STS Gruppen

What STS Gruppen does

STS Gruppen, operating under the legal entity StS-ISONOR AS, is one of Norway's largest industrial contractors specializing in ISO trades — insulation, scaffolding, surface treatment, modification, and industrial maintenance. Headquartered in Bergen with a workforce of 501-1,000, the company delivers services to four distinct end-markets: Energy (offshore oil and gas), Building & Construction, Land-based Industry (including shipyards and petrochemical facilities), and Maritime Industry (including aquaculture and offshore installations). With more than 50 years of operating history, STS Gruppen positions itself as a multi-disciplinary trade specialist rather than a generalist contractor, combining on-site craft execution with planning capabilities such as 3D modeling for facade scaffolding and rigging access solutions.

The company's business model is project-based B2B services revenue, earned through tendered and negotiated contracts with industrial asset owners, EPC contractors, shipyards, and large construction principals in Norway. Core deliverables include 3D-modeled scaffolding design, rigging and access engineering, fire sealing and insulation, surface treatment, and concrete renovation. In May 2026 the company extended its offering beyond pure services through a partnership with Metodos to commercialize the ALLWIN FP product line, signaling an intent to capture recurring and productized revenue alongside traditional project work. Government engagement, including ministerial site visits in 2026, indicates active positioning on industrial-workforce policy.

STS Gruppen does not disclose financials publicly, and there is no evidence of external funding rounds, M&A activity, or AI/ML investment. Its growth strategy as evidenced in 2026 centers on capacity expansion through continued recruitment, sector diversification across maritime and aquaculture adjacencies, and selective productization of niche industrial solutions.

Name

STS Gruppen

Legal name

StS-ISONOR AS

Website

https://stsgruppen.com

Company type

Private

Founded year

1970

Operating status

Operating

Headcount range

501–1,000 employees

Short description

STS Gruppen is a Bergen-based Norwegian industrial contractor delivering insulation, scaffolding, surface treatment, and maintenance services across offshore energy, construction, land-based industry, and maritime sectors.

Ownership category

akta.pro rank

Product category

Industrial Maintenance and Modification Services

NAICS

Building Equipment Contractors (2382)

SIC

Construction - Special Trade Contractors (1700)

akta.pro primary industry

Fire Protection Systems Contracting (Sprinklers, Alarms, Suppression) (IMAFALAD)

akta.pro secondary industry

HVAC & Refrigeration Contracting (IMAFALAB)

Keywords

• Industrial insulation services
• Scaffolding and access solutions
• Offshore maintenance services
• Industrial surface treatment
• Fire sealing and insulation

Headquarters

HQ city

Bergen

HQ country

Norway

HQ region

Europe

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Technology or R&D, Marketing or Sales

Distribution channels1 record

Marketing channels2 records

Core offering

STS Gruppen (StS-ISONOR AS) is one of Norway's largest contractors in the ISO trades (insulation, scaffolding, and surface treatment), delivering maintenance and modification services to industrial clients across offshore energy, building and construction, land-based industry, and maritime sectors. The company operates as a multi-disciplinary total contractor (totalentreprenør) covering the full project lifecycle from onshore engineering to offshore hook-up and completion, with offerings spanning 3D facade scaffolding modeling, rigging and access, fire sealing and insulation, and concrete renovation.

Product overview

StS-ISONOR is one of Norway's largest contractors within the ISO trades (ISO-fagene), offering a comprehensive range of maintenance and modification services. The company operates as a multi-disciplinary organization serving sectors including Energy (offshore oil and gas), Building and Construction, Land-based Industry (shipyards and petrochemical plants), and Maritime Industry. Core service offerings include 3D modeling facade scaffolding, rigging and access solutions, fire sealing and insulation, and concrete renovation. The company is also developing and commercializing the ALLWIN FP product in partnership with Metodos for maritime/offshore applications. With over 50 years of experience, StS-ISONOR delivers future-oriented and cost-effective solutions from onshore engineering through to offshore hook-up and completion.

Differentiator

Problem solved

Functional benefit

Products and services

• Maintenance and Modification Services (Vedlikeholds- og modifikasjonstjenester) Comprehensive maintenance and modification services delivered as a total contractor for industrial clients, covering the full project lifecycle from onshore engineering to offshore hook-up and completion. Targeted at enterprise operators in offshore energy, building and construction, land-based industry, and maritime sectors.
• 3D Modeling Facade Scaffolding (3D modellering fasadestillas) Advanced 3D modeling service for facade scaffolding solutions, supporting construction projects in both the building and operational phases. Targeted at construction-sector clients requiring engineered access solutions.
• Rigging and Access (Rigging og tilkomst) Professional rigging and access solutions for construction and industrial projects, providing safe working access in challenging environments.
• Fire Sealing and Insulation (Branntetting og isolering) Fire sealing and insulation services covering passive fire protection and thermal/acoustic insulation for construction and industrial projects. Targeted at clients requiring certified ISO-trade expertise for regulatory and safety compliance.
• Concrete Renovation (Betongrenovering) Concrete renovation services for building and construction sector projects, addressing structural repair and refurbishment needs.
• ALLWIN FP A maritime/offshore-sector product being further developed and commercialized in collaboration with strategic partner Metodos. Specific functionality and target customer details are not fully disclosed in the source.

Segments4 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

One partnership is on record.

• MetodoscoreStrategic or Co-development Partner · 29 May 2025Metodos and StS-ISONOR entered into a collaboration for the further development and commercialization of ALLWIN FP (a product or technology platform). This is a strategic partnership aimed at bringing a product to market, indicating co-development and shared commercial interests.

Scale indicators1 record

Recent moves4 records

Expansion highlights3 records

Direct peers

• Beerenberg: Norwegian industrial services contractor providing insulation, scaffolding, surface treatment, and access solutions to offshore oil & gas and onshore industrial clients. Beerenberg is the closest direct peer to StS-ISONOR, competing head-to-head on Norwegian offshore modification and maintenance scopes.
• Kaefer: Global insulation specialist with strong Nordic and offshore presence, offering insulation, scaffolding, surface protection, and passive fire protection to industrial and marine clients. Kaefer directly overlaps with StS-ISONOR's insulation, fire sealing (branntetting), and scaffolding service lines.
• Muehlhan: Surface treatment and passive fire protection specialist serving offshore, maritime, and industrial markets globally. Muehlhan directly overlaps with StS-ISONOR's surface treatment and fire sealing offerings, particularly on offshore wind and marine newbuilds.
• IKM Group: Norwegian privately-held industrial services group providing offshore manpower, subsea, engineering, and maintenance services to the Norwegian oil & gas sector. IKM competes with StS-ISONOR for offshore modification and maintenance work on the Norwegian Continental Shelf.
• TKS Industrial: Norwegian industrial services contractor delivering maintenance, insulation, scaffolding, and modification services to onshore and offshore clients. TKS is a direct competitor to StS-ISONOR in the Norwegian ISO trades market across energy, process, and maritime sectors.

Broad incumbents

• Bilfinger: European-headquartered industrial services provider delivering maintenance, insulation, scaffolding, and modification services to process and energy clients. Bilfinger competes with StS-ISONOR on large industrial maintenance scopes but operates at significantly greater scale and geographic breadth.
• Aker Solutions: Major Norwegian provider of engineering, procurement, construction, and maintenance services to the offshore energy industry. Aker Solutions is a broad incumbent that overlaps with StS-ISONOR on offshore hook-up and modification work but also operates as an EPC contractor at much larger scale.
• Wood: Global engineering and consulting firm with significant energy and industrial services operations, including maintenance and modification work in the North Sea. Wood competes for adjacent scopes to StS-ISONOR but is much larger and asset-light in consulting and engineering.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/sts-isonor
• Facebookfacebook.com/stsgruppen

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about STS Gruppen