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Top Tech Companies in Belfast (504)

Siemens
Artificial Intelligence • Internet of Things • Security • Cybersecurity
81 Offices
293,000 Employees
41 Benefits

Siemens is a technology company focused on industry, infrastructure, mobility, and healthcare. Creating technologies for more resource-efficient factories and resilient supply chains to smarter buildings and grids, to cleaner, comfortable transportation and advanced healthcare, the company empowers customers to transform the industries that form the backbone of economies, transforming the everyday for billions of people. In fiscal 2020, which ended on...

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Siemens

Siemens's Top Stability & Growth Strengths

Strong Market Position & Advantage: Siemens holds leading positions across industrial automation and software, smart infrastructure, mobility, and healthcare technology (via Siemens Healthineers), with multiple segments ranked first or second and significant contract wins expanding backlog. This breadth provides competitive advantage across diverse high-growth end markets.

Healthy Cash Flow: The company reports strong free cash flow at the Group level in FY2024 and subsequent quarters, supporting investment, M&A, and a new multi‑year share buyback program. Robust cash conversion across industrial businesses underpins financial flexibility.

Resilient & Sustainable Growth: Comparable revenue increased in FY2024 and continued to rise in FY2025 quarters, while orders and book‑to‑bill above 1, a record order backlog, and confirmed FY2025 guidance provide visibility. Growth is supported by electrification, data‑center demand, rail investments, and ongoing portfolio actions.

OCO Global
Marketing Tech • Software
4 Offices
181 Employees

OCO Global is a technology enabled advisory firm focused on trade, investment and economic development. We work with our clients to ensure that their international business thrives, by delivering innovative and sustainable outcomes and connecting them to opportunities across the world that create prosperity, employment and economic growth.

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OCO Global
Vertical Structure
Cybersecurity
Belfast
50 Employees
Vertical Structure offers protection and guidance in the complex world of cybersecurity.

Vertical Structure is an independent cyber security consultancy with a "human-first" approach. We specialize in providing human-focused security and penetration testing services for web applications, cloud infrastructure and mobile applications.

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Vertical Structure
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.

Allstate Northern Ireland
Information Technology • Software
2 Offices

Allstate in Northern Ireland is a leading technology and business services centre, supporting The Allstate Corporation - one of the largest publicly held personal lines insurers in the United States. Established as one of Northern Ireland’s most progressive employers, Allstate NI continues to drive innovation across emerging technologies that shape the future of how people live and work. Our teams are developing...

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Allstate Northern Ireland
The Depository Trust & Clearing Corporation (DTCC)
10 Offices
5,075 Employees
36 Benefits

With over 45 years of experience, DTCC is the premier post-trade market infrastructure for the global financial services industry. From 21 locations around the world, DTCC, through its subsidiaries, automates, centralizes and standardizes the processing of financial transactions, mitigating risk, increasing transparency and driving efficiency for thousands of broker/dealers, custodian banks and asset managers. Industry owned and governed, the firm...

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The Depository Trust & Clearing Corporation (DTCC)

The Depository Trust & Clearing Corporation (DTCC)'s Top Stability & Growth Strengths

Strong Market Position & Advantage: DTCC is consistently portrayed as the backbone and premier post-trade market infrastructure, with systemically important subsidiaries and a central depository role. Its multi-quadrillion processing scale and record activity, alongside very large assets under custody, reinforce entrenched advantage.

Strong Revenue Growth: Recent disclosures indicate higher revenue and net income driven by elevated clearing and settlement activity and record throughput. Growth is further supported by rising assets under custody and expanded clearing participation in U.S. Treasuries.

Innovation-Driven Growth: The firm is advancing tokenization services, distributed ledger initiatives, cloud modernization, and AI capabilities, with pilots and launches scheduled and broad industry collaboration. Leadership in T+1 implementation and new analytics offerings also point to product and platform expansion.

Thrive.App
HR Tech • Mobile • Software
Belfast
21 Employees

Thrive.App Ltd established in 2011, provides the technology and support to assist organisations in ‘powering’ up their internal communications and employee engagement. Our intuitive content management system enables anyone in your organisation to take charge of your company communications, creating and adding content to a single employee communications platform and distributing it to your teams’ mobile devices. Our clients range...

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Thrive.App
News Corp
Digital Media • News + Entertainment • Other
2 Offices
10,001 Employees
28 Benefits

News Corp is a global, diversified media and information services company focused on creating and distributing authoritative and engaging content and other products and services. The company comprises businesses across a range of media, including: digital real estate services, subscription video services in Australia, news and information services and book publishing. Headquartered in New York, News Corp operates primarily in...

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News Corp

News Corp's Top Stability & Growth Strengths

Diversified Revenue Streams: Operations span multiple segments—news publishing, book publishing, digital real estate, and information services—creating multiple earnings pillars beyond any single market cycle. Growth is described as being driven by Dow Jones, Digital Real Estate Services, and Book Publishing, indicating meaningful diversification of contributors.

Profitability: Profitability is described as accelerating, with Total Segment EBITDA growth and record segment EBITDA margins at Dow Jones. Share buybacks and an interim dividend are cited alongside improving adjusted earnings, reinforcing underlying profit strength despite some one-time items.

Future-Ready Strategy: Digital revenues are characterized as a growing and increasingly central part of the model, with an emphasis on subscriptions, data, and licensing. AI partnerships and content-licensing initiatives are positioned as incremental, multi-year monetization levers supporting adaptation to industry shifts.

Imagination
5 Offices
876 Employees
3 Benefits

Imagination is an Experience Design Company headquartered in London, with 13 studios worldwide. Founded over 50 years ago on a principle of Independent Creativity - we bring together diverse groups of strategic, creative and practical people to find creative and inspired answers to client challenges. We remain independent to this day. We have earned a reputation for consistently challenging and...

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Imagination
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Luxoft
Information Technology • Software • Consulting
27 Offices
15,405 Employees
16 Benefits

Luxoft, a DXC Technology Company (NYSE: DXC), is a digital strategy and software engineering firm providing bespoke technology solutions that drive business change for customers the world over. Acquired by U.S. company DXC Technology in 2019, Luxoft is a global operation in 44 cities and 21 countries with an international, agile workforce of nearly 18,000 people. It combines a unique...

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Luxoft
Celerion
Pharmaceutical
9 Offices
1,029 Employees
28 Benefits

Celerion, a leader in early clinical research, delivers Applied Translational Medicine. Celerion applies our expertise and experience to translating information gained in research discoveries, to knowledge of drug action and effect in humans to support early drug development decisions and the clinical pharmacology labeling of new medicines. With over 50 years of experience and 600 global clinic beds (including 24 in-hospital),...

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Celerion
Prestige Underwriting
3 Offices
104 Employees

Established in 1997, Prestige Underwriting has grown across the UK and Ireland to become a leading and trusted MGA. We continue to build upon our reputation by partnering with our clients to create bespoke standard and non-standard products that deliver results. Our people are focused on building the relationships that not only get our brokers to market but evolve and...

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Prestige Underwriting
Aspire Technology Solutions
Cloud • Information Technology • Cybersecurity
3 Offices
257 Employees

Welcome to Aspire Technology Solutions! We are an award-winning IT Managed Service and Cyber Security Provider. We deliver leading technology solutions across cyber security, cloud, connectivity, managed services and unified communications to help our customers drive real business benefits. Our mission is to deliver technology like no other; we are dedicated to putting technology to work to help our customers innovate,...

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Aspire Technology Solutions
WSP
Professional Services • Transportation • Energy • Design • Infrastructure as a Service (IaaS) • Manufacturing
44 Offices
7,500 Employees
34 Benefits

WSP is a leading engineering professional services consulting firm which supports significant projects in both the built and natural environments. We provide engineering and design services to public and private sector clients in the transportation and infrastructure, property and buildings, earth and environment, power and energy, resources and industry sectors, as well as a strategic advisory offering. We have more than...

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WSP
SSE
Greentech • Energy • Utilities • Renewable Energy
18 Offices
12,000 Employees
3 Benefits

The UK & Ireland's clean energy champion. We’re investing more than ever before in a cleaner, more affordable and more secure energy system. We are creating and supporting thousands of good jobs. We power change.

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SSE
Larsen & Toubro
Transportation • Energy • Defense • Industrial • Renewable Energy
34 Offices
140,000 Employees
5 Benefits

Headquartered in Mumbai, Larsen & Toubro Limited is one of the largest and most respected companies in India's private sector. With over 80 years of a strong, customer focused approach and a continuous quest for world-class quality, L&T has unmatched capabilities across technology, engineering, construction, and manufacturing, and maintains a leadership in all its major lines of business.

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Larsen & Toubro

Larsen & Toubro's Top Stability & Growth Strengths

Strong Revenue Growth: Recent quarters show double‑digit year‑on‑year growth in revenue and profit, with H1 FY26 continuing the positive trend. Order momentum across infrastructure and energy projects is supporting top‑line expansion.

Resilient & Sustainable Growth: Record order inflows have lifted the consolidated order book to historic levels, providing multi‑year execution visibility. Management guidance and modest improvement in project margins and working‑capital intensity indicate an emphasis on quality growth and resilience.

Market Expansion: International demand, notably in the Middle East, is driving a rising share of new orders and revenue. Large overseas wins in hydrocarbons and grid projects underscore expanding global reach beyond the domestic market.

Interface
Information Technology • Software
17 Offices
4 Employees
36 Benefits

Interface is a frontier research lab focused on high-fidelity human and object simulation. We build systems that model appearance, behavior, and interaction for world-model research. Founded by MIT graduates and backed by Y Combinator, we’re a deep-tech company in graphics, machine learning, and simulation.

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Interface
First Advantage
Information Technology
2 Offices
3,712 Employees
28 Benefits

First Advantage delivers comprehensive background check solutions and insights that enable employers and housing providers to make confident choices, reduce risk, and maintain compliance. With offices in 26 locations and a staff of 4,000+ employees, First Advantage leverages leading technology and the industry’s largest global capabilities to complete background checks in 200+ countries and territories. If you’re looking for employee...

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First Advantage

First Advantage's Top Stability & Growth Strengths

Strong Market Position & Advantage: First Advantage is positioned as a top-tier provider in background screening following the Sterling Check acquisition, creating a combined business with substantial scale and broad product capabilities. The company’s global footprint and deep enterprise penetration support competitiveness for large, compliance-sensitive programs.

Strong Revenue Growth: Revenue expanded materially from 2024 to 2025, reflecting the step-change from the Sterling acquisition alongside cited commercial momentum. Forward guidance for 2026 indicates continued year-over-year top-line growth off the larger base.

Customer Loyalty & Retention: Customer retention is described as strong, with retention in the mid-to-high range and notable growth attributed to upsell, cross-sell, and new logos. This suggests a relatively sticky customer base supporting resilience through varying hiring cycles.

AMPLY Discovery
Belfast

AMPLY Discovery uses machine learning and synthetic biology to mine vast biological data to discover novel biologic drug and nutraceutical candidates. Using a proprietary in silico and in vitro hybrid platform to discover best-in-class molecules AMPLY is helping tackle some of humankind's greatest challenges such as cancer, MDR infections and metabolic diseases. Based in Belfast, Northern Ireland. Spin out from Queen's...

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AMPLY Discovery
BenevolentAI
Artificial Intelligence • Machine Learning • Biotech
5 Offices
336 Employees
26 Benefits

BenevolentAI combines advanced AI and machine learning with cutting edge science to decipher complex disease biology, generate novel insights and discover more effective medicines. Our unique computational R&D platform spans every step of the drug discovery process, powering an in-house pipeline of 25+ drug programmes from early discovery towards clinical phases. With several successful collaborations with leading pharmaceutical organisations, we...

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BenevolentAI

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