Chose Apollo ILS (Integrated Library System)
Lusha is LinkedIn plugin and provide one contact at a time and is very expensive for a small company. They only have one advantage over Apollo is direct phone numbers of the prospects.
Independently Invited by TrustRadius
A de minimis incentive was given to thank the reviewer for their time. The incentive was not used to bias or drive a particular response, nor was the incentive contingent on a positive endorsement. More Info