
AQUACULTURE
ROV support for fish farming and subsea aquaculture infrastructure.

Norsub AS — Subsea technology
Purpose-built ROV technology for horizontal and vertical drilling in subsea rock.
6 M
HORIZONTAL DRILLING
6 M
VERTICAL DRILLING
The technology
Norsub has developed a custom-built ROV system for specialized drilling in subsea rock.
The system enables drilling up to 6 metres horizontally into underwater rock formations and up to 6 metres vertically into rock beneath the seabed.
Rather than adapting a conventional ROV to the operation, the platform has been developed around the requirements of demanding subsea drilling.
Two drilling orientations
Up to 6 metres into subsea rock.
Up to 6 metres down into subsea rock.
The ROV
A custom-built platform designed around demanding subsea operations and specialized rock drilling — not a standard inspection ROV with a drill mounted on it.

01 / 03
Specialized equipment for deep drilling in subsea rock.
Depth of penetration
INTO SUBSEA ROCK.
0.0 M PENETRATION
Capabilities
Our technology, equipment and experienced personnel can be deployed across a range of demanding subsea operations.

ROV support for fish farming and subsea aquaculture infrastructure.

Inspection, support and specialized operations involving subsea cables.

Visual and technical inspection of underwater infrastructure and installations.

ROV-supported installation, tooling and subsea intervention.

ROV operations requiring specialized equipment or operational approaches.

Development and adaptation of tooling for unusual or demanding underwater challenges.
HSEQ
Norsub AS is committed to maintaining high standards for quality, health, safety and environmental care across all subsea operations.
The objective of our quality management is to deliver subsea services in accordance with contractual requirements and applicable regulations. All personnel are responsible for following documented procedures and working continuously to improve quality.
Health and safety are of prime importance. Norsub AS conducts operations with the aim of avoiding harm to employees and others affected by our activities, and maintaining high standards of occupational health and safety.
Our environmental policy demonstrates the company's commitment to carrying out operations in an environmentally sound manner. We handle equipment, materials and operations onshore and offshore with care for the environment, personnel and stakeholders.
70+ YEARS
COMBINED EXPERIENCE
Behind Norsub is a team with more than 70 years of combined experience from subsea and marine operations.
Our experience combines practical subsea operations with the development of specialized equipment designed to solve real operational challenges.
Our approach
Every subsea challenge is different.
Norsub combines specialized ROV technology, operational experience and custom tooling to develop solutions around the operation.
01
Understand the operation.
02
Develop or adapt the solution.
03
Configure the ROV and tooling.
04
Mobilize the system.
05
Execute the subsea operation.
About Norsub
Norsub AS is a Norwegian subsea company specializing in subsea rock drilling and demanding ROV operations.
At the core of our capabilities is a custom-built ROV platform capable of drilling up to 6 metres horizontally and vertically into subsea rock.
Beyond drilling, Norsub provides ROV services for aquaculture, subsea cables, inspections, installations and specialized underwater operations.
Our team brings more than 70 years of combined subsea and marine experience.
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