Consulting engineers for more than 90 years

We need ideas with vision. Ideas that meet our rapidly changing world, the growing standard of global prosperity and the increasing need for people to have a healthy, safe and comfortable living environment. Ideas that also take into account stringent hygiene and safety regulations and that address the concerns of climate change and CO2 emissions.

As an independent engineering firm with 500 specialists worldwide, Deerns has the skills to make those ideas a reality. Indeed, as experts in the field of technical infrastructure for buildings and facilities in urban and industrial areas, Deerns has been doing this since 1928, tailoring its approach to every client’s unique needs and specifications. From concept to design to supervision to aftercare: Deerns brings concepts to life.

More about Deerns


Our activities may involve a complete project, from concept to implementation and aftercare. But thanks to our ample specialist knowledge we are able to take on any specific partial project as well. Next to a full range of MEP design services, Deerns offers solutions in the following specific areas:

Our Offices

If you wish to contact us, please click on the links below to find details of our international offices. You can also contact us through our general email address: contact-at-deerns-dot-com.

International Overview Contact us