Find Information from Websites and create excel spreadsheet

Looking to create a database from Australian Company Listings for specified Industry. We are looking for two industries at present: Real Estate Agencies and Accountants, located in Adelaide, Brisbane, Melbourne and Sydney. The Database will need to be in excel format and be able to be filtered according to:- If it is easier to do 2 databases, one for Real Estate Agencies and 1 for Accountants, that is absolutely fine by us. * Company Type (ie Real Estate Agency OR Accountants) * Company Name * State * Post Code * Address * eMail Address * Web Address ** Real Estate Agencies would need to be cross referenced with State Real Estate Governing body New South Wales (NSW) is REINSW Victoria (VIC) is REIV South Australia (SA) is REISA Queenslands is (QLD) is REIQLD