What Nasmyth Group does

Nasmyth Group is a UK-headquartered precision engineering company founded in 2003 and based in Coventry, operating from a global footprint spanning the United Kingdom, continental Europe, and the Asia Pacific region. The business is organised across four integrated divisions — Complex Machining, Fabrication & Welding, System Integration, and Metal Treatments — providing end-to-end capabilities from design and engineering through to inspection and final delivery. With over 500 specialists worldwide, Nasmyth operates as a Tier-1 precision engineering supplier to leading aerospace and defence OEMs, with a long-term £300 million contract with Rolls-Royce as its most prominent commercial anchor.

The company's technology stack spans precision multi-axis milling, CNC grinding, manual and CNC turning, complex welding (fusion, resistance), hydraulic press forming, plasma and water jet cutting, electro-mechanical assembly, cable and harness assembly, PCB assembly, and a portfolio of specialised metal surface treatments including HVOF, thermal barrier coating, anodising, electro-plating, shot peening, passivation, and multiple conversion coatings. Non-destructive testing capabilities include X-Ray, fluorescence penetrant inspection, hardness testing, tensile and conductivity testing, and metallographic examination. These are delivered under a vertically integrated model intended to reduce supplier complexity for OEM customers requiring strict aerospace and defence quality standards.

Nasmyth's commercial model is anchored in long-term, quote-based enterprise contracts with major OEMs, with revenue derived from contract manufacturing services and the sale of precision-engineered hardware. The company targets aerospace and defence as its primary verticals, with secondary exposure to energy, medical, space, and specialist automotive segments. On 3 November 2025, Nasmyth was acquired by Sigma Advanced Systems UK Ltd for approximately GBP 60 million, with the acquirer committing ₹450 crore for capacity and capability expansion of the combined business, granting Nasmyth access to Indian aerospace and defence procurement channels and the capital to scale its global Tier-1 supplier position.

Name

Nasmyth Group

Legal name

Nasmyth Group

Website

https://www.nasmythgroup.com/

Company type

Private

Founded year

2003

Operating status

Acquired

Headcount range

501–1,000 employees

Short description

Nasmyth Group is a UK-based precision engineering company providing machining, fabrication, welding, system integration, and metal treatments as a Tier-1 supplier to aerospace and defence OEMs worldwide. With 500+ specialists, it operates across the UK, Europe, and India.

Ownership category

akta.pro rank

Headquarters

HQ city

Coventry

HQ country

United Kingdom

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Precision Engineering Services: Nasmyth Group provides precision engineering solutions and metal treatments as a Tier-1 supplier to aerospace and defence OEMs. Revenue is generated through long-term contracts with major OEM customers for precision machined components, fabricated structures, and specialized metal treatments.
2. Contract Manufacturing: Manufacturing services for aerospace and defence components including complex machining, fabrication, welding, and assembly operations. Revenue derived from manufacturing work packages for OEM customers.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Nasmyth Group is a global Tier-1 precision engineering solutions provider delivering complex machining, fabrication and welding, electro-mechanical system integration, and specialized metal surface treatments to aerospace, defence, energy, medical, space, and specialist automotive OEMs. The company operates across four integrated service groups, offering full lifecycle management from design and engineering through to inspection and final delivery to meet strict aerospace and defence quality standards. Long-term contracts with major OEMs (notably a £300M Rolls-Royce contract) anchor the business.

Product overview

Nasmyth Group operates as a global precision engineering solutions provider organized across four main groups: Complex Machining (precision machining experts), Fabrication & Welding (complex structures and welding specialists), System Integration (electro-mechanical systems specialists), and Metal Treatments (metal surface treatment specialists). The company serves aerospace, defense, energy, medical, space, and specialist automotive markets, offering capabilities ranging from design and engineering through to final assembly, testing, and surface treatment. Following its acquisition by Sigma Advanced Systems UK Ltd in November 2025, the group maintains its specialized precision engineering focus while gaining expanded capacity and international reach.

Differentiator

Problem solved

Functional benefit

Products and services

• Complex Machining Precision machining service specializing in multi-axis milling, CNC grinding, manual and CNC turning, and mill turning operations. Delivered for aerospace and defence OEMs requiring precision-machined aerostructure and aero-engine components.
• Fabrication & Welding Complex structures and precision welding service offering fabrication, fusion welding, resistance welding, hydraulic press forming, plasma cutting, water jet cutting, and sheet metal details and assemblies. Targeted at aerospace and defence customers requiring complex fabrications.
• System Integration Electro-mechanical systems integration service covering assembly, testing, cable and harness assembly, PCB assembly, and electronic test. Targeted at aerospace, defence and industrial OEMs requiring assembled sub-systems.
• Metal Treatments Specialized metal surface treatment service covering electro-plating, anodising, conversion coatings, shot peening, HVOF, thermal barrier coating (TBC), paint spray and stoving, specialist painting, passivation, and related coatings. Targeted at aerospace, defence, energy, medical, space and specialist automotive customers needing surface treatments for harsh environments and regulatory compliance.

Quantifiable outcome

• £300M long-term contract with Rolls-Royce demonstrates ability to secure large-scale OEM work packages

Named customers2 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

Scale indicators4 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Senior plc: Senior plc is a UK-based precision engineering group serving aerospace, defense, and industrial markets through multiple divisions including fluid conveyance and structural assemblies. Nasmyth's UK roots, multi-divisional precision engineering model, and Tier-1 aerospace & defense OEM focus closely mirror Senior's structure.
• Meggitt plc: Meggitt is a UK-headquartered aerospace and defense components specialist with deep exposure to engine, airframe, and energy programs. Its combination of precision engineering, surface treatments, and Tier-1 OEM positioning makes it one of the closest direct comparables to Nasmyth's product mix.
• Sigma Advanced Systems: Sigma Advanced Systems is the India-headquartered parent that acquired Nasmyth and is described as India's largest manufacturer of aero-engine and aerostructure components. It is the most directly comparable peer because it competes in the same Tier-1 precision machining and aerostructure space.
• Ducommun Incorporated: Ducommun is a US provider of engineering and manufacturing services for aerospace and defense, including precision machining, fabrication, and assembly for engine and structural programs. The model of selling integrated build-to-print services to Tier-1 OEMs is structurally identical to Nasmyth's.
• Triumph Group: Triumph Group designs, engineers, manufactures, repairs, and overhauls aerospace and defense components, with strong positions in precision machined and fabricated assemblies. Its mix of OEM and aftermarket aerospace work and its Tier-1 supplier status make it a solid comparable to Nasmyth.
• Moog Inc. Moog designs and manufactures high-precision motion control and electro-mechanical systems for aerospace and defense, including components, assemblies, and specialty sub-systems. Its precision engineering and assembly capabilities overlap with Nasmyth's Complex Machining and System Integration groups.

Broad incumbents

• GKN Aerospace: GKN Aerospace is a global Tier-1 supplier of aerostructures, engine systems, and special products with substantial precision engineering and metal-treatment capabilities. As a much larger diversified aerospace incumbent, it overlaps with Nasmyth on fabrication, machining, and surface treatments but competes across a far wider product set.
• TransDigm Group: TransDigm is a US-based aerospace components platform that owns numerous niche suppliers of highly engineered parts, including specialty coatings and treatments supplied to engine and airframe OEMs. Its focus on proprietary sole-source parts parallels Nasmyth's specialized metal-treatment offering.
• Safran Group: Safran is a major French aerospace OEM with substantial in-house precision machining, fabrication, and surface-treatment operations supporting engine and equipment programs. While much larger and customer-overlapping, its capabilities in specialty metal treatments and Tier-1 supply make it directly comparable to Nasmyth on technology.
• Spirit AeroSystems: Spirit AeroSystems is one of the world's largest aerostructures manufacturers, supplying fuselages, wing structures, and propulsion components to major OEMs. Its fabrication, welding, and large-scale assembly operations overlap with Nasmyth's Fabrication & Welding and System Integration capabilities, although at much greater scale.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/NasmythGroup

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries4 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 Nasmyth Group