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30 leading multinational companies in Belfast

Tamtam tracks 35 multinational companies headquartered in Belfast. This list ranks the 30 largest by number of employees on LinkedIn, led by Queen's University Belfast, Ulster University and Kainos. Their median headcount is 113. Half of them were founded in 1997 or later.

馃嚞馃嚙 Belfast30 companiesUpdated Nov 11, 2026

This selection of multinational companies in Belfast showcases a mix of established institutions and growing technology firms. It includes two large universities, Queen's University Belfast and Ulster University, alongside IT services and software development companies such as Kainos, which uses technology to solve customer problems globally, and Liberty IT, specializing in innovation and customer interactions. Financial services are also represented by FinTrU, providing technology-based Client Lifecycle Management solutions.

A notable pattern in this group is the strong presence of companies founded in the late 20th and early 21st centuries, indicating a period of growth for Belfast's business landscape. Construction is also a prominent sector, with companies like Farrans Construction, specializing in sustainable solutions, and H & J Martin Limited, with over 175 years of experience in asset management and construction.

#CompanyIndustryHeadquarters EmployeesFounded
1
Queen's University Belfastqub.ac.uk

A renowned university with over 150 years of academic excellence, offering a wide range of degree programs and a strong research focus

Higher Education 馃嚞馃嚙 Belfast 7,278 1845
2
Ulster Universityulster.ac.uk

A multi-campus university in Northern Ireland, focused on research, teaching, employability, and industry collaboration to support student success and career readiness

Higher Education 馃嚞馃嚙 Belfast 5,911 1968
3
Kainoskainos.com

Utilizing technology to solve customer problems, Kainos transforms businesses and improves lives through Digital Services and the Workday Practice globally

IT Services and IT Consulting 馃嚞馃嚙 Belfast 3,317 1986
4
FinTrUfintru.com

Specializing in KYC, Compliance, Risk, and Legal services, this company creates technology-based Client Lifecycle Management solutions for global financial institutions from various locations worldwide

Financial Services 馃嚞馃嚙 Belfast 1,032 2013
5
Liberty ITliberty-it.co.uk

A technology company backed by global giant Liberty Mutual Insurance, specializing in problem-solving, innovation, and customer interactions with a focus on employee well-being

Software Development 馃嚞馃嚙 Belfast 835 1997
6
Farrans Constructionfarrans.com

Leading civil engineering and building contractor specializing in innovative, sustainable solutions for water, energy, aviation, transportation, marine, public, industrial, and commercial sectors.

Construction 馃嚞馃嚙 Belfast 652 1941
7
Totalmobile Ltdtotalmobile.com

Field service management organization providing technology to improve work and the lives of mobile workers, offering integrated solutions for operational excellence and ROI

Software Development 馃嚞馃嚙 Belfast 429 1985
8
Dale Farm Ltddalefarm.com

Farmer-owned dairy cooperative producing award-winning dairy products from local milk for retail, foodservice, and export markets, with a focus on innovation and sustainability

Food and Beverage Manufacturing 馃嚞馃嚙 Belfast 415 n/a
9
Omexom UKomexom.co.uk

Specializing in electricity generation, transmission, distribution, and substation design and construction to support the energy transition for clients in the UK and Ireland

Construction 馃嚞馃嚙 Belfast 394 1998
10
PwC | Operate

A provider of operational and managed services solutions for clients, focusing on regulatory, risk, and compliance issues with expertise in technology

Outsourcing and Offshoring Consulting 馃嚞馃嚙 Belfast 357 2017
11
Grant Thornton (NI) LLPgrantthorntonni.com

A growing professional services firm offering innovative solutions to business challenges with a focus on long-term relationships and core values

Professional Services 馃嚞馃嚙 Belfast 190 1899
12
H & J Martin Limitedhjmartin.co.uk

A construction company with over 175 years of experience, specializing in asset management, construction, and fit out services within Ireland

Construction 馃嚞馃嚙 Belfast 183 1840
13
Lagan Specialist Holdingslaganscg.com

Undertakes specialist contracting activities including Aviation & Infrastructure, Piling, Operations and Maintenance, Facilities Management, Fit Out, civil engineering, and building projects globally.

Construction 馃嚞馃嚙 Belfast 175 n/a
14
Belfast International Airportbelfastairport.com

Northern Ireland's principal airport serving over 70 domestic and international destinations, with a range of customer airlines, cargo services, and car parks

Airlines and Aviation 馃嚞馃嚙 Belfast 132 n/a
15
MiFinitymifinity.com

A global payments provider offering cost-effective and secure payment solutions for online gaming, travel, Forex, and eCommerce sectors worldwide

Financial Services 馃嚞馃嚙 Belfast 113 2002

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16
Fern Softwarefernsoftware.com

A global provider of banking software for inclusive financial institutions, offering solutions for improved operations, product development, and community support

IT Services and IT Consulting 馃嚞馃嚙 Belfast 110 1979
17
JP Corryjpcorry.com

A leading builders' merchant in Northern Ireland, offering a wide range of building materials, washroom solutions, and expert advice to trade and DIY customers

Wholesale Building Materials 馃嚞馃嚙 Belfast 109 n/a
18
SYNERGY | GLOBE TRAVEL RETAILsynergypromotions.ie

Nationwide promotions company specializing in promoting luxury goods in World Duty Free shops, providing specialized staff for Liquor, Fragrance, and Beauty promotions in the Travel Retail Industry

Retail 馃嚞馃嚙 Belfast 86 n/a
19
Barclay Communicationsbarclaycomms.com

Leading provider of business mobile, landline, and digital solutions, offering award-winning software for workflow management, tracking, and communications services

Technology, Information and Internet 馃嚞馃嚙 Belfast 83 1997
20
Cushman & Wakefield | McCombe Piercecushwake-ni.com

A leading global real estate firm in Northern Ireland offering a wide range of property solutions and services to local, national, and international clients

Leasing Non-residential Real Estate 馃嚞馃嚙 Belfast 75 1994
21
Northern Propertynorthernproperty.com

A leading Estate Agent and Property Consultant in Belfast, offering property sales, lettings, and management services with expertise in residential and commercial properties

Real Estate 馃嚞馃嚙 Belfast 68 2006
22
Galen Ltdgalen-pharma.com

A privately owned pharmaceutical company selling medicines in pain management, dermatology, and gastroenterology globally, focused on customer care and partnerships

Pharmaceutical Manufacturing 馃嚞馃嚙 Belfast 67 1968
23
Fitzwilliam Hotel Belfastfitzwilliamhotelbelfast.com

A contemporary five-star hotel in Belfast city center with modern meeting spaces, personalized service, and close proximity to shops and attractions

Hospitality 馃嚞馃嚙 Belfast 58 2009
24
TCB Group Ltdtcbgroup.com

Specialist freight forwarding company providing supply chain, warehousing, dangerous goods transport, and repatriation services with global reach and expert team.

Transportation, Logistics, Supply Chain and Storage 馃嚞馃嚙 Belfast 58 2007
25
Pentagon Solutions Ltd.pentagonsolutions.com

A leading CAD & BIM consultancy in the UK & Ireland, specializing in engineering data management, software implementation, training, and BIM standards compliance

Software Development 馃嚞馃嚙 Belfast 52 2002
26
Lightyearlightyear.cloud

An all-in-one cloud-based platform for intelligent purchasing and accounts payable, providing automated processes, seamless integrations, and award-winning solutions globally

Software Development 馃嚞馃嚙 Belfast 51 2017
27
ViS Security Solutions Limitedvis-security.com

Specializing in bespoke physical security solutions, this UK and Ireland-based company creates comprehensive and collaborative security systems for national and international clients

Security and Investigations 馃嚞馃嚙 Belfast 36 1989
28
Prestige Insurance Holdings Limitedprestigeholdings.co.uk

Specialist insurance group in UK and Ireland offering broking, underwriting, and InsurTech services Committed to growth, market expansion, and customer satisfaction

Financial Services 馃嚞馃嚙 Belfast 33 1973
29
Identity Travelbeyondbusinesstravel.com

Deliver corporate travel solutions combining event expertise, advanced technology, sustainability, and global network for seamless business travel experiences.

Travel Arrangements 馃嚞馃嚙 Belfast 30 2010
30
Biztech Softwarebiztechsoftware.co.uk

A leading provider of advanced betting-shop software in the UK, offering innovative solutions like Arkle for bet-slip processing and risk management

Software Development 馃嚞馃嚙 Belfast 27 2007

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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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