Insurance for self employed driver

Hi peeps does anyone know if you are a self employed driver with a ltd company and you go direct to transport company for work would you need any additional insurances or public liability insurances??
I would like to try and cut out the middle man ( the agency )… :smiling_imp:

You will be covered by whoever you drive for, get some sickness insurance just in case you have to go sick though.

das.co.uk/