# The 30 largest companies with a mobile app in Dublin
Tamtam tracks 64 companies with a mobile app headquartered in Dublin. This list ranks the 30 largest by number of employees on LinkedIn, led by Dunnes Stores, Allegion and Aer Lingus. Their median headcount is 1,471. Half of them were founded in 1986 or later.
The companies with a mobile app in Dublin are mostly large organizations, with several well-established firms alongside some younger companies. Noteworthy examples include Dunnes Stores, a retail company, and Allegion, a global leader in seamless access solutions. Aer Lingus operates as Ireland's national airline, while An Garda Sรญochรกna serves as the national police and security service.
Several companies in the retail sector are prominent, such as Lidl Ireland and Tesco Ireland. The entertainment sector is also represented by firms like Paddy Power, a sports betting and gaming operator, and PokerStars, a global poker platform. A significant number of these companies were founded in the mid-20th century, indicating a strong historical presence in the region.
๐ฎ๐ช Dublin ยท 30 companies ยท Updated Nov 11, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Dunnes Stores](https://www.tamtam.ai/c/dunnes-stores) (dunnesstores.com)
A company offering contemporary fashion, stylish homewares, and fresh quality food experiences, committed to creating better value for customers | Retail | ๐ฎ๐ช Dublin | 14,000 | 1944 |
| 2 | [Allegion](https://www.tamtam.ai/c/allegion-dublin) (allegion.com)
Global leader in seamless access solutions for homes, businesses, schools, and institutions, specializing in securing people and assets around the door | Appliances, Electrical, and Electronics Manufacturing | ๐ฎ๐ช Dublin | 7,123 | |
| 3 | [Aer Lingus](https://www.tamtam.ai/c/aer-lingus) (aerlingus.com)
National airline of Ireland operating modern fleet, connecting UK, Europe, North America via Dublin and Shannon airports with US Pre-Clearance. | Airlines and Aviation | ๐ฎ๐ช Dublin | 3,884 | 1936 |
| 4 | [An Garda Sรญochรกna](https://www.tamtam.ai/c/an-garda-siochana) (garda.ie)
National police and security service in Ireland focused on keeping people safe with a vision of moral authority as servants of the people | Government Administration | ๐ฎ๐ช Dublin | 3,547 | 1922 |
| 5 | [PTSB](https://www.tamtam.ai/c/ptsb) (ptsb.ie)
The company provides banking services and emphasizes privacy and security by directing customers to customer service on Facebook and Twitter | Banking | ๐ฎ๐ช Dublin | 3,251 | |
| 6 | [An Post](https://www.tamtam.ai/c/an-post) (anpost.com)
Provides postal, communication, retail, and financial services across Ireland with a large national network and over 10,000 employees. | Utilities | ๐ฎ๐ช Dublin | 3,117 | |
| 7 | [RTE](https://www.tamtam.ai/c/rte) (rte.ie)
Ireland's national public service media offering radio, television, online, and mobile services, with impartial, creative, high-quality programming for diverse audiences | Media Production | ๐ฎ๐ช Dublin | 2,741 | 1926 |
| 8 | [Lidl Ireland](https://www.tamtam.ai/c/lidl-ireland) (lidl.ie)
Retail grocery chain offering high-quality products at low prices, operating numerous stores across Ireland and Northern Ireland with a large workforce. | Retail | ๐ฎ๐ช Dublin | 2,706 | |
| 9 | [Paddy Power](https://www.tamtam.ai/c/paddy-power) (careers.flutteruki.com)
International sports betting and gaming operator with leading brands in the UK, Ireland, Australia, and the USA, offering online and mobile services to millions of customers worldwide | Entertainment Providers | ๐ฎ๐ช Dublin | 2,668 | |
| 10 | [Iarnrรณd รireann Irish Rail](https://www.tamtam.ai/c/iarnrod-eireann-irish-rail) (irishrail.ie)
The national railway system operator in Ireland, providing intercity, commuter, and freight services within the Republic of Ireland and to Belfast | Rail Transportation | ๐ฎ๐ช Dublin | 2,157 | 1987 |
| 11 | [PokerStars](https://www.tamtam.ai/c/pokerstars) (careers.flutterinternational.com)
Leading global poker platform committed to quality entertainment Empowering team members to bring pace, responsibility, and team spirit to create unique experiences worldwide | Entertainment Providers | ๐ฎ๐ช Dublin | 2,046 | |
| 12 | [Tallaght University Hospital](https://www.tamtam.ai/c/tallaght-university-hospital) (tuh.ie)
One of Ireland's largest acute teaching hospitals providing adult, psychiatric, and age-related healthcare, specializing in urology, dialysis, robotic surgery, and trauma services | Hospitals and Health Care | ๐ฎ๐ช Dublin | 1,943 | 1998 |
| 13 | [Tesco Ireland](https://www.tamtam.ai/c/tesco-ireland) (tescoireland.ie)
Large Irish retailer. Serves customers and communities. Supports local suppliers. Provides diverse career opportunities across retail, head office, and distribution centers. | Retail | ๐ฎ๐ช Dublin | 1,905 | |
| 14 | [Playrix](https://www.tamtam.ai/c/playrix) (playrix.com)
A top mobile game company with 120 million monthly players, attributing its success to a talented global team prioritizing people over ideas | Computer Games | ๐ฎ๐ช Dublin | 1,599 | 2004 |
| 15 | [Mater Private Network](https://www.tamtam.ai/c/mater-private-network) (materprivate.ie)
Advanced healthcare provider offering specialized services including Heart and Vascular, Spine, Cancer, Surgery, and Robotic-assisted Surgery, with a focus on patient-centered care and innovation | Hospitals and Health Care | ๐ฎ๐ช Dublin | 1,471 | 1986 |
| 16 | [Foodhub](https://www.tamtam.ai/c/foodhub) (foodhub.co.uk)
Access exclusive online ordering privileges for restaurants and takeaways through our app for a convenient dining experience | Technology, Information and Internet | ๐ฎ๐ช Dublin | 1,265 | |
| 17 | [Bus รireann](https://www.tamtam.ai/c/bus-eireann) (buseireann.ie)
A major provider of bus transportation services in Ireland, offering a wide range of inter-urban, city, commuter, school, and local bus services | Ground Passenger Transportation | ๐ฎ๐ช Dublin | 910 | 1987 |
| 18 | [Smartbox Group](https://www.tamtam.ai/c/smartbox-group) (smartbox.com)
Offering a wide range of experience gifts across leisure themes, enabling people to share memorable moments and meaningful experiences. | Travel Arrangements | ๐ฎ๐ช Dublin | 811 | |
| 19 | [The National Maternity Hospital](https://www.tamtam.ai/c/the-national-maternity-hospital) (nmh.ie)
A leading provider of maternity, gynecological, and reproductive care, offering high-quality treatment, research, education, and a supportive environment for women and families | Hospitals and Health Care | ๐ฎ๐ช Dublin | 749 | 1894 |
| 20 | [Holafly](https://www.tamtam.ai/c/holafly) (esim.holafly.com)
A company offering data plans for travelers to stay connected worldwide, founded by individuals inspired by their own frustrations | Telecommunications | ๐ฎ๐ช Dublin | 727 | 2017 |
| 21 | [The Irish Times](https://www.tamtam.ai/c/the-irish-times) (irishtimes.com)
Leading Irish quality newspaper delivering news, opinion, and analysis to readers through multi-platform media, including digital offerings like email digests and podcasts | Newspaper Publishing | ๐ฎ๐ช Dublin | 724 | 1859 |
| 22 | [Virgin Media Ireland](https://www.tamtam.ai/c/virgin-media-ireland) (virginmedia.ie)
Leading cable and broadcast business in Ireland, providing award-winning broadband, TV, mobile, and home phone services Also, offering connectivity solutions for businesses and public sector | Telecommunications | ๐ฎ๐ช Dublin | 703 | 1970 |
| 23 | [AvaTrade](https://www.tamtam.ai/c/avatrade) (avatrade.com)
A global online trading broker with over 400,000 customers, offering a wide range of trading instruments and platforms with a focus on user experience and regulation | Financial Services | ๐ฎ๐ช Dublin | 685 | 2006 |
| 24 | [Brown Thomas](https://www.tamtam.ai/c/brown-thomas) (brownthomas.com)
Luxury department stores offering stylish, sophisticated retail experiences across multiple locations in Ireland, including flagship stores and an online platform. | Retail | ๐ฎ๐ช Dublin | 631 | 1849 |
| 25 | [Bord Gรกis Energy](https://www.tamtam.ai/c/bord-gais-energy) (bordgaisenergy.ie)
Bord Gรกis Energy offers innovative energy services and solutions in Ireland, focusing on benefiting and serving over 750,000 customers since 1976 | Utilities | ๐ฎ๐ช Dublin | 594 | |
| 26 | [Allianz Partners, Health](https://www.tamtam.ai/c/allianz-partners-health) (allianzcare.com)
Provides health, life, disability insurance and protection services globally, supporting organizations to safeguard employee health and wellbeing. | Insurance | ๐ฎ๐ช Dublin | 499 | 2000 |
| 27 | [The Maxol Group](https://www.tamtam.ai/c/the-maxol-group) (maxol.ie)
A family-owned business operating a network of convenience forecourts in Ireland, providing retail fuels, wholesale fuels, convenience goods, fuel cards, and lubricants to local communities. | Retail | ๐ฎ๐ช Dublin | 479 | 1920 |
| 28 | [McCabes Pharmacy](https://www.tamtam.ai/c/mccabes-pharmacy-dublin) (mccabespharmacy.com)
The company offers pharmacy services and products, focusing on patient care, staff well-being, and community involvement through a professional and compassionate team approach. | Retail Pharmacies | ๐ฎ๐ช Dublin | 478 | 1977 |
| 29 | [Hostelworld Group](https://www.tamtam.ai/c/hostelworld-group) (hostelworld.com)
A social network-powered OTA in the hostelling sector, connecting travelers through social features and aiming to help them find people to hang out with | Travel Arrangements | ๐ฎ๐ช Dublin | 474 | 1999 |
| 30 | [Xpress Health](https://www.tamtam.ai/c/xpress-health) (xpresshealth.ie)
A healthcare technology platform connecting professionals and facilities, offering work flexibility, high pay rates, and streamlined staffing solutions | Hospitals and Health Care | ๐ฎ๐ช Dublin | 457 | 2020 |
## How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 11, 2026.
## More company lists in Dublin
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- [Financial services firms in Dublin](https://www.tamtam.ai/l/financial-services-firms-dublin) (85)
- [Financial Services companies in Dublin](https://www.tamtam.ai/l/financial-services-companies-dublin) (81)
- [Professional services firms in Dublin](https://www.tamtam.ai/l/professional-services-firms-dublin) (75)
- [Critical infrastructure operators in Dublin](https://www.tamtam.ai/l/critical-infrastructure-operators-dublin) (66)
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- [Consulting firms in Dublin](https://www.tamtam.ai/l/consulting-firms-dublin) (42)
- [Public sector organisations in Dublin](https://www.tamtam.ai/l/public-sector-organisations-dublin) (41)
- [Retail companies in Dublin](https://www.tamtam.ai/l/retail-companies-dublin) (39)
- [Subscription businesses in Dublin](https://www.tamtam.ai/l/subscription-businesses-dublin) (35)
- [Education providers in Dublin](https://www.tamtam.ai/l/education-companies-dublin) (33)
- [AI companies in Dublin](https://www.tamtam.ai/l/ai-companies-dublin) (31)
- [Healthcare providers in Dublin](https://www.tamtam.ai/l/healthcare-providers-dublin) (31)
- [Government Administration companies in Dublin](https://www.tamtam.ai/l/government-administration-companies-dublin) (30)
- [Construction companies in Dublin](https://www.tamtam.ai/l/construction-companies-dublin) (27)
- [Hospitals and Health Care companies in Dublin](https://www.tamtam.ai/l/hospitals-and-health-care-companies-dublin) (27)
- [Publicly traded companies in Dublin](https://www.tamtam.ai/l/publicly-traded-companies-dublin) (27)
- [Insurance companies in Dublin](https://www.tamtam.ai/l/insurance-companies-dublin) (25)
## The same list elsewhere in Ireland
- [Companies with a mobile app in Ireland](https://www.tamtam.ai/l/companies-with-mobile-app-ireland) (99)
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Source: https://www.tamtam.ai/l/companies-with-mobile-app-dublin