Doing a research on each company website management page to find the business owner details will help to build a small business in the USA list. This is a time consuming data research process. You can eliminate this by purchasing a small business email list from a list vendor.
Before purchasing an email list of small business owners you need to ask if these lists are permission based or not. Another question to ask is the email list of small business owners who opt-in or not. Small business owners' lists for marketing need to be permission based to avoid CAN-SPAM penalties.
You can buy up-to-date small business lists from InfoGlobalData. These contacts are verified and sourced from business registries, public records, yellow pages, and other official government business records.
Get business owner lists by doing research in google or other yellow page directories. Small business mailing lists can be used for marketing if you can find the small business email list which are accurate and validated.
Free email list of business owners list is not available. If you are getting any free small business email list make sure you verify the list before using it for any email marketing.