Established in late 2017 by Guillaume Moubeche and his 2 associates, Lemlist democratized cold emailing in France. It is the leader in France with a large part of its clientele in the US. Lemlist is a tool for cold mailing and sales automation.
The feature that generated a lot of buzz was the addition of dynamic images in the email, which allowed, at the time, to stand out. The features highlighted by Lemlist are personalization via variables, cross-channel (emails, calls, LinkedIn), agency mode, integrations...
At Emelia, we were users of Lemlist. We did cold emailing for our clients, but it was way too expensive and lacked some features that, for us, were essential.