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Top Tech Companies in Belfast (535)

Lantum
eCommerce • Healthtech • Information Technology • Software
2 Offices
110 Employees
2 Benefits

Lantum is a workforce management platform that makes it easier for healthcare providers to mobilise their workforce, and for clinicians to work more flexibly. Our Connected Scheduling platform gives you a staff bank, rota tool and a clinician network all in one place to improve fill rates, cut admin time, and reduce costs. We started life as Network Locum in...

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Lantum
AntennaWare
Hardware • Internet of Things • Wearables
Belfast
7 Employees

AntennaWare is an innovative antenna technology company that is revolutionising wireless communications in wearable IoT, audio, healthcare and sport applications/devices.

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AntennaWare
ModSquad
Other
3 Offices
813 Employees
32 Benefits Hiring Now

ModSquad’s ModSourcing is outsourcing MODernized. Our movement is to lighten the load of digital engagement for global brands with smart processes, innovative tools and a customized, fun and flexible workforce.

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ModSquad
Aztech IT Solutions
Information Technology • Cybersecurity
2 Offices
61 Employees
4 Benefits

Aztech IT Solutions is trusted by more than one hundred growing businesses across the UK to deliver professional, proactive IT support services. Aztech provides the IT support and consultancy services that enable organisations to operate more efficiently, safe in the knowledge that their IT systems are optimised and proactively managed. Your IT partner should work as hard to improve your...

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Aztech IT Solutions
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.

Ricoh Global Services
Information Technology
2 Offices
139 Employees

Digital transformation is crucial for a business but complex to deliver. It’s so complicated that no single company can be expected to provide everything required to achieve success; but one company can ensure everything gets delivered. That’s why Ricoh works with best in class delivery partners to support us through the process of transforming your business into a digital business. As well...

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Ricoh Global Services

Ricoh Global Services's Top Stability & Growth Strengths

Strong Market Position & Advantage: The company is repeatedly positioned in “Leader” cohorts for managed print and cloud managed print/document services, and it holds #1 share claims in defined high-speed/continuous-feed inkjet production segments. These signals point to durable competitiveness in print-centric services and select production-print niches, supported by global delivery scale and security capabilities.

Profitability: Operating profit is described as having more than doubled year over year in the nine months ended December 31, 2025, alongside guidance for sharply higher Digital Services operating profit in fiscal 2025. This indicates improving earnings power as the mix shifts toward higher-margin, recurring services and restructuring benefits flow through.

Future-Ready Strategy: The company is concentrating on Office/Workplace Services and Process Automation to build a larger recurring revenue base and target more stable margins, including portfolio pruning such as exiting U.S. Managed IT Services. This reflects an intentional shift away from breadth-for-breadth’s-sake toward areas where it believes it can sustain differentiation and scale.

Artemis Technologies
Software • Transportation
2 Offices
182 Employees

Artemis Technologies is a world leading high-performance maritime design and applied technologies company with a mission to decarbonise the maritime industry. We develop 100% electric foiling vessels that produce zero emissions in operation and are home to the world’s most advanced marine simulator.

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Artemis Technologies
The Guardian
Digital Media • News + Entertainment
2 Offices
2,500 Employees
1 Benefits

Guardian News & Media (GNM) publishes theguardian.com, one of the world’s leading English-language newspaper websites. It also has a presence in the US and Australia as Guardian US and Guardian Australia. Traffic from outside of the UK now represents around two-thirds of the Guardian’s total digital audience. In the UK, GNM publishes the Guardian newspaper six days a week, first...

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The Guardian
Aviva
Insurance • Financial Services
21 Offices
10,000 Employees
11 Benefits

Aviva is nothing without our people. Living up to our purpose to be with you today for a better tomorrow applies to those we work with just as much as it does to our customers. We want Aviva to be a place where people can be themselves, and we want our workforce to reflect the customers and communities we serve....

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Aviva
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Radius
Software • PropTech
29 Offices
2 Employees
3 Benefits
Radius is modernizing midterm rental housing. Join Radius if you want to define this new rental category.

Radius is building infrastructure for a part of the housing market the travel stack largely ignores: midterm stays for traveling professionals, relocations, and insurance-displacement housing.

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Radius

Radius's Top Stability & Growth Strengths

Market Expansion: Independent coverage indicates 28+ day stays have grown rapidly since 2019 and attracted more operators and platforms. This expanding demand creates favorable tailwinds for a 30+ day, furnished‑stay marketplace.

Future-Ready Strategy: The company positions a real‑time, on‑platform marketplace purpose‑built for 30+ day stays with workflows for insurance, corporate, and healthcare placements. This focused go‑to‑market aligns with how mid‑term housing is sourced, extended, and billed.

Innovation-Driven Growth: End‑to‑end, on‑platform booking with live availability/rates and B2B workflow features differentiates it from listing‑only directories. Active product education and a maintained Help Center suggest continuing investment in marketplace capabilities.

ScanSource
7 Offices
1,329 Employees
26 Benefits

ScanSource is a leading hybrid distributor connecting devices to the cloud and accelerating growth for partners across hardware, software, connectivity and cloud. Our partners include value-added resellers (VARs), sales partners or agents, independent sales organizations (ISOs), and independent software vendors (ISVs). We are proud of the relationships we build with our partners, and we strengthen these bonds through transparency that...

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ScanSource

ScanSource's Top Stability & Growth Strengths

Diversified Revenue Streams: Two operating segments and a growing recurring-revenue mix (about one-third of gross profit) indicate diversification beyond commodity hardware. Intelisys & Advisory aggregates UCaaS/CCaaS, connectivity, security and cloud marketplaces, broadening services exposure.

Healthy Cash Flow: Free cash flow strength is evidenced by roughly $124M TTM by Q3 FY2026 and a raised FY2026 outlook to at least $90M, alongside share repurchases. These signals point to solid cash conversion even amid uneven top-line trends.

Profitability: Gross margin expanded to 13%+ with gross profit rising in recent quarters, and FY2025 showed improved non-GAAP profitability despite lower revenue. The shift toward higher-margin, recurring services appears to support earnings durability.

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.

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
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.

Alert Logic
Security • Software • Cybersecurity
5 Offices
620 Employees

Alert Logic is the industry’s first SaaS-enabled managed detection and response (MDR) provider, delivering unrivaled security value. Since no level of investment prevents or blocks 100% of attacks, you need to continuously identify and address breaches or gaps before they cause real damage. With limited budget and expertise, this level of security can seem out of reach. Our purpose-built technology...

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Alert Logic
Ozaroo
Retail
Antrim
4 Employees

For 20 years we've been obsessed with saving people money and world-class service. It all started when teenage brothers Chris and Conor Martin launched the online retail business from their bedroom, dreaming up the quirky name with the belief that actions speak louder than words. Thanks to relentless hard-work and dedication to excellence, we have received numerous awards and recognition, including...

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Ozaroo
eduthing
Edtech • Hardware • Information Technology • Software
2 Offices
75 Employees
1 Benefits

Working solely within the education sector, we have gained a unique insight into schools. We understand that schools come in all shapes and sizes and that our support needs to be completely flexible to accommodate the diverse range within the UK. We are a forward thinking, proactive and flexible company, that prides itself on providing the highest level of customer satisfaction....

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eduthing
Interface Inc.
19 Offices
2,743 Employees
36 Benefits

Interface is a world-leading modular flooring company with a fully integrated collection of carpet tiles and resilient flooring. Our modular system helps customers create interior spaces while positively impacting the people who use them and our planet. We’re here to realize a more beautiful world, with people and environment in harmony. Our mission, Climate Take Back™, invites industry to join us...

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Interface Inc.
CME Group
Financial Services
7 Offices
3,291 Employees
33 Benefits Hiring Now

As the world's leading derivatives marketplace, CME Group (www.cmegroup.com) is where the world comes to manage risk. CME Group exchanges offer the widest range of global benchmark products across all major asset classes, including futures and options based on interest rates, equity indexes, foreign exchange, energy, agricultural commodities, metals, weather and real estate. CME Group brings buyers and sellers together...

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CME Group

CME Group's Top Stability & Growth Strengths

Strong Market Position & Advantage: Scale and liquidity across core benchmarks (e.g., SOFR, U.S. Treasuries, E-mini S&P 500, WTI, COMEX gold) and record 2025 ADV signal a durable lead. Independent trackers (FIA) and integrated infrastructure (Globex, CME Clearing, BrokerTec, EBS) support concentrated liquidity at scale.

Strong Revenue Growth: Record financial performance in 2025 and fresh Q1 2026 records in revenue and ADV indicate accelerating top-line momentum. Continued elevated monthly volumes into April 2026 maintain growth above prior-year levels.

Diversified Revenue Streams: Rising market-data and information services revenue (record in 2025) complements transaction fees. Broad-based participation across asset classes and adjacent platforms (BrokerTec, EBS) helps diversify contribution.

OneAdvanced
Software
10 Offices
2,698 Employees
15 Benefits

Founded in 2008 OneAdvanced has grown into of the UK’s largest providers of business software and services serving global customers with an annual turnover of £330M+. We manage 1.5 million 111 calls per month, support over 2 million FE learners across the UK, handle over 10 million wills, and so much more. Powering the world of work. We power the world...

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OneAdvanced

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