In Israel you cannot get a recognized Hechscher if the place of business is open on Shabbat. The only exception to this is hotels which have an agreement with the local Rabbanut to give a Hechscher for the dining room often with restrictions as to what can and cannot be done in the lobby lounge.
Of couse if the hotel wants a Mehadrin (extra strict) Hechscher, no business is allowed anywhere.
Because of the above and for other reasons the Rabbunut (local municipal Rabbinical Council) Hechscher is not acceptable to many Ultra Orthodox Jews and therefore many private supervisory organizations (BADATZ) have sprung up to give a higher level of supervision
They are well known here and abroad by the circles which need and use them
So in the end anyone can find want they want with the bottom line being closed on Shabbat

Any by the way Shmulke Bernstein OB"M had the best Spare Ribs anywhere.

Chanukah Sameach to all