No they didn't.Williams started out as Wolf. The HRT/Campos thing is questionable.
Even Ferrari has changed names (although Ferrari has always being part of it). Source: wikipediaMcLaren have always been McLaren, the only other team to never have changed their name since they were formed are Ferrari and possibly Hispania Racing Team but that's debatable!
Although, that entity was sold to Walter Wolf, Frank Williams was sacked as manager in 1976, and he then set up his own team (Williams Grand Prix engineering) in 1977, and they began running customer March chassis....Actually, Williams started out as Frank Williams Racing, running a Brabham for Piers Courage in 1969. In 1970, they ran the De Tomaso will tragic results, Courage dying in the car.