A good lead list is narrow. “Dentists in Austin with a website and at least 4 stars” is far more useful than ten thousand random rows.
Tell me the niche and the area, and I will collect every matching business, clean the phone numbers into one format and remove the duplicates.
Fields I usually collect
- Business name, category and full address
- Phone number and website
- Email, when it is published on the business site
- Rating, number of reviews and opening hours
- Social media links
Sources
Google Maps, Yelp, Yellow Pages, industry associations, local chambers of commerce and most other public directories.
Personal data rules differ by country. I only collect business contact details that are shown publicly, and you are responsible for how you contact people afterwards.