WD Close & Sons

What WD Close & Sons does

WD Close & Sons Ltd. is a UK-headquartered, family-owned structural steel fabrication business founded in 1983 by William (Bill) Dixon Close and now led by his son Chris Close alongside partner Kelly Scott. The company is registered in England (Company Reg No. 02031962) and operates from two adjacent facilities in Newcastle upon Tyne — the Carville Works head office and Valentia Avenue secondary plant — providing turnkey fabrication services to enterprise clients in subsea/marine, oil & gas, renewable energy, defence, and nuclear sectors. Revenue mechanics are entirely project-based, one-time fabrication contracts awarded through direct consultative enterprise sales, with no disclosed public pricing and no recurring or subscription revenue streams.

The company's core offering is organised around three service pillars: Fabrication & Welding (material cut-and-form, machining, painting under controlled Weld Procedure Qualifications with 1,000+ active WPS), Build & Test (load testing and Factory Acceptance Testing across mechanical, pneumatic, electronic, and hydraulic systems in a dedicated 13,000 sq ft assembly shop), and Load Out & Mobilisation (vessel mobilisation at a private 180m quay with two 210m x 40m berths and direct access to open seas 4km down the River Tyne). Underlying technology is heavy industrial rather than digital: 200,000+ sq ft of fabrication floor space, mega doors enabling 200+ tonne fabrications, 80T tandem lift, 300T SPMT, 220T mobile crane, and 60T overhead cranes at both sites. Product evidence includes mid water arches for North Sea developments (1,850t overall weight), integrated decks for offshore pipe-laying vessels, marine A-frames and sheaves, large-scale piling templates (620t overall weight), and precision sheaves in carbon, manganese, and polymer materials.

Differentiated qualifications include EN 1090 accreditation to Execution Class 4 (the highest structural class) at both sites, ISO 9001/14001/45001 certifications, ISO 3834 Part 2 for welding quality, and UKAS-accredited third-party witness testing under Lloyd's Register and DNV, with TWI-approved Welding Engineer oversight. The business sells exclusively through direct enterprise sales with no resellers or distributors, relying on 40+ years of operating history and active case-study marketing to attract clients. Talent is built through structured 5-year partnerships with Newcastle College Energy Academy (up to 20 apprentices per year) and Tyne Metropolitan College, with 40+ apprentices trained to date and six engineering graduates recruited. No external investment, parent entity, or public listing is indicated; the company operates as an independent, founder-led private limited.

Name

WD Close & Sons

Legal name

WD Close & Sons Ltd.

Website

https://wdclose.co.uk

Company type

Private

Founded year

1983

Operating status

Operating

Headcount range

51–100 employees

Short description

WD Close & Sons is a UK family-owned structural steel fabricator serving marine, oil & gas, subsea, renewable energy, defence, and nuclear enterprises from two Newcastle upon Tyne facilities, delivering turnkey fabrication, welding, testing, and vessel load-out.

Ownership category

akta.pro rank

Headquarters

HQ city

Newcastle Upon Tyne

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Structural Steel Fabrication Contracts: Project-based one-time fabrication contracts for marine, oil & gas, subsea, renewable energy, defence, and nuclear sectors. Full turnkey in-house solution including material cut and form, machining, painting, assembly, testing and mobilisation.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

WD Close & Sons is a family-owned structural steel fabrication company providing turnkey in-house fabrication services — including cutting, forming, machining, welding, painting, assembly, testing, and load-out — for enterprise clients in marine, oil & gas, subsea, renewable energy, defence, and nuclear sectors. The company operates two fabrication facilities on the River Tyne in Newcastle, with a private 180m quay enabling direct vessel load-outs to open seas.

Product overview

WD Close & Sons is a family-owned steel fabrication company offering a unified portfolio of bespoke fabrication solutions comprising Fabrication & Welding Services (the core platform), Build & Test Services, and Load Out & Mobilisation Services. These three service pillars support specific product lines including Mid Water Arches, Integrated Deck Fabrication, Marine Ancillary Fabrications, Piling Templates, and Sheave Fabrication. The offering operates as a full turnkey in-house solution with material sourcing, cutting, forming, machining, welding, painting, assembly, testing, and load-out all managed within their two facility sites.

Differentiator

Problem solved

Functional benefit

Products and services

• Fabrication & Welding Services Full turnkey in-house structural steel fabrication and welding solution including material cut and form, machining, and painting. Operations controlled under ISO 9001 with over 1,000 approved weld procedures covering various material groups and processes including MCAW, FCAW, SMAW, GMAW, and GTAW. Serves enterprise clients in marine, oil & gas, subsea, renewable energy, defence, and nuclear sectors.
• Build & Test Services In-depth load testing and Factory Acceptance Testing (FAT) services for mechanical, pneumatics, electronics, and hydraulic systems, conducted in a dedicated 13,000 sq ft assembly shop. Provides quality assurance and certification for fabricated structures delivered to enterprise clients in offshore and industrial sectors.
• Load Out & Mobilisation Services Vessel mobilisation and demobilisation services for marine and subsea equipment, conducted at two deep-water berths (Berth 1: 210m x 40m, 7.5m depth; Berth 2: 210m x 40m, 9.1m depth) with a dedicated load-out team and equipment. Uses company-controlled 180m private quay with direct sea access.
• Mid Water Arches (MWA) Custom-fabricated mid water arches designed to control cables as they rise from the seabed, consisting of pressure vessels, main frames, gravity bases, and counterweights for offshore energy applications. Each unit fabrication weight approximately 850 tonnes, overall weight 1850 tonnes.
• Integrated Deck for Offshore Pipe-Laying Vessel Fabricated integrated deck for offshore pipe-laying vessels with floating deck interfacing with J Lay Tower, featuring precision sliding operation for deep water rigid pipeline installation. Fabrication weight 200 tonnes, overall weight 220 tonnes.
• Marine Ancillary Fabrications Bespoke marine frame systems, carriages, and sheaves for marine sector applications, including A-Frames up to 175 tonnes, carriages up to 15 tonnes, and sheaves up to 10 tonnes with 6m diameter. Fabrication weight 220 tonnes, overall weight 250 tonnes.
• Piling Templates Large-scale piling templates for accurate piling offshore operations, including mudmats (approximately 25m radius), triangular frames, and three hinged gates with hydraulic rams. Up to 520 tonnes fabrication weight, 620 tonnes overall weight.
• Sheave Fabrication Precision-engineered sheaves (pulley wheels with grooved rims) for wire rope management in heavy industrial environments, available in carbon steel, manganese steel, and nylon/polymer materials for marine, renewables, and defence sector applications.

Quantifiable outcome

• Zero accident rate in structural and pipework applications
• +1 more outcomes

Named customers4 records

Segments6 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Four partnerships are on record, tiered core and minor.

• Newcastle College Energy AcademycoreImplementation/ SI/ Consulting Partner5-year partnership with Newcastle College Energy Academy for welding and fabrication apprenticeships, renewable energies and subsea engineering courses. WD Close takes up to 20 apprentices per year through this partnership, with over 40 apprentices already trained. Company also recruited six energy and engineering graduates from Newcastle College's University Centre.
• Tyne Metropolitan CollegecoreImplementation/ SI/ Consulting PartnerPartnership with Tyne Metropolitan College for electrical and maintenance apprenticeships as part of 5-year plan to train over 100 apprentices.
• AIS ConnectminorImplementation/ SI/ Consulting PartnerWorked with trainees and apprentices from AIS Connect to aid construction of the Sentius Tectonicus Centurion statue at Segedunum Roman Fort and Museum in Wallsend.
• The Welding Institute (TWI)coreImplementation/ SI/ Consulting PartnerWelding system accredited to ISO 3834 Part 2 (Certified by TWI Certification Ltd) and overseen by a TWI approved Welding Engineer/RWC. Courtney Newton won TWI Northumbria Branch Student of the Year 2022. WD Close encourages apprentices to attend TWI events including Welding With Chocolate workshops.

Scale indicators7 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• Heerema Fabrication Group: Dutch-based international offshore structural steel fabricator serving oil & gas and offshore wind sectors at a much larger global scale with broader geographic reach. Comparable in heavy fabrication and welding pedigree but at substantially higher scale and capacity.
• Cammell Laird: UK shipbuilder and ship repair specialist based in Birkenhead with broader shipbuilding capabilities serving marine and defence sectors at significantly larger scale. Overlaps in marine structural fabrication and complex ship repair work.
• Larsen & Toubro Hydrocarbon Engineering: Global Indian EPC contractor and offshore platform fabrication specialist serving oil & gas, offshore wind, and renewable energy sectors at much larger scale. Comparable in heavy structural fabrication and welding pedigree for offshore and energy projects.
• Lamprell Energy: UAE-based offshore platform fabrication specialist serving oil & gas and renewable energy sectors with similar project-based fabrication services and welding specialisation. Larger scale and focused on the Middle East and Southeast Asia geographies.
• Sembcorp Marine: Singapore-based offshore platform, shipbuilding and marine engineering specialist serving oil & gas, marine, and offshore wind sectors at significantly larger scale. Comparable in heavy fabrication, structural steel, and offshore engineering capabilities.

Direct peers

• A&P Group (A&P Tyne): UK ship repair, conversion and fabrication services group with Northeast England operations at Tyne serving similar marine and offshore clients with comparable structural steel, welding, and load-out services. Operates in the same Newcastle/NE England cluster.
• Wilton Engineering Services: UK-based structural steel fabrication specialist based in Teesside serving offshore wind, oil & gas, and nuclear sectors with similar welding, plate processing, and heavy lift capabilities. Direct competitor in UK offshore fabrication with overlapping sector mix and project-based contract model.
• Forth Engineering: Cumbria-based engineering, fabrication and mechanical handling company serving nuclear, defence, and renewable energy sectors with similar project-based bespoke fabrication, welding qualifications, and precision component manufacturing capabilities.
• Burnham Engineering: UK structural steel fabrication company serving rail, marine, power and industrial sectors with similar custom fabrication and welding capabilities. Direct competitor in UK structural steel contract fabrication with project-based delivery model.
• Global Energy Group (formerly McNulty Offshore Construction): Northeast England-based engineering, fabrication and offshore services company (formed via acquisition of McNulty) specialising in structural steel for offshore and subsea sectors. Directly comparable in geographic cluster (NE England), sector focus, and bespoke fabrication capabilities.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/www.wdclose.co.uk
• LinkedInlinkedin.com/company/wd-close-engineering
• Xx.com/wdclos

Compliance5 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 WD Close & Sons