Travel start-up rides Asia's expat wave
18 February 2014 Last updated at 00:51 GMT
Imagine running a company catering for customers who are anything but loyal - they are fickle in their tastes and constantly on the move.
But business is booming for entrepreneurs who sell products and services to the expat community.
Alex Linnerth is one businessman who is cashing in on the rich, single and lonely expats in Singapore.
His travel and event agency has generated $200,000 of revenue in its first year - but he says it has not been an easy ride.
Mr Linnerth explains how he became part of the expat economy.