I collected leads of US-based companies with the fields Company Name, URL, Address, Phone, Company Email, CEO or Decision maker's name, Valid Email, and LinkedIn Profile. I have used numerous tools such as LinkedIn Sales Navigator, Zoominfo, Crunchbase, AngelList (now Wellfound), Yelp, and Advance Google Search to collect leads. All the emails are verified by email validation tools provided by my client such as Anymailfinder, ContactOut, and Rocketreach. I also use fastpeoplesearch.com for the executive's personal phone number.