Csub

We have a pragmatic and innovative approach and channel a lot of our resources towards R&D. A single cover can protect several pipelines.

CSUB is a leading developer and manufacturer of Composite Subsea Products and Solutions

CSUB can provide all types of composite related products to the offshore subsea market according to relevant standards as NORSOK DNV-OS-C501 Offshore Components. Our main focus is to develop solutions where composites, both from technical and commercial perspective, can replace traditional steel structures. CS

UB products all have the following advantages over steel: Lower cost, lower installation weight - typically 1/3, stackable - saving deck space and minimising offshore vessel campaigns, wet storage - ready for final inspection at a later stage, non corrosive materials with over 50 years lifetime, high impact resistance - tested up to 300kJ. Our GRP products are extremely strong and can be designed with over 20m free span. From the start in 2003 CSUB has grown to become the major player in the supply of composites to the Norwegian Subsea Market. Our production techniques and facilities enable us to produce composite parts up to very large structures as well as custom made smaller parts. CSUB has produced more than 500 GRP Protection structures to the subsea market since 2005, ranging from hatches/small covers of 300 kgs up to large GRP Protection structures close to 50 tonnes.

18/06/2026

Crossings, protection covers, foundations and support structures are never really one-size-fits-all. That is why we work with project-specific GRP solutions. By adapting each structure to the actual application, it becomes possible to improve installation efficiency and reduce lifecycle burden over time. Contact us to discuss your project 📲 https://csub.com/contact/

10/06/2026

Corrosion is not something to be managed later ❌ It should be part of the discussion from the very beginning. Material choice influences service life, maintenance exposure and the long-term burden a structure brings with it. Non-metallic alternatives like GRP offer greater durability and lower maintenance over time. Learn more here 👉 https://csub.com/grp/

04/06/2026

In subsea projects, weight affects more than transport 🌊 Lower weight can mean smaller cranes, smaller vessels and fewer installation campaigns offshore. That is why GRP is an attractive choice in applications where reducing offshore installation cost and lifecycle risk is a priority 🥇

20/05/2026

It is tempting to focus only on installation cost when evaluating a subsea structure. But just as importantly, it should also be assessed by what it may cost to live with over the next 20, 30 or 50+ years ⏳CSUB’s GRP structures are designed for 50+ years of service life. Because the material is not subject to metallic corrosion, it can help reduce lifecycle burden and support a stronger total cost of ownership over time.

13/05/2026

In subsea projects, the material itself is only part of the solution. Much of the real value comes from how early the structure is adapted to project requirements, installation method, transport logic, interface conditions and long-term operating demands. That is where co-engineering matters. At CSUB, each structure is developed around the specific project rather than taken off the shelf. Our engineering team works directly with clients on design optimisation, value engineering and fast-track delivery to help ensure the structure is not only technically right, but also practical to fabricate, transport and install. Learn more about our engineering approach 🌐https://csub.com/engineering/

05/05/2026

Substantially above NOK 100 million — and gaining ground in new markets 👏 In Q1, we signed contracts exceeding NOK 100 million in total. Seeing this happen across new markets makes the milestone even more meaningful for us. It shows that we are moving in the right direction and building momentum in new markets alongside our existing ones 🙌

29/04/2026

Subsea projects are local in ex*****on, but global in demand 🌍 CSUB operates from its engineering headquarters in Norway, supported by manufacturing capacity across multiple sites and regional production through partners. For offshore clients, that can mean shorter transport distances, greater delivery flexibility and better support across different project regions.

20/04/2026

What if your subsea support structures could be installed with smaller cranes, fewer vessel campaigns and better deck utilization — while delivering 50+ years of corrosion-free performance? 🙌 That is what CSUB delivers. Read more about how GRP reduces subsea cost and risk 👉 https://csub.com/reducing-subsea-installation-cost-vessel-requirements-and-lifecycle-risk-worldwide/

15/04/2026

With 500+ deliveries worldwide, we have worked across a broad range of subsea projects and applications 🌊 Our GRP structures are developed around practical installation conditions, project requirements and long-term lifecycle considerations. See recent projects: https://csub.com/latest-news/

07/04/2026

H₂S is one of the most demanding corrosion challenges in oil and gas 😥 In metallic systems, sour-service conditions can increase the risk of cracking, degradation and reduced long-term reliability. That is why material choice becomes especially important in demanding offshore environments.
GRP structures provide a non-metallic alternative, making them particularly relevant in applications where corrosion resistance and long service life are key requirements. Read more about the benefits of GRP: https://csub.com/grp/

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Skytebanen 14
Arendal
4841

Nettsted

https://csub.com/

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