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The 30 largest multinational companies in Bristol

Tamtam tracks 41 multinational companies headquartered in Bristol. This list ranks the 30 largest by number of employees on LinkedIn, led by Imperial Brands PLC, Zellis and Amdaris. Their median headcount is 341. Half of them were founded in 2000 or later.

πŸ‡¬πŸ‡§ Bristol30 companiesUpdated Nov 11, 2026

The multinational companies based in Bristol are primarily established firms, with a strong presence in software development, financial services, and specialized manufacturing. Imperial Brands PLC, for example, is a global FMCG business focused on tobacco harm reduction. Zellis provides payroll and HR services for large companies, while Computershare UK offers transfer agency and financial services globally. Graphcore specializes in AI technology with unique processors.

Many of these companies, such as Inspiring Vet Care and Independent Vetcare, are also prominent in veterinary services. There is a notable cluster of companies founded in the 21st century, indicating recent growth in sectors like software and AI. The listed companies range from large enterprises like Imperial Brands to mid-sized firms, reflecting a diverse business landscape within the city.

#CompanyIndustryHeadquarters EmployeesFounded
1
Imperial Brands PLCimperialbrandsplc.com

An innovative global FMCG business with inclusive culture, focused on tobacco harm reduction, sustainability, and strong international brands

Manufacturing πŸ‡¬πŸ‡§ Bristol 29,000 n/a
2
Zelliszellis.com

A leading provider of payroll, HR, and managed services in the UK and Ireland for large companies, serving millions of employees annually

Software Development πŸ‡¬πŸ‡§ Bristol 1,534 1963
3
Amdarisamdaris.com

Providing innovative software development, product design, digital transformation, application support, and consultancy services from UK and Eastern Europe.

Software Development πŸ‡¬πŸ‡§ Bristol 958 2009
4
Computershare UKcomputershare.com

Global leader providing transfer agency, share registration, employee equity plans, mortgage servicing, proxy solicitation, stakeholder communications, and diversified financial services worldwide

Financial Services πŸ‡¬πŸ‡§ Bristol 838 n/a
5
Graphcoregraphcore.ai

A company specializing in AI technology with a unique processor designed to accelerate machine learning models and drive breakthroughs in general machine intelligence

Semiconductor Manufacturing πŸ‡¬πŸ‡§ Bristol 697 2016
6
IOP Publishingioppublishing.org

A global publisher working with researchers to produce academic journals, books, and conferences in the physical sciences, supporting open science and access

Book and Periodical Publishing πŸ‡¬πŸ‡§ Bristol 640 n/a
7
Inspiring Vet Careivcevidensia.co.uk

A leading veterinary services provider with over 1,300 clinics in 12 European countries, prioritizing clinical independence, international collaboration, and employee development

Veterinary Services πŸ‡¬πŸ‡§ Bristol 593 2011
8
Sandersonsandersonplc.com

Global recruitment solutions provider specializing in permanent/contract hires, executive search, RPO/MSP, project teams, and personalized service excellence for clients and candidates worldwide

Staffing and Recruiting πŸ‡¬πŸ‡§ Bristol 479 1975
9
Assystem Technologies UKassystemtechnologies.com

A global partner offering engineering services, quality, and digital solutions in aerospace, automotive, defense, finance, industry, and transportation sectors

Mechanical Or Industrial Engineering πŸ‡¬πŸ‡§ Bristol 442 1966
10
Clifton Collegecliftoncollege.com

Clifton College provides all-round education, pastoral care, self-discovery, and excellence in a fun, friendly environment that encourages belonging for all

Education Administration Programs πŸ‡¬πŸ‡§ Bristol 430 1862
11
Sanderson Solutions Groupsandersonplc.com

Global recruitment solutions company with 40 years of experience, specializing in tailored recruitment services including individual hires, project teams, executive search, and fully outsourced solutions

Staffing and Recruiting πŸ‡¬πŸ‡§ Bristol 415 n/a
12
delaware United Kingdom & Irelanddelaware.co.uk

A global consultancy partnering with leading technology providers to deliver digital solutions, guiding clients towards an intelligent future with over 4,000 professionals worldwide

IT Services and IT Consulting πŸ‡¬πŸ‡§ Bristol 361 2003
13
Independent Vetcareivcevidensia.co.uk

A group of leading veterinary practices in the UK focus on clinical excellence, putting pet and client needs first while prioritizing independence

Veterinary πŸ‡¬πŸ‡§ Bristol 352 2011
14
AMIamiplastics.com

Provider of market intelligence, data, conferences, and digital content for the global plastics industry to support informed business decisions.

Information Services πŸ‡¬πŸ‡§ Bristol 350 1986
15
Prysm Groupprysmgroup.co.uk

Organizing B2B trade exhibitions worldwide for over 20 years with a portfolio of 33 shows, catering to niche and global markets

Advertising Services πŸ‡¬πŸ‡§ Bristol 341 2000

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16
Immersiveimmersivelabs.com

Focuses on people-centric cyber resilience, aiming for organizations to be threat-ready and capable of demonstrating this readiness to leadership and stakeholders.

Computer and Network Security πŸ‡¬πŸ‡§ Bristol 335 2017
17
Project Peopleprojectpeople.com

Global talent acquisition and management solutions provider, offering recruitment services, RPO, talent technology systems, payroll services, and project-based assignments across various industries

Staffing and Recruiting πŸ‡¬πŸ‡§ Bristol 298 n/a
18
Rise Technicalrisetechnical.co.uk

Finds, attracts, and places outstanding permanent and contract engineering and technical talent for businesses of all sizes, focusing on motivational and technical matching.

Staffing and Recruiting πŸ‡¬πŸ‡§ Bristol 279 2005
19
Opus Recruitment Solutionsopusrecruitmentsolutions.com

A dynamic IT and Engineering recruitment consultancy with global operations, known for high-quality solutions and rapid growth in various industry awards

Staffing and Recruiting πŸ‡¬πŸ‡§ Bristol 233 2008
20
Gloster Furnituregloster.com

Designing and crafting high-quality outdoor furniture inspired by timeless beauty, using the best materials and techniques for enjoyable moments outdoors

Furniture and Home Furnishings Manufacturing πŸ‡¬πŸ‡§ Bristol 189 1981
21
Inside Travel Group | B Corpβ„’insidetravelgroup.com

Specialist tour operator offering unique group tours and tailored travel to Japan and Asia, with unrivalled advice and support from experienced team

Travel Arrangements πŸ‡¬πŸ‡§ Bristol 169 2000
22
Business Show Mediabusinessshowmedia.co.uk

An event company supporting SMEs and startups by organizing big business events globally, featuring various co-located shows and offering essential services/products

Events Services πŸ‡¬πŸ‡§ Bristol 153 n/a
23
Stirling Dynamicsstirling-dynamics.com

An advanced engineering company providing high-end products and services globally, specializing in aerospace and marine platforms with a focus on customer satisfaction

Aviation and Aerospace Component Manufacturing πŸ‡¬πŸ‡§ Bristol 147 1987
24
ALD Automotive UKaldautomotive.co.uk

Global leader in sustainable mobility solutions with full-service leasing, fleet management, and multi-mobility services for large corporates, SMEs, professionals, and individuals

Financial Services πŸ‡¬πŸ‡§ Bristol 133 1958
25
Nova Systems Internationalnovasystems.com

Global engineering services and technology solutions company, specializing in keeping nations and people safe through defense, essential services, and cybersecurity partnerships worldwide

Engineering Services πŸ‡¬πŸ‡§ Bristol 105 2012
26
McBraidamcbraida.com

Precision manufacturer of components for high-quality industries, utilizing turning, milling, EDM, and grinding expertise UK and Poland factories with AS/EN 9100 and NADCAP approvals

Aviation and Aerospace Component Manufacturing πŸ‡¬πŸ‡§ Bristol 97 n/a
27
StorMagicstormagic.com

StorMagic provides innovative solutions for edge data storage and security, offering highly available virtual SAN and encryption key management for organizations worldwide

Software Development πŸ‡¬πŸ‡§ Bristol 83 2006
28
Xledger UKxledger.com

A leading provider of cloud-based finance software, helping businesses streamline and automate their finances globally with real-time insights and efficiency gains

Software Development πŸ‡¬πŸ‡§ Bristol 69 2000
29
Cegedim Insurance Solutions (International Division)cegedim-insurance.com

Cegedim Insurance Solutions provides Saas solutions and services for insurers and brokers in the health and life insurance sector, internationally

IT Services and IT Consulting πŸ‡¬πŸ‡§ Bristol 63 1969
30
Luxury Lodgesluxurylodges.com

Luxury Lodges offers luxury holiday experiences in beautiful locations, providing amazing escapes for couples and families with a knowledgeable and happy team

Hospitality πŸ‡¬πŸ‡§ Bristol 54 2015

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How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 11, 2026.

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