It can be. In the course of divorce or dissolution proceedings, the financial resources of both parties must be considered and divided according to factors such as your needs, the needs of your children, your financial obligations and the standard of living you enjoyed before the separation. The resulting arrangement must be fair to both you and your former partner.
As such, business assets such as shares in a limited company, assets owned as a sole trader, or an interest in a partnership can be considered as part of your divorce financial proceedings.
If you owned the company before you got married or entered into a civil partnership, you may be able to argue that it should not be considered a marital asset. However, if the company has generated income and helped you and your partner maintain your standard of living throughout the marriage or civil partnership, it is more likely to be taken into account as a financial resource during the divorce financial proceedings.