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Top Tech Companies in Belfast (503)

SureSkills
Information Technology • Software
4 Offices
245 Employees

SureSkills is a leader in the design, development and delivery of a wide range of technical learning, knowledge, technical products and candidate placement services and solutions. We partner with global organisations to enable skills, knowledge and capabilities needed to drive real competitive advantage and business value. We can provide workforce solutions by giving companies access to the best talent on...

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SureSkills
Dun & Bradstreet
Artificial Intelligence • Big Data • Fintech • Machine Learning • Software • Generative AI • Big Data Analytics
32 Offices
6,317 Employees
38 Benefits
Leading global provider of business decisioning data and analytics, enabling companies to improve business performance.

Dun & Bradstreet, a leading global provider of business decisioning data and analytics, enables companies around the world to improve their business performance. Dun & Bradstreet’s Data Cloud fuels solutions and delivers insights that empower customers to accelerate revenue, lower cost, mitigate risk, and transform their businesses. Since 1841, companies of every size have relied on Dun & Bradstreet to...

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Dun & Bradstreet

Dun & Bradstreet's Top Stability & Growth Strengths

Strong Market Position & Advantage: Feedback suggests D&B is broadly viewed as a category leader in commercial business identity, risk/credit, and KYC data, anchored by the D‑U‑N‑S identifier and extensive global coverage. Independent analyst recognition and deep enterprise adoption indicate an entrenched role across core workflows.

Strategic Partnerships: Feedback suggests D‑U‑N‑S and D&B’s entity‑resolution are embedded in major data/AI marketplaces and financial data partnerships. These integrations reinforce its foundational position in B2B data plumbing and extend distribution across ecosystems.

Resilient & Sustainable Growth: Feedback suggests revenue and organic growth were modest but positive into 2025, with indications of margin improvement. Guidance and early‑2025 results pointed to continued low single‑digit organic expansion.

Ensono
Cloud • Information Technology
12 Offices
3,000 Employees
14 Benefits Hiring Now
Support mission critical workloads, modernize IT infrastructure and reduce total cost of ownership.

Ensono helps IT leaders be the catalyst for change by harnessing the power of hybrid IT to transform their businesses. Our broad services portfolio from mainframe to cloud, powered by an intelligent governance platform, is designed to help our clients operate for today and optimize for tomorrow. We are award-winning certified experts in AWS & Azure

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Ensono

Ensono's Top Stability & Growth Strengths

Strong Revenue Growth: Company disclosures indicate revenue expanded from about $224M at inception to roughly $1.1B and clients grew to 250+ by January 2026, reflecting sustained scale-up. Additional signals such as headcount increases and the launch of an AI & Innovation Division reinforce ongoing momentum.

Strong Market Position & Advantage: Multiple independent analyst assessments (ISG, Everest, IDC) place the company as a Leader in mainframe services and modernization, with Gartner listing it in a 2024 Market Guide for the niche. Credentials like the AWS Mainframe Modernization Competency and public-sector recognitions further underpin competitive strength in this segment.

Investor Backing & Capital Strength: Ownership by KKR since 2021 and a stated $250M, five‑year AI investment plan indicate access to capital supporting expansion and R&D. Capability-expanding acquisitions such as Amido and ExperSolve align with a funded growth strategy.

Unibuddy
Edtech • Social Impact • Software • Analytics
4 Offices
130 Employees
4 Benefits
Helping universities and colleges recruit and engage their best-fit prospective students.

Never before has higher education experienced so much change. How institutions recruit and retain a diverse student population is critical to get right. That's where Unibuddy comes in. Unibuddy is the leading peer-to-peer platform that connects prospective students with current students and staff. We work with 500+ higher ed institutions in 35 countries, on our way to empowering 10 million...

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Unibuddy
Evelyn Partners
Fintech • Payments • Financial Services
26 Offices
2,934 Employees
15 Benefits

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
Harness (goharness.com)
Fintech • Payments • Software • Financial Services
6 Offices
75 Employees
25 Benefits

Harness serves as the missing link between how we spend and what we believe in. Our financial technology platform connects consumers with nonprofits, financial institutions, and brands, helping consumers’ everyday spending to be a true representation of who they are—an ongoing vote for the world they want to live in.

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Harness (goharness.com)
LHH
HR Tech
87 Offices
8,174 Employees
35 Benefits

Our end-to-end HR solutions future-proof organizations and careers all over the world. Through Advisory, Career Transition & Mobility, Learning & Development and Recruitment Solutions, we enable transformation, and our job is never done because there’s always another tomorrow to prepare for. We make a difference to everyone we work with, and we do it with local expertise, backed by a...

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LHH

LHH's Top Stability & Growth Strengths

Strong Market Position & Advantage: Strong position is emphasized in outplacement/career transition, including being characterized as a global leader and appearing in a small top tier alongside a few major peers. Scale across 60+ countries and multi-country deal capability supports resilience in enterprise deployments.

Innovation-Driven Growth: Innovation focus is highlighted through AI-enabled career-transition tooling and platform investments such as Career Studio and broader tech-enabled coaching and matching. New service launches and practice expansions (e.g., advisory and executive search) reinforce an active push into higher-value offerings.

Product Line Growth: Product-line momentum is described as strongest in Coaching & Skilling, with Ezra and General Assembly’s B2B skilling cited as rapidly expanding. Career Transition & Mobility is also described as steady to growing, helping offset softness in other areas.

UNRVLD
eCommerce • Information Technology • Analytics
6 Offices
220 Employees

UNRVLD is a digital experience and technology agency that puts business outcomes first. We work with results driven organisations worldwide where digital experience is business critical. Our digital specialists put value creation at the heart of everything we do. We deliver the outcomes our clients need to become more than just better. Being unrivalled is about setting a new standard...

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UNRVLD
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
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Informa
Artificial Intelligence • Information Technology • Business Intelligence
26 Offices
3,741 Employees
13 Benefits

Informa is a leading international intelligence, events and scholarly research group. We're here to champion the specialist, connecting people with knowledge to help them learn more, know more and do more. We're a FTSE 100 company with 10,000 colleagues working in over 30 countries and a presence in all major regions, including North America, South America, Asia, Europe, the Middle East...

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Informa
Phillips 66
Logistics • Energy
20 Offices
10,562 Employees
38 Benefits

Energy manufacturing and logistics company

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Phillips 66
GWI
Other
6 Offices
679 Employees
30 Benefits

We’re the target audience company that does things a bit differently. Our job is to cut through the noise and give you facts you can trust. Our flagship study represents more than 2 billion people around the world, and it tells you how consumers are changing; their actions, ideals, perceptions, feelings... (you get the gist). The world’s largest (and smallest)...

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GWI
Qarik
Software
2 Offices
67 Employees

Go further, faster — A Digital Transformation Specialist with expertise, experience & insight. Career Opportunities: https://qarik.com/careers

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Qarik
Memrise
Edtech
2 Offices
75 Employees

Hola! Bonjour! Hallo! こんにちは! Memrise is an award-winning language learning system with over 50 million users. Specialising in combining cognitive science, powerful tech and entertaining content, Memrise makes language learning genuinely recreational. We offer 200 language combinations across 24 languages on our website, iOS and Android apps. By leveraging lots of brain science and plenty of humour, we’re striving to...

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Memrise
GitHub
Software
3 Offices
3,232 Employees
30 Benefits

GitHub is the best place to share code with friends, co-workers, classmates, and complete strangers. Over 31 million people use GitHub to build amazing things together across 97+ million repositories. With all the collaborative features of GitHub, it has never been easier for individuals and teams to write faster, better code.

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GitHub

GitHub's Top Stability & Growth Strengths

Strong Market Position & Advantage: GitHub is widely regarded as the category leader with unmatched scale, network effects, and community gravity that make it the default hub for collaboration and discovery. Its rich ecosystem, social discoverability, and enterprise-grade options reinforce adoption across organizations.

Innovation-Driven Growth: AI-assisted development via Copilot and an end-to-end workflow (Actions, Packages, security, Codespaces) are catalyzing usage and deepening engagement. Tight IDE and platform integrations reduce friction and anchor developers in the product.

Market Expansion: Rapid growth in developers, repositories, and contribution activity indicates broad-based expansion, with AI availability accelerating sign-ups. Enterprise momentum alongside rising AI adoption suggests widening reach across both individuals and organizations.

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
Go Testify
Gaming • Software
Belfast
10 Employees

Testify is a secure self-service platform which allows game companies and publishers the ability to distribute their game(s), watch player sessions and hear honest, unbiased feedback from players across the world in their own environment. A player intelligence platform for the games industry, providing a suite of tools that allows game studios to better understand player behaviour which in turn will...

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Go Testify
Hansen Technologies
30 Offices
1,645 Employees
15 Benefits

Hansen Technologies (ASX:HSN) is a global software and services provider to the energy, water/utilities and telecommunications industries. The company currently serves more than 600 customers in over 80 countries, supported by a collaborative and diverse team that embraces the hybrid way of working. For connection and collaboration, we have more than 36 offices and development centres located around the world....

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Hansen Technologies
Artemis Technologies
Software • Transportation
2 Offices
182 Employees

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
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...

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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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