Pilar Byggrådgivning
Consulting engineering firm in Flekkefjord since 1988
Pilar Byggrådgivning assists with the planning, design and follow-up of construction and civil engineering projects. The company was formerly known as Arentz & Kjellesvig, and its six employees are behind several of the most well-known buildings in Flekkefjord.

Photo: Pilar Byggrådgivning
Who we are
Pilar is a consulting engineering firm that assists with the planning, design and follow-up of construction and civil engineering projects.
The company's core expertise lies in project administration, structural engineering, geotechnics and environmental remediation.
Pilar Byggrådgivning changed its company name from Arentz & Kjellesvig in 2022. The firm was founded in 1988 and has since been a solid, local consulting engineering company with a strong reputation in the construction industry. Following a generational shift, we gave the name and profile a new look suited to future operations and development – and became Pilar.
For several decades, the engineering firm Arentz & Kjellesvig has been a well-known player in the local business community in Flekkefjord – among other things through Spira, Flekkefjord Sparebank Arena, Fabrikkgården and Sentrum kindergarten, in addition to a number of other major projects both in Flekkefjord and in other towns.
In short
- Consulting engineering firm in Flekkefjord, founded in 1988 (formerly Arentz & Kjellesvig)
- Six employees with high-level expertise in construction and structural engineering
- Has contributed to well-known projects such as Spira, Flekkefjord Sparebank Arena and Fabrikkgården
- Employee-owned, with a low average age and membership in RIF
- Focused on sustainability and environmental remediation, working towards Eco-Lighthouse certification
Well-known projects: Spira, Flekkefjord Sparebank Arena and more
Pilar in numbers
Young employees and co-owners
Pilar is employee-owned and an independent consulting engineering firm. The average age at the company is low, with 4 of our 6 employees in their 30s. We are members of the Association of Consulting Engineers (RIF) and hold central government approval. We are based in Flekkefjord and have been part of S32 – Strandgaten Competence Centre – since 2000. Of our 6 employees, 5 are men and 1 is a woman. We would welcome more female employees.
All employees at Pilar hold higher education as either engineers or civil engineers within construction and structural disciplines. We also have strong digital skills and use advanced calculation software in our work, among other tools. Pilar is also a founder and co-owner of FotoBIM AS, which specializes in 360° photography and drone imaging.
Forward-looking and environmentally conscious
Pilar is a forward-looking company with a solid reputation in the industry and a large customer network – including both public and private developers, contractors, industry, other consulting firms and private individuals. We also have a broad customer base, with our main focus ranging from Stavanger to Kristiansand.
We focus on sustainability and environmentally responsible execution of construction projects. Through our environmental remediation assignments, we map building materials for reuse – preventing toxic substances that are harmful to health and the environment from spreading into nature. We are also currently working towards Eco-Lighthouse certification.

The team at Pilar
The six employees behind Pilar Byggrådgivning, photographed by the sea in Flekkefjord.
Photo: Pilar Byggrådgivning
Supporting the local community
We are strongly engaged in the local community. Pilar contributes to the realization and execution of both large and small construction projects that all help strengthen the local community. We also sponsor a number of teams, associations and projects.
Working with us
Pilar has a strong working culture, where all employees are given responsibility in construction projects. Several of us work together on projects and engage in professional discussions. We have a flat leadership structure. New employees are assigned a mentor within the company whom they can rely on for professional support.
At Pilar, we have flexible working hours with defined core hours. We focus on collaboration, well-being and strong bonds through memorable experiences. Join exciting company trips and take part in fun team-building activities such as company relay races. We organize social events like padel tennis and dinners, and employees also arrange their own informal get-togethers with activities such as running and forest walks outside working hours.
The company is part of a shared lunch arrangement with the rest of S32, where employees are encouraged to get to know others in the building. The same forum also hosts pizza nights, talks, wine raffles and more.
All employees at Pilar are highly educated and are given responsibility through the projects they oversee. They can work across several disciplines within our core areas. We also invest in further training – to build on existing expertise, to stay up to date with changing requirements, or to gain competence in new fields.
Contact person
Vidar IversenThe place · Flekkefjord
Living in Flekkefjord
The will to grow
Places: Åna-Sira, Andabeløy, Flekkefjord by, Hidra and Sira
Read more about FlekkefjordMessages are sent through Freysta Portal. Membership is free.
Video: Smaabyen Flekkefjord SA
