1. Aer Rianta

Aer Rianta International, or ARI, is one of the world’s longest-established travel retail companies. ARI designs, manages and operates duty free and duty paid airport retail outlets in Europe, Asia and the Americas.

2. Ght Global Hotel Trade

GHT Global Hotel Trade carries out the worldwide business of hotel allotments in the Caribbean area to tour operators.

3. Louis Fitzgerald Hotel Limited

Ocsas is the direct owner of a large number of subsidiary companies in the pub, hotel, investment and property sectors. The group owns Kehoe’s, the Stag's Head and the Grand Central Cafe bar in Dublin, the Quays in Galway and many other premises.

4. Doyle Hotels

The Doyle hotel group consists of eight luxury hotels in five cities in Ireland, the UK and US. Irish properties in the portfolio include The Westbury and The Croke Park Hotels in Dublin and the River Lee Hotel in Cork. There are three hotels in London, one in Brist...

5. Dromoland Castle

Dromoland Castle is a five-star hotel and golf club in Co Clare and one of the best-known luxury hotels in Ireland. The castle dates back to the 16th century and is the ancestral home of the O’Brien clan, direct descendants of Brian Boru. Nelson Mandela and George Bu...

6. Torski Limited

Torski Limited is the group behind the four-star Talbot Hotel Group and Wexford-based supermarkets Pettitt Supermarkets. Under the directorship of Desmond Pettitt, Bernadette Pettitt and Cormac Pettitt, the Talbot Hotel Group owns The Midleton Park Hotel and Oriel Hou...

7. Club Travel

Club Travel is one of Ireland's longest-established travel agencies. It is headquartered in Abbey Street, and specialises in consolidated, cheap and discount airfares. It has been established for 41 years and is the single largest Travel Management Company in Ireland...

8. The Merrion Hotel

The Merrion Hotel on Dublin's Merrion Square comprises 123 rooms and 19 suites. It is controlled by businessman Lochlann Quinn, Glen Dimplex founder Martin Naughton and the Hastings Hotel Group, the Northern hotel company controlled by Billy Hastings.

9. Stobart Air

Stobart Air, formerly known as Aer Arann, was established in 1970 by James Coen and Ralph Langan to provide a friendly, reliable, value for money air service to 1,000 islanders, located in Inis Mór off the west coast of Ireland with a fleet of BN-2 Islanders. In Janu...

10. Tourism Ireland

Tourism Ireland was established under the framework of the Belfast Agreement of Good Friday 1998. It is jointly funded by the Irish Government and the Northern Ireland Executive on a two-to-one ratio. It employs about 150 people in markets such as Great Britain, USA...

11. Commidare Holdings

The primary businesses of Commidare Holdings Limited are in retailing and the operation of hotels. Located in the South West of Ireland, its related Garvey Group operates a number of businesses in the food retailing, leisure and hospitality industry include Benner's...

12. Travel Counsellors

Travel Counsellors is an independent travel company with more than 1800 Travel Counsellors globally. There are 75 personal Travel Counsellors in the Republic with an Irish head office based in Cork.

13. Campbell Bewley

Campbell Bewley Group Ltd is the holding company of the Campbell Bewley Group. Bewleys is the biggest importer, roaster and supplier of fresh ground coffee to the Irish market. The company also owns the Rebecca's Cafes operation in Boston and the Java City coffee roas...

14. Carrigalines Heron Holdings

Carrigaline's Heron Holdings Ltd is a holding company for family supermarket and hotel firms based in Co Cork. Among these are Barry Collins' SuperValu in Carrigaline and Carrigaline Court Hotel. The company employs close to 300 people in Ireland.

15. Sunway

The Sunway Travel group is an Irish-owned tour operator. It was founded in 1966 as a small travel agency in Blackrock, Co Dublin. Its head offices are now in Dun Laoghaire.

16. The Shelbourne Hotel

The Shelbourne Dublin, A Renaissance Hotel is a part of the Marriott group and is located in the City Centre. A five-star hotel, The Shelbourne is housed in a 200 year-old, historic building and offers fine dining as well as two bars and lounges. The hotel also has ...

17. Crystal Holidays

Crystal Holidays is the trading name of Specialist Holiday Group Ltd. The company provides family holidays in European campsites with its Al Fresco division, ski holidays in Europe, America and Canada with Crystal Ski, and holidays in the lakes and mountains of Europ...

18. Moran Hotels

Cobglen owns the Red Cow Moran Hotel in south west Dublin. It formerly owned nine other hotels, but these were acquired by the Dalata group in early 2015.

19. Hostelworld

Hostelworld.com is a hostel booking website. Its parent company Web Reservations International (WRI) provides technology and distribution solutions to accommodation and other travel suppliers worldwide through a network of owned sites and affiliate partners. It has rep...

20. Dalata

Dalata Ltd was established in 2007 and launched the Maldron Hotels brand on 1st September 2008 comprising ten three-star and four-star hotels throughout Ireland. It now operates 40 hotels, including the 13-strong Maldron chain. In March 2014 it raised €265 million fr...