The phrase "a functioning business" is correct and usable in written English.
You can use it to describe a business that is operating effectively and successfully.
Example: "After several months of hard work, we finally established a functioning business that meets the needs of our customers."
Alternatives: "an operational business" or "a viable business".
In its struggle to remain a functioning business and avoid liquidation, Enron said it was in advanced talks to obtain new loans.
Factory was more successful as a conceptual prank than as a functioning business venture: it assigned catalogue numbers to a lawsuit, a Manchester night club named the Haçienda, and the Haçienda's resident cat, before declaring bankruptcy, in 1992.
"Leaving behind a functioning business requires you to make some serious changes in how you see and operate your business.
Thanks to YouTube, the company already has experience turning user-generated content into a functioning business at scale.
For a broad practical usage of the introduced ODDs, a functioning business model and some kind of standardization committee are required.
Angels typically get into business formation earlier in the feeding chain than venture capitalists, who usually want to see some kind of a functioning business.
We were all functioning business people again.
If all goes well, you will have a full functioning business, which if you keep up with it, could turn into a big organization!
The key question is whether Bearwood was operating as a fully functioning business at the time the donations were made.
A venture by the Port of New York Authority, a politically insulated government body that had no business speculating in real estate, the project displaced a whole functioning business district in favor of ugly towers of fearsome size.
We teach them how to pack it, how to ship it, how to invoice it, how to clear it out of customs, how to import raw materials and how to run a high functioning business.
