The phrase "a source of business" is correct and usable in written English.
It can be used to refer to something that generates or contributes to business activities or revenue.
Example: "The new marketing strategy has proven to be a source of business for our company, attracting more customers than ever before."
Alternatives: "a revenue stream" or "a business driver".
Plaintiffs' lawyers count on these events as a source of business.
He spearheaded the development of the newspaper's Chinese language Web site and introduced China Confidential, a source of business intelligence related to Chinese trade.
Other than a £50,000 grant from Glasgow council, the ship receives no public subsidy, though she is a wonderful ornament and a source of business to the seafronts of many other local authorities.
To do that, Patrick suggests being honest and forthright and saying, "I can see that there is much more I would like to find out about you and your company, especially with regard to people I might be able to introduce to you as a source of business or who might be able to help you; but just like you, there are many other people I would like to meet at this conference.
Networking with other interior designers allows consultants to work together on 1 large project, which provides a source of business for a consultancy business.
As she pursued an M.B.A. at Georgetown University, she started reading the Wall Street Journal, which had distinguished itself as a source of consequential business journalism, and decided that she would rather write about the business world than work in it.
Corporate budgets everywhere are under strain, and IT is often still seen as a cost rather than as a source of new business models and revenues.
Storefronts and galleries, though a source of steadier business, cannot provide the lively anticipation and competition among collectors that major shows can, said several dealers.
Though some local retailers feared the fresh competition that the shopping center would bring, others welcomed it as a source of fresh business, Mr. Montet said.
Foursquare, a company now focused on transforming itself into a source of local business information and reviews more along the lines of Yelp, is releasing a feature that it hopes will help to extract more value from users' check-ins.
Microsoft's Satya Nadella believes that empathy is a key source of business innovation and is a prerequisite for one's ability to "grasp customers' un-met, unarticulated needs".
