How many of the major watch makers use ETA movements?

[Bisquitlips]

I was just wondering how many of the major watch makers such as Omega, Panerai, Breitling, and so forth use an ETA or modified ETA movement in their watches.

I know that Panerai has begun to make an in house movement, but the prices on these appear to be very expensive in comparison to Rolex movements which are now all in house.

Also, what watch companies use strictly in house movements?