The short answer
The five largest software and IT companies headquartered in Ireland, ranked by reported number of employees, are Accenture, Stripe, FINEOS, Workhuman and Havok. Accenture is the largest, with about 814,000 employees (2026). We could verify five companies meeting our criteria, so this list is shorter than ten rather than padded with unverified names.
The five companies at a glance
| # | Company | Headquarters | Founded | Employees |
|---|---|---|---|---|
| 1 | Accenture | Dublin | 1989 | 814,000 (2026) |
| 2 | Stripe | Dublin and South San Francisco | 2010 | 8,500 (2025) |
| 3 | FINEOS | Dublin | 1993 | Not stated |
| 4 | Workhuman | Dublin and Framingham, US | 1999 | Not stated |
| 5 | Havok | Dublin | 1998 | Not stated |
Ranked by the most recent employee count stated on each company’s Wikipedia article or official website, checked 24 October 2026. Years in brackets show when that figure applies; companies without a stated figure are listed last.
The companies in detail
1Accenture
DublinA Dublin-domiciled professional services company specialising in technology and IT consulting, working in about 120 countries. It was founded in the United States.
- Headquarters
- Dublin
- Founded
- 1989
- Employees
- 814,000 (2026)
- Ownership
- Public company (NYSE: ACN)
2Stripe
Dublin and South San FranciscoBuilds payment processing software and developer tools for online businesses and mobile apps, with co-headquarters in Dublin and South San Francisco.
- Headquarters
- Dublin and South San Francisco
- Founded
- 2010
- Employees
- 8,500 (2025)
- Ownership
- Private
3FINEOS
DublinDevelops core software for life, accident and health insurers and government social insurance programmes, with offices in North America, Europe and Australasia.
- Headquarters
- Dublin
- Founded
- 1993
- Employees
- Not stated
- Ownership
- Public company (ASX: FCL)
4Workhuman
Dublin and Framingham, USProvides cloud-based human capital management software, best known for its social recognition and rewards platform.
- Headquarters
- Dublin and Framingham, US
- Founded
- 1999
- Employees
- Not stated
- Ownership
- Private
5Havok
DublinMakes physics, navigation and other middleware used in video games across consoles and PCs; founded by two Trinity College Dublin computer scientists.
- Headquarters
- Dublin
- Founded
- 1998
- Employees
- Not stated
- Ownership
- Subsidiary of Microsoft (since 2015)
What this list tells us about Ireland’s software industry
- Dublin is the main hub. 3 of the five companies on this list are headquartered there, with others in Dublin and South San Francisco, Dublin and Framingham, US.
- A long track record. The oldest company here, Accenture, was founded in 1989; the youngest, Stripe, in 2010.
- Founding wave. More companies on this list were founded in the 1990s (3) than in any other decade.
- Ownership mix. 2 of the five are publicly listed and 1 are subsidiaries of, or majority-owned by, other groups; the rest are independent private companies, cooperatives or state-linked organisations.
Ireland at a glance
- Capital
- Dublin
- Official languages
- Irish and English
- Currency
- Euro (EUR)
- Population
- 5.46 million (2025 est.)
- GDP per capita (nominal)
- $127,837 (2026 est.)
Economy. Multinationals in pharmaceuticals, medical devices, software and finance anchor the economy.
Technology. Ireland is the largest foreign location for big US technology multinationals.
Country figures from Wikipedia’s article on Ireland, checked 24 October 2026. Estimates are rounded and dated as stated there.
Working with software companies in Ireland
- Time zone. Ireland uses UTC+00:00 in winter and UTC+01:00 in summer (daylight saving time). Agree overlap hours in writing before a project starts.
- Data protection. The country is part of the European Union or the European Economic Area, so the General Data Protection Regulation (GDPR) applies and personal data is handled under the same rules as across the EU and EEA.
- Due diligence. Large companies on this list mostly sell their own products or enterprise services. If you need a development partner for a specific project, ask for case studies, interview the engineers and start with a short paid trial. Our guide on how to choose an IT staff augmentation company includes a free vendor scorecard.
- Budget. Typical 2026 hourly rates by region are in our IT staff augmentation cost and rates guide.
- Extra capacity. If you want developers to join your own team rather than outsource a whole project, our IT Staff Augmentation Services provide dedicated engineers who work in your time zone, tools and processes.
How we built this list
- Candidates. We started from Wikipedia’s list of companies of Ireland, the country’s best-known technology firms and companies regularly named in the local and international business press.
- Scope. We kept companies whose main business is software, IT services or a software-based platform, and that are headquartered in Ireland. Telecom operators, banks and hardware makers were left out, as were local offices of foreign groups. Companies founded in Ireland but now headquartered abroad are listed separately when relevant.
- Verification. For every company we checked headquarters, founding year, ownership, size and whether it is still active against its Wikipedia article or, where none exists, its own official website, on 24 October 2026. Each entry links to the page we checked.
- Ranking. Companies are ranked by their most recently stated number of employees, the most comparable size measure available for public and private firms alike.
- No payments. No company paid or was asked to appear. iCreativez Technologies is itself a software and IT services company, so we do not include or rank ourselves on country lists.
Employee figures come from different years, are sometimes self-reported on company websites and sometimes count a whole group rather than one company, so treat the ranking as a guide to scale rather than an exact league table.
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Software companies in nearby countries
Frequently asked questions
What is the largest software company in Ireland?
By reported number of employees, Accenture is the largest software and IT company headquartered in Ireland, with about 814,000 employees (2026). It a Dublin-domiciled professional services company specialising in technology and IT consulting, working in about 120 countries. It was founded in the United States.
Which city is the main software hub in Ireland?
Among the companies on this list, Dublin is home to the most: 3 of the five are headquartered there.
What is the oldest software company in Ireland on this list?
Accenture, founded in 1989 and headquartered in Dublin.
How did you choose the software companies in Ireland?
We considered the best-known companies headquartered in Ireland whose main business is software or IT services. We verified each one against its Wikipedia article or official website and ranked them by reported number of employees. No company paid to be included.
Why are there fewer than 10 companies for Ireland?
We only list companies we could verify. Rather than pad the list with names we cannot confirm, we show five verified companies and suggest nearby markets.
What is the economy of Ireland based on?
Multinationals in pharmaceuticals, medical devices, software and finance anchor the economy. Ireland is the largest foreign location for big US technology multinationals.
What languages and currency are used for business in Ireland?
The official languages are Irish and English, and the currency is the Euro (EUR).
Can I hire software developers to work with a team in Ireland?
Yes. Many businesses combine local partners with remote developers. iCreativez Technologies provides dedicated developers and offshore teams that can work your hours; see our dedicated developers page or contact us.
Sources
All company details were checked on 24 October 2026 against these pages:
- Wikipedia: List of companies of Ireland
- Accenture: en.wikipedia.org/wiki/Accenture
- Stripe: en.wikipedia.org/wiki/Stripe,_Inc.
- FINEOS: en.wikipedia.org/wiki/FINEOS
- Workhuman: en.wikipedia.org/wiki/Workhuman
- Havok: en.wikipedia.org/wiki/Havok_(company)
- Wikipedia: Ireland (country profile)
If you represent a company on this page and a detail has changed, contact us and we will review it. Related guides: top IT staff augmentation companies 2026 · staff augmentation vs outsourcing vs managed services.