, funded by Dorszam vouchers

    Two live-online private group courses (20 hours each) for Ukrainian refugees preparing to enter the Polish workforce — one A0–A1 beginner group and one A2+/B1 group, taught by two MixTree teachers across evening sessions. Our academic team set up dedicated Zoom rooms, Google Classroom and a WhatsApp channel, and worked closely with Recolo to handle the realities of a refugee group: unstable attendance, mixed devices and varying confidence levels.

    Outcome: Recolo highlighted MixTree’s “sensitive and supportive” approach and committed to a long-term partnership, with new groups planned three times a year.

  • Youth Group · Italy

    Raggi Group (Austria Vacanze)

    4-day intensive English course for visiting Italian students

    An intensive English programme in Amsterdam for ~36 Italian students aged 11–17, split into three classes over four mornings. MixTree coordinated classroom rental, lead teachers and on-arrival logistics, and supported the partner with group bookings for Amsterdam cultural sites alongside the lessons.

    Outcome: The group reported being “very pleased with everything” and certificates of attendance were issued the week after the course finished.

Looking for individual one-to-one lessons?

If you’re after private lessons for one person rather than a team, our Private English Lessons are available on-site in Amsterdam or live online — from €50/hour in packages of 10–30 hours.

Activate Your English | Why It Works

Grammar through speaking

You activate grammar through real speaking practice, which makes it easier to remember.

High-quality materials

The fun and engaging Oxford English File textbook with extra online practice.

Personalised goals

Experienced English teachers guide you to set personal learning goals and give you regular feedback.

Friendly atmosphere

Practise English in a friendly, fun atmosphere — including a class WhatsApp group and Language Exchange meetups.

Why MixTree Languages

Taught by professionals

Highly experienced, certified English teachers (minimum CELTA or TEFL) who are native or bilingual speakers.

Designed by experts

Our MA-qualified Learning Manager designs effective English programmes with professional materials.

Focused on you

A detailed level assessment places you on the correct course; teachers help you develop personalised goals with regular feedback.

Highly interactive

An innovative approach maximises your speaking time through discussions and role-plays — speaking is the most effective way to improve.

Certificate of Attendance and Proficiency Level

All packages include a final one-to-one evaluation and a Certificate of Attendance and Proficiency Level based on the Common European Framework of Reference for Languages (CEFR).

Student Reviews & Testimonials

★★★★★ 4.9 on (267 reviews)

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Vita Kolpinova

7 months ago

★★★★★

I've finished my C1 Morning Course (Dublin) in MixTree and I'm completely happy with the whole experience! We practiced a lot of speaking in every class, and it made me very talkative :) I love the communicative approach of teaching with flipped classroom — you're always working with your classmates and learning new grammar or vocabulary together! My teachers, Magui and Kathleen, are amazing people. I've also decided to continue with the next part of this course in October!

Irem Onar

5 months ago

★★★★★

Beyond teachers excellent command of English, mentorship and flexibility have made a remarkable progress on my English journey. I recommend 1-1 online classes for the ones looking for confidence and progress.

Nur E

4 months ago

★★★★★

Ashley, you are an amazing teacher! I started learning English in a group course, and Ashley was my first private teacher. I had excellent communication with her and always attended lessons enthusiastically. Later, we continued with private lessons, and I improved my English during this time. Feeling the care and dedication she puts into her lessons was very motivating. Talking with her in English, sharing my daily life and plans, felt almost like therapy; I left each lesson happy and inspired. I can now express myself better. The immigration process is already challenging, and working with a kind and supportive teacher like Ashley was truly valuable. I hope everything goes as she wishes she is an amazing teacher.

Build a stronger English-speaking team

Book a free 30-minute consultation. We’ll assess your team’s level, design a programme and send a complete quote — all materials and lesson hours included.