NIS
NIS Ltd is a UK engineering and manufacturing firm that designs, fabricates and commissions bespoke plant and equipment — principally glovebox containment systems — for civil nuclear, defence nuclear and technology customers including Sellafield, UKAEA, AWE, BAE Systems and Cavendish Nuclear.
- Company typePrivate
- Founded1983
- HeadquartersChorley, United Kingdom
- Headcount101–250
- GTM typeB2B
- OfferingServices
What NIS does
NIS Ltd is a UK-based specialist engineering and manufacturing firm established in 1983 in Chorley, Lancashire, operating as a subsidiary of NIS Holdings Ltd (which also owns NSG Environmental Ltd and Hold Engineering Ltd). The company designs, fabricates, integrates and commissions bespoke plant and equipment — most notably high-integrity glovebox containment systems and precision-welded structures — for civil nuclear, defence nuclear, science & technology, aerospace and food-industry customers. Technical capabilities centre on a 3,500m² Chorley production facility with dedicated stainless-steel fabrication bays, supported by a regional office in Reading/Aldermaston, and accreditations including EN ISO 3834 (welding quality), EN 1090 Execution Class 4, ISO 9001/14001/45001 and BPSS/SC/DV security clearances.
NIS makes money primarily through project-based engineering and manufacturing services sold directly to enterprise and government clients in the UK nuclear and defence sectors. Revenue is generated via bespoke contracts (e.g., the SRP glovebox lines for Sellafield), long-term framework agreements (a 10-year £25m Sellafield Personal Access Doors Framework), and participation in tiered supply chains to primes such as AWE, BAE Systems, Cavendish Nuclear, Amentum, and the PPP consortium at Sellafield. The go-to-market is enterprise field sales supported by framework qualification rather than volume or self-service channels, with go-to-market reinforced by membership in the UKAEA Design and Build Framework (2025), Sellafield PPP Design Supplier Network, and (from 2026) the AMTecH manufacturing consortium. Group revenue exceeded £36m in the financial year ending March 2025, with headcount above 250 across the NIS Holdings Ltd group.
NIS firmographics
Firmographics- Name
- NIS
- Legal name
- NIS Ltd
- Website
- https://nisltd.com
- Company type
- Private
- Founded year
- 1983
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- NIS Ltd is a UK engineering and manufacturing firm that designs, fabricates and commissions bespoke plant and equipment — principally glovebox containment systems — for civil nuclear, defence nuclear and technology customers including Sellafield, UKAEA, AWE, BAE Systems and Cavendish Nuclear.
- Ownership category
- akta.pro rank
NIS industry classification
Industry- Product category
- Nuclear Engineering and Manufacturing Services
- NAICS
- Industrial Machinery Manufacturing (33324), Electrical Equipment Manufacturing (3353), Mining and Oil and Gas Field Machinery Manufacturing (33313)
- SIC
- Special Industry Machinery, Nec (3559), Electrical Industrial Apparatus (3620)
- akta.pro primary industry
- Nuclear Power Plant Operations & Maintenance (O&M) (EUACADAO)
- akta.pro secondary industries
- Non-Destructive Testing (NDT) & Advanced Inspection (Phased Array, TOFD, Guided Wave) (EUAEAKAF), Component Qualification, Testing & Certification (Seismic, Environmental, EMI/EMC) (EUAKADAO), Nuclear Plant EPC & Construction (EUAEAAAC), NDT/NDE Inspection Equipment (Ultrasonic, eddy current, radiography, thermography) (IMAGAFAI)
Keywords
Where NIS is headquartered
LocationHeadquarters
- HQ city
- Chorley
- HQ country
- United Kingdom
- HQ region
- Europe
Offices2 records
Markets served
NIS business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Infrastructure, Supply Chain, Marketing or Sales
Revenue model
- Engineering and Manufacturing Services: NIS provides bespoke design and manufacture of plant and equipment across civil nuclear, defence nuclear, and technology sectors. Revenue is generated through project-based engineering services, manufacturing, assembly, integration, and site support.
- Nuclear Glovebox Manufacturing: Specialized manufacturing of glovebox containment systems for nuclear and defence applications, including first-of-a-kind modularised designs for flagship defence projects.
Go-to-market motion1 record
Distribution channels3 records
Marketing channels6 records
NIS product offering
Product offeringCore offering
NIS Ltd provides bespoke design, manufacture, integration, and site support of plant and equipment for the civil nuclear, defence nuclear, and science & technology sectors. The company delivers full engineering lifecycle support from concept, scheme, and detail design through to manufacturing readiness, validation, and commissioning, with in-house mechanical and electrical manufacturing, precision welding (MMA, MAG, TIG) accredited to ISO 3834 and EN 1090 Execution Class 4, and a recognised centre of excellence in glovebox design and manufacturing for nuclear containment.
Product overview
NIS Ltd is an engineering and manufacturing company offering a portfolio of integrated services across civil nuclear, defence nuclear, and science & technology sectors. The company operates a single unified service model providing end-to-end engineering lifecycle support, from concept and design through manufacturing, integration, assembly, and site installation. Core offerings include Engineering Services (concept to commissioning), Constructability Services, Manufacturing (mechanical and electrical), Integration and Assembly, and Site Support. The company has established itself as a centre of excellence for glovebox design and manufacturing within the nuclear sector, producing high-integrity containment solutions including SRP glovebox lines for Sellafield projects.
Differentiator
Problem solved
Functional benefit
Products and services
- Engineering Services
- Constructability Services
- Manufacturing Services
- Integration and Assembly
- Site Support
- Glovebox Manufacturing
- Civil Nuclear Services
- Defence Nuclear Services
- Science & Technology Solutions
Quantifiable outcome
- 20 consecutive RoSPA Gold Awards (Order of Distinction)
- +1 more outcomes
Companies that use NIS
Customer profileNamed customers7 records
Segments5 records
Ideal customer profiles3 records
NIS technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
NIS partnerships and signals
Strategic signalPartnerships
Eight partnerships are on record, tiered minor and core.
- Advanced Manufacturing Technology Hub (AMTecH)minorNIS became a member of AMTecH, launched in 2024 to bring together organisations committed to tackling UK manufacturing challenges. The community aims to accelerate innovation, win work collectively, and strengthen UK manufacturing capability.
- Centre for Leadership Performance (CforLP)minorNIS is partnering with CforLP for the second edition of 'I Believe In You' programme - a six-month programme offering personalised support to young people aged 16 to 25 facing career challenges or uncertainty.
- UKAEA (United Kingdom Atomic Energy Authority)coreNIS will support the UKAEA Design and Build Framework, utilizing extensive engineering and manufacturing expertise to help develop solutions for nuclear industry challenges.
- Sellafield Ltd (PPP)coreNIS supports the Sellafield Programme and Project Partners (PPP) Design Supplier Network for delivering major infrastructure projects at Sellafield site.
- Inspire Youth Zone ChorleyminorNIS became a patron of Inspire Youth Zone Chorley, a vital children's charity providing a safe, welcoming environment for young people through mentoring and support programmes. NIS supports through various fundraising events and community engagement.
- Programme and Project Partners (PPP)coreNIS is delivering the SRP (Sellafield Product and Residue Store Retreatment Plant) project in collaboration with PPP and Sellafield Ltd. NIS is responsible for manufacturing and testing of two glovebox lines for the SRP facility. PPP is responsible for delivery of a 20-year pipeline of major infrastructure projects at the Sellafield site.
- NSG Environmental LtdminorSister company within NIS Group. NSG Environmental Ltd hosted the NIA Decommissioning and Waste Management Business Group event where NIS facilities were showcased.
- Hold Engineering LtdminorSister company within NIS Group.
Scale indicators5 records
Recent moves9 records
Expansion highlights5 records
NIS competitors and assessment
Company assessmentDirect peers
- Cavendish Nuclear: UK nuclear services and engineering firm delivering decommissioning, defence nuclear, and new build support. Direct overlap with NIS as both a customer and a competitor in nuclear containment and project delivery to Sellafield and AWE.
- Nuvia: UK-headquartered nuclear specialist engineering and site services provider across decommissioning, defence, and new build. Directly comparable scope of mechanical/electrical fabrication and site support that NIS supplies to the same nuclear customer base.
Broad incumbents
- Altrad: Global industrial and nuclear services group offering scaffolding, insulation, mechanical services, and nuclear support. Competes with NIS for nuclear mechanical contracting work via Altrad's nuclear-specific business units operating in the UK.
- Bilfinger UK: Industrial services provider with significant UK nuclear footprint delivering engineering, fabrication, and maintenance services. Comparable to NIS in nuclear fabrication and site support, though within a much broader industrial services portfolio.
- Westinghouse UK: Major nuclear technology company with UK operations across new build, fuel, and decommissioning. Competes with NIS in nuclear plant equipment supply and engineering services to UK nuclear clients.
- AtkinsRéalis (Nuclear): Global engineering services firm with a UK nuclear practice covering new build, decommissioning, and defence nuclear. Overlaps with NIS on engineering design and project services for the same Sellafield, NDA, and AWE-style customers.
- Jacobs (Critical Mission Solutions / Nuclear): Global professional services firm with major nuclear decommissioning and defence nuclear contracts, including significant work at Sellafield. Competes with NIS for engineering and programme support across the UK nuclear estate.
- Veolia Nuclear Solutions: Nuclear decommissioning and waste management services provider with UK operations at Sellafield. Adjacent comparable — competes for nuclear waste treatment and decommissioning mandates that overlap with NIS's glovebox/containment scope.
- Mott MacDonald (Nuclear): Global engineering consultancy with a UK nuclear division covering new build, decommissioning and defence nuclear advisory. Competes with NIS for engineering design scopes on nuclear programmes in the UK.
Regional players
- Assystem: France-headquartered engineering firm with nuclear specialism across new build, decommissioning, and EPR delivery, with growing UK nuclear activity. Comparable to NIS in nuclear engineering and project services, though primarily France-based.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat5 records
Key risks5 records
Key highlights6 records
Customer concentration
NIS social profiles
Digital presenceNIS compliance and trust
Trust signalCompliance10 records
NIS financial estimates
Financial estimateRevenue estimate
Valuation estimate
NIS leadership team
Management profileNumber of profiles
Profiles6 records
NIS funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
NIS M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about NIS
What does NIS do?
NIS Ltd provides bespoke design, manufacture, integration, and site support of plant and equipment for the civil nuclear, defence nuclear, and science & technology sectors. The company delivers full engineering lifecycle support from concept, scheme, and detail design through to manufacturing readiness, validation, and commissioning, with in-house mechanical and electrical manufacturing, precision welding (MMA, MAG, TIG) accredited to ISO 3834 and EN 1090 Execution Class 4, and a recognised centre of excellence in glovebox design and manufacturing for nuclear containment.
Is NIS a public or private company?
NIS is a private company. It is classified as unknown and is currently operating.
When was NIS founded?
NIS was founded in 1983. It employs 101 to 250 people.
Where is NIS based?
NIS is headquartered in Chorley, United Kingdom, in the Europe region.
How does NIS make money?
Two revenue lines are on record. Engineering and Manufacturing Services are the primary driver. The others are nuclear Glovebox Manufacturing.
Who are NIS's main competitors?
Direct peers on record are Cavendish Nuclear and Nuvia. Broad incumbents are Altrad, Bilfinger UK, Westinghouse UK, AtkinsRéalis (Nuclear), Jacobs (Critical Mission Solutions / Nuclear), Veolia Nuclear Solutions and Mott MacDonald (Nuclear). Assystem is listed as a regional player.
Does NIS have an API?
No public API is recorded for NIS.
What industry is NIS in?
NIS's product category is Nuclear Engineering and Manufacturing Services. Its primary akta.pro industry code is EUACADAO, Nuclear Power Plant Operations & Maintenance (O&M), with a secondary code of EUAEAKAF, Non-Destructive Testing (NDT) & Advanced Inspection (Phased Array, TOFD, Guided Wave). Its NAICS code is 33324 and its SIC code is 3559.