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Top Tech Companies in Belfast (535)

Copper.co
Blockchain • Cryptocurrency
3 Offices
266 Employees
31 Benefits

Copper is a digital asset technology company dedicated to helping institutional investors safely acquire, trade and store cryptoassets. Built and led by Dmitry Tokarev, a software and financial engineering specialist, the firm provides a comprehensive suite of custody, trading and settlement solutions that reduce counterparty risk and bring greater capital and operational efficiency to digital asset markets. At the heart...

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Copper.co
Sixteen South
News + Entertainment
Belfast
23 Employees

We make television for every child in every home in every country around the world. We're a group of three companies which creates, produces and distributes our work. We create shows without creative boundaries - whether that's 2D, 3D, live action or puppetry. We passionately believe in more.

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Sixteen South
Tamaki Control
Industrial • Automation
6 Offices
65 Employees

Tamaki Control is a specialist industrial automation engineering company that offers a range of services including automation consultancy, specification of function design and user requirements, software programming, SCADA and HMI operator interface, commissioning and tuning of plant systems, performance reporting, and operator training. Founded in Auckland, New Zealand in 1988, Tamaki Control has grown steadily and now has offices in North...

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Tamaki Control
Unosquare
Information Technology
6 Offices
884 Employees

Unosquare provides custom software development with agile software delivery professionals for Healthcare, Financial Services, and High Tech customers. We do this work from the USA, Latin America, and the United Kingdom. With over 2,500 successfully completed projects, nearly 600 full-time employees, and 100 active distributed teams, Unosquare has been one of the fastest growing private businesses in the USA with...

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Unosquare
Public Consulting Group
52 Offices
3,689 Employees
23 Benefits

Public Consulting Group, Inc. (PCG) is a leading public sector solutions implementation and operations improvement firm that partners with health, education, and human services agencies to improve lives. Founded in 1986 and headquartered in Boston, Massachusetts, PCG has over 2,500 professionals in more than 60 offices worldwide—all committed to delivering solutions that change lives for the better. The firm has...

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Public Consulting Group

Public Consulting Group's Top Stability & Growth Strengths

Strong Market Position & Advantage: PCG is depicted as a leader in K-12 special education platforms (EDPlan in 30+ states) and as the nation’s largest provider of school-based Medicaid services supporting 4,000+ districts. Recent statewide and district awards and the GSA schedule extension to 2030 reinforce incumbency and access to government buyers.

Market Expansion: New 2025 wins (e.g., Michigan DHHS behavioral health training center, Frederick County MD EDPlan) and statewide vehicles (e.g., Virginia Evoke deployment, renewed GSA MAS) indicate ongoing footprint expansion. PPL’s New York single-FI award and operational build-out further signal scale-up within PCG’s family of companies.

Product Line Growth: Platform traction spans EDPlan for education and Evoke for regulatory/licensing workflows with live deployments and statewide pathways. The Emerald Education asset acquisition adds STEM/CTE and math resources, broadening the education solutions portfolio.

Parexel
Pharmaceutical
68 Offices
20,524 Employees
36 Benefits

Parexel is among the world’s largest clinical research organizations (CROs), providing the full range of Phase I to IV clinical development services to help life-saving treatments reach patients faster. Leveraging the breadth of our clinical, regulatory and therapeutic expertise, our team of more than 21,000 global professionals collaborates with biopharmaceutical leaders, emerging innovators and sites to design and deliver clinical...

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Parexel

Parexel's Top Stability & Growth Strengths

Strong Market Position & Advantage: Feedback suggests Parexel is consistently viewed as a top-tier, full-service CRO, reinforced by repeated industry awards and strong site collaboration recognition. These signals indicate competitive strength in winning and delivering complex global programs.

Strategic Partnerships: Feedback suggests multi-year collaborations to embed advanced analytics and AI (e.g., Palantir and other AI initiatives) are intended to improve trial efficiency and differentiation. Such partnerships underscore continued investment in modernization and execution.

Market Expansion: Feedback suggests the company opened a new global headquarters in Raleigh and continues to reference a 20,000+ to 24,000+ global workforce, indicating operational scaling. Physical expansion and ongoing hiring activity support broader delivery capacity across regions.

Yelo
Hardware • Appliances
Carrickfergus
51 Employees

Yelo Limited are the world leaders in the manufacturing of laser diode burn-in and life testing equipment. We are a dynamic engineering company renowned for our bespoke and cutting edge technology, with a variety of customers ranging from large multinational corporations to smaller specialist companies, Yelo designs, manufactures and supports test solutions globally.

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Yelo
O2
Information Technology • Mobile
21 Offices
5,230 Employees
15 Benefits

O2 is the commercial brand of Telefónica UK Limited and is a leading digital communications company with the highest customer satisfaction for any mobile provider according to Ofcom. With over 23 million customers, O2 runs 2G, 3G, 4G and 5G networks across the UK, as well as operating O2 Wifi and owning half of Tesco Mobile. O2 has over 450...

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O2
pharosIQ
eCommerce • Marketing Tech • Sales • Software
7 Offices
1,021 Employees

pharosIQ, a global leader in "intent-to-purchase" lead generation, provides insights and demand for B2B sales and marketing success. Leveraging over 40 years of expertise, pharosIQ turns intelligence into impactful engagements for efficient global revenue growth. Powered by first-party data, it connects vendors with buyers, transforming strategies worldwide.

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pharosIQ
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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.

Hearst
Digital Media • News + Entertainment
27 Offices
3,010 Employees
25 Benefits Hiring Now

Hearst is a leading global, diversified media, information and services company with more than 360 businesses. Its major interests include ownership in cable television networks such as A&E, HISTORY, Lifetime and ESPN; global financial services leader Fitch Group; Hearst Health, a group of medical information and services businesses; transportation assets including CAMP Systems International, a major provider of software-as-a-service solutions...

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Hearst

Hearst's Top Stability & Growth Strengths

Strong Revenue Growth: Hearst is described as achieving record revenue in 2024 with a further increase in 2025, indicating continued top-line expansion. Growth is attributed primarily to strong performances in Fitch Group and Hearst Television, alongside the expanding B2B information-services mix.

Diversified Revenue Streams: The portfolio spans B2B information services (financial, health, transportation software/data) as well as magazines, newspapers, television, and cable network stakes, creating multiple earnings engines. The shift toward higher-margin, recurring information services is portrayed as helping offset cyclicality and headwinds in ad-dependent consumer media.

Strong Market Position & Advantage: Fitch Group is positioned as one of the global top credit rating agencies, while Hearst Health, transportation software assets, and several media properties are characterized as leaders or top-tier operators in their niches. This combination of category-leading B2B franchises and scale media assets is presented as a competitive moat that supports resilience.

Tata Technologies
Information Technology • Consulting
13 Offices
15,050 Employees
10 Benefits

We're a global product engineering and digital services company focused on fulfilling our mission of helping the world drive, fly, build, and farm by enabling our customers to realize better products and deliver better experiences. We’re the strategic engineering partner businesses turn to when they aspire to be better. Manufacturing companies rely on us to enable them to conceptualize, develop...

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Tata Technologies
Catagen
Greentech • Consulting
2 Offices
54 Employees

CATAGEN’s mission is to clean and decarbonise the air. We are a pioneering green emissions testing facility based in Belfast providing unrivalled metrics to optimise catalyst development and reduce harmful tailpipe emissions. Our expertise in the mobility sector and global emissions standards has led us to develop ClimaHtech technologies including Green Hydrogen. Our Core Business provides GREEN emissions testing to global...

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Catagen
Diageo
Manufacturing
26 Offices
32,334 Employees
13 Benefits

Diageo's official LinkedIn account. We're a global leader in premium drinks, across spirits and beer, a business built on the principles and foundations laid by the giants of the industry. With over 200 brands sold in 180 countries, our portfolio has remarkable breadth. From centuries-old names to exciting new entrants, and global giants to local legends, we're building the very best...

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Diageo

Diageo's Top Stability & Growth Strengths

Strong Market Position & Advantage: Diageo is consistently depicted as the global leader in international spirits, with category leadership in Scotch and tequila and Johnnie Walker’s category-topping status anchoring that edge. Scale and global reach provide durable share and pricing power even through cycles.

Strong Brand Reputation: Iconic, globally recognized brands such as Johnnie Walker, Guinness, Smirnoff, and Don Julio, alongside independent brand‑valuation mentions, support resilient brand equity. Company materials emphasize a brand‑led strategy that sustains pricing and share through continued investment.

Healthy Cash Flow: Management targeted roughly $3 billion of free cash flow for FY26 despite softer top‑line trends. An accelerated multi‑year cost‑savings program is intended to support cash generation and financial flexibility.

Emballator Lagan AB
Food • Chemical • Industrial • Manufacturing
2 Offices
131 Employees

Emballator Lagan AB develops and manufactures plastic packaging solutions, including pails, cans, and pots, for a wide range of industries such as paint, food, and chemicals. As part of the Emballator group, it provides high-quality packaging and material expertise to serve diverse markets including pharmaceutical, beauty, and industrial applications.

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Emballator Lagan AB
Not On The High Street
2 Offices
210 Employees

We are Not On The High Street - The home of epic gifts and small business magic. We help customers celebrate all of life's big and small moments - from birthdays to bad hair days - with thousands of inspiring gift ideas. We're also a curated marketplace, meaning we're home to over 5000 of the UK's best small businesses. Everything...

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Not On The High Street
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
Arthur Cox
Legal Tech
5 Offices
886 Employees

Arthur Cox LLP is one of Ireland’s leading law firms. We are an “all-island” firm with offices in Dublin and Belfast. We also have offices in London, New York, and San Francisco. Our practice encompasses all aspects of corporate and business law. With 600 legal staff and a total headcount of nearly 900, we provide a comprehensive service to an international...

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Arthur Cox
Budibase
Information Technology • Software
Belfast
22 Employees

Build internal tools for your business in minutes

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Budibase
Xiaomi
Hardware • Internet of Things • Robotics
2 Offices
19,597 Employees
8 Benefits

Xiaomi Corporation was founded in April 2010 and listed on the Main Board of the Hong Kong Stock Exchange on July 9, 2018 (1810.HK). Xiaomi is a consumer electronics and smart manufacturing company with smartphones and smart hardware connected by an IoT platform at its core. Embracing our vision of “Make friends with users and be the coolest company...

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Xiaomi

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