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Top Tech Companies in Belfast (503)

Firstup
Information Technology • Other • Software
3 Offices
259 Employees
33 Benefits Hiring Now

Firstup is redefining the digital employee experience to put people first and lift companies up. We make communication solutions that build authentic engagement and create two-way conversation between employees and companies. Our powerful orchestration engine connects every worker, everywhere, on any device with personalized information that helps them do their best work. That’s why 40% of Fortune 100 companies like...

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Firstup
Material Evolution
Machine Learning • Database
2 Offices
21 Employees

Material Evolution produces MevoCem, a high-performance, ultra-low carbon cement replacement - with an 85% reduction in emissions compared to traditional cement. Our Mevo A1 Production Facility in Wrexham, Wales, has a capacity of 120,000 tonnes of MevoCem per year, making us the UK's largest producer of ultra-low carbon cement. Find out more: www.materialevolution.com

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Material Evolution
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
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.

Aviva Investors
Fintech • Software • Financial Services
5 Offices
1,340 Employees
3 Benefits

Welcome to Aviva Investors. The global asset manager that chooses integration. The future is full of questions. Only by working closely with our clients can we find the answers. That’s why we integrate our whole business around our clients – their goals, their values and the experience they have when they work with us. That’s why we start by listening closely...

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Aviva Investors
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
Paramount
Digital Media
20 Offices
40,347 Employees
46 Benefits

Paramount is a leading media and entertainment company that creates premium content and experiences for audiences worldwide. Driven by iconic studios, networks and streaming services, Paramount's portfolio of consumer brands includes CBS, Showtime Networks, Paramount Pictures, Nickelodeon, MTV, Comedy Central, BET, Paramount+, Pluto TV and Simon & Schuster, among others. Paramount delivers the largest share of the U.S. television audience...

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Paramount

Paramount's Top Stability & Growth Strengths

Profitability: Direct-to-consumer performance is described as improving year over year, with streaming profitability metrics and adjusted OIBDA trending better and management emphasizing a path toward stronger margins. Engagement signals such as rising watch time per user and lower churn are positioned as supportive of healthier unit economics.

Strong Market Position & Advantage: Broadcast TV strength is highlighted through CBS’s consistent top positioning in U.S. broadcast viewing, reinforcing defensible reach in linear television. Pluto TV is described as one of the largest FAST platforms, supporting a meaningful position in free ad-supported streaming.

Future-Ready Strategy: Streaming is framed as the primary growth engine, with increased 2026 content investment and product/pricing moves intended to lift ARPU and support profitability improvements. The long-term NFL rights and planned sports additions are positioned as durable demand anchors that can reinforce the streaming transition.

Broadcom
Software • Semiconductor • Manufacturing
41 Offices
38,985 Employees
39 Benefits

Broadcom Inc. (NASDAQ: AVGO) is a global technology leader that designs, develops and supplies semiconductor and infrastructure software solutions.

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Broadcom

Broadcom's Top Stability & Growth Strengths

Strong Revenue Growth: Recent results and guidance indicate accelerating top-line momentum led by AI semiconductors and robust demand for AI networking. Management communicated a sizable near-term step-up in consolidated revenue.

Profitability: Earnings quality appears solid, with high adjusted margins and strong free cash flow generation in the latest quarter. Capital return actions, including a new share repurchase authorization and ongoing dividends, reinforce confidence in cash generation.

Strategic Partnerships: Long-duration hyperscaler agreements in custom AI silicon (e.g., Google TPUs) and disclosed programs with leading AI developers underpin multi-year demand. These relationships position Broadcom as a key supplier beyond GPU-centric compute.

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)
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CyberSource
eCommerce
12 Offices
656 Employees
29 Benefits

At Cybersource, we create flexible, creative commerce solutions for everyday life—experiences that delight your customers and spur growth globally.

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CyberSource
Oxford Instruments
9 Offices
2,000 Employees
38 Benefits

Oxford Instruments is a leading provider of high technology tools and systems for research and industry. We design and manufacture equipment that can fabricate, analyse and manipulate matter at the atomic and molecular level. Our purpose is to enable a greener, healthier, more connected advanced society. Oxford Instruments has discrete business groups operating in three sectors. This means we can focus...

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Oxford Instruments
Millgate
Hardware • Information Technology • Software
2 Offices
139 Employees

At Millgate, our guiding principle is deceptively simple: we deliver tech products, services and solutions that actually work for your business needs. In nearly 30 years since our inception, Millgate has developed a reputation as a trusted adviser to our clients, able to understand their requirements and provide the very best IT & Tech solutions to meet and exceed their individual...

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Millgate
Hearts & Science
AdTech • Marketing Tech
8 Offices
1,509 Employees
8 Benefits

Hearts & Science, an Omnicom Media Group agency, transforms data signals into meaningful connections between brands and consumers that drive exponential growth. Purpose-built for the world of personalized digital marketing and powered by the Omni marketing orchestration system, Hearts & Science draws on the vast expertise and resources of the OMG platform to deliver media solutions that enable brands to create...

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Hearts & Science
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
pladis Global
Industrial • Manufacturing
15 Offices
3,038 Employees
1 Benefits

pladis is one of the world’s fastest growing snacking companies and home to much loved brands including McVitie’s, GODIVA and Ülker. pladis also owns regional brands Jacob’s, Go Ahead, Flipz, Turtles, BN, Verkade and many more products across sweet and savoury biscuits, wafer, cake, and chocolate. pladis also owns regional brands such as Jacob’s, Go Ahead, Flipz, BN, Verkade and...

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pladis Global
Vivo (Telefônica Brasil)
Digital Media • Mobile
28 Offices
41,079 Employees
3 Benefits

Vivo (Telefônica Brasil) is part of the Telefónica Group and with more than 94 million customers, of which 75 million mobile and 19 million fixed, we are the largest telecommunications company in Brazil, with nationwide presence and a complete, convergent portfolio of products, combining fixed, mobile and digital services. Our purpose is “Digitalize to Bring Closer”, helping to build a digital...

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Vivo (Telefônica Brasil)
Stibo Systems
Software • Big Data Analytics
13 Offices
826 Employees
31 Benefits

Stibo Systems, the master data management company, is the trusted enabler of data transparency. Our solutions are the driving force behind forward-thinking companies around the world that have unlocked the strategic value of their master data. We empower them to improve the customer experience, drive innovation and growth and create an essential foundation for digital transformation. This gives them the...

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Stibo Systems
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
Circana
Marketing Tech • Analytics
6 Offices
4,423 Employees
16 Benefits Hiring Now

Circana is the leading advisor on the complexity of consumer behavior. Through unparalleled technology, advanced analytics, cross-industry data and deep expertise, we provide clarity that helps almost 7,000 of the world’s leading brands and retailers take action and unlock business growth. We understand more about the complete consumer, the complete store, and the complete wallet so our clients can go...

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Circana

Circana's Top Stability & Growth Strengths

Strong Market Position & Advantage: Evidence indicates Circana is widely regarded as a leader in retail and consumer-behavior measurement, often evaluated alongside NIQ and cited in public-company materials. Its broad category coverage from the IRI+NPD combination and entrenched use (“per Circana”) point to defensible competitive positioning.

Investor Backing & Capital Strength: Investor actions such as Vestar Capital Partners’ $1.2B continuation vehicle signal committed capital and confidence in Circana’s growth trajectory post‑IRI–NPD merger. Recent acquisitions (NCSolutions and Nielsen’s MMM business) further imply access to funding to scale capabilities.

Product Line Growth: Circana has expanded media and effectiveness offerings via acquiring NCSolutions and Nielsen’s MMM and launching products like Liquid Mix and Liquid Data Engage. Coverage additions (e.g., convenience‑store channel, expanded MULO+) and new partnerships point to a widening solution set.

Enovis
Healthtech
3 Offices
1,217 Employees
16 Benefits

We are a medical technology company focused on developing clinically differentiated solutions that generate measurably better patient outcomes and transform workflows. Powered by a culture of continuous improvement, extraordinary talent and innovation, we ‘create better together’ by partnering with healthcare professionals. Our extensive range of products, services and integrated technologies fuel active lifestyles.

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Enovis

Enovis's Top Stability & Growth Strengths

Strong Revenue Growth: Full-year 2025 revenue reached about $2.2–$2.248B, described as up year over year with organic growth also cited, and 2026 guidance indicates continued expansion. Multi-year net sales progression from 2023 to 2025 is presented as consistently upward, with Reconstructive repeatedly cited as the primary growth engine.

Innovation-Driven Growth: The company is characterized as innovation-driven, highlighting investments such as the ARVIS Gen 2 augmented reality system and a steady cadence of new product launches across reconstructive and prevention/recovery offerings. Digital enablement and technology differentiation are framed as key enablers of share gains, especially in faster-growing niches like extremities/shoulder.

Strong Market Position & Advantage: Category leadership is asserted in bracing and rehab through legacy DJO brands (DonJoy, Aircast, Chattanooga), and the LimaCorporate acquisition is described as elevating the company into a top-tier position in extremities. The portfolio is positioned as strong in select segments even if not dominant across the entire orthopedic implant market.

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