Lemlist

Lemlist is the cold email outreach platform Guillaume Moubeche bootstrapped from Paris in 2018 after failing to raise funding and deciding to document the journey publicly on LinkedIn. That transparency — sharing every revenue milestone, every mistake, every customer win — built a following of tens of thousands of salespeople and marketers who watched the company grow from $0 to $10M+ ARR. The "building in public" content strategy was so effective that Lemlist became the most-discussed cold email tool on LinkedIn. The product differentiated on personalization: automatically inserting the recipient's name, company name, and even a custom screenshot of their website into email images — making cold outreach feel handcrafted at the scale of thousands. Lemlist added LinkedIn automation, warm-up sequences (gradually increasing email sending volume to avoid spam filters), and a multichannel sequence builder (email → LinkedIn connection → LinkedIn message → email) that became the standard playbook for outbound sales teams.