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Top Tech Companies in Belfast (535)

Yell Limited
Agency • Digital Media • Information Technology • Marketing Tech
2 Offices
1,535 Employees
13 Benefits Hiring Now

Yell is a digital marketing and online directory business in the United Kingdom, offering services such as business listings, reputation reports, website checkers, search marketing, and display advertising to help small and medium-sized businesses improve their online presence.

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Yell Limited
Thales
Artificial Intelligence • Big Data • Information Technology • Security • Software
78 Offices
63,258 Employees
18 Benefits Hiring Now

Thales is a global high technology leader investing in digital and “deep tech” innovations – connectivity, big data, artificial intelligence, cybersecurity and quantum technology – to build a future we can all trust, which is vital to the development of our societies. The company provides solutions, services and products that help its customers – businesses, organisations and states – in...

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Thales

Thales's Top Stability & Growth Strengths

Strong Revenue Growth: Sales increased in 2025 versus 2024, with early 2026 also showing higher sales and management guiding to further organic growth in 2026.

Profitability: Adjusted EBIT rose and margins improved in 2025, indicating strengthening operating performance alongside growth.

Resilient & Sustainable Growth: Record order intake and an order book above €53 billion provide multi‑year visibility, and a book‑to‑bill above 1 with reaffirmed 2026 targets supports continued expansion.

NatWest Group
Fintech • Payments • Financial Services
35 Offices
40,000 Employees
18 Benefits Hiring Now

We’re a business that understands when our customers and people succeed, our communities succeed, and our economy thrives. As part of our purpose, we’re looking at how we can drive change for our communities in enterprise, learning and climate. As one of the leading supporters of UK business, we’re prioritising enterprise as a force of change. We’re focusing on the people...

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NatWest Group

NatWest Group's Top Stability & Growth Strengths

Profitability: Results highlight robust returns and earnings, indicating strong franchise economics versus many peers. Recent updates point to continued delivery into 2026.

Strong Market Position & Advantage: Independent awards and industry context point to leadership in UK corporate banking and a top‑tier position in core lending such as mortgages. The group sits in the leading cohort of UK incumbents with distinctive strength in SMEs and corporates.

Diversified Revenue Streams: Strategic moves into wealth management and selected portfolio acquisitions are positioned to expand fee income and balance interest‑driven revenues. Management frames these actions as accretive to growth and returns.

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.

Catagen
Greentech • Consulting
2 Offices
54 Employees

CATAGEN’s mission is to clean and decarbonise the air. We are a pioneering green emissions testing facility based in Belfast providing unrivalled metrics to optimise catalyst development and reduce harmful tailpipe emissions. Our expertise in the mobility sector and global emissions standards has led us to develop ClimaHtech technologies including Green Hydrogen. Our Core Business provides GREEN emissions testing to global...

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Catagen
Hootsuite
Digital Media • Marketing Tech • Social Media • Software • Analytics
8 Offices
5 Benefits
Hootsuite is the leader in social media management, helping brands harness the power of social to ignite their business.

Hootsuite has been on the pulse of how people use social media for over a decade. As the global leader and world’s first social media management platform, we put social to work in every corner of every organization, from the smallest business to the largest enterprise. We are committed to helping customers harness the power of social media to ignite...

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Hootsuite
HALO Body Cameras
2 Offices
63 Employees

HALO is a complete safety solution, using innovation to stay ahead of threat and reduce risk. Lives and businesses are better safeguarded by more advanced camera tech on the ground, and more intelligent asset management in the cloud. Our unique subscription model means customers can deploy the optimum number of devices without impacting their cash flow. It makes budgets go further...

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HALO Body Cameras
Punjab National Bank
Fintech • Software • Financial Services
2 Offices
22,234 Employees
7 Benefits

“Fired by the spirit of nationalism and founded on the idea that Indians should have a national bank of their own, which would further the economic interest of the country, Punjab National Bank Ltd was the result of the efforts of far-sighted visionaries and patriots, among whom were persons like Lala Lajpat Rai, Mr. E C Jessawala, Babu Kali Prasono...

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Punjab National Bank
Affidea
Healthtech • Professional Services
16 Offices
15,000 Employees
19 Benefits

Affidea is a pan-European diagnostic imaging and community-based polyclinic and specialist healthcare services provider, operating in Greece since 2005 to offer high-quality, integrated primary health services.

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Affidea
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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
CI&T
Information Technology • Consulting
22 Offices
6,474 Employees
28 Benefits

CI&T is your end-to-end digital transformation partner. As a digital native, we bring a 27-year track record of accelerating business impact through complete and scalable digital solutions. With a global presence of 6,000+ professionals in strategy, research, data science, design and engineering, we unlock top-line growth, improve customer experience and drive operational efficiency.

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CI&T
ABRSM
Music
2 Offices
622 Employees

ABRSM is one of the UK’s leading music education organisations, one of its largest music publishers and the world’s market leader in the provision of, and the setting of the international standard in, music exams, with around 650,000 assessments in more than 90 countries every year. As a registered charity, we make significant contributions to four Royal Schools of Music...

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ABRSM
Yelo
Hardware • Appliances
Carrickfergus
51 Employees

Yelo Limited are the world leaders in the manufacturing of laser diode burn-in and life testing equipment. We are a dynamic engineering company renowned for our bespoke and cutting edge technology, with a variety of customers ranging from large multinational corporations to smaller specialist companies, Yelo designs, manufactures and supports test solutions globally.

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Yelo
Phastar
Biotech • Consulting
3 Offices
399 Employees

Phastar is a specialist biometrics contract research organization offering statistical consulting, clinical trial reporting, data management and data science services by providing expert consultants and managing and delivering in-house projects, FSP-style arrangements and preferred partnerships. Our number one priority is ensuring on time, quality work: every project undertaken is supervised on methodology and utilizes internal processes designed to guarantee optimal...

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Phastar
Pitchbooking
Software • Sports
Belfast
13 Employees

Pitchbooking Ltd, founded in 2018 and headquartered in Belfast, is a scheduling and payments solution for sports facilities amd events. From football to ultimate frisbee, we make it easy for the public to get more active by encouraging sports participation in local communities and protecting the future of sports clubs and their facilities. Our award-winning pitch booking system and online management...

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Pitchbooking
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)
QBE LLC
Information Technology • Professional Services • Consulting • Defense
50 Offices
66 Employees

QBE LLC is a management and technology consulting organization that provides services to the federal government and defense communities, offering IT services, cybersecurity, cloud infrastructure, data management, and system engineering.

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QBE LLC
NetApp
Big Data • Cloud • Information Technology
30 Offices
12,824 Employees
42 Benefits

In a world of generalists, we are the specialists. #NetApp World-class data management and storage solutions in the biggest public clouds. Founded in 1992 and headquartered in San Jose, California, NetApp specializes in helping our customers get the most out of their data with industry-leading cloud data services, storage systems, and software. We have a service to meet your every need, plus the needs...

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NetApp

NetApp's Top Stability & Growth Strengths

Strong Revenue Growth: Q4 FY2026 revenue rose 12% year over year to $1.95B, with FY2026 up 5% to $6.93B. Guidance for FY2027 implies roughly 7–8% growth at the midpoint.

Profitability: FY2026 delivered record gross profit and operating income, with GAAP EPS up 12% for the year. Record Q4 and FY results underscore earnings strength exiting FY2026.

Healthy Cash Flow: Free cash flow rose 40% to $1.87B and operating cash flow grew 37% to $2.07B in FY2026. Strong cash generation supported $1.36B of capital returns via buybacks and dividends.

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
Electro Automation
5 Offices
86 Employees

Electro Automation is regarded as one of Ireland's premier access controlled solutions provider. Formed in Dublin in 1984, Electro Automation - now a global company, has since provided an enviable combination of quality equipment supported by exceptional technical after-sales and maintenance service. We specialise in ITS Equipment, Automatic Doors, Automatic Gates, Car Parking Equipment, CCTV, Integrated Security Systems and Access...

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Electro Automation

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