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Top IT Companies in Belfast (124)

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.

Nasstar
Cloud • Information Technology
3 Offices
923 Employees
2 Benefits Hiring Now

At Nasstar, we specialise in transformative technology. Our integrated suite of managed services delivers everything from cloud optimisation and application modernisation to networking, security and self-serve tools. With a consultative approach at our core, we modernise and manage technology to help our clients succeed in today's competitive business world. Through strategic consultation, to implementation and management, we provide the vision and...

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Nasstar
3DEO (3deo.com)
Information Technology • Big Data Analytics
Belfast
18 Employees

We unlock the power of your data with rapid and customisable solutions, to inform and empower your strategic decisions. We are the experts in combining 3D visualisation, earth observation and big data analytics. At 3DEO, we know it is time-consuming and costly for your organisation to respond to critical situations with the right solution. Our cost-effective and customisable solutions provide...

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3DEO (3deo.com)
Everbridge
Information Technology • Software • Consulting
28 Offices
1,437 Employees
34 Benefits Hiring Now

Keeping People Safe and Businesses Running. Faster. Everbridge, Inc. (NASDAQ: EVBG) is a global software company that provides enterprise software applications that automate and accelerate organizations’ operational response to critical events in order to Keep People Safe and Businesses Running™. During public safety threats such as active shooter situations, terrorist attacks or severe weather conditions, as well as critical business events...

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Everbridge

Everbridge's Top Stability & Growth Strengths

Strong Market Position & Advantage: Everbridge is positioned as a category leader in critical event management and mass notification, supported by independent analyst recognition and a sizable installed base in government and public safety. National-scale public warning deployments across multiple countries further reinforce perceived leadership in high-stakes, large-scale use cases.

Investor Backing & Capital Strength: The take-private acquisition by Thoma Bravo at a multi-billion-dollar valuation signals continued investor conviction in the business and its market category. Private-equity ownership also implies access to capital and operational support to fund product investment and go-to-market execution.

Innovation-Driven Growth: Ongoing platform updates (Everbridge 360 and High Velocity CEM) and patent activity around AI-enabled crisis response indicate sustained product innovation. Expanded integrations and managed-services motions suggest efforts to translate roadmap velocity into broader adoption.

Zensar Technologies
Information Technology
31 Offices
10,000 Employees
16 Benefits Hiring Now

Zensar is a leading experience, engineering, and technology solutions company. We conceptualize, build, and manage digital products for Forbes Global 2000 clients across the hi-tech engineering, banking and financial services, insurance, manufacturing and consumer services verticals. With proven excellence across five core areas, including experience services, advanced engineering services, data engineering and analytics, foundation services, and application services, our solutions...

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Zensar Technologies

Zensar Technologies's Top Stability & Growth Strengths

Profitability: Margins and cash are described as healthy, with recent disclosures citing solid EBITDA and PAT alongside a sizable net cash balance. These signals point to operational discipline and provide flexibility to execute on growth and large‑deal ramps.

Future-Ready Strategy: The company is actively advancing an AI‑native agenda, including broad workforce certifications and a modular AI platform, and reported multiple AI‑led wins. These moves, along with investments like a new European delivery center, indicate preparation for next‑wave demand.

Strong Market Position & Advantage: Independent assessments highlight leadership in select niches (e.g., insurance and BFSI specialists) and momentum as a Star Performer in adjacent subsegments such as payments. This specialist positioning suggests competitive advantage where domain depth and platform expertise matter.

JOOR
eCommerce • Fashion • Information Technology • Retail
8 Offices
251 Employees
33 Benefits
JOOR is smooth, smart wholesale technology for brands and retailers.

JOOR is the world’s premiere, wholesale management platform for fashion, beauty and home, connecting 13,300+ brands and 380,000+ retailers across 150 countries every day. Backed by Macquarie Group, Battery Ventures, Canaan Partners & ITOCHU, JOOR is a Series D start-up that provides the world's most recognized brands and retailers with a digital wholesale management platform that transforms the way these...

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JOOR
Totalmobile
Information Technology • Mobile
Belfast
370 Employees

Totalmobile is a field service management organisation dedicated to delivering technology that makes work and the lives of mobile workers better. With a comprehensive range of field service capabilities, we provide a fully integrated platform that empowers our customers to simplify processes, achieve operational excellence and experience an exceptional return on investment. With over 1,000 customers and 500,000 workers using our...

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Totalmobile
Tray.ai
Artificial Intelligence • Cloud • Information Technology • Software • Automation
3 Offices
171 Employees
15 Benefits

Tray.ai offers a composable AI integration and automation platform that transforms AI into standout business performance. The Tray Universal Automation Cloud is an AI-ready platform that eliminates the need for disparate tools, enabling seamless integration and automation of complex business processes. As enterprises strive for competitive advantage, our platform helps IT teams deploy AI effectively, connecting systems, automating processes, and integrating...

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Tray.ai
Kyndryl
Cloud • Information Technology • Consulting
16 Offices
46,070 Employees
30 Benefits

We have the world’s best talent that design, run, and manage the most advanced and reliable technology infrastructure each day. Together, we think holistically about the health of these vital technology ecosystems. We are a focused, independent company that builds on our foundation of excellence by creating systems in new ways. Bringing in the right partners, investing in our business, and...

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Kyndryl

Kyndryl's Top Stability & Growth Strengths

Profitability: Results indicate a swing to pretax profitability with strong year-over-year improvements in EBITDA and guidance pointing to continued earnings and free‑cash‑flow growth.

Strategic Partnerships: Alliances with major hyperscalers are scaling rapidly, with partner‑tied revenue more than doubling and management signaling momentum toward stated targets.

Strong Market Position & Advantage: Recognition as a Leader by major analyst firms in data center outsourcing, digital workplace, managed cloud operations, and mainframe services, combined with global scale, supports a strong position in mission‑critical infrastructure.

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

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.

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
Syndeo.cx
Information Technology • Software
Belfast
17 Employees

Syndeo means 'to connect'. We’re on a mission to make connecting with your customers using AI as natural and simple as saying ‘hello.’ Our Conversational AI Platform for the Customer Journey makes it easy for businesses to engage with consumers through AI-powered messaging and advanced chat technology. Designed for marketing, sales, and service, Syndeo empowers businesses to drive growth and...

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Syndeo.cx
GTT
Information Technology • Security • Design
33 Offices
3,031 Employees
29 Benefits Hiring Now

GTT is a managed network and security services provider to global organizations. We design and deliver solutions that leverage advanced cloud, networking and security technologies. We complement our solutions with a suite of professional services and exceptional support teams in local markets around the world. We serve thousands of national and multinational companies with a portfolio that includes SD-WAN, security,...

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GTT

GTT's Top Stability & Growth Strengths

Strong Revenue Growth: Consolidated revenues and EBITDA at Gaztransport & Technigaz increased markedly in 2023–2024 with further growth guided for 2025. A sizable multi‑year order book and recent LNG carrier awards provide strong visibility.

Strong Market Position & Advantage: GTT Communications operates a Tier‑1 global IP backbone across continents and is recognized as a Leader in managed network services by ISG and industry programs. A broad enterprise customer base and continued awards reinforce standing in its specialized domains.

Future-Ready Strategy: Both organizations are investing in forward‑looking capabilities, including hydrogen and alternative fuels (GTT S.A.) and SASE/SD‑WAN platforms plus 400G/800G backbone upgrades (GTT Communications). These initiatives position them to address evolving demand and regulatory drivers.

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

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.

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.

Verizon
Information Technology • Internet of Things • Other • Cybersecurity • Infrastructure as a Service (IaaS)
41 Offices
50 Benefits

Verizon is one of the world’s leading providers of technology and communications services, transforming the way we connect across the globe. We're a diverse network of people driven by our shared ambition to move the world forward - collectively building the network America relies on most. Here, we have the ability to learn and grow at the speed of technology,...

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Verizon

Verizon's Top Stability & Growth Strengths

Strong Market Position & Advantage: Verizon is positioned as a U.S. wireless leader by scale and enterprise reach, with repeated references to leadership by subscribers and differentiated enterprise/private 5G capabilities. Network reliability is also framed as a key advantage that supports premium positioning amid competition.

Market Expansion: The fiber footprint expands materially through the Frontier Communications acquisition, increasing broadband reach and strengthening the mobility-and-home convergence strategy. Fixed wireless access and broadband subscriber additions are described as ongoing growth vectors supporting a broader footprint.

Healthy Cash Flow: Cash generation is emphasized through guidance and commentary pointing to strong free cash flow that can fund spectrum, fiber, and 5G investments. Improved guidance and continued investment capacity are presented as resilience enablers even as competitive pressure rises.

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
CGI
Information Technology
65 Offices
91,500 Employees
42 Benefits
We are one of the largest IT and business consulting firms in the world with over 90,000 members across 400 offices.

Serving clients since 1976, we help governments and iconic brands solve business challenges with technology solutions in the areas of digital transformation, advanced analytics, intelligent automation, cloud and IT modernization and sustainability.

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CGI

CGI's Top Stability & Growth Strengths

Strong Revenue Growth: Disclosures indicate FY2025 revenue of C$15.91B grew 8.4% year over year (4.6% in constant currency), with Q4‑FY2025 up 9.7%. This represents a clear acceleration versus FY2024’s modest growth baseline.

Market Expansion: Reported bookings of C$17.57B (110% book‑to‑bill) and a year‑end backlog of C$31.45B (about 2x annual revenue) signal expanding demand and visibility. Ongoing acquisitions, including Online Business Systems, broaden capabilities and North American reach.

Investor Backing & Capital Strength: Management increased the dividend by 13% and maintained strong operating cash flow, supporting continued M&A and shareholder returns. These actions indicate confidence in cash generation and balance‑sheet capacity.

Big Motive
Information Technology • Software • Design
Belfast
26 Employees

Big Motive is a design and innovation studio made up of a diverse team of designers, researchers and technologists. Using data analysis and a range qualitative research approaches, Big Motive helps its clients form a deeper understanding of their customers – to create disruptive digital products and service experiences that inspire growth. Past and current clients include: Allstate Insurance, BBC,...

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Big Motive
Hitachi
Fintech • Information Technology • Logistics
28 Offices
33,676 Employees
27 Benefits

Since its founding in 1910, Hitachi has responded to the expectations of society and its customers through technology and innovation. Our mission is to “Contribute to society through the development of superior, original technology and products.” Over the past 100+ years this commitment has led us to work towards creating a more sustainable society through our “Social Innovation Business”. We...

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Hitachi

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