We are ATH

We are KROENERT, COATEMA and DRYTEC. We are the companies of the ATH Group would like to introduce ourselves in more detail through our team. 

We are ATH. Pleased to meet you!

As the umbrella company of a group made up of tradition-steeped, somewhat more recently established but consistently innovative members, we attach great importance to a sense of togetherness. In the ATH Group we’re colleagues – not just people who happen to work for the same company! In order to give you more of an insight, we conducted brief interviews with some of our colleagues and asked them to describe themselves and their field of work in more detail. We also wanted to hear about their most interesting project, their favourite gadget and the app that changed their life.


“Give someone a smile and you’ll get one back.”

My name is Melanie Rehberg, 29 years old. Although I’m not a native of Hamburg, I’ve always felt drawn to this beautiful Hanseatic city – because of work, friends, restaurants, concerts, musicals, the proximity to the North Sea and much more.

What did you do before you started working at KROENERT?
Unlike most people, I don’t come from an industrial background. In fact I trained as a hotel manager and gained a further six years of experience in the field before joining the ATH team on 1 July 2019. As a receptionist, I gained a foothold in the company and now I am happy to support the sales department as a sales assistant. 

What keeps you going on a day-to-day basis?
Give someone a smile and you’ll get one back. It’s this small gesture that keeps me motivated every day to sit at work with a smile and give my best.

All of Melanie Rehberg’s answers



“The machines go on a journey – and we go with them. You get to see the world. I found that exciting right from the word go!”

Jens Vollpott is also a salesman through and through: In the video interview, the current Regional Sales Director tells us what else is important to him and convinced him of KROENERT. (The video is in German with English subtitles).


Mechanical engineering studies in Aleppo, scholarship through the Schotstek, Simulation engineer at KROENERT

My name is Zaki Röschard. I was born in Aleppo/Syria in 1988. I studied mechanical engineering at the University of Aleppo – specialising in materials science. At the same time, I was able to do my master’s degree at the Institute of Technology in Damascus. I had to leave my home country at the end of 2015 and I started a new life in Hamburg.

How did you hear about KROENERT?
As a newcomer in Hamburg, I was looking for contacts and networks. I was lucky enough to be able to get a scholarship under the Schotstek programme. (...)

All of Zaki Röschard’s answers



Regina Reuscher, Director of Projects at COATEMA

How did you hear about COATEMA?
It was through my professor at Niederrhein University of Applied Sciences.

What do you think makes a good employee in your field of work?
Committed, motivated, able to work independently, flexible.

All of Regina Reuscher’s answers



“The construction of a renewable energy plant in Asia was my most exciting project to date.”

What did you do before you started working at COATEMA?
Project management in special machine construction.

How did you hear about COATEMA?
Joint research projects.

All of Susana Abreu Fernandes’ answers


Motivated by coffee and full of vigour: Havva Celik, Project Manager at COATEMA

What keeps you going on a day-to-day basis?

What was your most exciting project?
COATEMA in all its facets.

All of Havva Celik’s answers



"Impossible are only the things you don't do."

Why don't you start by telling us something about yourself?
Hello, my name is Andrea Rehberg, I am 39 years old, have two wonderful children and live in beautiful Schleswig-Holstein.

What keeps you going on a day-to-day basis?
ATH is as much a part of my life as my family. I am very lucky to have found my dream job in this company. I drive to work with a smile on my face and look forward to having another varied day with my colleagues, followed by a relaxing evening with my children.

All of Andrea Rehberg's answers


Your career with the ATH Group

The companies of ATH Altonaer-Technologie-Holding are very international in their orientation: As a skilled specialist, you can look forward to a job in a cutting-edge technology sector that offers lots of opportunities to make an active contribution.


Longstanding experience

It's the healthy mix of experience and fresh ideas that defines our team. Our high level of technology cutting-edge facilities and international customer base guarantee an exciting working environment.


The companies of ATH Altonaer-Technologie-Holding are very international in their orientation: as world market leaders in the field of coating technology, the companies count numerous well-known corporations among their customers as well as specialist niche suppliers.


Further development

Our goal is continuous development Your chances of advancement in the company are excellent because we attach great importance to personnel development.

Family business and foundation

ATH Holding is owned by two foundations. Profits are reinvested or donated to cancer research. This creates the basis for innovation.