OK, here's what I came up with.
From what we've seen on the show, Tony Soprano has had sex with, or it's been implied he's had sex with in the past, the following ladies:

Carmela Soprano
Irina Peltsin
Charmaine Bucco
Gloria Trillo
girl at the Deerpark Casino
an Icelandic Air stewardess
Valentina La Paz
Svetlana Kirilenko
a pre-school teacher
a weightlifter
And he got a BJ from some stripper at the Bing!