The wife of coach company owner David Hannell has said that the family are "shocked and sad."
The coach, believed to be operated by Merseypride, crashed off the A3 in Surrey late last night.
Eileen Hannell, who lives with her husband in Runcorn, Cheshire, declined to identify the driver but said he had worked for them "for quite a while".
– Eileen Hannell, wife of Merseypride owner David Hannell
There's nothing we can say because my husband doesn't know that much.I was coming back from holiday and he picked me up at the airport this morning and said, "I've got some sad news."
He had a phone call from the police at 2.30am and was told there were two people in hospital and three people dead."
Nothing like this has ever happened before
As soon as he heard he went into the office and was there all through the night. My husband is busy taking phone calls and trying to find out what's happening - we just don't know.It's awful.
We are all shocked and still trying to take it in. It's very sad.