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Top Tech Companies in Belfast (534)

Sixteen South
News + Entertainment
Belfast
23 Employees

We make television for every child in every home in every country around the world. We're a group of three companies which creates, produces and distributes our work. We create shows without creative boundaries - whether that's 2D, 3D, live action or puppetry. We passionately believe in more.

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Sixteen South
UnitedHealth Group
29 Offices
400,000 Employees
43 Benefits

UnitedHealth Group is a health care and well-being company with a mission to help people live healthier lives and help make the health system work better for everyone. We are 340,000 colleagues in two distinct and complementary businesses working to help build a modern, high-performing health system through improved access, affordability, outcomes and experiences. Optum delivers care aided by technology and data,...

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UnitedHealth Group

UnitedHealth Group's Top Stability & Growth Strengths

Strong Market Position & Advantage: Rankings on the 2026 Fortune 500 and Global 500 reflect industry-leading revenue scale. AM Best identifies the company as the largest public insurer in the U.S./Canada, with Optum Rx among the "Big 3" PBMs.

Diversified Revenue Streams: A vertically integrated model spans UnitedHealthcare and Optum (Health, Insight, Rx), combining insurance, care delivery, pharmacy benefits, and analytics. This breadth supports performance across funding cycles and care settings.

Strong Revenue Growth: Consolidated revenue rose to about $447.6 billion in 2025 from $400.3 billion in 2024, and 2026 has delivered consecutive quarters around $112 billion while full-year earnings guidance was raised.

McGraw Hill
15 Offices
5,455 Employees
44 Benefits

At McGraw Hill, we empower the curious. Our market-leading innovations create a brighter future for learners, educators and institutions around the globe. Our vision: Unlock the full potential of each learner. Our mission: Accelerate learning through intuitive, engaging, efficient and effective experiences. We have a collective passion for learning and thrive on meeting the evolving needs of students, educators and institutions. We're committed...

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McGraw Hill
Egress
Cybersecurity
3 Offices
320 Employees

Our mission is to eliminate the most complex cybersecurity challenge every organization faces: insider risk. We understand that people get hacked, make mistakes, and break the rules. To prevent these human-activated breaches, we have built the only Human Layer Security platform that defends against inbound and outbound threats. Using patented contextual machine learning we detect and prevent abnormal human behavior...

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Egress
Ecotricity
Energy
2 Offices
500 Employees

The World’s first green electricity company: Green Electricity didn't exist in the world back in 1996. When we offered it for the first time, we became not just Britain’s but the world’s first Green Electricity company – and we kick-started the now global Green Electricity movement. Our mission was and remains to change the way electricity is made and used in...

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Ecotricity
Sysco Ireland
Food • Logistics
5 Offices
562 Employees
10 Benefits

Sysco is the leading foodservice provider on the island of Ireland. Our team of 1,500 people deliver food solutions to more than 10,000 customers each week. Operating from a central Dublin location and eight regional centres, we guarantee next-day island-wide delivery; we are the only food business in the country capable of delivering on our customers’ expectations regardless of how...

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Sysco Ireland
G4S
Security
15 Offices
76,216 Employees
13 Benefits

G4S is the world’s leading global, integrated security company, specialising in the provision of security services and solutions to customers. Our mission is to create material, sustainable value for our customers and shareholders by being the supply partner of choice in all our markets. G4S is active in around 85 countries and has around 533,000 employees. For more information on...

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G4S
Ernst & Young
Professional Services • Consulting
32 Offices
350,000 Employees
44 Benefits

EY exists to build a better working world, helping create long-term value for clients, people and society and build trust in the capital markets. Enabled by data and technology, diverse EY teams in over 150 countries provide trust through assurance and help clients grow, transform and operate. Working across assurance, consulting, law, strategy, tax and transactions, EY teams ask better questions to...

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Ernst & Young
aPriori Technologies
2 Offices
400 Employees
23 Benefits
aPriori helps leading manufacturers make products for a better world on time and on budget while also minimizing the env

aPriori delivers strategic insights for Manufacturers to continuously decide how to design a product and where to manufacture it to optimize cash flow, accelerate revenue growth, and improve margin. This unique collaborative platform combines Product Cost Management, Design for Manufacturability and Sustainability, and Supplier Collaboration capabilities. The platform includes more than 450 manufacturing process simulation and more than 80 regional...

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aPriori Technologies

aPriori Technologies's Top Stability & Growth Strengths

Strong Market Position & Advantage: Analyst awards and repeated positioning as a leading specialist in simulation-driven should-costing/DFM support a strong niche competitive position, with differentiation around CAD-driven “digital factory” simulation plus CO2e insights.

Investor Backing & Capital Strength: Multiple funding events are cited (Series D in 2021 and a growth investment/credit facility in 2023), indicating access to capital consistent with continued scaling and product investment.

Innovation-Driven Growth: Ongoing cloud releases and stated expansion of AI-driven and sustainability capabilities indicate active product development intended to maintain differentiation and support adoption.

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Verint
Software • Automation
12 Offices
4,090 Employees
21 Benefits

Verint® helps the world’s most iconic brands build enduring customer relationships by connecting work, data, and experiences across the enterprise. With this approach, brands can navigate and thrive as they adapt to the future of work, eliminate the inefficiencies created by organizational and data silos, and consistently deliver differentiated experiences at scale across every interaction. Our solutions help brands close...

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Verint

Verint's Top Stability & Growth Strengths

Strong Market Position & Advantage: Industry evaluations frequently recognize Verint as a leader in its core WEM and VoC/analytics niches, reflecting durable strengths in forecasting, scheduling, quality, and analytics. Recent IDC and DMG assessments underscore its leadership posture and open‑platform approach in CX automation.

Innovation-Driven Growth: ARR associated with AI modules is expanding faster than the broader base, and multiple analyst reports highlight Verint’s AI/automation strategy on an open platform. Feedback suggests momentum in AI bots and analytics is driving adoption within its customer engagement portfolio.

Healthy Cash Flow: Management has guided to increased free cash flow for the fiscal year alongside steady ARR expansion. This points to improving cash generation even as the company advances its subscription transition.

Otsuka America Pharmaceutical
Internet of Things • Pharmaceutical
4 Offices
3,516 Employees
39 Benefits

There are two Otsuka pharmaceutical industry companies in the U.S.: Otsuka America Pharmaceutical, Inc. (OAPI) successfully commercializes Otsuka-discovered and in-licensed products in North America. Otsuka Pharmaceutical Development & Commercialization, Inc. (OPDC) clinically develops and registers innovative healthcare products on a global basis.

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Otsuka America Pharmaceutical

Otsuka America Pharmaceutical's Top Stability & Growth Strengths

Strong Revenue Growth: Recent disclosures indicate double-digit growth at the parent level with North America identified as the largest and expanding region. Management attributes momentum to U.S.-marketed medicines such as REXULTI, ABILIFY MAINTENA, and JYNARQUE powering the pharmaceutical segment.

Strong Market Position & Advantage: The company is repeatedly portrayed as a leader in mental health and nephrology, supported by first-in-class and category-defining therapies. Flagship assets like aripiprazole long-acting injectables, REXULTI’s Alzheimer’s agitation indication, and JYNARQUE underpin durable positioning in core niches.

Innovation-Driven Growth: Multiple approvals, priority reviews, and acquisitions underscore an active pipeline across CNS and renal diseases. Examples include FDA priority review for centanafadine, accelerated approval for sibeprenlimab, digital therapeutic launches, and targeted deals to strengthen U.S. capabilities.

Kingsbridge Healthcare Group
Belfast
220 Employees

Welcome! We are Northern Ireland’s Premier Private Healthcare Group. Our mission is to become a world-class provider of healthcare solutions by putting our patients to the forefront of everything we do. Our aim is to make the Kingsbridge Healthcare Group the preferred choice for both patients and healthcare professionals. Because Life Matters. Companies within the Kingsbridge Healthcare Group include: Kingsbridge...

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Kingsbridge Healthcare Group
eduthing
Edtech • Hardware • Information Technology • Software
2 Offices
75 Employees
1 Benefits

Working solely within the education sector, we have gained a unique insight into schools. We understand that schools come in all shapes and sizes and that our support needs to be completely flexible to accommodate the diverse range within the UK. We are a forward thinking, proactive and flexible company, that prides itself on providing the highest level of customer satisfaction....

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eduthing
Framestore
Digital Media • Virtual Reality • Design
7 Offices
2,620 Employees
11 Benefits

Framestore brings extraordinary ideas to life in any space or screen through craft, imagination and technology. Offices in London, New York, Los Angeles, Montréal, Chicago, Melbourne, Vancouver, and Mumbai. Current film projects include: Fantastic Beasts: The Crimes of Grindelwald, Detective Pikachu, Dumbo, Captain Marvel, Alita: Battle Angel and Mary Poppins Returns. We were the recent proud recipients of both the...

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Framestore
DMI (Digital Management, LLC)
Artificial Intelligence • Information Technology • Internet of Things • Security • Analytics
25 Offices
2,000 Employees
39 Benefits

DMI is a global technology solutions company that specializes in digital strategy, design, transformation and support. Utilizing expertise from six unique DMI Groups, in the areas of AI & Analytics, Commerce, Experience, Managed Services, Transformation, and Government, DMI delivers intelligent digital transformation solutions that meet organizations where they are. Born digital, DMI has been delivering mission-critical, enterprise grade solutions since...

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DMI (Digital Management, LLC)
AesthetiDocs
Healthtech • Software
Belfast
5 Employees

AesthetiDocs combines Online Bookings & Documentation providing everything you need to run your whole clinic. Take your Aesthetic Clinic to the next level with AesthetiDocs bespoke booking and documentation application. Bookings, reminders, consent, documentation, prescriptions, aftercare photographs and payments can be managed by yourself or your clinic staff depending on your needs. A simple way to ensure you’re doing everything correctly to run...

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AesthetiDocs
Oxford Instruments
9 Offices
2,000 Employees
38 Benefits

Oxford Instruments is a leading provider of high technology tools and systems for research and industry. We design and manufacture equipment that can fabricate, analyse and manipulate matter at the atomic and molecular level. Our purpose is to enable a greener, healthier, more connected advanced society. Oxford Instruments has discrete business groups operating in three sectors. This means we can focus...

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Oxford Instruments
Camlin Group
Information Technology • Software • Energy • Renewable Energy
5 Offices
315 Employees
1 Benefits Hiring Now

Transforming critical energy & rail infrastructures for our shared future. With bold determination and a spirit of invention, we're optimising the crucial systems of a resilient future — turning possibilities into progress every day.

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Camlin Group
GitHub
Software
3 Offices
3,232 Employees
30 Benefits

GitHub is the best place to share code with friends, co-workers, classmates, and complete strangers. Over 31 million people use GitHub to build amazing things together across 97+ million repositories. With all the collaborative features of GitHub, it has never been easier for individuals and teams to write faster, better code.

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GitHub

GitHub's Top Stability & Growth Strengths

Strong Market Position & Advantage: GitHub is widely regarded as the category leader with unmatched scale, network effects, and community gravity that make it the default hub for collaboration and discovery. Its rich ecosystem, social discoverability, and enterprise-grade options reinforce adoption across organizations.

Innovation-Driven Growth: AI-assisted development via Copilot and an end-to-end workflow (Actions, Packages, security, Codespaces) are catalyzing usage and deepening engagement. Tight IDE and platform integrations reduce friction and anchor developers in the product.

Market Expansion: Rapid growth in developers, repositories, and contribution activity indicates broad-based expansion, with AI availability accelerating sign-ups. Enterprise momentum alongside rising AI adoption suggests widening reach across both individuals and organizations.

SimplyIOA
Insurance
6 Offices
77 Employees
3 Benefits

At SimplyIOA we make insurance simple for our partners and our customers. We’re innovators – our fully integrated platform is the first of its kind for personal insurance products. Our story (so far) ... 2022 Scale - Expanded to 48 states - Launched Simply Partnerships - On track for $75m in premium - Serving 30k customers 2021 Growth - Achieved first $1m Premium April 2021 - Sold 2,000 policies -...

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SimplyIOA

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