The phrase "at a sponsored" is not complete and lacks context, making it difficult to determine its correctness in written English.
It could be used in contexts where you are referring to an event or activity that is being sponsored, but it needs additional information to be clear.
Example: "We will be attending a conference at a sponsored event next week."
Alternatives: "at a funded" or "at a supported".
At a sponsored breakfast on Friday, the Starcom media agency — part of the Starcom MediaVest Group unit of the Publicis Groupe — sent up jargonmania with the results of a poll, conducted through Facebook, to identify the least favorite buzzwords.
Brand advertising features general brand depictions, such as brand logos, product line logos, or spokescharacters, in the absence of a focus on a specific product (for example, showing the company brand on a sign at a sponsored event, on a scoreboard, or on a soccer uniform).
We could not enter the password-protected parts of the web-site that were only accessible to children who had registered at a sponsored promotional event, or who belonged to a hockey team sponsored by NIKE.
And Davidson College decided to refrain from serving Chick-fil-A at a school sponsored event after students started a petition.
The next day the candidates, including Eugene Platt of the Green Party, a former Army paratrooper, will appear together at a forum sponsored by a local chapter of the N.A.A.C.P.
Many guests were at a conference sponsored by a Texas-based evangelical group.
The Thailand and Uganda segments were shown at Trinity College at a reception sponsored by agencies that help people with AIDS.
Mr. Immelt spoke in Florida at a conference sponsored by a group of equity analysts called the Electrical Products Group.
The advertisers gave the big Internet providers an earful recently at a forum sponsored by Doubleclick, an advertising technology company.
So this happened - at The World Conference of Science Journalism, at a lunch sponsored by Korean female scientists and engineers - just yesterday.
Mr. Green offered his opinion in response to a question at a forum sponsored by Crain's New York Business magazine.
