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.
This guide discusses the following parent companies: Bosch, Stanley Black & Decker, Fortive, Apex Tool Group, Tectronic Industries (TTI), Emerson, Werner Co., Illinois Tool Works (ITW), JPW (Wilton), Snap-on, Ideal, Newell Rubbermaid, Textron, and Delta PEC.