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

Blogposts

15. December 2025 Peter Mikhailenko Climate Change

Recycling low-noise SDA asphalt

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.

27. October 2025 Kristina Wotruba Acoustics & noise protection

3D City Models as a Tool for Noise Control

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.

4. September 2025 Thomas Boss Highlights

Thank you Toni – 32 years at G+P

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

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Grolimund + Partner creates added value in all areas of its offering.

We are leaders in our specialist areas of outdoor noise, road surface acoustics, building physics, software and research & development. We provide high-quality services and develop solutions that benefit people and the environment.

areas of expertise

Environmental noise

Road surface acoustics

Building physics

Software

Research & Development

Office Management

Highlights

4. September 2025 Thomas Boss Highlights

Thank you Toni – 32 years at G+P

26. June 2025 Carole Weber Highlights

Company Tournament 2025: Team spirit, sunshine and a touch of adrenaline

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.

9. December 2024 Thomas Boss Highlights

One year of communicating values

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.

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«I have been with G+P AG for over 20 years. I appreciate the good cooperation and the lively exchange of information in the team. I can contribute my extensive practical construction knowledge and experience to the team, on the construction sites, when problems arise or in the event of construction damage. The knowledge gained from construction damage is passed on as an ongoing learning process within the team. As of October 2022, I will be partially retired and will continue to work at G+P AG with a workload of 40%. I spend a lot of time in the mountains (climbing, ski touring) as compensation.»

Roger Schneider

Team

«At G+P, I can apply my expertise to a huge variety of projects, from architectural competitions to interior design - whether it's an assessment of the volumetrics or the proportion of glass in a giant superstructure or choosing the right curtain fabric for the acoustics in a living room. I find the exchange with customers and other construction experts enriching and instructive. I particularly appreciate the friendly atmosphere at G+P, the uncomplicated exchange and flexible organization.»

Michael Zuckschwerdt

Team

«For me, it is important to work in a software team that is both competent and constructive. At G+P, I can do this by working for a company that helps people improve their lives.»

Simon Sebright

Team

«I have been at G+P for just over a year as a project leader in research and development. I have learned a lot about road acoustics and their measurement in the past year, as G+P is a pioneer in this field in Switzerland. At the same time, there is always room to bring my skills and experience to the table, while developing new ones.»

Peter Mikhailenko

Team

«With the CPX measurement system, we are on the road all over Switzerland measuring the acoustic effect of road surfaces. During these measurements, I discovered many beautiful places throughout Switzerland and was inspired by the different landscapes: sunsets in the canton of Fribourg, summer days on Lake Maggiore or winding drives up unknown mountain passes. The perfect balance to the daily office routine.»

Lena Gafner

Team

«I have been with G+P for over ten years and enjoy the diverse projects and interesting technical problems that our work brings. I can say with confidence that the team is going from strength to strength.»

David Murton

Team

«G+P has enabled me to build new things and develop myself further. I draw my motivation from the fruitful cooperation with the experts in the network and the daily exchange with our innovative and skilled team.»

Erik Bühlmann

Team

«Over the past 30 years, G+P has enabled me to realize all of my professional visions, wishes and ideas and to have a challenging, exciting and successful career. As an entrepreneur, I would like to offer this creative freedom and these development opportunities to as many young, committed and motivated employees in our team as possible who want to seize this opportunity.»

Toni Ziegler

Team

«It is enormously motivating how I can share my enthusiasm, my curiosity and my willingness to perform with a committed team at G+P. Even with more than 20 years of professional experience, every day is therefore challenging, varied and exciting.»

Jürg Zweifel-Schielly

Team

«I find it exciting and enriching to exchange ideas across disciplines in the G+P team. Everyone contributes their own experience and expertise, whether it's during a project meeting, a coffee break or an after-work beer. We always come up with creative and goal-oriented solutions for our customers, even for particularly challenging problems.»

Christian Merkli

Team