Yes, it is okay for a C corporation to hold an interest in several LLC's. The only caveat is if you have an LLC that makes an election to be taxed as an S corporation. LLC's are eligible to make an S election, however, there are limitations on who can be a shareholder in an S corporation. S corporation shareholders are limited to natural persons and certain types of trusts, so a C corporation cannot hold stock in an S corporation. If the LLC is treated as a disregarded entity for federal tax purposes, or the LLC filed an election to be taxed as a C corporation, then there shouldn't be an issue. If the LLC's are wholly owned by the C corporation, the C corporation is the sole Member of the LLC, and can appoint the Directors to be Managers of the LLC. Each LLC should maintain separate books and records and have its own LLC operating agreement.