Short Version
I work for a company that provides software tools to multiple customers. One of our customers is ISO certified. Are there any software certification standards like ISO, ITIL, etc. where if one of our customers becomes certified, we would also have to become certified?
Background Information
I work for a company who has no clue what software quality assurance is about (no two different people have the same way of working, bug lifecycle is non-existent, etc.), but recently I saw on the website of one of our customers that they are ISO certified.
It seems that a company can be ISO certified while they get their tools from a company who doesn't care about quality. I call this "not contagious" as the ISO certification of one company doesn't impact the whether or not their suppliers have ISO certification.
Now my question: are there software quality standards that force software suppliers to also become certified; and if so, which ones and how popular are they?