Seatrench

What Seatrench does

Seatrench is a Norwegian marine technology company that provides subsea trenching, shore-end landing, installation, diving and survey services for cables, umbilicals, pipelines and flexi pipes in shallow water. Founded between 1995 and 2000 (sources conflict) and headquartered in Engelsviken, Norway, the company targets enterprise customers in the Telecom, Power, Renewable and Oil and Gas industries, with named engagements for McDermott, Subsea 7 and Triasmitra across offshore wind export cables, HVDC interconnectors, fiber optic cables and oil and gas umbilicals and pipelines.

The core technology asset is a proprietary fleet of trenching machines and pumping barges capable of burial to 3 meters top-of-product in sand, silt, gravel and clay with jet-able soil strength up to 200 Kpa and product dimensions up to 1 meter diameter. Key equipment includes the Hermes IV trenching support vessel and a new diverless trenching machine that can start dry from the beach or be launched from vessels, addressing customer and regulatory demands for diverless solutions in shallow water. Survey operations use Innomar technology for pre- and post-burial verification, and diving is delivered to IMCA standards.

The revenue model is project-based professional services under fixed-price or time-and-materials contracts, won through direct enterprise sales and competitive bidding on major subsea infrastructure tenders. Go-to-market is direct engagement with project developers, EPC contractors and utility companies, supplemented by JV partnerships (notably G8 Subsea Ltd in Singapore/India and Synergy UAE in the Middle East and India) that extend regional reach. Mobilization is delivered from wholly-owned regional entities in Norway, Singapore, Taiwan, Philippines, South Korea and the Netherlands, with completed 2024 projects spanning France, Jersey, Belgium, Netherlands, Egypt, India, South Korea and Indonesia. Financial detail is not publicly disclosed.

Name

Seatrench

Legal name

Seatrench

Website

https://seatrench.com

Company type

Private

Founded year

2000

Operating status

Operating

Headcount range

1–10 employees

Short description

Seatrench is a Norway-based marine technology contractor providing shallow water subsea trenching, shore-end landing, installation, diving and survey services for telecom, power, renewable and oil and gas customers worldwide, using a proprietary fleet of trenching machines and pumping barges.

Ownership category

akta.pro rank

Product category

Shallow Water Subsea Trenching Services

NAICS

Other Support Activities for Water Transportation (488390), Support Activities for Water Transportation (4883), Water and Sewer Line and Related Structures Construction (23711)

SIC

Water, Sewer, Pipeline, Comm & Power Line Construction (1623)

akta.pro primary industry

Subsea & Nearshore Civil Works (Trenching, Rock Placement, Mattressing) (IMAFAJAI)

akta.pro secondary industries

Subsea Services & Equipment (Subsea Trees, Umbilicals, Installation, IMR) (EUALABAI), Offshore-to-Shore Interface Construction (Landfalls, Shore Crossings, HDD) (IMAFAJAK)

Keywords

• Shallow water trenching
• Subsea cable burial
• Umbilical pipeline installation
• Offshore wind cable burial
• Shore end landing services

Headquarters

HQ city

Engelsviken

HQ country

Norway

HQ region

Europe

Offices8 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Subsea Trenching Services: Project-based professional services for shallow water trenching operations worldwide. Revenue is generated through fixed-price or time-and-materials contracts for burial of cables, umbilicals, pipelines, and flexi pipe. Services include pre-burial survey, trenching operations, post-burial survey, and shore end landing services.
2. Marine Installation Services: Comprehensive installation support services including PLSE (Post Lay Shore End), pull-in and lowering assistance, and civil works for marine projects.
3. Diving Services: Professional diving services for shallow water and nearshore operations, compliant with IMCA and regional regulations.
4. Survey Services: Pre-burial and post-burial survey services using Innomar technology to ensure project accuracy and verification.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Seatrench provides shallow water subsea trenching and nearshore marine services for the Telecom, Power, Renewable Energy, and Oil and Gas industries. Core operations cover burial of fiber optic cables, power cables, umbilicals, pipelines, and flexi pipe down to 3m top of product in sand, silt, gravel, and clay soils, complemented by shore end landing, installation, diving, and pre-/post-burial survey services executed with a proprietary fleet of trenching machines and pumping barges.

Product overview

Seatrench offers a unified suite of shallow water trenching and nearshore services primarily serving the Telecom, Power, Renewable, and Oil and Gas industries. The core offering comprises shallow water trenching services for cable, umbilical, and pipeline burial, supported by shore end landing, installation, diving, and survey services. The company operates a fleet of proprietary equipment including the Hermes IV vessel and diverless trenching machines, with operations mobilized from facilities in Europe, UAE, and South East Asia. All services are delivered with a focus on HSE compliance and operational efficiency.

Differentiator

Problem solved

Functional benefit

Products and services

• Shallow Water Trenching Services Shallow water subsea trenching operations for burial of fiber optic cables, power cables, umbilicals, pipelines, and flexi pipe in sand, silt, gravel, and clay soils, with burial depths up to 3 meters top of product. Delivered for Telecom, Power, Renewable Energy, and Oil and Gas clients worldwide using Seatrench's proprietary trenching machines, pumping barges, and the Hermes IV support vessel.
• Shore End Landing Services Professional marine, onshore, and diving services for beach and shore side cable lay and installation, supporting shore end cable landing operations in complex nearshore conditions. Includes in-house knowledge of beach and shore side cable lay and installation techniques, delivered as a standalone service or integrated with trenching.
• Installation Services Comprehensive marine installation support services including Post Lay Shore End (PLSE), pull-in and lowering assistance, and civil works for subsea cable, umbilical, and pipeline projects. Suited to enterprise subsea infrastructure programs where trenching must be coordinated with cable lay and termination activities.
• Diving Services Professional diving services for shallow water and nearshore operations, delivered by an experienced in-house dive team with certified equipment and compliance with IMCA (International Marine Contractors Association) standards and regional regulations, with safety as the main priority.
• Survey Services Pre-burial and post-burial hydrographic and geophysical survey services to verify project accuracy before and after trenching operations, utilizing Innomar technology for post-burial verification. Provided to Telecom, Power, Renewable Energy, and Oil and Gas clients as a standalone service or integrated with trenching and installation.

Quantifiable outcome

• 10km cable buried to 2m TOC in single run on South Korea offshore wind project
• +2 more outcomes

Named customers3 records

Segments4 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Two partnerships are on record, tiered core.

• G8 Subsea LtdcoreStrategic or Co-development PartnerJoint venture partner based in Singapore. Collaborated on multiple projects including Vashishta project in India (for McDermott) and Offshore Wind Project in South Korea. G8 Subsea provides complementary subsea expertise for shallow water trenching operations.
• Synergy UAEcoreStrategic or Co-development PartnerJV partner for Middle East and India operations, represented by Mr Ali Qaiser based in Dubai. Provides regional coverage and business development support for the Middle East market.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• DeepOcean: Independent subsea services provider offering trenching, IMR, survey, and installation across offshore wind, oil and gas, and telecom cables. Directly comparable to Seatrench in capability mix and shallow-water cable/umbilical burial scope.
• Global Marine Systems: Specialist subsea cable installation and maintenance contractor serving telecom and offshore wind customers worldwide. Comparable as a direct peer in shallow water fiber optic and power cable burial and shore-end landings.
• MMT Group: Specialist subsea survey, cable route engineering, and trenching contractor with proprietary trenching tools. Comparable to Seatrench in offering survey-led shallow water cable and pipeline burial services.

Emerging players

• N-Sea Group: Subsea cable installation, survey, and trenching provider active across European offshore wind and telecom markets. Comparable because it competes with Seatrench for nearshore cable burial and pull-in scopes.
• Oceanteam Solutions: Specialist provider of subsea installation vessels, equipment, and cable transport and burial services for offshore renewables and interconnectors. Comparable as a niche participant in the shallow water cable burial market.

Broad incumbents

• Van Oord: Major Dutch marine contractor executing offshore wind cable installation, seabed preparation, and trenching as part of integrated offshore wind packages. Comparable as a competitor for offshore wind cable burial scopes where Seatrench also bids.
• Subsea 7: One of the world's largest subsea EPCI contractors, active in offshore pipeline, umbilical, and cable installation including trenching. Comparable because it is both a customer (per Seatrench's selected references) and a competing provider offering integrated scopes that include shallow water trenching.
• Jan De Nul Group: International marine contractor with offshore cable installation, trenching, and seabed preparation services for offshore wind and interconnector projects. Comparable for HVDC and HV export cable burial where Seatrench also competes.
• Boskalis: Global dredging and offshore contractor operating dedicated subsea trenching assets such as Rockpiper for offshore pipeline and cable burial. Comparable because it competes for the same shallow and deep water cable and pipeline trenching tenders as Seatrench.
• Helix Energy Solutions Group: US-listed offshore energy services provider with subsea well intervention, IMR, and trenching-adjacent capabilities. Comparable as a broader subsea services competitor addressing oil and gas and offshore wind operators.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/Seatrench-As-100054202673323
• LinkedInlinkedin.com/company/seatrench-as

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Subsidiaries5 records

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 Seatrench