You have the experience. Now let your English carry the same authority. One-to-one business English coaching for executives and entrepreneurs who work across borders.
Coaching since 2017Students from 20 countriesWarsaw and online
Derek ZardusBusiness Owner · Mentor · Coach
Business English coaching for international executives
Bizz English is one-to-one business English coaching for executives and entrepreneurs who work internationally. I'm Derek Zardus, a business English coach in Warsaw. Before I founded Bizz English in 2017, I spent more than 15 years in corporate sales, management, and training. I coach in person and online. My goal is simple: you lead meetings, negotiate, and present in English with the same confidence you have in your own language.
Who this is for
Is this you?
Your English is good. It helped you get where you are today. But good English and boardroom English are not the same thing.
You think clearly in your own language. In English, you translate in your head first. By the time your sentence is ready, the conversation has moved on.
You have a new international role. Every call with London or New York feels like a test.
In your own language, you are a strong negotiator. In English, you say "yes" too quickly.
You have finished the grammar courses. You don't need another textbook. You need practice with someone who understands business.
Why Derek
“Not a teacher. A leader with business experience.”
Joanna G., Vice President Sales · FMCG
Why work with Derek
One of my clients, a Vice President of Sales, said this about me. I am happy to agree with her.
Before I taught English, I worked for more than 15 years in corporate sales, management, and training. I have built and run six businesses of my own. I have led teams through change, trained sales people, and sat in more budget meetings than I can count.
I have also spent much of my life in front of an audience: as an entertainer, as an actor on stage and screen, as a cruise director, and in the U.S. National Forensic League, where I competed and coached in speech and debate.
So we won't only work on what you say. We will work on how you say it: your voice, your timing, and your presence in the room.
Grammar is important. Being understood is more important.
Every client follows the same three steps. The content is always built around your goals, your industry, and the real conversations you have at work.
01
Confidence
We start with what you already do well. You show what you know, and you see that people understand you. Most clients are better than they think.
02
Production
Together, we choose a real goal. For example, a quarterly presentation, a negotiation, or your first company meeting in English. Then we build the language for it, step by step.
03
Refinement
This is my favorite part. We work on the music of English: rhythm, stress, and tone. Your English moves from correct to compelling.
Formats
In person, online, or on location
Warsaw
Weekly coaching
Face to face, every week, in Warsaw.
Online
Wherever you are
I have coached professionals from 20 countries, including the UK, Spain, Hungary, Czechia, and Austria.
For teams
For your company
Seminars and intensives in English for teams. Leadership, persuasion, and confidence, taught in English. I invoice your company directly.
“If you want to learn business English, I highly recommend Derek. He is not a teacher, he is a leader with business experience.”
Joanna G.Vice President Sales · FMCG
★★★★★
“Derek listens intently to the conversation and makes comments and corrections without interrupting. Each lesson, Derek introduces new material and connects it to my experience.”
Adam M.CFO · Capital markets
★★★★★
“Derek showcases a deep understanding of the business world. His insights, analysis, and contributions are valuable and thought-provoking. His ability to provide constructive feedback and offer strategic advice proved to be instrumental in many situations.”
Radosław B.CEO · Construction
Seminars
Business skills, taught in English
These are real business topics, and we discuss them in English. You learn the skill and the vocabulary you need to use it in an international meeting.
I used to treat my books like museum pieces. No folded pages. No pen. If I had seen someone write in one of my books, they would definitely have been downgraded from friend to...
Sometimes having a conversation in your second language is like jumping out of a plane and sewing your parachute on the way down. You know you can probably do it, but you have to solve the problem while it is already...
Good communication is not only about using the right words. It is also about making it easy for other people to understand what you mean. This becomes especially important when you are leading a meeting, explaining a...
Every leader has experienced the same moment. You leave a meeting feeling confident that you explained everything clearly. A few days later, someone asks a question that was already answered, or the team moves in a...
Bizz English is for executives, directors, managers, and entrepreneurs who use English at work, or want to. Most clients already speak good English. They want to lead meetings, negotiate, and present with the same confidence they have in their own language.
Do you coach in person or online?
Both. I coach clients face to face in Warsaw every week, and online for clients anywhere in the world. I have worked with professionals from 20 countries. For full-day intensives and seminars, I can also travel to you.
What level of English do I need?
Most clients are at an intermediate level or higher. You should be able to hold a simple conversation in English. On the free intro call, we look at your level together and decide if coaching is the right fit.
What happens on the free intro call?
We talk about where you use English at work, what feels difficult, and what you want to achieve. There is no pressure to buy. You will leave with at least one idea to try the next day, even if we don't work together.
How fast will I improve?
It depends on your goal and how much you practice between lessons. There is no magic wand in language learning. One hour a week is a start, but short daily practice makes the biggest difference. I give you materials and tools to make that practice easy.
Can my company pay for the coaching?
Yes. I can invoice your company directly.
Is there a guarantee?
Yes. Coaching comes with a money-back guarantee, so you can start with no risk. The full terms are in the Terms of Use.
Do you run seminars for teams?
Yes. I run seminars in English on leadership, persuasion, critical thinking, productivity, and confidence, in Warsaw or on location. See the Seminars page for all topics.
Free intro call
Let's hear how you sound today
The first step is a free intro call, with no pressure to buy. We will talk about where you use English, what is difficult for you, and what "fluent, confident, professional" means for you. You will leave with at least one idea to try the next day, even if we don't work together.
Get a free English class in your inbox every week: a short article, a recording for listening and pronunciation, vocabulary, idioms, and questions to test yourself. Plus invitations to free group classes.
Fluent.Confident.Professional.
Joanna G.Vice President Sales · FMCG
Adam M.CFO · Capital markets
Radosław B.CEO · Construction