ANSWER: When you are buying your electrical engineering insurance policy for your business, the insurer will naturally ask for details such as business address, type of trade as well as your current or projected turnover. The insurer may also inquire about the business structure of your electrical engineering firm (i.e. whether you are in a sole proprietorship, partnership, limited liability company or corporation).
However, they are unlikely to require you to provide the actual business registration details. As such, it is generally possible to get an electrical engineering insurance policy while you are still doing the paperwork for setting up your firm.