OneCo AS

OneCo is an industrial group with its core activities focused on the oil and gas sector, infrastructure, industry, renewable energy and construction. We offer multidiscipline services to the Oil and Marine Industry. One of our key strengths is delivering system integrated solutions where we combine different technologies and components to create a final product fit for purpose.

OneCo currently employs 1100 people, has an annual turnover of approximately NOK 2 billion, and is located in Kristiansand, Grimstad, Sandnes, Bergen, Trondheim, Oslo and Drammen. We make sure that our products and services meet customer as well as regulatory requirements, while at the same time optimally safeguarding the safety of our employees.

Management and Project management
Surveys and inspections
Turn-key installations / Full EPIC
Installation and
Supervision – on-/offshore
MC & Commissioning
Document control & LCI
Production monitoring
Mechanical workshop
Rig service including yard stay
Ship / Vessel projects including docking
Electrical and automation systems
Control systems
Modules and cabins
Electrical panels and switchboards
Heat tracing
Control and HMI
Mechanical installations
EX maintenance
Structural prefabrication
Lighting products
Signalling devices
Industrial telecommunication
Industrial ethernet
Main suppliers:
• Hirschmann Automation & Control
• Federal Signal
• Funke+Huster Fernsig
• Atexor
• Technor
Base solutions
Key knowledge within Drilling Equipment and Integrated Systems • Project Management • After Sale & Services • Base Operations with services for Vessels and Drilling Units • Workshop facilities for prefabrication, assembly, testing, installation, refurbishment and modification 

Marine solutions
• Engineering • Construction Supervision • Modifications • Upgrades • Emergency repairs • Commissioning • Partner in operation • Ex solutionsOneCo has personnel with long experience in marine technical installations with expertise in special systems such as the DP class 2 and 3 with its complexity.

Base Sandnes:
Base Kristiansand:
ISPS Terminal • Fenced and protected area • Water front length total: 204m • Water front length reinforced: 54m • Indoor assembly hall, work shop and office facilities
ISPS terminal • Fenced and protected area • Good lift capacity (600 tons + 2 x 90 tons) • Test foundations • Indoor assembly halls, workshop and office facilities • Close to the major equipment suppliers in an attractive area
OneCo AS
Office address: Sagmyra 25, NO-4623 Kristiansand
+47 91 00 91 00