"global base" is correct and usable in written English.
You can use it to refer to a wide range of people, places, products, or services that cover the entire world. For example, "The company has a global base of operations, with offices in five different countries."
The Independent was prompted to look at GE's UK-based healthcare taxes after it announced plans this month to move its global base from Amersham to the US.
Facebook chose Ireland as its global base of operations, handling everything outside of North America from there.
London has sought to become the global base of choice for Indian companies by highlighting a common legal framework and a useful time zone.
The Rolls executive warned that countries around the world were "investing huge amounts of political and economic resources" into trying to attract manufacturers to open new facilities and turn their region into a global base for new technologies.
"With this strong financial foundation, a broad range of products, technologies and solutions, and a global base of customers and partners, Sun is well positioned to achieve its goals".
If consummated, the takeover will vastly expand the geographic reach of Vodafone, which already is the world's biggest wireless telephone company, giving it dominance in the European market and a global base of more than 50 million customers.
UBS Global, based in London, and Mr. Icahn are investors in Mylan, based in Canonsburg, Pa.
Goodman Global, based in Houston, makes Amana air-conditioning and heating systems.
Steve Harding, who had been chief executive at OgilvyAction, becomes chief executive at Geometry Global, based in New York.
Mr. Lopardo turned State Street Global, based in Boston, into one of the world's biggest asset managers, with $727 billion under management.
By easing visa rules Britain could persuade more Indian firms to set up global bases in London and use the city's finance and business skills.
