What Red7Marine does

Red7Marine is a UK-headquartered specialist marine infrastructure and engineering contractor delivering turnkey solutions across offshore wind, cable installation, nuclear, marine civils, and flood and coastal defence sectors. Founded in 1999 in Ipswich by Nick Offord, the company transitioned from inland waterway support into marine construction after purchasing its first jack-up barge in 2008 and now operates what it describes as the UK's most versatile fleet of self-elevating jack-up barges, supplemented by flat-top barges, over 150 modular floats, Taska crew transfer vessels, cranes, CTV access ladders and bespoke piling gates. The business is built around four reinforcing capabilities: an owned and IJUBOA-accredited marine plant fleet (80t to 3,000t deck load capacity), an in-house quayside fabrication facility with NDT-certified welding and inspection, a pre-construction and engineering team that participates in early contractor involvement (ECI), and certified specialist personnel (STCW 95, GWO). Its proprietary Safer7Minds safety framework and Your7Mentor peer mentoring programme are positioned as cultural differentiators on safety-critical marine work.

Red7Marine makes money through two principal revenue streams: marine plant hire (charter of jack-up barges, flat-tops, modular floats, support vessels and equipment with or without crew) and full turnkey marine engineering services (pre-construction engineering, fabrication, specialist personnel, logistics and complete project delivery). Pricing is not publicly disclosed; contracts are project-specific, priced on scope, duration, equipment and site conditions, with multi-year framework agreements alongside per-project charters. The company serves a diversified mix of enterprise customers (BAM Nuttall, EDF Energy, Ørsted, ExxonMobil, N-Sea Group, Portland Port, Uber Boat by Thames Clippers, Implenia) and government agencies (Port of London Authority, Environment Agency, Merseytravel, East Suffolk Council), with a repeat-engagement pattern visible on programmes such as Hinkley Point C, Sizewell A, Bridgwater Tidal Barrier, Hornsea 3 and Great Yarmouth Third River Crossing. Distribution is direct, consultative enterprise sales driven by ECI, competitive tendering and framework agreements; marketing channels centre on the corporate website, LinkedIn and case-study content.

Following a 2019 management buyout led by Chairman John Walsh, the business scaled into Principal Contractor delivery on multi-million-pound UK infrastructure projects and began operating across UK and European waters. On 29 May 2026 Red7Marine was acquired by Ancora Group, joining Teignmouth Maritime Services, Hesselberg Erosion Protection and Marine Plant Hire to form a national tier 2 integrated marine infrastructure solutions provider with over 100 years of combined specialist expertise. The company is privately held, headquartered in Ipswich with a southern office in Southampton, holds ISO 9001/14001/45001, CHAS and Achilles Building Confidence certifications, and reports a headcount of 110+ team members.

Name

Red7Marine

Legal name

Red7Marine

Website

https://red7marine.co.uk

Company type

Private

Founded year

1999

Operating status

Acquired

Headcount range

101–250 employees

Ownership category

akta.pro rank

Product category

Marine Infrastructure Services

NAICS

Support Activities for Water Transportation (4883), Other Support Activities for Water Transportation (48839)

SIC

Construction - Special Trade Contractors (1700)

akta.pro primary industry

Port & Harbor Construction (Quays, Wharves, Berths) (IMAFAJAA)

akta.pro secondary industries

Breakwaters, Seawalls & Coastal Defense Structures (IMAFAJAC), Dredging & Channel Deepening (Capital & Maintenance) (IMAFAJAB)

Keywords

• Marine construction services
• Jack-up barge hire
• Offshore wind support
• Marine civils contracting
• Flood defence services

Headquarters

HQ city

Ipswich

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Marine Plant Hire: Charter of jack-up barges, flat-top barges, modular floats, support vessels (Taska Boats), cranes, and CTV access ladders - available with or without crew
2. Marine Engineering Services: Turnkey marine solutions including pre-construction engineering, fabrication, marine logistics support, specialist personnel provision (Barge Masters, crane operators, engineers), and full project delivery from ECI through to decommissioning
3. Nuclear Services: Specialist nuclear sector marine engineering for construction, maintenance, and decommissioning including jetties, pipelines, sea defences, and active effluent discharge lines
4. Cable Installation and Repair: Nearshore and offshore cable services including HDD support, cable duct installation, planned and emergency repairs with rapid mobilisation capability

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Red7Marine is a specialist marine infrastructure contractor providing turnkey marine solutions through owned marine plant and in-house engineering capabilities. The company delivers end-to-end marine construction, maintenance, and decommissioning services across offshore wind, cable installation, nuclear, marine civils, and flood and coastal defence sectors, ranging from standalone plant hire to fully managed project delivery with certified personnel.

Product overview

Red7Marine is a marine infrastructure and engineering specialist offering turn-key marine solutions across offshore wind, cables, nuclear, marine civils, and flood & coastal defence sectors. The company operates the UK's most versatile fleet of jack-up barges (with capacities ranging from 100t to 3,000t max deck load), flat top barges, modular floats, and support vessels, complemented by in-house fabrication and pre-construction engineering services. The product portfolio spans specialist marine plant hire (jack-up barges, cranes, piling gates, CTV ladders) through to fully managed turnkey solutions including project integration, marine logistics, and engineering design. The company also maintains proprietary safety and people culture initiatives (Safer7Minds, Your7Mentor) that support its service delivery.

Differentiator

Problem solved

Functional benefit

Products and services

• Offshore Wind Services Specialist marine services for offshore wind farms including installation, operations and maintenance (O&M), decommissioning, cable installation, HDD duct installation, and artificial nesting structures for offshore wind developers across UK and European waters.
• Cable Services Bespoke solutions for cable installation, maintenance, and repair in challenging marine environments, including horizontal directional drilling (HDD) support, planned and emergency cable repairs, and cable duct installations for offshore wind, communications, and energy sectors.
• Nuclear Services Marine engineering services across development, construction, maintenance, and decommissioning of facilities and infrastructure for the nuclear sector, including power station marine jetty construction, seawall defences, jetty demolition, active effluent discharge lines, and fish return pass systems.
• Marine Civils Expert marine civil services including piling (tubular, combi-wall, sheet, rock-socket, rotary bored), ports, harbours, piers, and jetties construction, marine demolition, inland waterways work, pipelines and outfalls, and scour protection in coastal and inland waterway environments.
• Flood & Coastal Defence Services Comprehensive flood and coastal defence services including marine construction, planned maintenance and repairs, and emergency response to protect communities, property, and ecosystems from coastal and waterway damage and erosion.
• Marine Logistics Support Complete logistics solution including project integration, marine plant and personnel provision, specialist vessel and equipment supply, and end-to-end marine operations management.
• Pre-Construction & Engineering Strategic planning and engineering services including feasibility studies, temporary and permanent works design, specialist assessments, lifting operations design and supervision, and ECI (Early Contractor Involvement) support.
• Fabrication Services In-house fabrication services including temporary and permanent works, welding (FCAW, MIG/MAG, MMA), on-site welding support, and NDT-certified inspections with full documentation from a dedicated quayside facility.
• Jack-Up Barge Hire Self-elevating jack-up barges for construction and servicing of overwater structures. Fleet includes Typhoon 3000 (3,000t max deck load), Haven SeaChallenger (1,000t), Haven SeaSeven (400t), Haven Seariser 2 (250t), Haven Seariser 4, Haven Seajack 1 (100t), and Haven Seastabler (280t), available with or without crew.
• Flat Top Barge Hire Multi-purpose pontoons for bulk deck cargo, aggregates, heavy crawler cranes, and specialist marine plant. Fleet includes Haven Seaforth (691t deck load) and Haven Seabreeze (525t deck load).
• Modular Float Hire Over 150 modular floats for hire including Modular C5 Floats (30t Quadra/15t Duo), Modular C7 Floats (50t Quadra/25t Duo), Modular MPS (35t), Modular Nato, and Modular RCP (52t) for marine construction temporary works.
• Taska Boat Hire Crew transfer boats supplied by Taska Marine, up to 4T bollard pull and road transportable. Fleet includes Taska 1204, Taska 903, Schottel 724 Workboat, Challis 10, and Taska 703.
• CTV Access Ladders Crew transfer vessel access ladders including Haven Seachallenger CTV Ladder, CTVL-10, CTVL-10.5, and CTVL-12 for safe access to offshore structures.
• Piling Gates Custom-designed piling gates for jack-up barge operations including Galloper Piling Gate, Haven Seachallenger Piling Gate, Portland Pile Gate, Rissa Pile Gate, Sladdens Pier Sheet Pile Gate, Excavator Piling Grab, Rendsburg Grillage/Gate, and Wapping Pile Collar.
• Cranes & Hiabs Hire Marine crane equipment including 300t Crawler Crane (60m boom, 90m optional), 70t Crawler Crane, 20t Hiab, and 38t Hiab for heavy lift operations.

Quantifiable outcome

• 25+ years of experience on critical national infrastructure including Hinkley Point C, Sizewell A, Bridgwater Tidal Barrier, Hornsea 3
• +2 more outcomes

Named customers15 records

Segments5 records

Ideal customer profiles5 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 supporting, core and key personnel.

• Active Training Team LtdsupportingOthers · 1 March 2026Award-winning organisation specialising in behavioural safety and safety leadership training. Delivered three Safety Stand Down Days across Red7Marine business in March 2026, including immersive marine-based scenarios and workshop sessions built around company incident data.
• SarenscoreStrategic or Co-development PartnerGlobal leader in heavy lifting and transport engineering. Worked with Red7Marine on Project Fast at ExxonMobil's Fawley facility for transfer of 4,899.6T of refinery equipment using Typhoon 3000 jack-up barge.
• Williams ShippingsupportingStrategic or Co-development PartnerLocal marine company providing assistance with navigation and positioning of jack-up barge through shallow approach channels at ExxonMobil Fawley project.
• Bayan Mohammad (Principal Engineer)key personnelOthersPrincipal Engineer leading company's engagement with ICE Offshore Engineering Society. Holds doctoral research focused on decommissioning of offshore foundation systems, strengthening technical expertise.
• ABI Equipment LimitedsupportingTechnology or IntegrationEquipment supplier providing Delmag RH34 Drilling Rig for piling operations at Woodside Ferry Terminal project for rock socket installation.
• MintMechcoreTechnology or IntegrationEngineering design partner collaborated with Red7Marine on Rendsburg bridge project to design 67-tonne piling gate and temporary works for drilling operations. Also worked on Portland Port deep-water berth designing bespoke two-tiered piling gates.
• Beckett RankinesupportingStrategic or Co-development PartnerMarine and civil engineering consultancy. Partner on Orbit Clipper project for UK's first fully electric cross-river passenger ferry.
• Delphini LtdsupportingStrategic or Co-development PartnerProject partner on Orbit Clipper electric ferry project.
• Wight Shipyard CosupportingStrategic or Co-development PartnerProject partner on Orbit Clipper electric ferry project for clean maritime solutions.
• AMS No-DigcoreStrategic or Co-development PartnerDirectional drilling specialist. Red7Marine supported with Haven SeaChallenger jack-up barge for installation of three HDD ducts for Hornsea 3 Offshore Wind Farm cable protection.
• Leask MarinesupportingStrategic or Co-development PartnerMarine contractor providing diving spread for Hornsea 3 HDD duct installation project.
• N-Sea GroupcoreStrategic or Co-development PartnerGlobal subsea solutions specialist. Red7Marine provided turnkey marine logistics solution for Irish Sea cable repair including two jack-up barges, supporting tugs, 220t crawler crane, accommodation and catering - completed within three-week deadline.

Scale indicators6 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• Balfour Beatty: Large UK-listed infrastructure group with marine civils and coastal defence capability. Where Projects Director Luke Cooke previously held senior roles, comparable on piling, jetties, and coastal defence contracts but at significantly larger scale and broader portfolio.
• BAM Nuttall: Major UK civil engineering contractor that is both a customer and a competitor to Red7Marine. Comparable on marine civils (Bridgwater Tidal Barrier, Great Yarmouth Third River Crossing) but operates as a tier 1 prime contractor with much broader construction scope.
• Royal IHC: Dutch maritime technology and equipment supplier focused on dredging, offshore, and mining. Overlaps with Red7Marine on specialist marine equipment fabrication but operates at broader incumbent scale as an equipment builder rather than a contracting specialist.
• Royal Boskalis Westminster: Dutch-listed global marine services group with offshore energy, dredging, and maritime services. A much larger incumbent that competes with Red7Marine for offshore wind and port infrastructure tenders but operates a substantially broader portfolio.

Direct peers

• Leask Marine: UK-based marine contractor providing diving, ROV, cable lay, and marine civil services. Directly comparable UK specialist that partnered with Red7Marine on Hornsea 3 and operates in overlapping offshore wind and subsea cable segments.
• Van Oord: Dutch-headquartered global marine contractor with offshore wind, dredging, and marine construction capabilities. Directly comparable to Red7Marine in jack-up barge deployment for offshore wind and coastal infrastructure, though at much larger scale and as a tier 1 prime contractor.
• Osprey Group: UK-headquartered marine services contractor offering vessel charter, diving, and marine civil works. Comparable UK mid-market specialist competing with Red7Marine for harbour, port, and coastal infrastructure contracts.
• Jan De Nul: Belgian marine and civil contractor delivering dredging, offshore wind, and marine infrastructure projects across Europe and globally. Overlaps with Red7Marine on offshore wind installation support, cable laying, and coastal protection contracts.
• Volker Stevin: UK civil engineering contractor specialising in marine and coastal infrastructure including piling, quays, jetties, and flood defences. Closely comparable to Red7Marine's Marine Civils service line and competes for similar Environment Agency and port authority contracts.

Emerging players

• Hesselberg Erosion Protection: Norwegian specialist in erosion protection and coastal infrastructure, now part of Ancora Group alongside Red7Marine. Sister company with overlapping coastal defence service offering and combined go-to-market within the new Ancora platform.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/red7marine-ltd
• Xx.com/red7marine

Compliance10 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 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 Red7Marine