Generally no, all communication between husband and wife is what is called Spousal Privilege that states one may not force a wife to testify against her spouse. However, the Spousal Privilege may be breached by an exception to the rule.
A parent company is a company that owns enough voting stock in another firm (subsidiary) to control management and operations by influencing or electing its board of directors. A parent company could simply be a company that wholly owns another company.
Also, because a parent company and a subsidiary are separate entities, it is entirely possible for one of them to be involved in legal proceedings, bankruptcy, tax delinquency, indictment, and/or under investigation, while the other is not. subsidiary may itself have subsidiaries, and these, in turn, may have subsidiaries of their own. A parent and all its subsidiaries together are called a group, although this term can also apply to cooperating companies and their subsidiaries with varying degrees of shared ownership.