Lead generation / Data scraping

Hello

I would like a price for giving me the contacts details (name, address, phone number and email address) of 500 businesses (non retail) that have over office based 30 staff in the following regions:

-Croydon
-Redhill
-Reigate
-Crawley
-Clapham
-London Bridge area
-Purley
-Coulsdon
-London Blackfriars

Please do NOT include retail shops (eg TK Maxx, Tesco, etc).

Let me know what you can do for the budget.

Thanks

Darren