PALO ALTO — West Coast teams from Gibson Dunn and Sheppard Mullin have helped engineer Aurora Capital Group's $267 million take-private of National Technical Systems.

Stockholders of NTS, a Calabasas-based testing and engineering services company founded in 1961, will receive about $23 per share as part of the transaction. They will vote on the proposal at a meeting to be held no later than Oct. 31, and the deal is expected to close before the end of the year.