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Top Tech Companies in Belfast (535)

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.

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
Artemis Technologies
Software • Transportation
2 Offices
182 Employees
Hiring Now

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
Pearson
Edtech
39 Offices
29,811 Employees
34 Benefits Hiring Now

We are the world’s learning company with more than 22,500 employees operating in 70 countries. We provide content, assessment and digital services to learners, educational institutions, employers, governments and other partners globally. We are committed to helping equip learners with the skills they need to enhance their employability prospects and to succeed in the changing world of work. We believe...

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Pearson
Exegy
Big Data • Fintech • Information Technology • Software • Analytics
7 Offices
130 Employees
20 Benefits Hiring Now

Exegy provides ultra-high performance, hardware-accelerated computing appliances that process market data for financial organizations. Exegy is the established leader in providing real-time market data solutions with an unparalleled combination of speed, capacity, features, and service. Today Exegy serves as a strategic partner to leading principal traders, agency brokers, exchanges, Alternative Trading System (ATS) and dark pool operators, market makers, hedge funds,...

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Exegy
Thompsons Solicitors
Professional Services
18 Offices
800 Employees
Hiring Now

Thompsons Solicitors is a prominent UK law firm established in 1921, specializing in personal injury, employment rights, and trade union law. With 18 offices across the UK, the firm exclusively represents injured or mistreated individuals and trade union members, never acting for employers or insurance companies. They are dedicated to social justice, campaigning for legal reforms, and securing compensation for...

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Thompsons Solicitors
Thales
Artificial Intelligence • Big Data • Information Technology • Security • Software
78 Offices
63,258 Employees
18 Benefits Hiring Now

Thales is a global high technology leader investing in digital and “deep tech” innovations – connectivity, big data, artificial intelligence, cybersecurity and quantum technology – to build a future we can all trust, which is vital to the development of our societies. The company provides solutions, services and products that help its customers – businesses, organisations and states – in...

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Thales

Thales's Top Stability & Growth Strengths

Strong Revenue Growth: Sales increased in 2025 versus 2024, with early 2026 also showing higher sales and management guiding to further organic growth in 2026.

Profitability: Adjusted EBIT rose and margins improved in 2025, indicating strengthening operating performance alongside growth.

Resilient & Sustainable Growth: Record order intake and an order book above €53 billion provide multi‑year visibility, and a book‑to‑bill above 1 with reaffirmed 2026 targets supports continued expansion.

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
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
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Kainos
Information Technology
10 Offices
2,999 Employees
31 Benefits Hiring Now

At Kainos we use technology to solve real problems for our customers, overcome big challenges for businesses, and make people’s lives easier. We build strong relationships with our customers and go beyond to change the way they work today and the impact they have tomorrow. Our two specialist business areas, Digital Services and the Workday Practice, work globally for clients across healthcare,...

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Kainos

Kainos's Top Stability & Growth Strengths

Strong Revenue Growth: Recent results show double-digit increases in revenue, bookings, and contracted backlog, with Workday Products ARR also rising. Company updates indicate momentum continuing into the following year, supported by a larger order book.

Product Line Growth: Workday Products expanded, with ARR increasing and the Smart suite adopted by a large customer base alongside new offerings such as Pay Transparency resold by Workday in Europe. Unique credentials across Services, Software, and Extend underscore a growing product footprint in the Workday ecosystem.

Strong Market Position & Advantage: Independent assessments place the firm as a Leader across all three Workday quadrants in Europe and a trusted prime on major UK public‑sector programs. A sizable installed base and repeat large government awards reinforce an advantaged regional position.

AAB
Professional Services • Consulting • Financial Services

AAB delivers Audit, Accounting, Tax, Payroll, HR, Consulting, and Advisory Solutions globally from its offices in the United Kingdom and Ireland.

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AAB
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
Cooper Parry
Professional Services • Consulting • Financial Services
12 Offices
1,200 Employees
Hiring Now

Cooper Parry is a UK accountancy and business-advisory firm serving entrepreneurial businesses, founders, dynamic companies, and high-net-worth individuals across the UK and overseas. Its services span audit, tax, innovation, technology and high-growth support, outsourced finance, corporate finance, deals, wealth management, sustainability advisory, legal, and digital solutions. The firm combines big-firm capability with boutique energy and people-first delivery for the mid-market.

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Cooper Parry
NatWest Group
Fintech • Payments • Financial Services
35 Offices
40,000 Employees
18 Benefits Hiring Now

We’re a business that understands when our customers and people succeed, our communities succeed, and our economy thrives. As part of our purpose, we’re looking at how we can drive change for our communities in enterprise, learning and climate. As one of the leading supporters of UK business, we’re prioritising enterprise as a force of change. We’re focusing on the people...

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NatWest Group

NatWest Group's Top Stability & Growth Strengths

Profitability: Results highlight robust returns and earnings, indicating strong franchise economics versus many peers. Recent updates point to continued delivery into 2026.

Strong Market Position & Advantage: Independent awards and industry context point to leadership in UK corporate banking and a top‑tier position in core lending such as mortgages. The group sits in the leading cohort of UK incumbents with distinctive strength in SMEs and corporates.

Diversified Revenue Streams: Strategic moves into wealth management and selected portfolio acquisitions are positioned to expand fee income and balance interest‑driven revenues. Management frames these actions as accretive to growth and returns.

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
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
Pinsent Masons
Artificial Intelligence • Legal Tech
24 Offices
4,323 Employees
1 Benefits Hiring Now

Pinsent Masons is a multinational law firm with a reputation for delivering high-quality legal advice rooted in its deep understanding of the sectors and geographies in which our clients operate. Our expertise is recognised globally. In recent years we have achieved more tier 1 rankings in The Legal 500 UK guide than any other firm, and been counted among the...

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Pinsent Masons
AECOM
Consulting
36 Offices
51,000 Employees
39 Benefits Hiring Now
We are the trusted global infrastructure leader.

AECOM is the global infrastructure leader, committed to delivering a better world. As a trusted professional services firm powered by deep technical abilities, we solve our clients’ complex challenges in water, environment, energy, transportation and buildings. Our teams partner with public- and private-sector clients to create innovative, sustainable and resilient solutions throughout the project lifecycle – from advisory, planning, design...

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AECOM

AECOM's Top Stability & Growth Strengths

Profitability: Feedback suggests profitability is strengthening with record margins and double‑digit EPS growth alongside guidance raises as of Q2 FY2026. Independent coverage also characterized the print as “record‑breaking performance,” reinforcing earnings momentum.

Resilient & Sustainable Growth: Feedback suggests underlying growth is durable, evidenced by a record and rising backlog with management raising full‑year guidance. Calendar and award‑timing headwinds are already embedded in outlook, indicating resilience despite near‑term noise.

Strong Market Position & Advantage: Feedback suggests AECOM’s consistent top industry rankings and global scale reinforce a competitive edge that supports demand capture. Recognition as the world’s top design firm in multiple sectors underpins its ability to win and retain large programs.

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.

Information Commissioner's Office (ICO)
5 Offices
Hiring Now

The Information Commissioner's Office (ICO) is the independent regulator of information rights. In a data-driven world, it provides advice, guidance, and support to organisations enabling compliance with their obligations, as well as protecting individuals and their personal data.

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Information Commissioner's Office (ICO)

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