
Segment
Defence — precise deliveries
for demanding environments
for demanding environments
SIGRA supplies composite structures, process piping systems and special components to the defence and maritime security industry. We operate under NDA, understand AVL/AML processes, and deliver documented traceability per component.
50+ yrs
Composite industry experience
Herde Kompositt has delivered precise composite structures to demanding industrial applications since the 1970s
NDA
Confidential deliveries
We are familiar with supplier qualification processes in the sector
Fast
Engineering response
From inquiry to technical feedback — material selection, tolerance requirements and production validation
SIGRA's position
West Norway-based industrial expertise for demanding defence deliveries
SIGRA supplies the defence sector through two channels: Odda Plast as an established subcontractor for composite structures and piping systems to the Norwegian defence industry, and Herde Kompositt as a manufacturer of precise GRP/CRP structures for maritime applications.
We understand the rules of the game in this sector — NDA deliveries, AVL/AML qualification, traceability documentation and tolerance requirements that differ from standard industry specifications. Material selection, production validation and documentation are adapted to the customer's requirements.
We understand the rules of the game in this sector — NDA deliveries, AVL/AML qualification, traceability documentation and tolerance requirements that differ from standard industry specifications. Material selection, production validation and documentation are adapted to the customer's requirements.

Capabilities
What we can deliver to the defence sector
Complementary capabilities — composites, piping, steel and documentation under one roof.
Precise composite structures
Herde Kompositt · GRP, GRV and CRP for demanding maritime and industrial applications. Vacuum moulding in our own halls. Tolerance requirements adapted to the customer's specifications.
Acid-resistant piping systems
Odda Plast · PE, PP, PVDF and GRE for demanding process environments — explosives handling, chemicals and seawater. Complete system from manufacturing to installation.
Steel structures and pipefitting
KB Stålindustri · Structural steel work, pipefitting and industrial assembly for shipyards and special projects. EN 1090-EXC2 and ISO 3834-2. Orbital GTAW.
Documentation and confidentiality
Complete traceability documentation per component. Operates under NDA. ITP/QCP adapted to the customer's system. Documented through the entire production chain.
One contracting partner. SIGRA coordinates all capabilities, manages interfaces and delivers documentation per component — under NDA where required.
Companies involved
Three companies. Complementary capabilities.
Herde Kompositt
GRP/GRV/CRP precise structures. Vacuum moulding. NDA deliveries. Årsnes, Vestland.
Odda Plast
Acid-resistant piping systems and composite components. Subcontractor to the Norwegian defence industry. Odda.
KB Stålindustri
Steel structures and pipefitting. EN 1090-EXC2. Orbital GTAW. Karmøy, Vestland.
Markets and applications
Where we deliver in the defence sector
Maritime defence
Vessel and submarine programmes
GRE piping, GRP components and steel structures for maintenance and newbuild. Shipyard deliveries that do not require direct FMA contracting. Westcon Yards and similar.
Defence industry
Subcontracting to prime contractors
Composite structures and piping systems as a subcontractor to Norwegian and international prime contractors. Familiar with AVL/AML processes and offset requirements.
Defence estate and facilities
Infrastructure for defence facilities
GRE piping, GRP tanks and steel structures for maintenance, submarine facilities and process plants. Haakonsvern and similar. Registered with Forsvarsbygg and FMA.
How we work
From first contact to documented delivery
All initial dialogue can be conducted under a confidentiality agreement. We support the customer through AVL/AML qualification and deliver complete traceability documentation per component.
01
First contact under NDA
All initial dialogue can be conducted under a confidentiality agreement. We sign NDAs from day one if the customer requires it.
02
AVL/AML qualification
We support the customer through the approval process — technical documentation, proof of capability and production validation adapted to the customer's system.
03
Delivery with full traceability
Complete documentation package per component. Material selection, production date, inspection reports and ITP/QCP in accordance with the customer's requirements.
Confidential from first contact
All inquiries are treated confidentially. An NDA can be signed before technical dialogue begins.
Considering SIGRA as a supplier?
We're happy to have an initial conversation — under NDA if desired. Describe the application, and we'll come back with an assessment of capability and approach.
Composite structures and maritime
Audun A. Dahl — Herde Kompositt
Piping systems and composite components
Leif Gunnar Opedal — Odda Plast
Composite, Polymer, Defence, Offshore & Industry
Morten Jacobsen — Odda Plast
All inquiries are treated confidentially. An NDA can be signed before technical dialogue begins.
