The Port Of Mostyn
Privately-owned UK port operator on the Dee Estuary in North Wales, delivering offshore wind construction and O&M bases, heavy lift and special projects logistics, cargo handling, and 24-hour marine services to wind developers, turbine OEMs, and shipping customers.
- Company typePrivate
- Founded-
- HeadquartersHolywell, United Kingdom
- Headcount11–50
- GTM typeB2B
- OfferingServices
What The Port Of Mostyn does
The Port of Mostyn Ltd is a privately-owned and operated port located on the Welsh side of the Dee Estuary in Mostyn, Holywell, Flintshire, within three nautical miles of the Irish Sea. The company operates a 110-acre site (expanding to ~120 acres with the 2025 acquisition of the adjoining former Warwick International site) featuring a 310m riverside quay at -9m Chart Datum, a 180m Ro-Ro berth, 42 hectares of laydown land, six pontoon berths, 28,000 sq. ft. of final assembly workshops and crane capacity up to 1,300 tonnes. It is the Statutory Harbour Authority and Competent Harbour Authority for Pilotage in the Dee Estuary, with the regulatory function housed in wholly-owned subsidiary Mostyn Docks Ltd.
The port generates revenue across five streams: transactional cargo handling (dry bulk, general cargo, project cargo, breakbulk) via stevedoring and berthing fees; recurring property and land leasing across the 110-acre site; professional services for offshore wind construction and O&M (including dedicated bases for RWE Renewables across Gwynt-y-Mor, North Hoyle and Rhyl Flats); specialised heavy-lift and special projects logistics (historically including the 16-year Airbus A380 wing programme between Broughton and Toulouse); and 24-hour marine services (pilotage, survey, crew transfer, dredging, towage). Pricing is bespoke and quote-based under multi-year enterprise contracts. The company is positioning itself as the primary Irish Sea hub for next-generation offshore wind — having supported construction of seven wind farms and installation of 420+ turbines since 2003 — and is executing a major 350m quay extension and 13-acre land reclamation (Natural Resources Wales Marine Works Licence granted 2025) to handle floating offshore wind turbines up to 2,000 tonnes per foundation. A separate wholly-owned subsidiary, Mostyn SeaPower Ltd, is developing a £590m tidal lagoon project (8 x 16MW turbines, 298 GWh/year) intended to power 82,000 homes.
The customer base is concentrated in the offshore wind energy vertical, with RWE Renewables, Siemens Gamesa, MHI Vestas, Vestas, Van Oord, MT Hojgaard, E.ON, Dong Energy and Ziton named as enterprise partners and customers; additional aerospace exposure existed historically via Airbus (ended 2020). Headcount is 240 employees (expanding to 300 permanent plus 130 construction roles) and the leadership team comprises Managing Director Jim O'Toole, Harbour Master Sam Jones and Port Manager Ellis Humphreys.
The Port Of Mostyn firmographics
Firmographics- Name
- The Port Of Mostyn
- Legal name
- Port of Mostyn Ltd
- Website
- https://portofmostyn.co.uk
- Company type
- Private
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Privately-owned UK port operator on the Dee Estuary in North Wales, delivering offshore wind construction and O&M bases, heavy lift and special projects logistics, cargo handling, and 24-hour marine services to wind developers, turbine OEMs, and shipping customers.
- Ownership category
- akta.pro rank
Where The Port Of Mostyn is headquartered
LocationHeadquarters
- HQ city
- Holywell
- HQ country
- United Kingdom
- HQ region
- Europe
Offices2 records
Markets served
The Port Of Mostyn business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Infrastructure, Operations, Marketing or Sales, Supply Chain, Technology or R&D
Revenue model
- Port Services and Cargo Handling: Fees for handling various cargo types including dry bulk, general cargo, project cargo and breakbulk. Revenue generated through stevedoring, berthing, and logistics services.
- Property and Land Leasing: Commercial property leasing including land and warehousing as well as development opportunities across the 110-acre site for marine-related activities.
- Offshore Wind Services: Construction base and O&M services for offshore wind farms including laydown, storage, assembly, and support services for turbine installation and maintenance.
- Special Projects and Heavy Lift: Specialized logistics solutions for complex project cargo including heavy lift operations and bespoke infrastructure development for unique cargo requirements.
- Marine Services: 24-hour marine support including pilotage, survey, crew transfer, dredging and towage services with in-house survey/pilot and multicat vessels.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Custom project-based pricing |
Go-to-market motion2 records
Distribution channels1 record
Marketing channels5 records
The Port Of Mostyn product offering
Product offeringCore offering
The Port of Mostyn operates a multi-service port on the Dee Estuary in North Wales, providing offshore energy construction and O&M hub services, cargo handling (dry bulk, general cargo, breakbulk), special project logistics for heavy-lift and oversized cargo, marine services (pilotage, towage, dredging, survey, crew transfer), and ship's agency/stevedoring services. The 110-acre site features 310m of -9m depth quayside, a 180m Ro-Ro berth, 28,000 sq. ft. of assembly workshops, and direct rail and motorway connectivity for handling next-generation offshore wind turbines and complex project cargoes.
Product overview
The Port of Mostyn is a multi-service port operator offering a unified portfolio of port and maritime services. Core offerings include Offshore Energy Services (wind farm construction and O&M), Cargo Handling, Special Projects (heavy lift), Marine Services (pilotage, towage, dredging), and Port Services (agency, stevedoring, fabrication). Infrastructure assets include the 310m Riverside Quay, Ro-Ro Terminal, and 110-acre Commercial & Storage facilities. Major development projects include the Mostyn SeaPower Tidal Lagoon (£590m, 8x16MW turbines) and a 350m quay expansion for floating offshore wind. The port serves as operational base for RWE Renewables and major wind turbine manufacturers including Siemens Gamesa and MHI Vestas.
Differentiator
Problem solved
Functional benefit
Products and services
- Offshore Energy Services Construction, logistics, operations and maintenance hub services for offshore wind farm projects including turbine installation, component staging, and dedicated O&M bases. Supports 7 wind farms with 420+ turbines installed and serves as ongoing O&M base for RWE Renewables across Gwynt-y-Mor, North Hoyle, and Rhyl Flats wind farms.
- Cargo Handling Handling facilities for dry bulk, general cargo, project cargo and breakbulk, with freight forwarding and storage solutions. Strategic location on the River Dee with direct access to the Irish Sea and inland multimodal transport.
- Special Projects (Heavy Lift) Complex logistics and heavy lift solutions for demanding projects, including purpose-built infrastructure for oversized cargo. Notable for handling Airbus A380 wings (96 tons, 50m long, 14m wide) for transport between Broughton and Toulouse over a 16-year partnership.
- Marine Services 24-hour maritime operations support including pilotage, survey, crew transfer, dredging and towage services delivered with in-house survey/pilot and multicat vessels.
- Port Services Comprehensive ship's agency services including stevedoring, crew management, provision of bunkering and fresh water, technical expertise, waste collection, security and courier services.
- Commercial & Storage (Property Leasing) Commercial property leasing including land and warehousing across the 110-acre port site, with development opportunities for marine-related activities. Includes 28,000 sq. ft. of final assembly workshops, hard-standing areas with ground reinforcing for cranes up to 1,300 tonnes, and dedicated turbine component storage and fitting-out bays.
Quantifiable outcome
- 420+ turbines installed from the port
- +3 more outcomes
Companies that use The Port Of Mostyn
Customer profileNamed customers10 records
Segments4 records
Ideal customer profiles4 records
The Port Of Mostyn technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration8 records
Feature5 records
The Port Of Mostyn partnerships and signals
Strategic signalPartnerships
21 partnerships are on record, tiered core, major and supporting.
- RWE RenewablescoreRWE Renewables has established O&M bases at Mostyn to service Gwynt-y-Mor, North Hoyle and Rhyl Flats wind farms, each with dedicated service teams. Port serves as the operations and maintenance hub for RWE's UK offshore wind portfolio in the Irish Sea.
- Siemens Gamesa Renewable EnergycoreSiemens Gamesa operates within the Port as a key construction and service base for offshore wind projects, providing turbine installation and maintenance services for wind farms served from Mostyn.
- MHI Vestas Offshore WindcoreMHI Vestas maintains service teams at the Port for wind farm maintenance operations, supporting ongoing O&M activities for Irish Sea wind farms.
- EON EnergymajorEON Energy is listed as a trusted partner in the renewable energy sector, collaborating on offshore wind development projects from the Port.
- Dong EnergymajorDong Energy is listed as a trusted partner in the renewable energy sector working on offshore wind projects from the Port.
- Van Oord OffshoremajorVan Oord Offshore operates from the Port as a construction partner for offshore wind farm installation projects.
- MT Hojgaard A/SmajorMT Hojgaard A/S partners with the Port for offshore wind construction and development projects.
- Vestas Wind Systems A/SmajorVestas Wind Systems A/S is a trusted partner in the renewable energy sector collaborating on wind projects from the Port.
- Bob Francis Crane HiresupportingSpecialist company providing Mobile Cranes, Crawler Cranes and Heavy Haulage services to a broad spectrum of clients operating at the Port.
- Flintshire FabricationssupportingExperts in steel fabrication including marine and structural work, supporting port operations and customer projects.
- CyrilsonssupportingSupply of highly skilled resources and consultancy services to the wind industry, supporting offshore wind operations at the Port.
- Stuart MarinesupportingMarine engineering services provider covering all aspects of marine engineering for vessels at the Port.
- All ElectricsupportingProvides a wide range of commercial electrical services for port facilities and customer projects.
- Hardtech HVsupportingSpecialists in High Voltage Engineering services supporting wind turbine and port infrastructure operations.
- Thomas Plant HiresupportingProvides a wide range of plant machinery for short and long-term hire to support port operations.
- BGB ScaffoldingsupportingSpecialists in marine and offshore scaffolding and access solutions for wind turbine and marine projects.
- ZitonsupportingSpecialist blade maintenance company operating at the Port for West of Duddon Sands blade upgrade and maintenance campaign, handling 324 turbine blades.
- AirbusmajorPort supported Airbus logistics for A380 wing transport from Broughton factory to Toulouse. Developed specialized infrastructure including purpose-built low draft river craft, dedicated terminals and berths for wings measuring 50m long, 14m wide, weighing 96 tons each. Partnership spanned 16 years until 2020.
- Mostyn SeaPower LtdcoreWholly-owned subsidiary developing the £590m tidal lagoon project. Lagoon will stretch 6.7km from Mostyn breakwater to Point of Ayr with 8 x 16MW turbines generating 298 GWh annually, powering 82,000 homes.
- Ban NuttallmajorEngineering consultants from Camberley engaged for tidal lagoon project design and technical development.
- ABPMermajorEnvironmental experts from Southampton engaged for tidal lagoon project environmental and ecological assessments.
Scale indicators11 records
Recent moves9 records
Expansion highlights6 records
The Port Of Mostyn competitors and assessment
Company assessmentMarket position
Strengths5 records
Weaknesses5 records
Competitive moat6 records
Key risks6 records
Key highlights7 records
Customer concentration
The Port Of Mostyn social profiles
Digital presenceThe Port Of Mostyn financial estimates
Financial estimateRevenue estimate
Valuation estimate
The Port Of Mostyn leadership team
Management profileNumber of profiles
Profiles3 records
The Port Of Mostyn subsidiaries and ownership
Company hierarchySubsidiaries2 records
The Port Of Mostyn funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
The Port Of Mostyn M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about The Port Of Mostyn
What does The Port Of Mostyn do?
The Port of Mostyn operates a multi-service port on the Dee Estuary in North Wales, providing offshore energy construction and O&M hub services, cargo handling (dry bulk, general cargo, breakbulk), special project logistics for heavy-lift and oversized cargo, marine services (pilotage, towage, dredging, survey, crew transfer), and ship's agency/stevedoring services. The 110-acre site features 310m of -9m depth quayside, a 180m Ro-Ro berth, 28,000 sq. ft. of assembly workshops, and direct rail and motorway connectivity for handling next-generation offshore wind turbines and complex project cargoes.
Is The Port Of Mostyn a public or private company?
The Port Of Mostyn is a private company. It is classified as unknown and is currently operating.
When was The Port Of Mostyn founded?
The Port Of Mostyn was founded in -1. It employs 11 to 50 people.
Where is The Port Of Mostyn based?
The Port Of Mostyn is headquartered in Holywell, United Kingdom, in the Europe region.
How does The Port Of Mostyn make money?
Five revenue lines are on record. Port Services and Cargo Handling is the primary driver. The others are property and Land Leasing, offshore Wind Services, special Projects and Heavy Lift and marine Services.
Does The Port Of Mostyn have an API?
No public API is recorded for The Port Of Mostyn.