51. Global Cloud Xchange

Reliance Globalcom provides global communication services to service providers, enterprises and consumers across the globe through through its global network. Its service spans 230 countries and territories. In 2014 it was rebranded to Global Cloud Xchange.

50. Zynga

Zynga Inc is a provider of social game services with more than 240 million monthly active users playing its games, which include CityVille, Zynga Poker, Draw Something, Hidden Chronicles, FarmVille, CastleVille and Mafia Wars. Zynga's games are available on a number o...

49. IAC Search & Media

IAC Search and Media (formerly AskJeeves) is an internet company with more than 50 fast-growing, highly-related brands serving loyal consumer audiences. Its mission is to harness the power of interactivity to make daily life easier and more productive for people all ove...

48. VCE

VCE, formed by Cisco and EMC with investments from VMware and Intel, offers converged cloud infrastructure systems.

47. Mindshare

Mindshare Media Ireland Limited is the Irish subsidiary of global media group, Mindshare, which is ultimately owned by global media giant WPP. Mindshare Media Ireland Limited is 50 per cent owned by DDFH&B and 50 per cent owned by Ogilvy & Mather Limited. In Irela...

46. Orange Business Services

Equant Network Services International Limited is a trading company of Orange Business Services (OBS) in Ireland. It provides data processing and clearing services to the OBS group which is a global IT and communications services provider. It also provides telec...

45. Cineflix

The principal activity of the Cineflix International Media Limited is the distribution of non-fiction programmes, principally produced by the company's parent. Cineflix Rights distributes content from international producers, new producers and from its own produc...

44. IMRO

IMRO is the body that administers the performing right in copyright music in Ireland on behalf of its members, typically songwriters, composers and music publishers. Music users such as broadcasters, venues and businesses must pay for their use of copyright music by...

43. Logicalis

Logicalis is an international managed services and IT solutions provider with over 6,500 employees worldwide. Logicalis has had successful operations in Dublin and Cork for over 25 years. Employees are highly-trained service specialists who design, specify, deploy and...

42. Verizon Ireland

Verizon is a global group specialising in communications, IT solutions, information and entertainment services. The group is headquartered in Basking Ridge, New Jersey, and employs more than 100,000 people. Its Irish operation provides telecommunication services and...

41. 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.

40. Publicis QMP

Publicis QMP is an advertising and marketing company based at Sir John Rogerson Quay in Dublin. Publicis QMP is affiliated to the French multinational communications giant Publicis Groupe, the third largest marketing group in the world. Other Irish affiliates include P...

39. M/A-COM Technology Solutions

M/A-COM Technology Solutions Holdings, Inc. is a supplier of high performance analog RF, microwave, millimeterwave and photonic semiconductor products that enable next-generation Internet and modern battlefield applications. M/A-COM Tech is headquartered in Lowell, Ma...

38. BBDO

Irish International is a brand marketing and communications company and a member of BBDO Worldwide, with a presence in over 80 countries. Irish International's clients include Diageo, Bank of Ireland, UPC, Mars, Electric Ireland, Aer Lingus, Centra, Avonmore, Indepen...

37. Acra Control

Acra Control is a supplier of airborne data acquisition networks and recording systems, and real-time data processing ground stations to both commercial and defence aerospace markets. Its customers include all of the major aerospace prime contractors and test agencies...

36. Siemens

Siemens Ltd is the Irish arm of the German electronics and electrical engineering company. Siemens operates in the industry, energy and healthcare sectors and provides infrastructure solutions for cities The company has been involved in major projects in Ireland fro...

35. Maxim Integrated Products

Maxim Integrated Products makes integrated analog and mixed-signal semiconductors. The company supplied a broad range of linear and mixed signal integrated products, commonly referred to as analog circuits. In May 2010, the company opened its offices in Clonskeagh, D...

34. J2 Global

J2 Global offers cloud-based unified-messaging and communications services to individuals and companies throughout the world. Such services include voicemail solutions, web-initiated conference calling, storage messaging services, online backup and virtual office sol...

33. OMD Ireland

OMD is a media agency and is part of the Omnicom group, a global marketing services company. It is based in Clonskeagh, Dublin 14.

32. Leaseplan Information Services

LeasePlan Information Services provides centralised information communication technology and infrastructure services within the LeasePlan group. It was established in Dublin in 2003. LeasePlan is a global vehicle leasing and fleet and vehicle management company headq...