National Contractors.com is one of the fastest growing contractor referral services on and off the internet. We can refer contractors for any residential, commercial and industrial project ranging from $5000 to $100,000,000 plus in value – nationwide. Our affiliate program is the best one of its kind: we offer 3 different referral programs. You can earn $11 per confirmed lead. Our service takes a more hands-on approach when making referrals ensuring the customer receives great service from the start of the bidding to completion of the project. Affiliate info. Terry Lynch, National Contractors.com..