The plus for people and the environment Grolimund + Partner is a specialist engineering firm with five locations and 40 years of experience.

Noise is one of the most significant burdens in the vicinity of railway lines. For local residents, it means restless nights and a reduced quality of life. For project managers, noise is a sensitive factor that influences the acceptance of a project and helps determine how smoothly approval procedures run. Anyone planning railway infrastructure today must not only measure noise, but understand it, assess it proactively and reduce it effectively. This is exactly where G+P comes in.

Over the past years, several hundred kilometres of highly effective low-noise SDA 4 road surfaces have been constructed across Switzerland. Many of these sections are now approaching an age at which replacement will soon be required. One aspect has so far received little attention: these specialised surfaces cannot be recycled as easily as conventional road materials. This issue will become increasingly relevant in the coming years. By 2030, more than 200,000 tonnes of SDA material are expected to arise and will need to be reused in a technically sound manner.

How loud are our cities – today and in the future? Using the example of the city of Uster, G+P shows how traffic noise can be made visible in realistic 3D city models. These detailed virtual representations of the real environment provide a solid basis for planning, communication and targeted noise mitigation.

At this year’s summer event in Thun, Toni celebrated his last official working day at Grolimund + Partner – in glorious weather, together with the team, on and around Lake Thun. A fitting setting for a special moment: the conclusion of 32 years filled with heart, wisdom and commitment

On 21 June 2025, sports-enthusiastic colleagues from Grolimund + Partner gathered at the Hunzigenrüti football pitch in Rubigen for the annual company tournament. The weather? Perfect. The mood? Even better.

In January 2024, as "The New Boss", I explained in a video statement what is important to us and to me at G+P. After almost a year as the new CEO, it's time for a little look back. Our values take centre stage. Values are a key success factor, especially for SMEs like us.