London Marine Consultants

What London Marine Consultants does

London Marine Consultants (LMC) is a specialist engineering firm focused on turret mooring systems and related offshore infrastructure for floating oil and gas and renewable energy assets. The company designs and supplies disconnectable turret mooring systems, in-house built fluid swivels, and CALM/SALM buoy configurations used to keep FPSOs, FSRUs, FSOs, floating wind turbines, and emerging floating hydrogen/power installations safely moored in deep and ultra-deep water. Over 30+ years in operation, LMC has delivered more than 650 projects to a client base of 150+ operators, EPCs, and developers, and self-identifies as a top-five global provider in turret mooring systems.

The core technology stack centers on the turret mooring system — including the proprietary DISCO BUOY disconnectable mooring buoy for floating wind, in-house engineered high-pressure fluid swivels, and buoy/concept designs validated through physical basin testing. LMC holds type approvals from all major classification societies (DNV, ABS, Lloyds, Bureau Veritas) and delivers across the full project lifecycle: concept design, FEED, detailed engineering, project management, fabrication oversight, and installation support. The product portfolio is being actively expanded from oil and gas mooring into floating wind, tidal power hookups, aquaculture, and floating hydrogen production infrastructure.

LMC operates a project-based engineering services and equipment supply model, winning discrete contracts for turret mooring design and supply on major offshore developments. Contract values vary from smaller FEED and engineering studies to large multi-million-dollar supply agreements, exemplified by the disclosed US$110 million Libra FPSO turret contract with Petrobras (2016). Headquartered in London with a Singapore regional office, the firm was acquired by Yinson Production in January 2024 — aligning it with one of the world's largest FPSO operators while preserving its third-party client franchise.

Name

London Marine Consultants

Legal name

London Marine Consultants Limited

Website

https://londonmarine.co.uk

Company type

Private

Founded year

1993

Operating status

Operating

Headcount range

11–50 employees

Short description

London Marine Consultants designs turret mooring systems, fluid swivels, and disconnectable mooring buoys for FPSO/FSRU operators and floating wind developers, with 650+ projects delivered to 150+ clients globally.

Ownership category

akta.pro rank

Product category

Offshore Mooring and Marine Engineering Services

NAICS

Support Activities for Water Transportation (4883), Other Support Activities for Water Transportation (48839), Ship and Boat Building (3366)

SIC

Water Transportation (4400), Ship & Boat Building & Repairing (3730), Oil & Gas Field Machinery & Equipment (3533)

akta.pro primary industry

Project Management & Owner’s Engineering / Technical Consultancy (Spec Writing, Bid Support, Site Support) (IMAJAGAO)

akta.pro secondary industries

Offshore Marine & Aviation Support (PSVs, AHTS, Crew Boats, Helicopters) (EUALABAJ), Hydrodynamics & Performance Engineering (Resistance, Propulsion, Seakeeping, Maneuvering) (IMAJAGAB), Cargo Handling & Lifting Equipment (Cranes, Derricks, Hoists) (IMAJAIAB)

Keywords

• Offshore mooring systems
• Turret mooring engineering
• Floating wind mooring
• FPSO mooring design
• Marine engineering services

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. EPC Contracts (Engineer, Procure, Construct): Full EPC contracts for turret mooring systems, including complete turret solutions with fluid and power swivels, mooring pull-in systems, piping, utility, electrical and control systems. Turret fabrication and integration is outsourced to shipyards while LMC provides engineering design, procurement management, and project oversight.
2. Owner's Engineer / Project Management Services: Engineering and project management services across the complete project lifecycle from conceptual development and permitting through FEED, detailed design, EPC, offshore installation and commissioning, maintenance, and decommissioning. Includes procurement services supported by ISO 9001 certified procurement protocol.
3. Product and Equipment Supply: Supply of proprietary products including swivel systems (toroidal, axial, inline, utility), power transfer systems, CALM buoys, deep-water offloading buoys, and DISCO BUOY disconnectable mooring systems. Includes subsea risers, power cables, umbilicals, PLEMs, and associated components.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

London Marine Consultants (LMC) is an offshore marine engineering consultancy and EPC contractor that designs, engineers, and supplies turret mooring systems (Internal, External Cantilever, External Column), disconnectable mooring and cable systems (DISCO BUOY), deep water offloading buoys, CALM buoys, power and hydrogen charging buoys, and fluid/power transfer systems for floating offshore units. The firm delivers Owner's Engineer and project development services across the full lifecycle from concept through decommissioning, with in-house swivel development and EPC project execution capability.

Product overview

London Marine Consultants (LMC) is a maritime engineering consultancy and EPC (Engineer, Procure, Construct) contractor offering a portfolio of specialized products and engineering services for the offshore floating energy sector. Its product portfolio centers on mooring and anchoring solutions — including Turret Mooring Systems (Internal, External Cantilever, and External Column variants), DISCO BUOY Disconnectable Mooring Systems, Deep Water Offloading Buoys, CALM Buoys, Power and Hydrogen Charging Buoys, and Fluid and Power Transfer Systems including swivels, risers, power cables, and PLEMs. These are complemented by a suite of engineering services: Owners Engineer/Project Development, Hull and Platform Design, Component Design, Fabrication/Assembly/Loadout/Heavy Lift, Transportation/Towing/Offshore Installation, and Decommissioning. LMC serves sectors spanning offshore oil and gas (FPSO, FSRU, FSO), floating wind, aquaculture, and midstream operations.

Differentiator

Problem solved

Functional benefit

Brands

• DISCO BUOY™: Disconnectable Buoy Mooring System for Floating Wind - a patented, modular disconnectable mooring and cable system enabling controlled disconnection for maintenance operations
• Fluid Swivel Systems

Products and services

• Turret Mooring Systems Complete EPC delivery of turret mooring systems including Internal Turret, External Cantilever Turret, and External Column Turret variants, incorporating fluid and power swivels, mooring pull-in systems, piping, utility, electrical, and control systems. Installed on FPSOs, FSRUs, FSOs, and floating wind platforms at water depths from 45m to 2200m across Brazil, Mediterranean, Malaysia, Thailand, and Vietnam.
• DISCO BUOY Disconnectable Buoy Mooring and Anchoring System Patented disconnectable buoy mooring and cable system for floating wind platforms enabling controlled connection and disconnection of mooring and dynamic power cable systems. Supports tow-to-port maintenance strategy, modular buoyancy and latch systems, and decouples pre-installation from platform hook-up. Backed by BEIS funding.
• Deep Water Offloading Buoys Deep-water offloading buoy design suitable for water depths up to 2000m. Features include turntable design to reduce out-of-plane bending stresses, circular hull, skirt system for berthing collision absorption, automatic bearing lubrication, bearing triplex redundancy, remotely operated ESDVs, double-axis chain stoppers, and chain tension monitoring. Mass 700-900 MT, 20m outer diameter, 10m height, 13 compartments.
• Catenary Anchor Leg Mooring (CALM) Buoys Standardized CALM buoy design for mooring FSOs at offshore fields or for loading/offloading oil products at near-shore terminals. Adaptable to a range of water depths, offloading tanker capacities, and environmental loadings. Designed for 400 tonnes tanker load, 6-12 mooring legs, water depths up to ~120m, and environments up to 4.0-5.0m Hs.
• Power and Hydrogen Charging Docks and Buoys Power and low-emission fuel charging buoys for marine support vessels servicing wind farms and offshore installations. Enables service vessels to berth at offshore sites and charge using battery power and lower-emission fuels such as hydrogen and ammonia, reducing the need to return to shore and lowering CO2, NOx, and SOx emissions.
• Fluid and Power Transfer Systems, Risers, Power Cables, and PLEMs In-house designed toroidal and axial fluid swivels for turret and buoy markets (type approved by DNV and ABS), power transfer systems including High Voltage and Medium Voltage Power Swivels, Junction Boxes and Dynamic Power Cable Terminations for 33kV, 66kV and beyond for floating wind, hydrogen transfer systems, and subsea riser and power cable engineering including Pipeline End Manifold (PLEM) design, procurement, and fabrication.
• Owners Engineer / Project Development Comprehensive project management and engineering services supporting the complete project lifecycle from Conceptual Development and Permitting through FEED, Detailed Design, EPC, Offshore Installation and Commissioning, Maintenance, and Decommissioning. Includes procurement division with ISO 9001 certified procurement protocol, contract administration, cost management, HSE management, due diligence, third-party verification, and classification society coordination.
• Hull and Platform Design Naval architectural design of ships and bespoke floating platforms and hulls for the offshore floating wind and energy sector, covering hydrostatics, hydrodynamics, motions and seakeeping, stability, hull strength, capacity plans, and weight reports. Performs aero-hydro-elastic-servo coupled analysis for floating wind platforms and stationkeeping, mooring, and anchoring system design for water depths from 13m to 2500m, plus structural engineering for ship hulls, semi-submersibles, barges, tension leg platforms, and subsea components.
• Component Design On-board component and systems design covering structural components (flare towers, topside module supports, crane pedestals, tank rearrangements, riser and power cable hang-off balconies, mooring balconies), piping systems engineering (hydrocarbon, gas, water injection, gas lift), fluid swivel system engineering, mechanical systems engineering (mooring connectors, handling systems), electrical, instrumentation and control systems engineering, and subsea systems engineering (dynamic power cables, umbilicals, riser systems, Pipeline End Manifolds, Mid Water Arches, Tether Bases).
• Fabrication, Assembly, Loadout, and Heavy Lift Engineering Engineering support for fabrication yards including QA/QC inspectors, engineers, and HSE representatives. Covers loadout and lifting analysis, seafastening and grillage design, heavy lifting and installation engineering, module loadout engineering, lifting frame design, skid beam, rail, SPMT analysis, and design of installation aids, guides, frames, and chutes.

Quantifiable outcome

• US$110m contract value for single Libra FPSO turret mooring project
• +3 more outcomes

Named customers12 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Twelve partnerships are on record, tiered core and minor.

• Yinson ProductioncoreStrategic or Co-development PartnerYinson Production acquired 100% of London Marine Group Limited (parent of LMC) in 2024. LMC has a continuing relationship providing turret mooring systems for Yinson's FPSO fleet including FPSO Helang and FPSO Atlanta projects.
• University of Plymouth COAST LABminorStrategic or Co-development PartnerUniversity of Plymouth COAST LAB conducted 1:70 scale basin tests and 1:4 scale function tests for LMC's DISCO BUOY disconnectable mooring system as part of the BEIS Floating Wind programme funding.
• The Carbon TrustminorStrategic or Co-development PartnerThe Carbon Trust is supporting the development of the DISCO BUOY disconnectable mooring system alongside BEIS funding.
• Xodus GroupminorStrategic or Co-development PartnerLMC worked with Xodus Group's environmental team to deliver to the Maritime and Coastguard Agency a review of potential risks to the UK's coastal environment, marine life, and traffic from hydrocarbon releases.
• SeaTwirl ABminorStrategic or Co-development PartnerLMC was contracted by SeaTwirl AB to perform the detailed design of the Spar for the 1MW S2 Floating Vertical Axis Wind Turbine. SeaTwirl is a Swedish technology company developing floating offshore wind power with a unique vertical-axis wind turbine design.
• HexiconminorStrategic or Co-development PartnerUnder a Framework Agreement, LMC supported Hexicon with the license application and Pre-FEED engineering design for the TwinWind floater including structural, systems, electrical, mooring, anchoring, and dynamic power cable systems for the Wave Hub project off Cornwall, UK.
• Bechtel CorporationminorStrategic or Co-development PartnerBechtel Corporation supported Hexicon with the development of the Wave Hub offshore renewable energy site. LMC was engaged under the Hexicon framework for this project.
• Offshore Wind Growth Partnership (OWGP)minorStrategic or Co-development PartnerLMC was successful in its application to OWGP for business transformation support, aimed at developing how LMC can contribute further to the offshore wind industry.
• Marine Power Systems Ltd (MPS)minorStrategic or Co-development PartnerLMC was selected by MPS for the delivery of engineering for platform structure, mooring, and deployment system design supporting the first stage of WaveSub full-scale prototype development.
• Saitec Offshore TechnologiesminorStrategic or Co-development PartnerLMC is working with Saitec Offshore Technologies for the design, review, and development of the Turret Mooring System for the BlueSATH project.
• Alam-CortezminorStrategic or Co-development PartnerLMC completed fabrication and delivery of Tether Bases, Riser, and Fibre Optic Cable Clamps to Alam-Cortez for the Berantai Field offshore Malaysia. LMC also designed the mooring system for the associated FPSO.
• Sustainable MarineminorStrategic or Co-development PartnerLMC designed the turret-style mooring system for Sustainable Marine's Plat-I 6.40 Tidal Power Platform, enabling the platform to align with tide or river flow direction.

Scale indicators6 records

Recent moves7 records

Expansion highlights6 records

Broad incumbents

• TechnipFMC: TechnipFMC provides integrated subsea and offshore engineering including mooring systems for floating production, with significantly broader scope and scale than LMC.
• Saipem: Saipem is a tier-1 offshore EPC contractor and FSRU/FPSO operator that has contracted LMC for column turret design (FSRU Toscana); a broad incumbent with overlapping mooring and floating LNG capabilities.
• Aker Solutions: Aker Solutions delivers offshore platform and mooring engineering for both oil & gas and floating wind, including concepts like Aker BP's Hywind — a broad incumbent comparable to LMC in mooring design scope.
• BW Offshore: BW Offshore is an FPSO operator that bundles turret mooring procurement with its lease-operate model — comparable to LMC's FPSO turret EPC customer base and Yinson's strategic profile.
• SBM Offshore: SBM Offshore is one of the largest FPSO contractors globally and integrates turret mooring into its lease-and-operate model — overlapping with LMC's turret EPC work for major FPSO operators.

Emerging players

• Stiesdal Offshore Technologies: Stiesdal is developing the TetraSpar floating wind demonstrator and modular mooring concepts — an emerging-player peer intersecting LMC's floating wind mooring R&D.
• Principle Power: Principle Power develops the WindFloat semi-submersible floating wind platform and partners on mooring design — an emerging-player peer to LMC in floating wind mooring engineering.

Direct peers

• InterMoor (Acteon): InterMoor is a leading mooring and installation services provider for offshore floating units and floating wind, directly comparable to LMC's mooring and anchor engineering services.
• SOFEC (a Moog brand): SOFEC is one of the world's leading turret mooring system providers for FPSOs, FSOs, and FSUs — directly comparable to LMC's turret mooring EPC business and its CALM and disconnectable buoy offerings.
• Bluewater Energy Services: Bluewater designs and supplies FPSO/FSO turret and CALM buoy mooring systems, including the STP Buoy and ICEFLOAT LNG concepts — a direct functional competitor in floating production mooring.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/watch?v=jWyzZ9CLY7w
• LinkedInlinkedin.com/company/london-marine-group

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries1 record

Funding overview

Funding rounds1 record

Investors1 record

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 London Marine Consultants