Thanks for looking at my proposal. I have worked on similar task where I have searched information to create a database for US public schools,Australian retail stores, france online kids stores, yoga studio europe,Cosmetic distributors and various other industries through LinkedIn, manta, yelp, yellow pages, jigsaw, lead411 etc. with contact detail of their decision makers.
And for email I am very much familiar with the tools like email hunter, mail tester, reparative and Gmail tools to assure the accuracy of emails. so whole database is verified through these tools.
I can sell you database of any required catagory or niche you want for to use.I am professionally trained and has worked on multiple projects and ensured 100% customer satisfaction since 2010. We can have a discussion if you have any query.
Regards
Maninder