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Top IT Companies in Belfast (124)

Black Box
Information Technology
35 Offices
5,000 Employees
26 Benefits Hiring Now

Black Box is a global digital infrastructure integrator delivering network and system integration services and solutions, support services, and technology products to businesses in the United States, Europe, India, Asia Pacific, the Middle East, and Latin America and has around 4,000 professionals globally. Black Box has strong service offerings in network integration, digital connectivity infrastructure, data center build-out, modern workplace, and...

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Black Box

Black Box's Top Stability & Growth Strengths

Market Expansion: The company is positioned as having a broad global operating footprint, with operations described across dozens of countries and multiple continents. Growth plans also include geographic expansion through a planned acquisition in Brazil and continued build-out in regions like APAC.

Strategic Partnerships: The company is described as holding strong ecosystem relationships, including a Cisco Gold Partner designation and recognition from vendors such as Juniper and Extreme Networks. These partnerships indicate depth in integrating major networking platforms and can support delivery credibility on large programs.

Resilient & Sustainable Growth: The company is described as having executed a turnaround from earlier losses to profitability, alongside improving margins and a growing order book/backlog. Management’s multi-year growth targets and focus on higher-value mix areas like data centers and AI-led infrastructure further support an upward trajectory.

Cerco
Information Technology
2 Offices
144 Employees

Cerco employees provide a flexible resource throughout the UK and Ireland for employer partners, from smaller SMEs to large global corporations. Both permanent and temporary opportunities are available, and you could be hired from one day short term jobs to long term, open ended placements. At Cerco we look for customer-focused people with a ‘can do’ attitude plus hardware and...

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Cerco
Datactics
Information Technology • Software
Belfast
67 Employees

At Datactics we're passionate about helping our clients get their data right. We specialise in user-friendly data quality and matching software to help business teams across financial services and governments to tap into the riches of their data assets. We've won multiple awards for the software's ease of use and the capabilities and diversity of our delivery specialists who help...

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Datactics
EXL
Information Technology • Database • Consulting
35 Offices
30,246 Employees
20 Benefits Hiring Now

Choosing a digital partner is about more than capabilities — it’s about collaboration and character. Unrealistic overhauls and off-the-shelf products ignore what matters most — your unique needs, culture, goals, and your legacy data and technology environments. At EXL, our collaboration is built on ongoing listening and learning to adapt our methodologies. We’re your business evolution partner—tailoring solutions that make the most...

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EXL

EXL's Top Stability & Growth Strengths

Strong Revenue Growth: Revenue is expanding at a double-digit pace across 2025 and the first half of 2026, and the company raised its 2026 outlook to mid-teens growth. Feedback suggests momentum is reinforced by consistent quarterly acceleration and new client additions.

Profitability: Earnings are outpacing revenue, with strong adjusted EPS gains and solid high‑teens adjusted operating margins. Feedback suggests disciplined execution is helping sustain margin strength alongside growth.

Innovation-Driven Growth: Data‑ and AI‑led services are the principal engine, rising to a majority of revenue by early 2026 and supported by continued investment and the planned iMerit acquisition. Industry evaluations citing leadership in data/AI and insurance-focused operations suggest differentiated capability.

Bell Integration
Information Technology
8 Offices
1,000 Employees

For over 25 years, Bell’s market-leading technology consultation and managed services have enabled organisations to transform their IT capabilities and elevate their business productivity and cost efficiency. Head-quartered in the UK and employing over 1000 people across the globe. We are trusted by many global Fin-techs, Telco’s, and government and public sector organisations, our customers depend on us to ensure their IT...

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Bell Integration
LTIMindtree
Information Technology • Consulting
10 Offices
103,226 Employees
25 Benefits

LTIMindtree is a global technology consulting and digital solutions company that enables enterprises across industries to reimagine business models, accelerate innovation, and maximize growth by harnessing digital technologies. As a digital transformation partner to more than 700 clients, LTIMindtree brings extensive domain and technology expertise to help drive superior competitive differentiation, customer experiences, and business outcomes in a converging world....

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LTIMindtree

LTIMindtree's Top Stability & Growth Strengths

Strong Market Position & Advantage: Analyst positioning places LTIMindtree as a Leader in targeted service lines such as AI application development, payments IT, and parts of the SAP and Snowflake ecosystems, supporting credibility in those niches. Scale within India (post-merger) and a global footprint across many countries further reinforce enterprise delivery credentials.

Strong Revenue Growth: Revenue is described as rising on both a full-year and recent quarterly basis, with multiple consecutive quarters of sequential growth and year-over-year improvement. Strong order inflow is highlighted as underpinning forward revenue visibility.

Cost & Operational Efficiency: Operating margin improvement is noted in recent quarters, alongside comments about AI-led productivity gains that add revenue without proportional headcount growth. Easing attrition and stable workforce levels are also positioned as supportive of delivery stability.

Lionsgate
Information Technology • News + Entertainment
4 Offices
1,895 Employees
34 Benefits

The first major new studio in decades, Lionsgate (NYSE: LGF.A, LGF.B) is a global content leader whose films, television series, digital products and linear and over-the-top platforms reach next generation audiences around the world. The Company’s content initiatives are backed by a nearly 17,000-title film and television library and delivered through a global sales and distribution infrastructure. The Lionsgate brand...

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Lionsgate
Vonage
Information Technology • Productivity • Software
16 Offices
2,500 Employees
30 Benefits

We’re making communications more flexible, intelligent, and personal, to help enterprises the world over stay ahead. We provide unified communications, contact centers and programmable communications APIs, built on the world's most flexible cloud communications platform.

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Vonage

Vonage's Top Stability & Growth Strengths

Strong Market Position & Advantage: The company is repeatedly recognized as a Leader in CPaaS by major analyst firms, including multiple Gartner Magic Quadrants and top rankings in critical capabilities. Its presence across CPaaS, UCaaS, and CCaaS research cohorts underscores breadth relative to peers.

Future-Ready Strategy: Integration with Ericsson emphasizes exposing 4G/5G network APIs and launching AI-enabled capabilities, aligning the roadmap to emerging, network-aware applications. This positioning supports differentiation beyond traditional communications APIs.

Strategic Partnerships: Collaborations highlighted with leading carriers and platforms, together with Ericsson’s backing, expand ecosystem reach for network APIs and CPaaS use cases. Such alliances can accelerate adoption and reinforce platform relevance across regions.

Sinch
Big Data • Cloud • Information Technology • Marketing Tech • Mobile
4 Offices
1,520 Employees
27 Benefits

Sinch brings businesses and people closer with tools enabling personal engagement. Our leading cloud communications platform lets businesses reach every mobile phone on the planet, in seconds or less, through mobile messaging, voice, and video. Our global headquarters are in Stockholm, Sweden, and we have a local presence in more than 30 countries - probably somewhere near you!

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Sinch
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Accelerite
Big Data • eCommerce • Information Technology • Internet of Things • Software • Analytics
Belfast
24 Employees

Accelerite is a Silicon Valley based company delivering secure business-critical infrastructure software for Global 1000 enterprises. Accelerite's product suite includes hybrid cloud infrastructure, endpoint security, risk-based authentication, big data analytics, and the Internet of Things. Accelerite is a wholly owned business of Persistent Systems (BSE & NSE: PERSISTENT), a global leader in software product development and technology services. Learn more...

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Accelerite
BT Group
Information Technology • Software
36 Offices
80,295 Employees
43 Benefits

We’re one of the world’s leading communications services companies. At BT Group, the solutions we sell are integral to modern life. Our purpose is as simple as it is ambitious: we connect for good. There are no limits to what people can do when they connect. And as technology changes our world, connections are becoming even more important to everyday...

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BT Group

BT Group's Top Stability & Growth Strengths

Strong Market Position & Advantage: BT is positioned as a UK infrastructure and network-quality leader through Openreach’s large full‑fibre footprint and EE’s leading 5G experience indicators, reinforcing durability during the fibre/5G transition.

Market Expansion: Openreach continues to expand full‑fibre coverage rapidly, reporting 20m+ premises passed by late 2025/early 2026 and targeting further growth into 2026, alongside expanding 5G/5G+ reach and a rising 5G customer base.

Future-Ready Strategy: BT’s strategy centers on completing the fibre build, increasing take‑up, modernising the product base, and driving a medium‑term cash‑flow inflection, aiming to translate network leadership into stronger financial resilience over time.

VIAVI Solutions
Information Technology
11 Offices
4,570 Employees
30 Benefits

VIAVI Solutions (NASDAQ: VIAV) is a global leader in both network and service enablement and optical security performance products and solutions. Our technologies contribute to the success of a wide range of customers – from the world’s largest mobile operators and governmental entities to enterprise network and application providers to contractors laying the fiber and building the towers that keep...

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VIAVI Solutions

VIAVI Solutions's Top Stability & Growth Strengths

Strong Revenue Growth: Recent quarters show substantial year-over-year and sequential revenue increases, with guidance indicating continued momentum. Non-GAAP operating margins and earnings improved alongside strength from data center and aerospace/defense demand.

Strong Market Position & Advantage: The company is described as a global leader in network test, monitoring, assurance, and optical technologies, with flagship platforms viewed as industry standards and presence alongside top peers. Strategic acquisitions and partnerships broaden capabilities in high-speed Ethernet, security testing, and Open RAN, reinforcing competitive positioning.

Diversified Revenue Streams: Growth is supported by multiple end-markets including data centers, aerospace/defense, and optical security products, reducing reliance on traditional service providers. Contributions from recently acquired product lines further expand exposure across these segments.

Tata Communications
Information Technology
28 Offices
16,277 Employees
9 Benefits

Tata Communications is a digital ecosystem enabler that powers today’s fast-growing digital economy. We enable the digital transformation of enterprises globally, including 300 of the Fortune 500. We carry around 30% of the world’s internet routes and connects businesses to 60% of the world’s cloud giants. We have been a part of the rich heritage of the internet in...

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Tata Communications
Systems Limited MEA
Artificial Intelligence • Cloud • Information Technology • Automation
2 Offices
420 Employees

Systems MEA is an MEA-based subsidiary of Pakistan's largest IT company, Systems Limited, which houses a skilled workforce of 7000+ employees globally. Our experience spans to 4 decades with a presence across 5 continents. Our satisfied industry leading clientele of 400+ public and private institutions is a testament to our unparalleled digital solutions. We aspire to enable businesses to build...

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Systems Limited MEA
Anuvu
Digital Media • Information Technology
13 Offices
926 Employees
24 Benefits

Our global team of experts provides demanding mobility markets with technology-driven solutions that keep their passengers entertained and connected to the things they love. From high-speed broadband internet to movies, television and games, our reliable, scalable, and affordable approach is designed to meet the ever-changing technology needs of our clients' passengers and guests.

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Anuvu
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.

Endeavour Information Solutions
Information Technology • Software
2 Offices
29 Employees

Based in the heart of Belfast and Edinburgh, Endeavour Information Solutions provides technology solutions to organisations across the UK and Ireland. We specialise in Microsoft technologies and solutions such as SharePoint, Office 365, Microsoft Dynamics , Kentico CMS as well as bespoke software development solutions. Endeavour is a member of the Microsoft Partner Network and holds two gold competencies in...

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Endeavour Information Solutions
Reply
Information Technology • Consulting
35 Offices
4,171 Employees
11 Benefits

Reply [EXM, STAR: REY] specialises in the design and implementation of solutions based on new communication channels and digital media. As a network of highly specialised companies, Reply defines and develops business models enabled by the new models of AI, big data, cloud computing, digital media and the internet of things. Reply delivers consulting, system integration and digital services to...

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Reply
SITA
Information Technology • Consulting
21 Offices
7,798 Employees
33 Benefits

Travel fuels the world today. Connecting us all. Building a better quality of life, and propelling our global economy. Since the start, we’ve made it our lifework to build solutions that help every airline and every airport across the world. We made check-in easier. We let pilots talk to ground control. We delivered better ways to track down lost...

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SITA

SITA's Top Stability & Growth Strengths

Strong Market Position & Advantage: Global reach is positioned as a core strength, including a communications backbone with worldwide coverage and very high availability, plus entrenched platforms like WorldTracer in baggage operations. Segment leadership is described as clearest in air‑transport communications infrastructure, baggage irregularity management, and common‑use/passenger processing where deployments are widespread.

Strong Revenue Growth: Revenue is described as rising for two consecutive years, reaching record results through 2023 and 2024 with growth across major business lines and geographies. Momentum is framed as broad-based rather than limited to a single segment.

Innovation-Driven Growth: Investment in R&D and a stated focus on product innovation are highlighted as contributors to recent momentum. Acquisitions such as Materna IPS and ASISTIM are portrayed as capability additions that expand the end‑to‑end passenger and operations portfolio.

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

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