Compile a list of companies employing between 25- 250 people in Reading, Berkshire

Hi,

I run a service offering cognitive Behavioural therapy to help people to overcome stress and anxiety.

I am looking to build a list of small to medium sized companies in Reading and surrounding 15 mile area in Berkshire:

I require the following information in spreadsheet format

Name of head of human resources or occupational health, phone number and email address
Name of director of the company, email address and phone number
No. Of employees
Type of business
Address

I will be using the list to contact and offer help for employees who are have taken time off work for stress and offer wellbeing workshops to help improve the productivity and the work environment.