What is the best cold email software for a sales team or agency of up to 20 people?
Ranked on published evidence (vendor pages, pricing and user reports), not on our own testing.
lemlist scores highest of the three cold email tools we ranked in October 2026, at 3.9 of 5, because one sequence can mix email, LinkedIn and call steps, from $55 a month billed yearly. Instantly is the better pick for a team sending from many inboxes, at $47 a month. Smartlead ties Instantly at 3.6 and charges by send volume, from $39 a month.
Scored for: A sales team or agency of 1-20 people sending outbound email. Read the methodology
For a sales team or agency of 1-20 people, all three tools sell self-serve plans that connect several sending inboxes, warm them up and run sequences. lemlist ranks first because it scores higher on fit and integrations, and it is the only one of the three that adds LinkedIn and call steps, on its Multichannel plan.
Instantly and Smartlead share second place. Instantly prices by emails sent each month, with unlimited sending accounts and warmup. Smartlead prices by send volume with unlimited email accounts, but its Base plan has no API, and no security certification was found on its pages.
None of the three was tested hands-on, so every setup score is capped at 3.