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Top IT Companies in Belfast (120)

Rapid7
Artificial Intelligence • Cloud • Information Technology • Sales • Security • Software • Cybersecurity
15 Offices
2,400 Employees
99 Benefits Hiring Now
Take Command of your Career

At Rapid7, our vision is to create a secure digital world for our customers, our industry, and our communities. We do this by harnessing our collective expertise and passion to challenge what’s possible and drive extraordinary impact. We’re building a dynamic and collaborative workplace where new ideas are welcome. Protecting 11,000+ customers against bad actors and threats means we’re continuing...

Rapid7

Rapid7's Top Stability & Growth Strengths

Profitability: Profitability is improving, with Q1 2026 showing positive GAAP net income and about $24M in non‑GAAP operating income, and full‑year 2026 guidance calling for continued non‑GAAP profitability. Margin focus and sustained earnings point to better unit economics even as growth slows.

Healthy Cash Flow: Cash generation is strong, with roughly $33M in free cash flow in Q1 2026 and guidance of $125–$135M for FY2026. These levels indicate solid cash conversion despite muted top‑line trends.

Future-Ready Strategy: Portfolio moves such as AI‑ and MDR‑centric offerings and the Kenzo Security acquisition are aimed at strengthening the platform and cross‑sell potential. Execution on AI/MDR and cross‑sell into a base of over 11,500 customers is positioned as a lever to re‑accelerate growth.

iManage
Artificial Intelligence • Cloud • Information Technology • Legal Tech • Productivity • Software
8 Offices
1,100 Employees
104 Benefits Hiring Now
Whoever you are, whatever you do, however you work. Make it mean something at iManage.

iManage is dedicated to Making Knowledge Work. Over one million professionals across 65+ countries rely on our intelligent, cloud-enabled, secure knowledge work platform to uncover & activate the knowledge that exists inside their business content and communications. We are continuously innovating to solve the most complex professional challenges & enable better business outcomes. Our work is not always easy but it...

iManage

iManage's Top Stability & Growth Strengths

Strong Revenue Growth: Annual recurring revenue is described as growing strongly year over year, with additional momentum noted specifically for cloud ARR into the following period. The trajectory is supported by a rising subscription mix as more of the base moves to iManage Cloud.

Strong Market Position & Advantage: Presence across thousands of organizations, including many top global law firms and major enterprises, signals durable competitive footing. Near‑perfect cloud reliability and deep adoption in core verticals reinforce scale and credibility.

Innovation-Driven Growth: Successive AI releases (e.g., Ask iManage, Insight+, AI Enrichment, Mailbox Assistant) and a focus on governed knowledge for AI are cited as demand catalysts. Platform openness initiatives such as MCP to connect governed content with external AI tools expand upsell and ecosystem opportunities.

RigUp
Information Technology • Professional Services • Software • Energy
3 Offices
260 Employees
60 Benefits
RigUp crafts software and services that streamline field operations - from sourcing all the way to payments.

We offer a source to pay solution designed for the energy sector. It streamlines the entire process from finding suppliers to issuing payments. Our goal is to strengthen alignment between field workers and corporate offices.

RigUp

RigUp's Top Stability & Growth Strengths

Product Line Growth: The July 10, 2024 launch of an energy‑specific Vendor Management/source‑to‑pay platform with case studies citing faster onboarding and cost savings expands the offering beyond the original labor marketplace. Ongoing additions like Bid Management and enterprise workflow support into 2025–2026 indicate continued broadening of the software stack.

Strategic Partnerships: The June 10, 2025 exclusive U.S. license for Shell’s U‑lateral drilling technology positions RigUp to distribute process innovation across operators and opens a differentiated commercialization path. This alliance signals deeper operator access and potential revenue beyond staffing services.

Market Expansion: The September 17, 2024 acquisition of Calgary‑based Codeco‑Vanoco Engineering broadened capabilities and extended presence in Canada’s energy market. Early‑2026 materials showing Western Midstream using RigUp for vendor contracts and invoicing point to enterprise uptake among operators.

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.

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...

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.

Kainos
Information Technology
10 Offices
2,999 Employees
31 Benefits Hiring Now

At Kainos we use technology to solve real problems for our customers, overcome big challenges for businesses, and make people’s lives easier. We build strong relationships with our customers and go beyond to change the way they work today and the impact they have tomorrow. Our two specialist business areas, Digital Services and the Workday Practice, work globally for clients across healthcare,...

Kainos

Kainos's Top Stability & Growth Strengths

Strong Revenue Growth: Recent results show double-digit increases in revenue, bookings, and contracted backlog, with Workday Products ARR also rising. Company updates indicate momentum continuing into the following year, supported by a larger order book.

Product Line Growth: Workday Products expanded, with ARR increasing and the Smart suite adopted by a large customer base alongside new offerings such as Pay Transparency resold by Workday in Europe. Unique credentials across Services, Software, and Extend underscore a growing product footprint in the Workday ecosystem.

Strong Market Position & Advantage: Independent assessments place the firm as a Leader across all three Workday quadrants in Europe and a trusted prime on major UK public‑sector programs. A sizable installed base and repeat large government awards reinforce an advantaged regional position.

TRG Screen
Information Technology • Software
11 Offices
267 Employees
32 Benefits Hiring Now

TRG Screen is the leading provider of software used to monitor and manage subscription spend & usage across the entire enterprise. TRG Screen is uniquely positioned to offer the full spectrum of enterprise subscription management capabilities across: ► Spend management – Optimize Spend (inbound licensing) ► Usage management – ResearchMonitor (online resources, applications & terminals) & XMon (data feeds) ► Enquiry & workflow –...

TRG Screen
Version 1
Information Technology • Consulting
12 Offices
3,000 Employees
12 Benefits Hiring Now

Version 1 proves that IT can make a real difference to our customers'​ businesses. We are trusted by global brands to deliver IT services and solutions which drive customer success. Our 3000+ strong team works closely with our technology partners to provide independent advice that helps our customers navigate the rapidly changing world of IT. Our greatest strength is balance...

Version 1
Exegy
Big Data • Fintech • Information Technology • Software • Analytics
7 Offices
130 Employees
20 Benefits Hiring Now

Exegy provides ultra-high performance, hardware-accelerated computing appliances that process market data for financial organizations. Exegy is the established leader in providing real-time market data solutions with an unparalleled combination of speed, capacity, features, and service. Today Exegy serves as a strategic partner to leading principal traders, agency brokers, exchanges, Alternative Trading System (ATS) and dark pool operators, market makers, hedge funds,...

Exegy
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Codec
Artificial Intelligence • Cloud • Information Technology • Software
4 Offices
223 Employees
6 Benefits Hiring Now

Established in 1985 and headquartered in Ireland, Codec is a high-growth, leading technology company with offices in Dublin, London, Belfast, and Malta. With a team of over 300 dedicated professionals, we are committed to delivering innovative solutions based on the Microsoft low-code platform. As current Microsoft country partner of the year (for the 4th time), Codec specialises in providing business...

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

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...

Options Technology
ScreenCloud
Artificial Intelligence • Cloud • Hardware • Information Technology • Software
5 Offices
130 Employees
107 Benefits
Creating connected companies with screens that communicate!

ScreenCloud is a full-stack digital signage solution that provides hardware and software to run screens at scale, improving deployment, management and security. Get mission critical communication infront of the right people, from HQ to deskless and frontline teams.

ScreenCloud
GTT
Information Technology • Security • Design
33 Offices
3,031 Employees
29 Benefits

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,...

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.

Grouper Technology
Information Technology • Software • Cybersecurity
3 Offices
9 Employees

Grouper Technology (Grouper®) is partner to some of Europe’s leading organisations in their software modernisation and digital transformation journey. We help organisations create innovative management systems, tools and technologies that empower their quality assurance needs and in particularly, relating to corporate governance, risk, and compliance. Grouper offers two primary pillars of "Specialised Application Solutions” and “IT Advisory Services”. Our advisory...

Grouper Technology
SciLeads
Information Technology • Marketing Tech • Sales • Consulting
2 Offices
79 Employees

SciLeads is an innovative sales and marketing intelligence platform for scientific companies. We enable greater sales by providing companies with instant access to highly relevant prospect and market information.

SciLeads
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...

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.

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...

Aflac Northern Ireland
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...

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.

Clinisys
Information Technology • Software
16 Offices
1,597 Employees
4 Benefits

Clinisys is a global provider of informatics software and expertise to support diagnostic testing across healthcare, life sciences and public health. Millions of diagnostic results and data insights are generated every day using Clinisys’ platform and cloud-based solutions in over 3,000 laboratories across 34 countries. Headquartered in Tucson, Arizona, and Woking, England, Clinisys’ mission is to help make citizens and...

Clinisys
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...

Endeavour Information Solutions

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