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20Growth: The $6.6B Growth Engine Behind ElevenLabs | Why ElevenLabs Do Not Have PMs | The 7 Part Launch Playbook to Crush All Launches with Luke Harries, Head of Growth @ ElevenLabs

Shownote

Luke Harries is Head of Growth at ElevenLabs, where he leads marketing, product, engineering, and developer experience. ElevenLabs has raised $281M with the latest round pricing the company at a $6.6B valuation. Previously, Luke held roles at PostHog and M...

Highlights

In this episode, we dive into the high-velocity growth strategies powering one of AI's fastest-rising stars. Luke Harries, Head of Growth at ElevenLabs, unpacks how a bold technical vision evolved into a $6.6B company by redefining product-led growth in the age of generative AI.
07:23
Digital CBT had limited impact in early health-tech efforts.
17:27
The core message of a launch video must be conveyed in the first 30 seconds.
43:06
Brand authenticity is hard to rebuild once compromised, especially in enterprise sales.
57:34
The biggest mistake early B2B founders make is doing paid marketing too early.
1:05:25
Conversational AI can pre-screen deals and replace inbound SDRs

Chapters

How a Horizontal AI Platform Became a $6.6B Growth Machine
00:00
What It Takes to Launch Products That Go Viral (And Why Most Fail)
15:00
Why Payback Period Beats CAC—and Other Metrics That Actually Matter
30:00
Can You Build a Billion-Dollar Company Without Product Managers?
45:00
Is Voice AI the End of Inbound Sales as We Know It?
1:00:00

Transcript

Harry Stebbings: This is 20 Growth with me, Harry Stebbings, and I'm so excited for the episode today. This is the best 20 Growth show that we've ever done. It's the most downloaded 20 Growth show of 2025, featuring ElevenLabs' head of growth, Luke Harries...