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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«The highly specialized expertise within G+P enabled me to train in-house as an acoustician. Today, I am happy to pass on this knowledge to new employees. I experience a great openness and willingness to help each other within the team and between the specialist teams. In this way, everyone contributes to maintaining and further developing G+P's high level of professional competence.»

Kristina Wotruba

Team

«G+P allows me to work in an area where I can influence the achievement of kilma targets on a small scale. By planning energy-optimized buildings, we can actively influence the CO2 footprint. The daily work with the great team of G+P is a pleasure. In addition, I was able to meet my wonderful wife at G+P.»

Mathias von Arx

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

«As an energy and sustainability consultant, I enjoy supporting clients in making their buildings more durable, comfortable, productive and efficient. I am particularly fascinated by the systemic interrelationships and finding holistic solutions in this context.»

Pius Leuba

Team

«Every new order is an exciting challenge. I enjoy satisfying our customers' needs with our high quality standards. Regardless of whether it is a short consultation on site or a large project with complex measurements and modeling - even with more than 15 years of experience in acoustics, no project is the same and the motivation is constantly high!»

Andreas Schluep

Team

«What I appreciate most about G+P is the wide range of building physics topics that we are able to deal with on a daily basis as part of an outstanding team. It is a personal concern of mine to support and accompany our customers every day on their way to greater energy efficiency and sustainability. In this way, I can make a personal contribution to a ‘greener’ world of tomorrow, both for the general public and for my two small children, for whom I have plenty of time thanks to my ‘daddy day’ and 80% workload.»

David Karlicek

Team

«Thanks to G+P, I have the opportunity to develop my skills in a dynamic and friendly professional environment. The projects I'm involved in are varied and stimulating, offering the chance to make tangible improvements to the daily lives and quality of life of many people by protecting them from noise pollution.»

Antoine Thévenaz

Team

«At G+P, I can ideally combine my passion for environmental and sustainability topics with my professional skills from the finance & HR world. In the meantime, it's always a pleasure to work alongside an enthusiastic and motivated team every day, offering assistance and support to colleagues from different departments.»

Erich Marti

Team

«Working with and for different clients allows me to gain insight into a wide variety of fields of activity. At G+P itself, we work in interdisciplinary teams across the various specialist areas to find solutions. The focus is often on the goal of providing more peace and quiet for the population. I also really appreciate the fact that I can work in several branches and at home, and that the PC-heavy work is always broken up by measurement work outside with the CPX drivers, alone and with office colleagues.»

Maria Burger

Team

«The welcome that G+P gave me when I arrived at 2022 was overwhelming. I immediately felt at home in the company. The projects are varied and very interesting and the people at G+P are always willing to collaborate and help, which is the strength of our team.»

Nadège Marchiando

Team