Haim,
This is what's called "stock music" ... most likely not a real piece of any known work. If it were, then each time that piece is heard, "royalties" would have to be paid to the publisher AND all the musicians.
Commercial ads like those can't afford to pay those royalties, so 'stock music' is born ... it may sound like a known piece, but someone has created something to sound like a known work (copied the idea perhaps) and made it their own - and a soundtrack is never made of it. No doubt what's being played and heard is copyrighted, but finding who or what owns that copyright is like looking for a needle in a haystack. It is usually a "one time" thing and was not saved by the ad agency.
Probably not the answer you were seeking, but hopefully this gives you a little insight into what takes place when ad agencies create video ads like these.
