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Top Tech Companies in Belfast (504)

Diaceutics PLC
Pharmaceutical • Manufacturing
4 Offices
170 Employees
Hiring Now

At Diaceutics we believe that every patient should have access to the right treatment at the right time. We provide the world’s leading pharmaceutical companies with an end-to-end solution for the launch of precision medicine diagnostics enabled by DXRX – The Diagnostic Network®. DXRX is the world’s first diagnostic commercialization platform for precision medicine, integrating multiple pipelines of real-world diagnostic...

Diaceutics PLC
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
Siemens
Artificial Intelligence • Internet of Things • Security • Cybersecurity
81 Offices
293,000 Employees
41 Benefits

Siemens is a technology company focused on industry, infrastructure, mobility, and healthcare. Creating technologies for more resource-efficient factories and resilient supply chains to smarter buildings and grids, to cleaner, comfortable transportation and advanced healthcare, the company empowers customers to transform the industries that form the backbone of economies, transforming the everyday for billions of people. In fiscal 2020, which ended on...

Siemens

Siemens's Top Stability & Growth Strengths

Strong Market Position & Advantage: Siemens holds leading positions across industrial automation and software, smart infrastructure, mobility, and healthcare technology (via Siemens Healthineers), with multiple segments ranked first or second and significant contract wins expanding backlog. This breadth provides competitive advantage across diverse high-growth end markets.

Healthy Cash Flow: The company reports strong free cash flow at the Group level in FY2024 and subsequent quarters, supporting investment, M&A, and a new multi‑year share buyback program. Robust cash conversion across industrial businesses underpins financial flexibility.

Resilient & Sustainable Growth: Comparable revenue increased in FY2024 and continued to rise in FY2025 quarters, while orders and book‑to‑bill above 1, a record order backlog, and confirmed FY2025 guidance provide visibility. Growth is supported by electrification, data‑center demand, rail investments, and ongoing portfolio actions.

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.

Dassault Systemes
3D Printing • Software
31 Offices
24,501 Employees
30 Benefits

Dassault Systèmes, the 3DEXPERIENCE Company, is a catalyst for human progress. We provide business and people with collaborative virtual environments to imagine sustainable innovations. By creating 'virtual twin experiences’ of the real world with our 3DEXPERIENCE platform and applications, our customers push the boundaries of innovation, learning and production. Dassault Systèmes’ 20,000 employees are bringing value to more than 290,000...

Dassault Systemes
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
ResMed
Healthtech
21 Offices
5,300 Employees
24 Benefits

ResMed provides medical equipment for treating, diagnosing, and managing sleep-disordered breathing and other respiratory disorders.

ResMed

ResMed's Top Stability & Growth Strengths

Strong Market Position & Advantage: Industry and company materials indicate ResMed is the leading player in global sleep‑apnea devices and masks, supported by scale and a large connected ecosystem (AirView/myAir). Philips’ U.S. consent decree and extended remediation have provided a multi‑year window that reinforced ResMed’s relative momentum.

Strong Revenue Growth: Recent quarters show continued year‑over‑year revenue growth with margin expansion, driven by device demand and recurring masks/accessories. Management commentary and investor materials point to sustained momentum through FY2026 to date.

Diversified Revenue Streams: A large installed base of connected devices underpins recurring resupply revenue and remote monitoring workflows. Ownership of Brightree and MatrixCare adds out‑of‑hospital software that complements the core hardware franchise.

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
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...

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.

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NIE Networks
Energy • Renewable Energy
Belfast
732 Employees
6 Benefits

Northern Ireland Electricity Networks (NIE Networks) is the owner of the electricity transmission and distribution networks in Northern Ireland, transporting electricity to over 910,000 customers including homes, businesses and farms. In the next decade, renewable energy will transform our electricity network providing a sustainable and more prosperous future for us all. We'll be hiring hundreds of people over the next months...

NIE Networks
Honda Trading
2 Offices
257 Employees

Honda Trading Brasil is a retail company based out of Est Estrada Municipal Valencio Calegari, 777, Edif 6d, Sumare, Sp, Brazil.

Honda Trading
INVISTA
Chemical
13 Offices
3,922 Employees
30 Benefits

At INVISTA, we make the chemicals, polymers, fabrics and fibers that can handle life’s toughest demands. Delivering the many products and technologies we make takes a lot of hard work by some incredibly talented employees. And we're always looking for people to help us create new solutions for life’s biggest needs.

INVISTA
Thrive.App
HR Tech • Mobile • Software
Belfast
21 Employees

Thrive.App Ltd established in 2011, provides the technology and support to assist organisations in ‘powering’ up their internal communications and employee engagement. Our intuitive content management system enables anyone in your organisation to take charge of your company communications, creating and adding content to a single employee communications platform and distributing it to your teams’ mobile devices. Our clients range...

Thrive.App
Tide
Fintech • Software • Financial Services
11 Offices
1,558 Employees
19 Benefits Hiring Now

Tide is the leading provider of UK small business (SMEs) accounts and one of the fastest-growing fintechs in the UK. Tide is live in the UK and India with over 550,000 members in the UK and more than 150,000 in India. Tide is transforming the small business banking market. Our platform not only offers business accounts and related banking services,...

Tide
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.

Shell Energy Australia
Energy • Renewable Energy
6 Offices
545 Employees
3 Benefits

Shell Energy is Shell’s renewables and energy solutions business in Australia, helping its customers to decarbonise and reduce their environmental footprint. The company combines deep expertise, innovation and investment to lead the change, and energise tomorrow. Shell Energy delivers business energy solutions and innovation across a portfolio of electricity, gas, environmental products and energy productivity for commercial and industrial customers, while...

Shell Energy Australia

Shell Energy Australia's Top Stability & Growth Strengths

Strong Revenue Growth: Reported revenue rose from $5.5 billion in 2020 to $14.8 billion in 2024. Headcount also increased by 10% in the last year, supporting operating scale.

Strong Market Position & Advantage: Identified as the largest dedicated provider of business electricity and the second-largest provider to commercial and industrial customers by load. Consistent number-one ranking for large customer satisfaction over many years underscores strength in its core segment.

Market Expansion: The acquisition of Powershop added over 185,000 residential and small business customers, extending reach beyond C&I. Ongoing investments in large-scale batteries and a significant wind development stake indicate expanding scope across projects and regions.

Merrill Lynch
Financial Services
38 Offices
34,150 Employees
39 Benefits

Founded in 1914, Merrill is one of the largest wealth management businesses in the world. Merrill financial advisors combine financial knowledge and experience with a deep understanding of their clients’ needs to help their clients pursue the lives they want. With a deep commitment to placing their clients' interests first, Merrill financial advisors draw upon the investment insights of Merrill...

Merrill Lynch
Benefex
Software
5 Offices
537 Employees

Hello! We’re Benefex. We believe that everyone deserves an exceptional experience at work, every day. We build workplace technology that makes this happen. Our technology is called OneHub. It brings together employee benefits software, reward & recognition tech, wellbeing programmes and workplace communications, so your employees have a home for everything at work. No one comes to work to do a bad...

Benefex
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
Ernst & Young
Professional Services • Consulting
32 Offices
350,000 Employees
44 Benefits

EY exists to build a better working world, helping create long-term value for clients, people and society and build trust in the capital markets. Enabled by data and technology, diverse EY teams in over 150 countries provide trust through assurance and help clients grow, transform and operate. Working across assurance, consulting, law, strategy, tax and transactions, EY teams ask better questions to...

Ernst & Young

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