What MacArtney does

MacArtney A/S (MacArtney Group), headquartered in Esbjerg, Denmark, and founded in 1978, designs, manufactures, supplies, and services underwater technology products and systems for harsh subsea environments. Its portfolio is organized across Connectivity (SubConn, TrustLink, OptoLink, GreenLink MV/HV, DOMUS, plus represented brands GISMA, ODI, and Moog Focal), Data Acquisition (LUXUS cameras and LED lights, EMO multiplexers including Nano/Mini-T/Omni/NEXUS 8, ROTV systems FOCUS 2/3 and TRIAXUS, plus represented brands EdgeTech, Kongsberg Discovery, Teledyne Valeport, and Sea-Bird Scientific), Workshop Solutions (moulding, cable assembly, fibre termination, electronics, hydrostatic pressure testing), and Support & Training (after-sales service, calibration, maintenance, ROTV and slip ring service programs). The platform architecture pairs proprietary components with distributed third-party brands, enabling MacArtney to deliver integrated surface-to-seabed systems rather than standalone parts. Certifications include ISO 9001 and ISO 45001.

MacArtney serves three primary vertical segments — Marine & Offshore (oil and gas offshore operators, ROV/diving/survey contractors, renewable energy), Ocean Science (research institutes and polar expeditions), and Naval (naval forces for defense and rescue) — via a direct enterprise sales motion combined with a global representative network. The company holds ISO 9001 and ISO 45001 certifications and is actively operating as a going concern, with recent product, geographic, and leadership moves in 2024–2026 (TrustLink Hybrid connector launch, CCO appointment, new Gothenburg office, ELWAVE MOU, Export Award 2025).

Revenue is generated through hardware sales (proprietary and represented subsea components and integrated systems) plus professional services (aftermarket service, calibration, maintenance, workshop/cable assembly, and hydrostatic testing). Pricing is not publicly disclosed and is handled through direct B2B sales enquiries, consistent with an industrial systems vendor selling into offshore operators, navies, and research institutes rather than a transactional or self-serve model.

Name

MacArtney

Legal name

MacArtney A/S

Website

https://macartney.com

Company type

Private

Founded year

1978

Operating status

Operating

Headcount range

251–500 employees

Short description

MacArtney designs, manufactures, and services underwater technology products and systems — including subsea connectors, multiplexers, ROTVs, cameras, and fibre optic solutions — for offshore operators, ROV/survey contractors, ocean science institutes, and navies worldwide, since 1978.

Ownership category

akta.pro rank

Product category

Underwater Technology / Subsea Equipment

NAICS

Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing (334511), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (33451), Fiber Optic Cable Manufacturing (335921)

SIC

Search, Detection, Navagation, Guidance, Aeronautical Sys (3812), Optical Instruments & Lenses (3827), Electronic & Other Electrical Equipment (No Computer Equip) (3600)

akta.pro primary industry

Unmanned Underwater Vehicles (UUV) & Autonomous Subsea Platforms (IMABAIAF)

akta.pro secondary industries

Unmanned Underwater Vehicle (UUV) & Autonomous Submersible Manufacturing (IMAJAOAC), Subsea Cable System Supply & Manufacturing (Wet Plant: Cable/Repeaters/Branching Units) (HDAIALAE)

Keywords

• Underwater technology products
• Subsea connectors
• Underwater data acquisition
• Offshore connectivity systems
• Subsea fibre optics

Headquarters

HQ city

Esbjerg

HQ country

Denmark

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Underwater Technology Products and Systems: Design, manufacture, supply, and service of underwater technology products and systems including connectors, data acquisition equipment, cameras, and subsea components. Revenue generated through direct product sales to industrial customers.
2. Aftermarket Service and Support: Global after-sales service, calibration, maintenance, and repair services for installed equipment including ROTV service programs and slip ring maintenance.
3. Workshop Solutions: Moulding and cable assembly, fibre optics termination, electronics services, and hydrostatic pressure testing.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

MacArtney designs and manufactures underwater technology products and systems for harsh subsea environments, spanning subsea electrical and fibre optic connectors (SubConn, TrustLink, OptoLink, GreenLink), data acquisition equipment (LUXUS cameras and lights, EMO multiplexers, ROTV systems), and workshop and after-sales services. The company sells these products alongside represented brands (Moog Focal, ODI, GISMA, EdgeTech, Kongsberg Discovery, Teledyne Valeport, Sea-Bird Scientific) to oil and gas offshore operators, ROV/diving/survey contractors, renewable energy companies, ocean science institutes, and naval forces worldwide.

Product overview

MacArtney is a global supplier of underwater technology products and systems, operating since 1978, with a platform-plus-modules architecture consisting of four main divisions: Connectivity, Data Acquisition, Workshop Solutions, and Support and Training. The Connectivity division centers on the SubConn connector brand (its flagship product line with multiple series including Circular, Micro, Low Profile, Metal Shell, Power, Data, Coax, Nano, and Penetrator types), supplemented by TrustLink (Power/Signal, Data, Coax, Hybrid), OptoLink (fibre optic connectors), GreenLink (MV & HV), DOMUS, and represented brands (GISMA, ODI, Moog Focal). The Data Acquisition division offers LUXUS cameras and lights, EMO multiplexers (Nano, Mini-T, Omni, NEXUS 8), ROTV systems (FOCUS 2, FOCUS 3, TRIAXUS), plus represented products from EdgeTech, Kongsberg Discovery, Teledyne Valeport, and Sea-Bird Scientific. Workshop Solutions covers moulding, cable assembly, fibre optics, and hydrostatic testing. Support and Training provides global after-sales service, calibration, and maintenance.

Differentiator

Problem solved

Functional benefit

Brands

• SubConn: Subsea connector series including Circular, Micro Circular, Low Profile, Metal Shell, Power, Data, Coax, Nano, and Penetrator series for underwater connectivity applications.
• TrustLink
• OptoLink
• GreenLink
• DOMUS
• LUXUS

Products and services

• SubConn Underwater Connectors MacArtney's flagship brand of underwater electrical connectors, offering a comprehensive range of subsea connector series (Circular, Micro Circular, Low Profile, Micro Low Profile, Metal Shell, Power, Data, Coax, Nano, Penetrator) with polyurethane cables and accessories for subsea applications.
• TrustLink Underwater Connectivity Family of underwater connectivity solutions including Power/Signal, Data, Coax, Hybrid, and API variants designed for subsea applications.
• OptoLink Fibre Optic Connectors Fibre optic connectivity solutions including Fibre Optic Connectors, Single-Fibre Connectors, Fibre Penetrators, and Dualway Water-Blocked Fibre Penetrators for underwater optical data transmission.
• GreenLink MV & HV Subsea Power Distribution Medium Voltage (MV) and High Voltage (HV) inline terminations and hubs (GreenLink MV Inline Termination, GreenLink HV Inline Termination, GreenLink Hub, GreenLink HV Hub) for subsea power distribution applications.
• DOMUS Seabed Operations System System for seabed operations serving Naval, Ocean Science, Marine & Offshore, and Subsea Frames applications.
• LUXUS Underwater Cameras and Lights Underwater camera systems (Compact PUR, Compact, Compact Long Line Driver, Compact Low Light, Compact IP, HD Inspection) and LED lighting products (Compact PUR LED, Compact LED, Power LED, High-Power LED) for subsea imaging.
• EMO Multiplexers for Underwater Telemetry Underwater telemetry and data multiplexing products including EMO Nano, EMO Mini-T, EMO Omni, and NEXUS 8 multiplexers for subsea data communication.
• ROTV (Remotely Operated Towed Vehicle) Systems Remotely Operated Towed Vehicle systems including FOCUS 2, FOCUS 3, and TRIAXUS for underwater survey, inspection, and detection operations.
• Moog Focal Slip Rings and Rotary Joints (Distributed) Distributed Moog Focal product line including Electrical Slip Rings, Fibre Optic Rotary Joints, Condition Monitoring systems, FPS Products (swivels), and Fluid Rotary Unions for rotating underwater applications.
• ODI Subsea Connectivity Products (Distributed) Distributed ODI product line including Active Flying Leads, Cable Terminations, Electrical Dry/Wet Mate Connectors, Hybrid Connectors, Optical/Hybrid Wet Mate Connectors, Penetrators, Subsea High Power Systems (10kV, 15kV), and Subsea Jumpers/Harnesses.
• GISMA Connector Series (Distributed) Distributed GISMA connector series (10, 16, 34, 35, 40, 80) for underwater connectivity applications.
• EdgeTech Sonar Systems (Distributed) Distributed EdgeTech sonar and acoustic products including Combined Sonars (2205, 2050, 2300, 6205s2), Side Scan Sonars (4205, 4125i), and Sub-bottom Profilers (eBOSS, 3400, 3400-OTS).
• Kongsberg Discovery Sonar Products (Distributed) Distributed Kongsberg Discovery products including Scanning Sonar, Altimeter, M3 Sonar, HISAS2020 ACR 80 Synthetic Aperture Sonar, and EM2042 Multibeam Echo Sounder.
• Teledyne Valeport Oceanographic Instruments (Distributed) Distributed Teledyne Valeport instruments including Current Meters, Tide Gauges, CTD instruments, Echo Sounders, Sound Velocity Sensors/Profilers, Optical Sensors, and Ocean Engineering solutions.
• Sea-Bird Scientific Oceanographic Instruments (Distributed) Distributed Sea-Bird Scientific oceanographic instruments including SBE 911plus CTD, SBE 19plus/25plus profilers, SBE 32 Carousel Water Sampler, and various sensors (temperature, conductivity, dissolved oxygen).
• MacArtney Subsea Accessories Subsea accessories including the MacArtney oil-filled junction box, MacArtney Stress Terminations, MacArtney FITA, and MacArtney API FITA.
• Stock Subsea Cables Stock subsea cable range including coax hybrid cables, power & data cables, power/signal cables, data cables, fibre cables, fibre hybrid cables, and special cables.
• Workshop Solutions MacArtney workshop services including moulding and cable assembly, fibre optics termination, electronics services, and hydrostatic pressure testing for subsea systems.
• Support, Calibration, and Training Services Global after-sales service, ROTV service programmes, calibration and maintenance services, and slip ring repair and maintenance for installed subsea equipment.

Named customers1 record

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

One partnership is on record.

• ELWAVEminorStrategic or Co-development Partner · 14 April 2026MacArtney and ELWAVE signed a Memorandum of Understanding (MOU) for potential strategic collaboration in underwater technology solutions.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Marshall Underwater Industries: Marshall Underwater Industries manufactures subsea connectors, cable assemblies and polyurethane-jacketed cables — directly competing with MacArtney SubConn in harsh-environment underwater connectivity for offshore, naval and oceanographic applications.
• Sonardyne: Sonardyne manufactures underwater acoustic positioning, navigation, communication and imaging systems — directly comparable to MacArtney's data-acquisition stack (ROTVs, EMO multiplexers, represented sonars from EdgeTech/Kongsberg) for offshore survey, naval and ocean-science customers.
• BIRNS Inc. BIRNS designs and manufactures underwater electrical connectors, lighting and penetrators — directly comparable product lines to MacArtney's SubConn, LUXUS and OptoLink portfolios — serving the same offshore energy, naval and ocean-science customer base.
• Impulse Subsea: Impulse Subsea designs and manufactures subsea wet-mate connectors and distribution systems for offshore renewables and oil & gas — comparable to MacArtney's TrustLink and GreenLink inline termination and high-power hub products.
• Hydro Group (Balmoral Comtec): Hydro Group manufactures subsea electrical and fiber-optic connectors, cable assemblies and penetrators for harsh environments — a direct analogue to MacArtney's SubConn, TrustLink and GreenLink product lines, targeting the same offshore wind, oil & gas and defense markets.

Broad incumbents

• Teledyne Marine: Teledyne Marine is a broad underwater instrumentation portfolio (parent of Teledyne Valeport, which MacArtney represents). It sells sonar, imaging, instruments and connectors end-to-end — overlapping MacArtney's data-acquisition and connectivity divisions, including some represented-brand lines.
• Saab Seaeye: Saab Seaeye designs and manufactures electric and hydraulic remotely operated vehicles (ROVs) — a broad-incumbent competitor to MacArtney's ROTV / TRIAXUS product lines for underwater survey, inspection and intervention in offshore energy and defense markets.
• Kongsberg Discovery: Kongsberg Discovery manufactures multibeam sonars, sub-bottom profilers and underwater acoustic systems, which MacArtney represents and integrates with its own ROTVs and EMO multiplexers — a broad incumbent whose products both complement and compete with MacArtney's data-acquisition offering.
• Forum Energy Technologies: Forum Energy Technologies supplies subsea vehicles, intervention tooling and offshore equipment to the global oil & gas and renewables industries — broadly comparable to MacArtney's marine/offshore segment exposure, though primarily a vehicle/tooling provider rather than a connector specialist.
• SEACON (TE Connectivity): SEACON, now part of TE Connectivity, is the largest specialty subsea connector and underwater cable assembly manufacturer globally — a broad incumbent competitor to MacArtney's SubConn portfolio with deeper R&D budgets and bundled subsea system offerings.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/MacArtney-Underwater-Technology-151180704997618
• LinkedInlinkedin.com/company/macartney-as
• Xx.com/macartneygroup

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 MacArtney