Image 1

70% of existing real estate will still be there in 2050.

We make real estate portfolios fossil-free.

Discover our 5-step plan

Planning the path to climate neutrality

Factor4 specializes in energy efficiency, renewable energy, maintenance and comfort for non-residential buildings, industry, residential areas and apartment buildings.

Factor4 guides companies and governments with a wide range of services including assessments, strategy development, implementation processes, verification of the results and ESG reporting.


Bart De Bruyne

"I would definitely recommend Factor4: quality, never avoids any problem, persistent. Factor4 is always alert to innovation and improvement, they keep their eye on the ball!"

Alexander Daenen

Head of Environment & Energy department at VDAB

Interested in a collaboration?

Let us know how we can help!

Are you the expert we are looking for?

Take a look at our open vacancies via the button below.