Lead generator wanted for corporate clients in marketing & communications

I have a small business providing communications & marketing consultancy to corporates. I'm relatively new and don't have the time that I would like to make direct cold contact with my targets - which at this stage are large businesses that manufacture food and drink products.

I'm have a target list of businesses. I am looking for someone to identify the right contact(s) within that business - who are likely to have titles like 'Head of Corporate Affairs' - and develop the initial contact, converting to meetings where possible.

Ideally i'm looking for someone who understands the world of communications & marketing. It is important that the person representing my business grasps what it is we do and what the client is likely to look for.

My initial target list is going to be around 100 companies. Budget/rate will be by discussion on likely time required etc.