Database Cleaning using internet research

I need an old database cleaning via internet research.

The brief is to ascertain whether the people listed still work at the relevant companies listed and hold the same title. It will involve googling to find their LinkedIn profiles or company pages. I need quick and accurate workers. You will be given 100 contacts at a time and timescale to complete so you must be happy to have frequent communication with me. I need a base of about 5 people to do this.