Detailed contact info required

Please read carefully: I need contact info from specific industries. Contact info I need: company name,address, phone, fax, web address, & EMAIL ADDRESSES. This project will be for many different industries, example I may ask for : electricians . I WILL NEED YOU TO FIND AS MANY AS YOU CAN, VIA DIRECTORIES, GOOGLE SEARCHES, FORUMS, ETC... THIS WILL BE FOR THE U.S.A., CANADA & MEXICO I DO NOT WANT TO BUY ANY PRE-EXISTING LISTS! I am anticipating about 10,000-15,000 contacts will be collected, so this project will take time. Give me your absolute best price per contact. Thanks