In a blog post, Clearspring CEO Hooman Radfar (pictured) said the firm “does not and never did collect, store, or sell personally identifiable information” as claimed in the lawsuit.

“The company used Adobe Flash local storage [the correct name for Flash cookies] in a manner consistent with other leading Flash analytics providers to deliver standard web analytics to publishers,” Radfar said.

“We plan to vigorously defend ourselves against these claims, and look forward to telling our side of the story in the appropriate forum.”

The lawsuit, brought by a handful of web users, also alleges that Flash cookies were used to restore deleted browser cookies to allow companies to continue to track online activity against users’ wishes.

Similar claims have been made in a complaint filed against web audience measurement firm Quantcast.

Neither firm has yet to formally respond to the lawsuits.