Heli-skiing in the alps is basically restricted to Switzerland, as it is technically illegal in the European Union (Switzerland no being part of the EU). We use the words "technically" because the Italians (who are part of the EU) somehow seem to fly anyway. God bless them.
The heli-skiing that is done in Switzerland is limited to a couple dozen landing areas. Unlike operations in the US, helicopters are leased by the trip from commercial firms that might run anything from construction to rescue trips the same day. The pilots though, are first rate, and spend their careers flying at high altitude.
Heli-skiing in Switzerland is not generally done through "inclusive packages" as you would expect to find in Canada, for example. Bookings are done through local UIAGM guides (who can be found in most any Swiss ski resorts), and they will organize the helicopter. Generally there is one, possibly two runs in a day. Usually ending at very nice restaurant for a late afternoon lunch.
One popular option in the alps, is to take a ride up the mountain, and combine the descent with some back-country skinning. Sometimes, with only an hour or so of climbing, one can get into new valleys not accessible by helicopter and extend the descent by a good couple kilometers.
Conditions in the alps can very greatly - and although a trip with a guide is always fun (especially in the alps) conditions are not always good. The best option for those who would like to travel to the alps to heliski, is to book a week in a good ski resort (like Verbier) and coordinate withe a guide ahead of time. Set aside a couple days (or week even) with the guide, and if conditions are right, the guide will book a bird, if not, there are plenty of other ways the guide can take you off the beaten track for a true alps experience.
I can strongly recommend Swiss Guides in Verbier.
The Italian setup is similar to the Swiss - although there is a little more of a focus on the "inclusive" trip, with multiple trips in a day. Although, as explained above, heli-skiing is illegal in the European Union, but the Italians somehow seem to make it work.