OK, thanks for those details.
You aren't technically entitled to half of the businesses that your ex started. But if he used family money to start the businesses, he still owes you your share of that.
Let's say that we separate and we have $1million in the bank. I take it all and start my own business the next day. You don't get half the business because I started it after we separated. But I still owe you a half million dollars.
Does that make sense?
If you have a lawyer, you certainly will want disclosure as to what funds and assets went into these companies and where that money came from. This could be a clue as to him having been hiding money prior to separation, which he then used for the businesses right away after separation.
If there's litigation going on right now in divorce court, you will want to consider amending your application or the relief sought to include an accounting and division of the net family property. Talk to your lawyer about this, and if you don't have one then I recommend that it's time to get one.
Does that answer you? If there's more to discuss then please reply. If you're satisfied that I've answered you (even if it wasn't what you wanted to hear) I'd appreciate a positive service rating please.