59. Staffline

Staffline, formerly known as Grafton Recruitment, was founded in 1982 and was acquired by UK firm Staffline Group in 2018. The business continues to trade under the Grafton brand in Ireland. It has been a leading provider of recruitment solutions for over 32 years. ...

58. Gartner

Gartner Ireland provides research and advisory services relating to information technology. It provides independent research and analysis on , computer, hardware, software, communication and related industries. Clients range from chief information officers, senior busin...

57. Moduslink

Moduslink is a supply-chain solutions company. It designs and executes global value chain strategies to solve clients’ cost, time-to-market, customer satisfaction and revenue objectives.

56. DLL Ireland

De Lage Landen is a global provider of leasing, business and consumer finance solutions, including vendor finance and factoring. It is a wholly-owned subsidiary of the Rabobank Group.

55. CAE Parc Aviation

CAE Parc Aviation provides aviation personnel on lease to airlines and aviation support organisations. Originally a subsidiary of Irish flag carrier Aer Lingus, the ownership of Parc Aviation passed to management following a buyout in 1995. In July 2008, Parc Aviatio...

54. JWT Folk

The Lillington Group act as advertising agents and provide sales, promotion and marketing consultancy services. It owns Dublin ad agency JWT Folk.

53. Mott MacDonald Ireland

Mott MacDonald has been operational in Ireland for over 55 years, and is now one of the largest engineering consultancies in the country. With over 150 staff operating in Dublin, Cork and Waterford, the company has a total project delivery capacity in transport, water...

52. Willis Towers Watson

Financial management services provider Towers Watson agreed to a merger with insurance brokering giant Willis Group in 2015. The new Willis Towers Watson is a company domiciled in Ireland with more than 400 offices across 120 countries. Willis offers professional advic...

51. Dillon Eustace

Headquartered in Dublin, Dillon Eustace has also opened offices in Tokyo (2000), New York (2009), Hong Kong (2011) and Cayman Islands (2012). It focuses on financial services, banking and capital markets, corporate and M&A, litigation and dispute resolution, as well ...

50. Chubb Ireland

Chubb is a provider of security and fire safety solutions for businesses and industry nationwide. Each year it provides more than 12 million personnel hours of security, performs 150,000 security systems site inspections and services over 4 million fire extinguishers.

49. Wincanton

Wincanton Ireland is a logistics and records management company. As well as being a logistics provider, Wincanton Ireland also offers document storage facilities, data storage and archiving, and data destruction facilitiies. Restore Plc announced the acquisition ...

48. Premiere Conferencing

PGi provides teleconferencing and web-related communications solutions using video, web and audio conferencing enhanced with social networking and media sharing. Established in 1991, PGi now has a presence in 25 countries worldwide. The group's headquarters are i...

47. CWS-boco

CWS-boco is a provider of washroom hygiene solutions and textile rental and laundry services. Through its brand Micronclean, CWS-boco Ireland also provides clean room garment rental and decontamination services to the pharmaceutical, medical devices and microelectronics...

46. Ergo

A cloud & IT managed services provider, Ergo excels in matching technology to business needs & has been helping organisations achieve their strategic goals for 21 years.

45. Workhuman

Globoforce Limited is a subsidiary of Globoforce, a company which speciliaises in the provision of employee benefit schemes for big corporations. Founded in Dublin in 1999, the company opened a US office in 2004 and now is co-headquartered between the two countries. Er...

44. PFH

PFH Technology Group is a leading provider of ICT solutions to corporate, government, health and higher education organisations. Founded in 1985, the company employs over 237 employees with offices in Dublin, Cork, Galway and Belfast. Founded in 1985, the PFH organi...

43. Evros Technology Group

Evros Technology Group is a provider of IT managed services and systems integration. Established in 1990, Evros Technology Group offers support in the design, supply, implementation and support of organisations’ IT infrastructure.

42. Core Media

Core Media is Ireland's largest marketing communications group. The business consists of nine individual operating companies - Mediavest, Mediaworks, Starcom, Zenith, Core Knowledge, Engage Communications, Livewire, Ignite and Radical. Core Media has been voted Agenc...

41. BMD & Co

BMD & Co is a mechanical engineering contractor. It was founded in 1974 to service the pharmaceutical multinational sector. According to a report in the Irish Examiner, in 2011 a management team at BMD, previously a subsidiary of Cork-based construction firm the Bowe...

40. William Fry

William Fry works for global and domestic companies operating in Ireland, Irish government bodies, financial institutions and entrepreneurs.