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Top IT Companies in Belfast (124)

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.

Aflac Northern Ireland
Information Technology • Software • Cybersecurity
Belfast
152 Employees

Turn your obsession for tech into an unbelievable career opportunity with a US Fortune 500* company – right here in Belfast. Aflac Northern Ireland is a Technology and Cybersecurity Innovation Centre, based in Belfast, Northern Ireland. *No. 131 actually, which we’re a wee bit proud of… Even though Aflac is the largest supplier of supplemental health insurance in the US and...

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Aflac Northern Ireland
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.

Options Technology
Information Technology • Financial Services
10 Offices
464 Employees
4 Benefits

Options are the No.1 provider of IT infrastructure to global Capital Markets firms, supporting their operations and ecosystems. With almost 30 years of experience, we understand the highly complex requirements of the Capital Markets sector and work relentlessly to improve our offering, ensuring we stay ahead of the curve and offer clients best-in-class service. Options provide high-performance managed trading infrastructure...

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Options Technology
FD Technologies
Information Technology
5 Offices
2,509 Employees

FD is a group of data-driven businesses that unlock the value of insight, hindsight and foresight to drive organisations forward. The Group comprises KX, the leading technology for real-time continuous intelligence; First Derivative, a provider of technology-led services in capital markets; and MRP, the only enterprise-class, predictive Accounts Based Marketing solution. FD operates from 15 offices across Europe, North America...

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FD Technologies
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
Sysco Software
Information Technology • Software
2 Offices
120 Employees

Sysco Software is a multi-award-winning, and certified Microsoft Dynamics 365 Business Applications Solution Partner employing more than 110 full-time Dynamics 365 consultants. Sysco Software are uniquely placed to deliver industry specific projects built on the Microsoft Dynamics 365 technology stack, the Power Platform hosted on a secure Microsoft Azure Cloud from offices in Dublin and Belfast. In business for more than 40...

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Sysco Software
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
OUTSOURCE
Information Technology • Cybersecurity
5 Offices
46 Employees

An award winning, locally owned, IT Managed Security Services Provider (MSSP) working with SME/Enterprise customers across the UK, Ireland and internationally. Outsource solutions and services, covering from 'the desktop to the data centre' are all underpinned by our "Security First" approach and focus on improving the security, performance and productivity of every company we partner with. We also offer a suite...

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OUTSOURCE
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Informa
Artificial Intelligence • Information Technology • Business Intelligence
26 Offices
3,741 Employees
13 Benefits

Informa is a leading international intelligence, events and scholarly research group. We're here to champion the specialist, connecting people with knowledge to help them learn more, know more and do more. We're a FTSE 100 company with 10,000 colleagues working in over 30 countries and a presence in all major regions, including North America, South America, Asia, Europe, the Middle East...

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Informa

Informa's Top Stability & Growth Strengths

Strong Revenue Growth: Revenue is expanding at a healthy pace, with record-level sales and steady underlying growth across recent periods. Momentum is led by the B2B Live Events division and management outlook indicates continued mid‑single‑digit gains.

Profitability: Earnings are increasing alongside revenue, with higher adjusted operating profit and sustained double‑digit EPS growth. Guidance points to further profit expansion.

Strong Market Position & Advantage: Scale in global B2B exhibitions is described as industry‑leading, with revenue larger than the next two competitors combined and a broad international portfolio. Recognition in sector rankings and a deep roster of specialist brands reinforce this position.

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
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.

Mzuri Group
Information Technology • Industrial • Manufacturing
Lisburn
5,000 Employees

Mzuri Group is a global luxury window coverings group established with the vision to provide an environment where companies can achieve their true potential. Founded by a leadership team with more than 40 years of success in the window coverings market, the spirit of the group is to assemble the best of the best. Sharing a vision, ideas, experience, resources...

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Mzuri Group
IFS
Information Technology • Software
45 Offices
6,788 Employees
28 Benefits

IFS develops and delivers enterprise software for companies around the world who manufacture and distribute goods, build and maintain assets, and manage service-focused operations. Within our single platform, our industry specific products are innately connected to a single data model and use embedded digital innovation so that our customers can be their best when it really matters to their customers...

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IFS

IFS's Top Stability & Growth Strengths

Strong Market Position & Advantage: Market leadership is demonstrated most strongly in Enterprise Asset Management and Field Service/Service Lifecycle, with repeated analyst recognition and cited market-share leadership over multiple years. The platform is positioned as a focused alternative for asset- and service-centric enterprises, with strength concentrated in asset-intensive industries.

Strong Revenue Growth: Growth is characterized as sustained across multiple periods, with recurring and cloud revenue described as increasing year over year alongside expanding revenue scale. Commercial momentum is further supported by mentions of larger enterprise wins, new customer additions, and increasing deal sizes.

Investor Backing & Capital Strength: Private-market transactions and a reported valuation step-up are presented as signals of investor confidence and capital support. Ownership dynamics and new institutional participation are described as enabling continued investment in growth initiatives.

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.

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
Ensono
Cloud • Information Technology
12 Offices
3,000 Employees
14 Benefits Hiring Now
Support mission critical workloads, modernize IT infrastructure and reduce total cost of ownership.

Ensono helps IT leaders be the catalyst for change by harnessing the power of hybrid IT to transform their businesses. Our broad services portfolio from mainframe to cloud, powered by an intelligent governance platform, is designed to help our clients operate for today and optimize for tomorrow. We are award-winning certified experts in AWS & Azure

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Ensono

Ensono's Top Stability & Growth Strengths

Strong Revenue Growth: Company disclosures indicate revenue expanded from about $224M at inception to roughly $1.1B and clients grew to 250+ by January 2026, reflecting sustained scale-up. Additional signals such as headcount increases and the launch of an AI & Innovation Division reinforce ongoing momentum.

Strong Market Position & Advantage: Multiple independent analyst assessments (ISG, Everest, IDC) place the company as a Leader in mainframe services and modernization, with Gartner listing it in a 2024 Market Guide for the niche. Credentials like the AWS Mainframe Modernization Competency and public-sector recognitions further underpin competitive strength in this segment.

Investor Backing & Capital Strength: Ownership by KKR since 2021 and a stated $250M, five‑year AI investment plan indicate access to capital supporting expansion and R&D. Capability-expanding acquisitions such as Amido and ExperSolve align with a funded growth strategy.

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.

Nutbourne
Information Technology
Belfast
28 Employees

As a managed services provider in London, Nutbourne was founded to support people and solve their problems, offering a service that can cover all of your business’ needs from one source. That’s why our team assist people and their systems, as well providing high level consultancy, that we monitor consistently and improve when needed. We take on your IT burden,...

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Nutbourne
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

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