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Lemlist is a sales engagement platform headquartered in France that helps sales teams find leads, automate multi-channel outreach across email, LinkedIn, WhatsApp, and phone, and close more deals. The company was co-founded by Guillaume Moubeche and is currently led by CEO Charles Tenot. Lemlist reached $720K in ARR by end of 2019, grew to $3.5M in 2020, $10M in 2021, and $23.2M by 2023. As of 2026 the company is generating $53M in revenue with a team of 160 people. In 2021 the founders completed a $30M secondary transaction at a $150M valuation, the only outside capital the company has taken after being profitable and bootstrapped from day one. Lemlist was built on a product-led growth model with no paid acquisition, relying instead on community building, personal branding on LinkedIn, content marketing, and a Facebook group that grew to 20,000 salespeople. The company expanded from a single cold email tool into a suite of five products under the Lempire umbrella, including Lemwarm, Lemcal, Taplio, and Tweet Hunter, two of which were acquired. By the time of the March 2024 interview the business had 50,000 customers worldwide, 10,000 free trials per month, and was generating 35 to 45 percent EBITDA margins. The single most notable strategic inflection point came in October 2025 when CEO Charles Tenot signed a $25 million deal to acquire Clap, a call intelligence platform doing $2M in ARR with a seven-person team. The deal was structured as $5M cash, $5M in vendor loans, convertible bonds, and up to $10M in earnouts tied to growing Clap from $2M to $10M ARR within three years, illustrating Lemlist's shift from a bootstrapped email tool to a full sales intelligence platform funded entirely by its own profits.