The phrase "a considerable customer" is correct and usable in written English.
It can be used to describe a customer who contributes significantly to a business, either in terms of revenue or importance.
Example: "Our company has recently secured a contract with a considerable customer, which will greatly enhance our financial stability."
Alternatives: "a significant client" or "a major customer".
Look at the ACME Inc's of today; Facebook has a considerable customer service challenge.
The report defines "scaling" as "a stage in a company's development after it has established a viable product or service, a proven market, a clear commercialization strategy, and a considerable customer base".
Since its launch on 1st July 2005, in a short period of time VivaCell has managed to build a nationwide network and a considerable customer base.
The reasons most people call obvious are: BofA's deep pocket to fund his fast-expanding business, and the bank's credibility to erase considerable customer doubts about buying and selling through a "discount broker".
Public awareness of the problem "has prompted considerable customer concern, speculation, and media attention due to the significance of the Prius image," Carter said in the e-mail.
Matt at Steel Cake Watches is offering his customers a considerable discount on all Steel Cake models, reducing everything to $75. Use the discount code "steel75" on checkout.
If I'm being completely honest though, there's probably a considerable chunk of T-Mobile custhatrs that will never take their phones outside of the confines of the United States.
But Netflix has a terrific reputation among its customers and a considerable head start.
McDermott believes this new focus on selling to individual corporate units, plus the rapid growth in fast analytics, accounted for a considerable share of the new customers last fall.
While the iPhone still accounts for a considerable majority of AT&T's customers, nearly everyone is getting in on that act.
