What Stonehill Engineering does

Stonehill Engineering is a UK precision machining subcontractor and division of Encocam Ltd, operating from a purpose-built facility in Huntingdon, Cambridgeshire. Established as the engineering arm of Encocam in 1988 and given its current name in 2008, the company runs a fleet of 15 CNC machines — including four 5-axis units from Mikron AgieChamilles, Deckel, and Dugard — supported by 3D CAD/CAM software (Alphacam, PowerMill), surface grinding, laser engraving, and a temperature/light-controlled inspection room equipped with a 3-axis QCT gantry CMM, Faro arm, Profile Projector and Height Gauge. Two Mikron machines feature a 7-pallet pool enabling SMED-based lights-out overnight and weekend production.

The company's core offering is a turnkey component-production process delivered in-house: product and tooling design, 3D CAD modelling, prototyping, testing, and full-batch production of complex, tight-tolerance precision parts. It is a major manufacturing partner to sister division Cellbond, producing parts for the Q10 crash test dummy, knee ligaments for pedestrian safety testing, and Advanced Pedestrian Leg Impactor (aPLI) components, alongside custom motorcycle parts for Herald Motor Company. Stated customer segments span automotive, defence, rail and transport, and scientific sectors.

Stonehill operates a B2B, project-based, quote-priced revenue model: customers contact the firm by phone for quotations, after which work is scoped from design through delivery. The business holds ISO 9001:2015 (Aviation, Aerospace and Defence scope) and ISO 14001:2015 certifications, sells into an export-led group with offices in the UK, Spain, Holland, Germany, US and Japan, and develops talent via an engineering apprenticeship programme delivered with Cambridge Regional College.

Name

Stonehill Engineering

Legal name

Encocam Ltd

Website

https://stonehillengineering.com

Company type

Private

Founded year

1988

Operating status

Operating

Headcount range

51–100 employees

Short description

Stonehill Engineering is a UK precision machining subcontractor (division of Encocam Ltd) producing complex 5-axis CNC components for automotive safety testing, defence, rail and scientific customers from its Huntingdon facility.

Ownership category

akta.pro rank

Headquarters

HQ city

Huntingdon

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Precision Engineering Manufacturing Services: Revenue generated from CNC machining, turning, surface grinding, and laser engraving services producing precision engineered parts. Services range from one-off prototypes to full-batch production.
2. Design and Engineering Services: In-house design department creating bespoke components, 3D CAD models, and engineering drawings. Close collaboration with customers at early product development stages.
3. Testing and Prototyping Services: Project management, prototyping, and testing services as part of complete component production process.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels4 records

Core offering

Stonehill Engineering provides precision engineered parts manufactured via CNC milling and turning, surface grinding, and laser engraving, backed by in-house design and prototyping, 3D CAD/CAM modelling, and a dedicated quality inspection function. Engagements range from one-off prototypes to full-batch production and serve automotive safety, defence, rail, transport, and scientific sector customers.

Product overview

Stonehill Engineering is a precision engineering division of Encocam Ltd, offering a comprehensive suite of precision manufacturing services from its Cambridgeshire facility. The core offerings include CNC Milling & Turning (using a fleet of 15 machines including 5-axis CNC equipment from Mikron, Deckel, and Dugard), Surface Grinding, and Laser Engraving services. The company provides complete turnkey solutions through integrated Design & Prototyping capabilities using 3D CAD/CAM technology (Alphacam, PowerMill), backed by a comprehensive Quality & Inspection department with coordinate measuring machines and precision instruments. The company specializes in custom parts manufacturing for crash test dummies, pedestrian safety equipment, and motorcycles, serving automotive, defence, rail, transport, and scientific sectors. A notable ancillary offering is their Engineering Apprenticeship program, which develops future talent for the precision engineering industry.

Differentiator

Problem solved

Functional benefit

Products and services

• CNC Milling and Turning Precision CNC milling and turning services using 5-axis machines, enabling complex parts to be produced with high accuracy in single setups for customers in automotive, defence, rail, transport, and scientific sectors.
• Surface Grinding Surface grinding service for creating flat or smooth surfaces on precision components, with a working area of 600mm x 300mm x 300mm.
• Laser Engraving Laser engraving service using a Laserscript LS6840 machine with a working area of 680mm x 400mm x 130mm, capable of engraving flat and cylindrical objects in steel, aluminium, rubber, plastic, glass, and anodized metals with permanent marks.
• Design and Prototyping In-house design services using 3D CAD technology (Alphacam, PowerMill) to create accurate engineering drawings, computer visual models, and solid models, including concept development, prototype creation, material selection advice, and product enhancement.
• Quality and Inspection Comprehensive quality inspection services performed in a temperature- and light-controlled inspection room, using a 3-axis QCT gantry-type CMM, Faro arm, roughness gauge, hardness tester, Profile Projector, Height Gauge, and precision mechanical instruments.
• Custom Parts Manufacturing Custom precision part manufacturing covering tools, moulds, and machined parts for industries including crash test dummies, pedestrian safety testing equipment, and motorcycle components.

Quantifiable outcome

• Inspection capacity increased by 50% with expanded quality inspection room
• +2 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Three partnerships are on record, tiered core.

• Cambridge Regional CollegecoreStrategic or Co-development PartnerEducational partnership supporting apprenticeship schemes. Apprentices attend college regularly with tutors visiting workplace to assess work. Collaboration on engineering, machining, and CNC qualifications (Level 2, Level 3, and Level 4).
• Encocam LtdcoreOthersStonehill Engineering is a division of Encocam Ltd. Shares overall mission and philosophy with parent company. Part of group including Cellbond, Corex Honeycomb, Bespoke Composite Panels, Mykon, Euro Road Safety, Herald Motor Company.
• CellbondcoreStrategic or Co-development PartnerCellbond is the automotive safety division of Encocam. Stonehill Engineering supports Cellbond's crash test dummy (ATD) work, manufacturing complex parts for Q10 Dummy and pedestrian safety testing products. Works closely with automotive manufacturers and safety testing organizations.

Scale indicators6 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Kemlows Precision Engineers: UK-based precision CNC machining and engineering services company offering multi-axis CNC milling, turning and prototyping — closely comparable to Stonehill's core offering of small-batch to full-batch precision machined components for industrial customers.
• Humanetics Innovative Solutions: Global leader in crash test dummy (ATD) systems and pedestrian safety testing equipment — directly upstream/downstream peer to Stonehill since Stonehill machines precision parts for ATD programs (Q10 dummy, aPLI) supplied into Humanetics' competitor Cellbond's ecosystem.
• Broadway Engineering: UK precision engineering company specialising in CNC machining of complex components for automotive, aerospace and industrial customers. Comparable to Stonehill on precision-tolerance work, prototype-to-production range and customer segments.
• Optec Precision Engineering: UK precision engineering firm providing CNC milling, turning and complex component manufacturing for demanding sectors including aerospace, automotive and scientific — directly comparable in customer base, equipment focus and project-based delivery model.
• Pentangle Engineering Services: UK precision CNC machining shop serving automotive, motorsport and industrial clients with both prototype and small-batch production. Comparable to Stonehill's model of close customer collaboration on complex, low-to-medium volume precision parts.

Broad incumbents

• Renishaw: Large UK-listed precision engineering and metrology group with motion control, additive manufacturing and encoder businesses. Comparable as a broader UK precision engineering incumbent with overlapping skills base and customer overlap in industrial/automotive sectors, though much larger and more diversified.
• Yamazaki Mazak: Global CNC machine tool manufacturer. Comparable as a participant in the same 5-axis CNC ecosystem that Stonehill operates within, though as a machine OEM rather than a service provider.
• Trumpf: German CNC machine tool and laser technology manufacturer. Comparable as a major equipment vendor in the precision metalworking space that Stonehill occupies, with overlapping customer base in European industrial/automotive supply chains.
• Hexcel Corporation: US-listed advanced composites manufacturer serving aerospace, automotive and industrial markets. Comparable as a safety-critical component supplier to automotive and aerospace primes, sharing customer overlap with Stonehill's automotive safety and defence-adjacent work.

Others

• Sandvik Coromant: Global metal-cutting tooling supplier serving CNC machining operations. Comparable as an enabling ecosystem participant — Sandvik tools are typically used in 5-axis CNC environments like Stonehill's, making it an adjacent supplier rather than direct competitor.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

Compliance2 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 Stonehill Engineering