Who we are

The J&K Consulting GmbH specializes in the needs and requirements of the regulated industry, especially in the following sectors:

  • cGxP Compliance Service
  • Quality by Design
  • PAT-Consulting
  • Business Excellence

The company emerged from the Josteit, Herten & Partner GmbH (est. 1992).

Since 2009 Rainer Krüger is the owner of the company.

Our business approach stands for highest quality.



For us Business Excellence stands for triable consulting and high customer satisfaction obtained through sustainable changes.

Our actions are based on:

  • Focus on processes with the aim of optimization
  • Focus on implementation
  • Long-term experience in project work
  • Extensive fields of competence
  • Visualization and optimization of interfaces
  • Training and transfer of know-how for the establishment of new processes


Due to our long-term project experience, we have a diverse knowledge.

We link departments, coordinate challenges and arrange consolidated results.

We see ourselves as part of an existing competence-team and support our client until the final implementation. Together we can get things moved!

You can get an overview on our general services here.


Multidisciplinary Team

Within our interdisciplinary teams and scientific network we are able to approach and implement subjects in a goal-oriented manner. Our focus resides on quality and feasibility. We provide the knowledge we gain and thus constantly try to achieve sustainability.
We see ourselves as a full service provider with experience in natural sciences, engineering and economics.

  • Economists
  • Biologists
  • Chemical Technologists
  • Engineers
  • IT-Specialists
  • Pharmacists


We are your contact for questions regarding the regulated industry!

We would appreciate to support you in pharmaceutical development, process-related risk management, quality management and project management.

We have the suitable expert for each of these topics.


Where to find us

Our location is as individual as we are.

The J&K Consulting GmbH can be found in one of the oldest buildings of Rommerskirchen.

The former doctor‘s residence was modified to the requirements of the J&K Consulting GmbH, focusing the charm of the building. After the renovation, the villa now offers generous rooms and a nice wine cellar.

You‘ll find our address here.


We cooperate in the science sector in case of hot melt extrusion with the University of Gent and in case of the Quality by Design-Approach with the Technical University of Wien.

Dausch Technologies
GND solutions
HARTER drying solutions
Lindner Group
TU Wien
Univerity Gent


Your career at J&K Consulting

We are always looking for motivated and experienced consultants coming from the scientific, economic, engineering or technical sector.

The following career opportunities are available:


  • Scientific, economic, engineering or technical education
  • Professional experience in the regulated industry
  • Experience in customer

Project Consultant

  • Scientific, economic, engineering or technical education
  • At least a master’s degree is required

Business Analyst

  • Scientific, economic, engineering or technical education
  • At least a bachelor’s degree is required

Apprentice/Working Student

  • Ongoing education in the sector of science, economics, engineering, technics or depending on a possible tender

If you are interested in a job at J&K Consulting, feel free to send us your meaningful application via mail to: info@j-k-consulting.de

If you have any further questions, please contactContact us directly.