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 Síochána 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.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Dunnes Storesdunnesstores.com
A company offering contemporary fashion, stylish homewares, and fresh quality food experiences, committed to creating better value for customers |
14,000 | |||
| 2 |
Allegionallegion.com
Global leader in seamless access solutions for homes, businesses, schools, and institutions, specializing in securing people and assets around the door |
7,123 | |||
| 3 |
Aer Lingusaerlingus.com
National airline of Ireland operating modern fleet, connecting UK, Europe, North America via Dublin and Shannon airports with US Pre-Clearance. |
3,884 | |||
| 4 |
An Garda Síochánagarda.ie
National police and security service in Ireland focused on keeping people safe with a vision of moral authority as servants of the people |
3,547 | |||
| 5 | 3,251 | ||||
| 6 |
An Postanpost.com
Provides postal, communication, retail, and financial services across Ireland with a large national network and over 10,000 employees. |
3,117 | |||
| 7 | 2,741 | ||||
| 8 |
Lidl Irelandlidl.ie
Retail grocery chain offering high-quality products at low prices, operating numerous stores across Ireland and Northern Ireland with a large workforce. |
2,706 | |||
| 9 |
Paddy Powercareers.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 |
2,668 | |||
| 10 |
Iarnród Éireann Irish Railirishrail.ie
The national railway system operator in Ireland, providing intercity, commuter, and freight services within the Republic of Ireland and to Belfast |
2,157 | |||
| 11 |
PokerStarscareers.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 |
2,046 | |||
| 12 |
Tallaght University Hospitaltuh.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 |
1,943 | |||
| 13 |
Tesco Irelandtescoireland.ie
Large Irish retailer. Serves customers and communities. Supports local suppliers. Provides diverse career opportunities across retail, head office, and distribution centers. |
1,905 | |||
| 14 |
Playrixplayrix.com
A top mobile game company with 120 million monthly players, attributing its success to a talented global team prioritizing people over ideas |
1,599 | |||
| 15 |
Mater Private Networkmaterprivate.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 |
1,471 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 16 |
Foodhubfoodhub.co.uk
Access exclusive online ordering privileges for restaurants and takeaways through our app for a convenient dining experience |
1,265 | |||
| 17 |
Bus Éireannbuseireann.ie
A major provider of bus transportation services in Ireland, offering a wide range of inter-urban, city, commuter, school, and local bus services |
910 | |||
| 18 |
Smartbox Groupsmartbox.com
Offering a wide range of experience gifts across leisure themes, enabling people to share memorable moments and meaningful experiences. |
811 | |||
| 19 |
The National Maternity Hospitalnmh.ie
A leading provider of maternity, gynecological, and reproductive care, offering high-quality treatment, research, education, and a supportive environment for women and families |
749 | |||
| 20 |
Holaflyesim.holafly.com
A company offering data plans for travelers to stay connected worldwide, founded by individuals inspired by their own frustrations |
727 | |||
| 21 |
The Irish Timesirishtimes.com
Leading Irish quality newspaper delivering news, opinion, and analysis to readers through multi-platform media, including digital offerings like email digests and podcasts |
724 | |||
| 22 |
Virgin Media Irelandvirginmedia.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 |
703 | |||
| 23 |
AvaTradeavatrade.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 |
685 | |||
| 24 |
Brown Thomasbrownthomas.com
Luxury department stores offering stylish, sophisticated retail experiences across multiple locations in Ireland, including flagship stores and an online platform. |
631 | |||
| 25 |
Bord Gáis Energybordgaisenergy.ie
Bord Gáis Energy offers innovative energy services and solutions in Ireland, focusing on benefiting and serving over 750,000 customers since 1976 |
594 | |||
| 26 |
Allianz Partners, Healthallianzcare.com
Provides health, life, disability insurance and protection services globally, supporting organizations to safeguard employee health and wellbeing. |
499 | |||
| 27 |
The Maxol Groupmaxol.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. |
479 | |||
| 28 |
McCabes Pharmacymccabespharmacy.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. |
478 | |||
| 29 |
Hostelworld Grouphostelworld.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 |
474 | |||
| 30 |
Xpress Healthxpresshealth.ie
A healthcare technology platform connecting professionals and facilities, offering work flexibility, high pay rates, and streamlined staffing solutions |
457 | |||
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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.
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