Permoid

What Permoid does

Permoid Industries Limited is a privately held UK metal fabrication and precision engineering company operating from a 6.5-acre freehold site at Newton Aycliffe, County Durham, with 80,000 sq. ft. of manufacturing space across two 40,000 sq. ft. factory units. The company traces its origin to London during World War II, relocated to the Northeast in 1942 to support Royal Ordnance sites, and was incorporated in its current form in March 1985 when current management acquired the assets of Permoid Limited. It serves three primary verticals: commercial vehicle OEMs and aftermarket (steel and aluminium fuel/diesel tanks for Leyland, DAF, Volvo, Renault, Scania, Mercedes, MAN, Iveco using original Warwick & Bailey tooling); earthmoving and yellow-goods manufacturers (heavy fabrications, booms, arms, chassis, fuel and hydraulic tanks for JCB, Komatsu UK, Caterpillar, Cummins); and defence and government (military ammunition containers, missile containers, propellant storage for the UK Ministry of Defence and overseas defence procurement departments, including a 2,351-unit Apache Helicopter programme with Lockheed Martin).

The company operates a vertically integrated manufacturing capability spanning laser profiling (five Bystronic units from 1.8 to 4.4 kW, conventional oxy-propane profiling to 200 mm thickness), robotic and manual welding (four robotic stations plus 80 MIG and 20+ TIG machines, Lloyds-approved for aluminium and carbon steel), CNC machining (vertical machining centres, lathes, horizontal borers, press brakes to 320 tonnes, turret punch presses, wire forming), 20 mechanical power presses to 350 tonnes, in-house stress relieving, painting (wet and powder), and a fully equipped toolroom. Engineering is supported by Autodesk Inventor Professional with finite element analysis and reverse-engineering CAD capabilities.

Revenue is generated through project-based hardware sales across four streams: bespoke fabrication and machining contracts with OEM and tier-1 customers; steel and aluminium fuel tank manufacturing plus aftermarket replacement sales via direct website ordering; defence ammunition container manufacturing on contract; and HGV dual fuel (LPG/BioLPG) conversion systems channelled through sister company Mercury Fuel Systems. Distribution is exclusively direct B2B — enterprise field sales to OEM procurement and government defence departments, and direct-to-customer sales for aftermarket tank replacements with overnight shipping. No third-party resellers, no public pricing, and no marketing-led demand generation. The company is ISO 9001-2008 certified, Lloyds-approved for welding, and holds exclusive audit approvals from JCB (described as the only fabricator to JCB to achieve business-audit approval), Cummins (UK and USA), and Caterpillar (UK, Europe, Brazil, USA).

Name

Permoid

Legal name

Permoid Industries Limited

Website

https://permoid.com

Company type

Private

Founded year

1985

Operating status

Operating

Headcount range

101–250 employees

Short description

Permoid Industries Ltd is a UK metal fabrication and precision engineering manufacturer serving commercial vehicle OEMs (Leyland/DAF, Volvo/Renault, Scania), earthmoving equipment makers (JCB, Cummins, Caterpillar, Komatsu), and the UK Ministry of Defence with military packaging and ammunition containers from its Newton Aycliffe facility.

Ownership category

akta.pro rank

Product category

Industrial Metal Fabrication and Manufacturing

NAICS

Metal Tank (Heavy Gauge) Manufacturing (332420), Agriculture, Construction, and Mining Machinery Manufacturing (3331), Aerospace Product and Parts Manufacturing (3364)

SIC

Ordnance & Accessories, (No Vehicles/Guided Missiles) (3480), Construction Machinery & Equip (3531)

akta.pro primary industry

Surface Mining Equipment (Excavators, Shovels, Draglines, Dozers) (IMAKANAA)

Keywords

• Metal fabrication services
• Commercial vehicle manufacturing
• Defence packaging products
• Fuel tank manufacturing
• CNC machining services

Headquarters

HQ city

Newton Aycliffe

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Fabrication and Machining Services: Permoid produces custom fabrications, machined components, and sub-assemblies for commercial vehicle, earthmoving, and defence customers. Revenue is generated through bespoke project-based fabrication and machining contracts, typically involving direct OEM or tier-supplier relationships. Sub-assemblies such as bosses, flanges, and manifolds are produced in-house for assembly to larger fabrications.
2. Diesel/Fuel Tank Manufacturing and Aftermarket Sales: The company manufactures and supplies steel and aluminium fuel/diesel tanks for Leyland/DAF, Volvo/Renault, and Scania vehicles. Tanks are sold as replacement parts (OEM-style, using original tooling) to fleet operators and the aftermarket, with direct overnight shipping. Both old and new tank designs are available using original Warwick & Bailey Engineering tooling and fixtures.
3. Defence Ammunition Container Manufacturing: Design, development, and manufacture of specialised military packaging and ammunition containers for the UK Ministry of Defence and overseas defence procurement departments. Includes smoke grenade canisters, mortar bomb containers, 155mm charge containers, missile containers (Hellfire/Longbow), propellant storage containers, and custom self-contained storage/transportion units. Revenue is project-based and contract-driven, often involving long-standing government procurement relationships.
4. HGV Dual Fuel Conversion Systems: Permoid offers dual fuel conversion systems (Quicksilver AFI-6 sequential LPG injection system) for heavy commercial vehicles, sold through sister company Mercury Fuel Systems. The system replaces 26–50% of diesel with LPG/BioLPG. Permoid acts as an initial sales contact, with Mercury Fuel Systems handling R&M (repairs and maintenance) on converted vehicles.

Go-to-market motion2 records

Distribution channels2 records

Marketing channels2 records

Core offering

Permoid Industries Ltd is a UK-based metal fabrication and manufacturing company that produces steel and aluminium fuel tanks for commercial vehicles (Leyland/DAF, Volvo/Renault, Scania and others), military ammunition containers and press work for the UK MoD and overseas defence customers, and heavy fabrications and machined components for earthmoving equipment OEMs (JCB, Komatsu, Caterpillar). All processes—laser cutting, robotic welding, CNC machining, stress relieving, painting, and assembly—are carried out in-house at its Newton Aycliffe facility using original Warwick & Bailey Engineering tooling for the Leyland/DAF tank range.

Product overview

Permoid Industries Ltd is a UK-based manufacturer offering a diversified portfolio of metal fabrication and machining products. The core offerings include steel and aluminium fuel/diesel tanks for commercial vehicles (Leyland, DAF, Volvo, Renault, Scania, Mercedes, MAN, Iveco), military ammunition containers and press work for the Ministry of Defence and overseas defence departments, and general fabrication and machining services including laser cutting, CNC machining, and welding. A complementary product line is HGV dual fuel conversion systems using LPG/BioLPG technology, provided through sister company Mercury Fuel Systems. The company operates in-house capabilities across the entire manufacturing chain from raw materials to finished, tested products.

Differentiator

Problem solved

Functional benefit

Brands

• Warwick & Bailey Engineering: Holding company for steel tank manufacturing, originally suppliers of lightweight steel diesel tanks to Leyland Truck production facility and Paccar spare parts division.
• Mercury Fuel Systems

Products and services

• Leyland & DAF Steel Fuel Tanks Steel diesel/fuel tanks manufactured to suit Leyland and DAF vehicles using original tooling and fixtures from Warwick & Bailey Engineering. Tanks are pressure tested for leaks before painting and fit directly to vehicles. Sold as OEM-style replacement parts to fleet operators and the aftermarket, and as production parts to OEMs.
• Ammunition Containers & Press Work Military-grade ammunition containers and press work supplied to the UK Ministry of Defence and overseas defence procurement departments. Includes smoke grenade canisters, mortar bomb containers, 155mm charge containers, missile containers (Hellfire/Longbow), propellant storage containers, naval chaff shell containers, custom self-contained insulated storage and transportation containers for tropical climates, and pressed metal parts and spring assemblies such as grenade striker mechanisms.
• Fabrications & Machining Full range of fabrications from lightweight assemblies to heavy complex structures for the earthmoving industry, including booms, arms, chassis assemblies, fuel tanks and hydraulic tanks. In-house post-processing includes stress relieving (3m depth oven), pickling and painting. Supplied to OEMs such as JCB, Komatsu UK and Caterpillar UK.
• Laser Cutting, Profiling & CNC Machining Laser profiling using five Bystronic machines (1.8 kW to 4.4 kW) cutting carbon steel, aluminium and stainless steel up to 25mm thickness, supplemented by oxygen/propane conventional profiling up to 200mm. CNC machining includes lathes, vertical machining centres and horizontal borers producing turned parts, bosses, flanges, manifolds and complex fabrications.
• Aluminium Tanks Aluminium diesel tanks manufactured to suit Volvo, Mercedes, MAN, Scania, DAF, Iveco and Renault vehicles, complementing the steel tank product lines.
• Volvo & Renault Steel Tanks Steel diesel/fuel tanks manufactured to suit Volvo and Renault commercial vehicles, developed to replace expensive aluminium tank variants.
• Scania Steel Tanks Steel diesel/fuel tanks manufactured to suit Scania commercial vehicles, with some units developed to replace expensive aluminium tank variants.
• HGV Dual Fuel Conversions Dual fuel conversion systems for heavy commercial vehicles using the Quicksilver AFI-6 sequential LPG injection system, replacing 26–50% of diesel with LPG/BioLPG to cut fuel costs (up to 15% saving) and reduce carbon emissions. Permoid acts as initial sales contact, with sister company Mercury Fuel Systems handling repairs and maintenance on converted vehicles.

Quantifiable outcome

• Dual fuel conversion replaces 26–50% of diesel fuel with LPG/BioLPG
• +2 more outcomes

Named customers11 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

Feature8 records

Partnerships

Seven partnerships are on record, tiered core, minor and flagship.

• Warwick & Bailey EngineeringcoreOthersPermoid Industries Ltd is the holding company of Warwick & Bailey Engineering, which was the original supplier of lightweight steel diesel tanks to the Leyland Truck production facility and Paccar spare parts division. Permoid holds all the original tooling for the Warwick & Bailey steel tank range that was supplied to Leyland Trucks, DAF Trucks, and Paccar Parts. Tanks continue to be manufactured at the Newton Aycliffe site using this original tooling.
• Mercury Fuel SystemscoreStrategic or Co-development PartnerSister company and partner for HGV dual fuel conversion systems. Mercury Fuel Systems designed and developed the Quicksilver AFI-6 sequential LPG injection system specifically for the HGV transport sector. Permoid acts as initial sales contact for dual fuel conversions, with Mercury Fuel Systems handling repairs and maintenance (R&M) on converted vehicles. Mercury Fuel Systems is also a partner displayed on the Permoid contact page.
• Curl ModuconsminorOthersListed as a division/partner on the Permoid Industries Ltd contact page under 'Divisions & Partners'. No further details on the nature of the relationship are provided on the website.
• Lockheed MartinflagshipStrategic or Co-development PartnerPermoid Industries Ltd worked alongside Lockheed Martin and Engineered Plastic Designs in support of the Hellfire and Longbow missile containers. These aluminium containers included specialised internal furniture to suit different missile types. A total of 2,351 containers were supplied in support of the UK Military in association with the purchase of Apache Helicopters. This represents a major defence programme partnership.
• Engineered Plastic DesignscoreTechnology or IntegrationPartnered with Permoid Industries and Lockheed Martin in the development and manufacture of aluminium Hellfire and Longbow missile containers with specialised internal furniture for different missile types.
• BystroniccoreTechnology or IntegrationAll five laser profiling machines operated by Permoid Industries are Bystronic units, ranging from 1.8 kW to 4.4 kW. Bystronic is a leading manufacturer of laser cutting and bending systems. The partnership provides the core laser cutting capability for the company's fabrication operations.
• Autodesk (AutoCAD Mechanical Desktop / Inventor Professional)coreTechnology or IntegrationPermoid uses Autodesk Inventor Professional for 3D design, finite element analysis, and piping/wiring systems on vehicles. Also uses AutoCAD Mechanical Desktop for profile drawing. These software tools enable the company's in-house engineering department to support product development from sketch form to full 3D models.

Scale indicators6 records

Recent moves7 records

Expansion highlights4 records

Broad incumbents

• Senior plc: UK-listed engineering group serving aerospace, defence, and automotive with engineered metal components and assemblies. Operates at significantly larger scale than Permoid but with overlapping exposure to the same commercial vehicle, aerospace, and defence OEM customer base.
• Meggitt: UK-headquartered aerospace and defence engineering group (now part of Parker) with engineered components and systems for military and commercial platforms. Comparable overlap with Permoid's defence packaging and aerospace-military customer base, but at substantially larger scale and broader product scope.
• Marshall Aerospace and Defence Group: UK-based aerospace MRO, engineering, and defence systems manufacturer with deep UK MoD ties. Comparable customer base and UK defence manufacturing footprint to Permoid, though Marshall operates at much larger scale and includes MRO and vehicle systems beyond Permoid's packaging focus.

Direct peers

• Brandauer: UK-based precision presswork and metal stamping manufacturer serving industrial OEMs in Birmingham. Highly comparable to Permoid's mid-sized UK fabrication business serving commercial vehicle and industrial OEM customers, with similar scope in metal stamping, tooling, and tier-supply relationships.
• Chemring Group: UK-listed defence group manufacturing countermeasures, smoke grenades, and energetic payload containers for UK and allied militaries. Closely comparable to Permoid's ammunition container and propellant storage business, with similar UK MoD customer base and packaging-for-munitions engineering focus.
• NP Aerospace: UK-based manufacturer of military packaging, armour, and vehicle protection systems based in Coventry. Most directly comparable peer for Permoid's defence packaging and ammunition container line, including similar UK MoD relationships and engineered container/protective solutions.
• Darchem Engineering: UK-based aerospace thermal/acoustic insulation and engineered fabrication specialist now part of Senior plc. Comparable to Permoid's aerospace/defence container fabrication capabilities, with similar UK manufacturing base and tier-supply relationships with aerospace primes.
• Cox Manufacturing: US-based precision metal fabrication and CNC machining supplier serving aerospace, defence, and industrial OEMs. Comparable to Permoid's precision fabrication, CNC machining, and OEM tier-supply model, with similar defence container/capability intersection.
• Stadco Automotive: UK tier-1 automotive metal stamping and fabrication supplier headquartered in Telford. Closely comparable to Permoid's commercial vehicle OEM fabrication and chassis/structural component work, with similar positioning as a precision fabricator serving global vehicle OEMs.
• Avon Protection: UK-headquartered defence manufacturer of protective equipment and engineered military products. Comparable to Permoid's engineered defence packaging and military specification manufacturing, with overlapping UK MoD customer base and similar engineered-metal-product positioning.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries2 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 Permoid