# 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.

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.

🇬🇧 Belfast · 30 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Queen's University Belfast](https://www.tamtam.ai/c/queen-s-university-belfast) (qub.ac.uk)<br>A renowned university with over 150 years of academic excellence, offering a wide range of degree programs and a strong research focus | Higher Education | 🇬🇧 Belfast | 7,278 | 1845 |
| 2 | [Ulster University](https://www.tamtam.ai/c/ulster-university) (ulster.ac.uk)<br>A multi-campus university in Northern Ireland, focused on research, teaching, employability, and industry collaboration to support student success and career readiness | Higher Education | 🇬🇧 Belfast | 5,911 | 1968 |
| 3 | [Kainos](https://www.tamtam.ai/c/kainos) (kainos.com)<br>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 | 🇬🇧 Belfast | 3,317 | 1986 |
| 4 | [FinTrU](https://www.tamtam.ai/c/fintru) (fintru.com)<br>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 | 🇬🇧 Belfast | 1,032 | 2013 |
| 5 | [Liberty IT](https://www.tamtam.ai/c/liberty-it) (liberty-it.co.uk)<br>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 | 🇬🇧 Belfast | 835 | 1997 |
| 6 | [Farrans Construction](https://www.tamtam.ai/c/farrans-construction) (farrans.com)<br>Leading civil engineering and building contractor specializing in innovative, sustainable solutions for water, energy, aviation, transportation, marine, public, industrial, and commercial sectors. | Construction | 🇬🇧 Belfast | 652 | 1941 |
| 7 | [Totalmobile Ltd](https://www.tamtam.ai/c/totalmobile-ltd) (totalmobile.com)<br>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 | 🇬🇧 Belfast | 429 | 1985 |
| 8 | [Dale Farm Ltd](https://www.tamtam.ai/c/dale-farm-ltd) (dalefarm.com)<br>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 | 🇬🇧 Belfast | 415 |  |
| 9 | [Omexom UK](https://www.tamtam.ai/c/omexom-uk) (omexom.co.uk)<br>Specializing in electricity generation, transmission, distribution, and substation design and construction to support the energy transition for clients in the UK and Ireland | Construction | 🇬🇧 Belfast | 394 | 1998 |
| 10 | [PwC \| Operate](https://www.tamtam.ai/c/pwc-operate)<br>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 | 🇬🇧 Belfast | 357 | 2017 |
| 11 | [Grant Thornton (NI) LLP](https://www.tamtam.ai/c/grant-thornton-ni-llp) (grantthorntonni.com)<br>A growing professional services firm offering innovative solutions to business challenges with a focus on long-term relationships and core values | Professional Services | 🇬🇧 Belfast | 190 | 1899 |
| 12 | [H & J Martin Limited](https://www.tamtam.ai/c/h-and-j-martin-limited) (hjmartin.co.uk)<br>A construction company with over 175 years of experience, specializing in asset management, construction, and fit out services within Ireland | Construction | 🇬🇧 Belfast | 183 | 1840 |
| 13 | [Lagan Specialist Holdings](https://www.tamtam.ai/c/lagan-specialist-holdings) (laganscg.com)<br>Undertakes specialist contracting activities including Aviation & Infrastructure, Piling, Operations and Maintenance, Facilities Management, Fit Out, civil engineering, and building projects globally. | Construction | 🇬🇧 Belfast | 175 |  |
| 14 | [Belfast International Airport](https://www.tamtam.ai/c/belfast-international-airport) (belfastairport.com)<br>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 | 🇬🇧 Belfast | 132 |  |
| 15 | [MiFinity](https://www.tamtam.ai/c/mifinity) (mifinity.com)<br>A global payments provider offering cost-effective and secure payment solutions for online gaming, travel, Forex, and eCommerce sectors worldwide | Financial Services | 🇬🇧 Belfast | 113 | 2002 |
| 16 | [Fern Software](https://www.tamtam.ai/c/fern-software) (fernsoftware.com)<br>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 | 🇬🇧 Belfast | 110 | 1979 |
| 17 | [JP Corry](https://www.tamtam.ai/c/jp-corry) (jpcorry.com)<br>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 | 🇬🇧 Belfast | 109 |  |
| 18 | [SYNERGY \| GLOBE TRAVEL RETAIL](https://www.tamtam.ai/c/synergy-globe-travel-retail) (synergypromotions.ie)<br>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 | 🇬🇧 Belfast | 86 |  |
| 19 | [Barclay Communications](https://www.tamtam.ai/c/barclay-communications) (barclaycomms.com)<br>Leading provider of business mobile, landline, and digital solutions, offering award-winning software for workflow management, tracking, and communications services | Technology, Information and Internet | 🇬🇧 Belfast | 83 | 1997 |
| 20 | [Cushman & Wakefield \| McCombe Pierce](https://www.tamtam.ai/c/cushman-and-wakefield-mccombe-pierce) (cushwake-ni.com)<br>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 | 🇬🇧 Belfast | 75 | 1994 |
| 21 | [Northern Property](https://www.tamtam.ai/c/northern-property) (northernproperty.com)<br>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 | 🇬🇧 Belfast | 68 | 2006 |
| 22 | [Galen Ltd](https://www.tamtam.ai/c/galen-ltd) (galen-pharma.com)<br>A privately owned pharmaceutical company selling medicines in pain management, dermatology, and gastroenterology globally, focused on customer care and partnerships | Pharmaceutical Manufacturing | 🇬🇧 Belfast | 67 | 1968 |
| 23 | [Fitzwilliam Hotel Belfast](https://www.tamtam.ai/c/fitzwilliam-hotel-belfast) (fitzwilliamhotelbelfast.com)<br>A contemporary five-star hotel in Belfast city center with modern meeting spaces, personalized service, and close proximity to shops and attractions | Hospitality | 🇬🇧 Belfast | 58 | 2009 |
| 24 | [TCB Group Ltd](https://www.tamtam.ai/c/tcb-group-ltd) (tcbgroup.com)<br>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 | 🇬🇧 Belfast | 58 | 2007 |
| 25 | [Pentagon Solutions Ltd.](https://www.tamtam.ai/c/pentagon-solutions-ltd) (pentagonsolutions.com)<br>A leading CAD & BIM consultancy in the UK & Ireland, specializing in engineering data management, software implementation, training, and BIM standards compliance | Software Development | 🇬🇧 Belfast | 52 | 2002 |
| 26 | [Lightyear](https://www.tamtam.ai/c/lightyear) (lightyear.cloud)<br>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 | 🇬🇧 Belfast | 51 | 2017 |
| 27 | [ViS Security Solutions Limited](https://www.tamtam.ai/c/vis-security-solutions-limited) (vis-security.com)<br>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 | 🇬🇧 Belfast | 36 | 1989 |
| 28 | [Prestige Insurance Holdings Limited](https://www.tamtam.ai/c/prestige-insurance-holdings-limited) (prestigeholdings.co.uk)<br>Specialist insurance group in UK and Ireland offering broking, underwriting, and InsurTech services Committed to growth, market expansion, and customer satisfaction | Financial Services | 🇬🇧 Belfast | 33 | 1973 |
| 29 | [Identity Travel](https://www.tamtam.ai/c/identity-travel) (beyondbusinesstravel.com)<br>Deliver corporate travel solutions combining event expertise, advanced technology, sustainability, and global network for seamless business travel experiences. | Travel Arrangements | 🇬🇧 Belfast | 30 | 2010 |
| 30 | [Biztech Software](https://www.tamtam.ai/c/biztech-software) (biztechsoftware.co.uk)<br>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 | 🇬🇧 Belfast | 27 | 2007 |

## 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.

## More company lists in Belfast

- [The largest companies in Belfast](https://www.tamtam.ai/l/largest-companies-belfast) (163)

## The same list elsewhere in United Kingdom

- [Multinational companies in the United Kingdom](https://www.tamtam.ai/l/multinational-companies-united-kingdom) (7,458)
- [Multinational companies in Scotland](https://www.tamtam.ai/l/multinational-companies-scotland) (248)
- [Multinational companies in Northern Ireland](https://www.tamtam.ai/l/multinational-companies-northern-ireland) (84)
- [Multinational companies in Wales](https://www.tamtam.ai/l/multinational-companies-wales) (69)
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Source: https://www.tamtam.ai/l/multinational-companies-belfast