Ex-employees of traffic report monopolist Australian Traffic Network have rounded on their former firm as momentum builds before the "ageist" unfair dismissal case of Channel Nine helicopter whiz Jason Bouman.

In a series of exclusive interviews with Crikey, ATN staff have described a poisonous culture of back scratching and bullying at the private equity-owned conglomerate that soaks up more than $20 million a year in profits while its executives bank bumper $1 million pay cheques.