generation de lead pour entreprise du bâtiments.

hello I am looking for a person who could do lead generation for me. I would like to have a marketing agency in the building industry. I would like to help building companies by doing google advertising for companies that already have a website that are already degitalized. I would like to have last name first name telephone number (email but not obligated) social networks website etc... and if possible you could see how much turnover they make? I am seeing several service providers with whom I would like to work on the long term if it suits me and what happens I would like to work with you in the long term.

and especially who speaks French.