Moving back to Own car from company vehicle

Hi
I have a company car which is fully expensed and insured by the company. I used to own a car 5 years ago, but the NCD has expired.

In the company car I have had 3 incidents - one my fault, one 50:50 and one nut my fault. Clean driving licence and no prosecutions.

I am buying my own car - what effect will the record above have on my insurance? Do companies count this or not?

thanks