As you will see many times within various notes, you take ALL assets from savings to pensions and property, put them into the big pot take out debts and then the split starts at 50/50 in the case of young children with you then your side of the pot will get slightly more depending on your earnings will state what the split will be. all asets must be shown woe betide the person who hides thngs and then is found out by the court.
Businesses can be problematic because there is a danger that dividing it will kill the goose that laid the golden eggs. It is becoming a recognised problem amongst some businesses when a senior manager/director is threatened with divorce and the settlement might have an effect of the viability of the business. In some cases it can be a solution to allow the husband to keep the business and the wife may get a disproportionate share of the assets to compensate.
I would say you may need legal advice because it can happen that people in business may find it easier to 'doctor ' the state of the enterprise unlike most of us who are taxed via PAYE and couldn't do that sort of thing even if we were so inclined.
Without knowing the state of your finances and those of your husband, it is, I'm afraid, not possible to answer the question as to what you would get. You both have to exchange detailed statements of your finances and no solicitor will give you an idea of your likely position without seeing them.