Lifecycle engineering partner
Critical infrastructure.
Built, protected
and extended.
Built, protected
and extended.
Rapid response. Reduced costs. Lasting results.
SIGRA is the industry's material-independent problem solver. Steel, aluminum, thermoplastic and composite — delivered by cross-trained personnel under one contract. Integrated deliveries. Lower costs. Lasting results.
What we do
We build, protect and extend
The right material for every job. The right company for every discipline.
BuildFrom engineering to finished delivery
Pipe fabrication, composite structures and steel in PE, PP, PVDF, GRE and GRP. In-house PE pipe production — shorter lead times and better quality control.
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ProtectAgainst corrosion, wear and downtime
FROSIO surface treatment, technical insulation and the Oxiblast robot. No entry into confined spaces — the operator works from a safe distance.
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Extend15–25 years of extended service life
Pipe rehabilitation, GRE upgrades and trenchless CIPP. 40–70% lower cost than full pipe replacement. Reduced production downtime.
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REFERENCES
Documented results across segments
Photo: EquinorOFFSHORE · PIPELINER
NCS operator 2024
DN600 and DN400 internal pipe rehabilitation. Equinor TR3016 pre-approved. Carried out without production downtime.
Reduced
operational downtime
Capex
reduction
Photo: Olav Opheim / Wind Naval ArchitectsMARITIME · HERDE KOMPOSITT
Brim Explorer
Fully electric carbon-fiber trimaran, 27 meters, 200 pax.
Energy-efficient
The goal is to build the world's most energy-efficient vessel in its segment
Carbon-fiber hull
Provides low weight, low maintenance costs and a long service life
MUNICIPAL WATER & WASTEWATER · PIPELINER
Bergen Municipality 2025
400m of DN400 drinking-water pipe rehabilitated using the DieDraw™ method.
No-dig solution
Full rehabilitation from the inside
40–70%
Lower cost than full pipe replacement
Market segments
We deliver across five markets
Integrated expertise tailored to each segment's requirements and approval level.
Offshore and industry
Pipe rehabilitation and GRE.
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Maritime
GRP newbuild, maintenance and pipe rehabilitation.
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Aquaculture
Integrated EPC — GRP tanks, GRE pipe and steel.
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Defence
Precision composite structures.
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Municipal Water & Wastewater
Trenchless CIPP.
See solutions →The people
Expertise with a name and a face
Six companies, one professional community. Meet the people who do the job — and hear how they solve it.
Odd Einar Magnussen
SIGRA · CEO
Odd Einar Magnussen shows how combining unique expertise across the companies creates a complete, differentiated offering.
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Thomas Aarsand
KB Stålindustri · Build
Thomas Aarsand shows how flexibility, broad expertise and collaboration deliver efficient projects from start to finish.
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Tor Heggernes
Pipeliner · Extend
Tor Heggernes shows how Pipeliner's sustainable pipe renewal and collaboration deliver cost-effective solutions and greater customer value.
See the full story →250+
Skilled workers and specialists
12 years
Average tenure
18
Apprentices in the group
14 trades
Trade certificates represented
The group
Six companies. One platform.
Individually proven. Collectively stronger.
KB Stålindustri
Steel, welding, insulation, pipefitting
Karmøy
Pipeliner
Pipe rehabilitation, tank renewal, Oxiblast
Bergen
Herde Kompositt
Composite structures — vessel hulls and aquaculture
Årsnes
Odda Plast
Thermoplastic, GRE, composite, electrical
Odda
OP Industriservice
Cathode plates for the metallurgical industry
Odda
Odda Service
Skilled labour and operations services
Odda
Selected clients
Equinor
Boliden
Aibel
Aker Solutions
Halliburton
Kongsberg
Elkem
Transocean
Vår Energi
Mowi
COSL
KCA Deutag
Contact
Book a meeting
Concrete measures. One supplier. Cross-trained personnel. Integrated deliveries.
No obligation · Digital or on-site
