poważny szanowany in inglese:

reputable store

It is a very reputable firm.

The safest thing to do is to phone a reputable company every time you need a cab.

The company was very reputable, so Peter felt safe doing business with them.

If you have a burglar alarm fitted, make sure it is done by a reputable company.

reputable scientists

A reputable company in your city offers car wash services

I am looking for a reputable jeweller who will be able to appraise this watch and tell me how much it's worth.