[1] Businesses based on the site enjoyed special tax incentives on staff and profits until 2003, which attracted a large number of multinational companies to the area.
In the late 1950s, Shannon Airport was dependent on transit passengers and refuelling for trans-Atlantic flights.
[3] The Shannon Free Zone was intended to attract investment in exchange for tax incentives and tariff reductions.
[2]: 55 While many of these incentives have since ceased,[5] as of 2019, there were reportedly more than 100 international firms employing more than 8,000 people based at the Shannon Free Zone.
[6][7] Companies who have invested at Shannon have included Element Six (formerly DeBeers Industrial Diamonds), GECAS, GE Sensing, Intel, Lufthansa Technik, Zimmer and UCB.