What Penman Engineering Limited does

Penman Engineering Limited is the trading brand of Martin Williams (Hull) Ltd, a family-owned specialist vehicle manufacturer founded in 1990 by Martin Williams and now run by his sons Nick and Chris Williams. The company designs, builds and integrates armoured vehicles, cash-in-transit (CIT) vehicles, EOD/IEDD vehicles, military trailers, specialist commercial vehicles and complete systems integration packages, serving UK and overseas military, government, security and commercial fleet customers. Operations are headquartered on an 11-acre site in Burstwick, East Yorkshire, with a second manufacturing site in Dumfries, Scotland, originally established following the 2020 acquisition of the Penman Engineering brand and assets.

The business is a tier-one vehicle converter and integrator rather than a volume OEM, working on long-cycle, bespoke programmes with major vehicle OEMs and defence prime contractors. Its offering spans new-build armoured and specialist vehicles, Re-Role/Life Extension programmes to extend the service life of in-service fleets, and full systems integration of customer-furnished mission equipment onto base platforms. The group holds ISO 9001, ISO 14001 and ISO 45001 certifications, supporting its positioning with security-cleared defence and government buyers.

Revenue is generated through project-based, bespoke contracts with public and private sector customers; pricing is not publicly disclosed and is typically programme-by-programme. The customer base spans UK Government and military end-users, allied overseas military customers, cash-in-transit security operators, local authorities and commercial fleet buyers. The current commercial focus is on a multi-million pound expansion of the Dumfries facility, adding over 50,000 sq ft of production space and roughly doubling group headcount from 165 to support growing order intake across armoured, CIT and specialist vehicle programmes.

Name

Penman Engineering Limited

Legal name

Martin Williams (Hull) Ltd

Website

https://penman.co.uk

Company type

Private

Founded year

1990

Operating status

Operating

Headcount range

11–50 employees

Short description

Penman Engineering Limited is a family-owned UK specialist vehicle manufacturer that designs, armours and integrates armoured, cash-in-transit, EOD and military vehicles for defence, government and commercial customers from sites in Hull and Dumfries.

Ownership category

akta.pro rank

Product category

Specialist Military and Armoured Vehicle Manufacturing

NAICS

Military Armored Vehicle, Tank, and Tank Component Manufacturing (336992)

SIC

Ordnance & Accessories, (No Vehicles/Guided Missiles) (3480)

akta.pro primary industry

Armored Personnel Carriers (APCs) (IMABAJAC)

Keywords

• Armoured vehicle manufacturing
• Military vehicle conversion
• Cash-in-transit vehicles
• Vehicle systems integration
• Vehicle life extension services

Headquarters

HQ city

Burstwick

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Custom Vehicle Manufacturing: Design, development, manufacture and support of protected vehicles and specialist non-armoured vehicles for worldwide markets. Includes saloon cars, 4x4/6x6 SUVs, light vans, utility trucks, specialist trucks, and construction equipment.
2. Vehicle Conversion Services: Conversion and armoring services for cash-in-transit, military, and specialist vehicle applications. Includes both standard range and custom security solutions.
3. Re-Role/Life Extension Services: Refurbishment, upgrade and life extension services for vehicles with extensive use. Includes chassis mechanical refurbishment, operational module upgrades, and environmental control systems upgrades.

Go-to-market motion2 records

Distribution channels2 records

Marketing channels4 records

Core offering

Penman (a brand of Martin Williams (Hull) Ltd) designs, develops, manufactures and supports specialist and armoured/protected vehicles for military, security, and commercial customers worldwide. Its portfolio covers ballistic and attack-protected vehicles (including cash-in-transit vehicles), EOD/IEDD vehicles, military trailers, specialist non-armoured vehicles (command and control, communications, training, logistics), and supporting services such as Re-Role/Life Extension refurbishment and vehicle systems integration.

Product overview

MW Scotland (Penman) operates as a specialist vehicle manufacturer offering a portfolio of protected and specialist vehicle products alongside engineering services. The core product line includes armoured vehicles, cash-in-transit vehicles, EOD vehicles, military trailers, and specialist vehicles (covering command and control, communications, training, and logistics applications). These products are complemented by re-role/life extension services and systems integration capabilities, enabling the company to deliver complete vehicle solutions from design and manufacture through to refurbishment and upgrade. The company serves military, government, and commercial security sectors worldwide.

Differentiator

Problem solved

Functional benefit

Products and services

• Armoured Vehicles Design, development, manufacture and support of a wide range of protected vehicles for worldwide military and security markets, including saloon cars, 4x4/6x6 SUVs, light vans/chassis cabs, utility trucks, specialist trucks, construction equipment, and mine clearing equipment.
• Cash in Transit Vehicles Ballistic and attack-protected security vehicles for the Cash-in-Transit sector, providing totally integrated hardware and operating software solutions for high street collection, trunking, bulk coin carrying, schools, leisure centre, car park meter and ATM servicing vehicles.
• EOD Vehicles Complex vehicles for Explosive Ordnance Disposal (EOD), Improvised Explosive Device Disposal (IEDD) and Electronic Counter Measure (ECM) applications, available on commercial van/truck chassis through to specialist military 4x4 and 6x6 off-road vehicles with various armour schemes, including complete system solutions with EOD robots, equipment and training.
• Military Trailers Design and manufacture of robust light and medium-weight military trailers for harsh environments worldwide, including lightweight skeletal trailers for military generator transport, lightweight general cargo trailers, lightweight mobile workshop trailers, medium-weight single-axle trailers with hydraulic or air braking, and medium-weight double generator trailers.
• Specialist Vehicles Design and manufacture of commercial and military specialist non-armoured vehicles including Rapid Intervention Fire Vehicles (RIV), Land Rover 6x6 Conversions, Specialist Command and Control Vehicles, Mobile Training Units, Mobile Communications Units, and Specialist Logistics Vehicles.
• Re-Role/Life Extension Services Full-service capability to re-role or extend the life of vehicles with extensive use, including chassis mechanical refurbishment, operational module refurbishment, re-armouring and up-armouring, design and manufacture of new sub-systems, chassis and driveline modifications, and situational awareness and communications retrofit, capable of doubling effective platform life.
• Systems Integration Specification, design and integration of vehicle-based mechanical, electrical and electronic systems as part of broader, complex fixed and mobile programme solutions, delivered in close collaboration with major vehicle OEMs and Prime Contractors.

Quantifiable outcome

• Doubles effective life of vehicle platforms through Re-Role/Life Extension services
• +1 more outcomes

Named customers5 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Two partnerships are on record, tiered core.

• Major Vehicle OEMscoreStrategic or Co-development PartnerLong-standing relationships with major vehicle OEMs who value the capability, knowledge and reliability of the Vehicle System Engineering team. OEMs work with MW Scotland for specification, design and integration of complex vehicle systems.
• Prime ContractorscoreStrategic or Co-development PartnerClose working relationships with Prime Contractors for broader, complex fixed and mobile Programme Solutions. Prime Contractors trust MW Scotland's capability and reliability for critical vehicle integration projects.

Scale indicators4 records

Recent moves7 records

Expansion highlights4 records

Regional players

• Concept Remsa (UK): UK-based vehicle converter specialising in armoured and specialist vehicle builds for defence and security applications. A regional UK competitor with a similar conversion-and-armouring offering to Penman.

Broad incumbents

• Oshkosh Defense: Large US-based manufacturer of military tactical and protected vehicles (JLTV, FMTV, M-ATV). Overlaps with Penman's military vehicle work but at a much broader scale and tier-1 prime level.
• Rheinmetall Defence: Major European defence prime with broad armoured vehicle portfolio (e.g., Boxer, Fuchs). Competes with Penman on larger protected/military vehicle programmes, but as part of a much wider systems portfolio.
• BAE Systems Land UK: UK defence prime supplying armoured fighting vehicles (Ajax, CV90) and integrated land systems. Competes with Penman in the UK military vehicle market, but as a tier-1 prime with a much broader portfolio.

Emerging players

• Inkas Armored Vehicle Manufacturing: Canada-based manufacturer of armoured vehicles for military, law enforcement, CIT and VIP customers. Comparable niche armouring/conversion business model to Penman across military and CIT segments.
• Plasan Sasa: Israel-based designer and manufacturer of armoured vehicle platforms and add-on armour kits for military and security customers. Comparable to Penman in armoured vehicle engineering and life-extension/up-armouring capability.

Direct peers

• Supacat (SC Group): UK-based designer and manufacturer of high-mobility protected vehicles (e.g., HMT family) for military and special forces. Comparable niche player to Penman in specialist/protected military vehicle manufacturing.
• Jankel Armouring Limited: UK-based armouring and vehicle conversion specialist serving military, government and security customers with protected vehicle platforms. Directly comparable to Penman in armoured vehicle design, build and integration on OEM chassis.
• NP Aerospace: UK-based manufacturer of armoured vehicle platforms, survivability systems and integrated vehicle solutions for defence and security markets. Comparable to Penman in delivering protected vehicles and vehicle life-extension/up-armouring services.
• Marshall Land Systems: UK-based defence contractor providing military vehicle platforms, containerised solutions and vehicle integration. Comparable to Penman as a UK defence vehicle manufacturer/integrator serving MOD and allied customers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/penman-engineering-limited

Compliance3 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 Penman Engineering Limited