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Top Tech Companies in Belfast (534)

Harness
Artificial Intelligence • Cloud • Software
8 Offices
900 Employees
25 Benefits Hiring Now
Harness is the AI-native software delivery platform company.

Harness is a leader in AI-native software delivery, dedicated to empowering developers and engineering teams worldwide. We revolutionize how software is built, tested, deployed, and optimized by driving efficiency, reliability, and speed throughout the software development lifecycle. At Harness, we envision a world where developers focus on innovation, free from repetitive tasks, supported by tools that streamline every step. Our platform...

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Harness

Harness's Top Stability & Growth Strengths

Strong Market Position & Advantage: Analyst reports in 2025 place Harness as a Leader in Gartner’s Magic Quadrant and Forrester’s Wave for DevOps Platforms, signaling top-tier standing among end-to-end platforms. Coverage also highlights expansion beyond CD into feature flags, security/test orchestration, cloud cost, and IDP.

Strong Revenue Growth: Public statements note crossing $100M ARR in 2023/2024 and being on track to exceed $250M ARR in 2025, indicating robust momentum. Reported year-over-year growth into that period is characterized as strong and accelerating.

Investor Backing & Capital Strength: Funding events include a $240M Series E at a $5.5B valuation in December 2025 and a $150M credit facility in 2024, providing material capital for expansion. The valuation step-up and new capital are cited as signals of investor confidence.

Celerion
Pharmaceutical
9 Offices
1,029 Employees
28 Benefits Hiring Now

Celerion, a leader in early clinical research, delivers Applied Translational Medicine. Celerion applies our expertise and experience to translating information gained in research discoveries, to knowledge of drug action and effect in humans to support early drug development decisions and the clinical pharmacology labeling of new medicines. With over 50 years of experience and 600 global clinic beds (including 24 in-hospital),...

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Celerion
Nuada
Greentech
2 Offices
59 Employees
Hiring Now

Nuada is a vertically integrated pure-play carbon capture company that is poised to decarbonise heavy industries through its next generation point-source capture technology. We have combined advanced solid adsorbents (Metal Organic Frameworks or MOFs) with proven vacuum swing technology to vacuum CO2 out of industrial emissions through a “heatless” and solvent-free process. The use of pressure instead of heat represents...

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Nuada
Lucas Love Healthcare Ltd
Healthtech • Professional Services
Belfast
56 Employees
Hiring Now

Lucas Love Healthcare is a Northern Ireland nursing and domiciliary care agency that provides permanent, temporary, and contract recruitment of healthcare professionals. It supplies staff to care homes, hospitals, supported-living facilities, hospices, homecare providers, charities, and other health and social care settings. The company recruits nurses, care assistants, support workers, managers, chefs, kitchen assistants, domestic assistants, and administrators, with 24-hour...

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Lucas Love Healthcare Ltd
Diageo
Manufacturing
26 Offices
32,334 Employees
13 Benefits Hiring Now

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.

Data Intellect
3 Offices
178 Employees
1 Benefits Hiring Now

Data Intellect build complete-system solutions for an array of industry applications and we’re always open to new challenges. Be it Fintech, Healthcare, Renewables or Telematics, to name a few, we love finding ingenious ways to help clients cultivate business ambitions, scale-up market offering and realize customer and investor expectations. We provide solutions to complex data problems in demanding environments for...

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Data Intellect
Signifyd
Fintech • Machine Learning • Payments • Software • Financial Services
8 Offices
450 Employees
30 Benefits Hiring Now
Signifyd is the world’s largest provider of guaranteed fraud protection.

Signifyd provides an end-to-end Commerce Protection Platform that leverages its Commerce Network to maximize conversion, automate customer experience and eliminate fraud and consumer abuse for retailers. Signifyd counts among its customers a number of companies on the Fortune 1000 and Digital Commerce 360 Top 500 lists. Signifyd is headquartered in San Jose, CA., with locations in Denver, New York, Mexico...

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Signifyd

Signifyd's Top Stability & Growth Strengths

Strong Market Position & Advantage: Industry recognition from sources such as G2, Frost & Sullivan, and Digital Commerce 360 repeatedly places the company among the leaders in e-commerce fraud prevention and commerce protection. Adoption by major retailers, including Fortune 1000 and Top 500 companies, reinforces its established position.

Market Expansion: Recent funding and stated initiatives supported growth into Europe and Latin America, alongside maintaining operations across multiple regions. New integrations with major commerce platforms and moves into additional payment markets indicate continued geographic and channel expansion.

Product Line Growth: The offering has expanded beyond checkout fraud protection to include areas like returns and abuse, exemplified by the launch of Intelligent Returns. Ongoing enhancements to AI-driven decisioning and predictive tools broaden coverage across the customer journey.

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.

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Yell Limited

Yell Limited's Top Stability & Growth Strengths

Product Line Growth: Solutions revenue expanded sharply and now represents a substantial share of the business. Higher-value digital packages are gaining traction, with average revenue per customer rising and most new sales coming from this segment.

Cost & Operational Efficiency: Margins and EBITDA were maintained or modestly improved despite top-line contraction through strict overhead reductions and targeted capex cuts. Leaner execution is helping to stabilize profitability during the transition.

Healthy Cash Flow: Operating cash generation improved while revenue declined. Stronger cash conversion is supported by cost discipline and a mix shift toward higher-margin offerings.

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...

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Codec
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PA Consulting
Consulting
21 Offices
5,289 Employees
8 Benefits Hiring Now

We believe in the power of ingenuity to build a positive human future. As strategies, technologies, and innovation collide, we create opportunity from complexity. Our diverse teams of experts combine innovative thinking and breakthrough technologies to progress further, faster. Our clients adapt and transform, and together we achieve enduring results. We are over 4,000 strategists, innovators, designers, consultants, digital...

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PA Consulting
LanciaConsult
Marketing Tech • Consulting
4 Offices
87 Employees
Hiring Now

We are LanciaConsult, a fast growing business, technology and marketing consultancy serving clients around the world from our offices in Europe and Asia. We set up LanciaConsult in Singapore in 2012 as we were frustrated with the consultancy sector shifting from advisor to supplier. We felt that the pursuit of high revenue projects or large scale outsourcing meant that the solutions...

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LanciaConsult
Linamar Corporation
Automotive • Greentech
9 Offices
5,907 Employees
9 Benefits Hiring Now

Linamar Corporation (TSX:LNR) is an advanced manufacturing company where the intersection of leading-edge technology and deep manufacturing expertise is creating solutions that power vehicles, motion, work and lives for the future. The Company is made up of two operating segments – the Industrial segment and the Mobility segment, both global leaders in manufacturing solutions and world-class developers of highly engineered...

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Linamar Corporation
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...

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Version 1
System C Healthcare
Edtech • Healthtech • Information Technology • Software
9 Offices
917 Employees
Hiring Now

System C Healthcare is a British health and social care technology company founded in 1983. It develops and deploys IT products and services for the NHS, social service authorities and social care providers. Through its Liquidlogic subsidiary, the company supplies social care and education management solutions that facilitate collaboration across health and care services. Its mission is to deliver technology...

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System C Healthcare
Intapp
Software
12 Offices
600 Employees
35 Benefits Hiring Now

Intapp powers connected firms. Trusted by 1,600 of the world’s top private capital, investment banking, legal, accounting, and consulting firms, Intapp offers end-to-end, cloud-based connected firm management software built for the unique needs of partner-led firms. Intapp helps enhance collaboration, unleash collective knowledge, transform decision-making, and fuel success. Our products and services span the entire relationship lifecycle — from strategy...

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Intapp

Intapp's Top Stability & Growth Strengths

Strong Market Position & Advantage: Evidence indicates Intapp is broadly viewed as a category leader within its target verticals, supported by deep penetration across top law, accounting, private capital, and investment banking firms. DealCloud is widely deployed for purpose‑built deal and relationship management and frequently cited by large firms.

Strong Revenue Growth: Recent filings report year‑over‑year increases in SaaS revenue and cloud ARR, indicating expanding adoption and wallet share among existing clients. Quarterly updates and guidance point to continued momentum into fiscal 2026.

Customer Loyalty & Retention: Cloud net revenue retention remains elevated, signaling strong expansion within the installed base. Reported results and public client wins suggest steady cross‑sell and upsell across modules in core verticals.

Proofpoint
Security • Cybersecurity
31 Offices
3,780 Employees
31 Benefits Hiring Now

We provide the most effective cybersecurity and compliance solutions to protect people on every channel including email, the web, the cloud, and social media.

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Proofpoint

Proofpoint's Top Stability & Growth Strengths

Strong Revenue Growth: Disclosures cite surpassing $2 billion in ARR in 2024 and reaching $2.45 billion by the end of 2025 with continued double-digit momentum. New customer additions and strong adoption of data security and collaboration offerings are described as contributing factors.

Strong Market Position & Advantage: Multiple analyst evaluations in 2024–2025 consistently name the company a Leader in core categories, and Gartner-referenced data cites No. 1 market share in Secure Email Gateway and Cloud Enterprise DLP. A large enterprise footprint, including a significant portion of the Fortune 100, further underscores competitive strength.

Market Expansion: Acquisitions such as Hornetsecurity and Acuvity are described as expanding reach into MSP/SMB channels, Europe, and AI security. New product introductions and a revamped partner program are credited with accelerating adoption across email, collaboration, and data protection.

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 –...

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TRG Screen
Northstone (NI) Limited
Industrial • Manufacturing
Belfast
1,200 Employees
Hiring Now

Northstone (NI) Limited is a Northern Ireland-based construction and building materials group headquartered in Belfast. Its operating divisions include Farrans Construction, focused on building and civil engineering, and Northstone Materials, which supplies the construction industry with aggregates, asphalt, readymix concrete, roof tiles and related products. The group also undertakes building projects, road construction and other civil engineering work for customers.

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Northstone (NI) Limited
Stora
Cloud • Software
Belfast
14 Employees
Hiring Now

Stora is an all-in-one self storage platform designed to maximise your sales, reduce your costs, and save you time. It gives you an expertly designed customizable website with a conversion-optimised rental and payment flow. Invoicing and billing are completely automated, making you money while you sleep. Stora takes care of customer checkin for you, and integrates with all major smart...

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Stora
Evelyn Partners
Fintech • Payments • Financial Services
26 Offices
2,934 Employees
15 Benefits Hiring Now

Life is full of decisions that shape our future, but to make great decisions we need certainty and good advice. At Evelyn Partners (formerly Tilney Smith & Williamson), we have been giving good advice and helping people and businesses flourish for almost 200 years. Our mission is ‘to place the power of good advice into more hands’. We’re committed to...

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Evelyn Partners

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