Jan 11, 2026 · 1h 13m · 20growth
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
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In this episode of 20 Growth, host Harry Stebbings interviews Luke Harries, Head of Growth at ElevenLabs, to dissect how the AI voice pioneer achieved a $7 billion valuation and $400 million in annual revenue. Luke breaks down their PM-less organizational model, sharded growth team structure, 7-part launch playbook, and enterprise marketing metrics.
How this conversation actually went
Every chapter scored 0–10 on four independent dynamics. Hover any point for the reasoning behind the score. Harry holds 30.4% of the talking time here. How this is scored →
Harry as informed peer 4.8 Guest teaching 5.8 Guest disagreement 3.2 Harry pushing back 4.4
speaking balance: gold is Harry, purple is the guest (3 minute bins)
Sharpest disagreement ▶ 37:42 Rejection of generic enterprise terminology
Luke forcefully pushes back against vague industry jargon, declaring that he hates the word enterprise because it obscures the specific human buyer.
Hardest push from Harry ▶ 35:43 Challenging CAC to LTV validityHarry directly rejects standard venture frameworks, arguing that CAC to LTV is too inaccurate and transient to serve as a meaningful operating metric.
Biggest teaching moment ▶ 55:31 Reframing consumer AI retention dynamicsLuke re-educates Harry on evaluating prosumer AI cohorts, proving that high seat-level churn is offset by viral account expansion and overall NRR.
Harry holds his own ▶ 47:08 Deconstruction of TBPN's media modelHarry demonstrates sharp analytical authority by breaking down TBPN's impressive Twitter clip viral reach versus its poor audience retention metrics, calling it the Clubhouse of media.
the scores for every segment, with the reasoning behind each
| Chapter | Topic | Harry as informed peer | Guest teaching | Guest disagreement | Harry pushing back | Why |
|---|---|---|---|---|---|---|
| Origin Story: Cambridge Hackathon to ElevenLabs | 2 | 4 | 2 | 1 | Harry opens with friendly banter about their shared history and asks how Luke met founder Matty. Luke explains meeting at a Cambridge hackathon and recounts rejecting Matty's early pitch for ElevenLabs because a horizontal audio strategy seemed absurdly ambitious. Harry adds light humorous commentary without pushing back on substance. | |
| Startup Lessons from Fella & Market Timing | 3 | 5 | 1 | 1 | Luke shares lessons from his previous startup Fella, describing a quick detour into COVID testing during YC and missing the massive GLP-1 wave by stepping away too early. Harry draws a brief parallel to the Hyrox founders running COVID test sites but largely lets Luke lead the narrative on market timing. | |
| Executing a Horizontal Strategy with Sharded Growth Teams | 5 | 6 | 3 | 6 | Harry presses Luke on how ElevenLabs succeeds with a horizontal strategy when venture consensus strongly favors a single tight ICP. Luke agrees with the premise in theory but explains how ElevenLabs shards growth teams around individual product lines to operate like mini-focused startups. | |
| Building the Growth Function & Video Marketing Rules | 4 | 6 | 2 | 3 | Luke outlines how to structure an early growth function, prioritizing generalist growth marketers over specialized hires and advocating for motion design over founder monologues. Harry questions the need for motion designers, prompting Luke to explain why founder monologues fail to retain modern user attention. | |
| The 7-Part Launch Playbook & Algorithmic Momentum | 5 | 6 | 4 | 4 | Luke details ElevenLabs' tier-1 launch playbook, including Tweet threads, motion graphics, and shameless team amplification to trigger social algorithms. Harry relates by describing how he manually DM'd 50,000 followers to cross-promote his newsletter, reinforcing Luke's thesis on unscalable launch tactics. | |
| Technical Blog Posts, Mini-Tools & Modern SEO | 5 | 6 | 3 | 5 | Harry brings up data from Vercel's CEO questioning whether AI will kill traditional SEO within two to three years. Luke reframes the argument, agreeing that long-form text articles are declining but demonstrating why interactive mini-tools remain highly defensible SEO drivers. | |
| Distribution Channels & Multi-Platform Growth Strategy | 4 | 5 | 3 | 5 | Harry challenges Luke on whether posting across emerging networks like BlueSky and Threads dilutes focus compared to dominating primary channels. Luke firmly responds 'Do both,' advising founders to repurpose high-performing assets onto secondary channels where competition is low. | |
| Enterprise Marketing, Webinars & Payback Period Metrics | 6 | 6 | 3 | 6 | Harry forcefully questions the utility of CAC to LTV ratios, calling them inaccurate and easily misleading. Luke reframes the metric around CAC to payback period and explains how modern webinars are being rebranded into value-driven academies. | |
| Defining Enterprise ICPs & Founder Brand Strategy | 5 | 6 | 5 | 4 | Luke forcefully rejects the vague usage of the term 'enterprise', insisting that companies must pinpoint specific roles like engineering managers rather than treating enterprise as a single buyer. Harry suggests aggressive video clipping for founder brand strategy, but Luke cautions that forced founder branding can become a major distraction. | |
| Brand Equity, Public Relations Risks & Counter-Positioning | 6 | 5 | 4 | 6 | Luke breaks down 7 Powers counter-positioning using Ramp's attack on Brex's rewards model. Harry demonstrates high industry expertise by offering a critical analysis of media platform TBPN, describing it as having excellent channel-market fit for Twitter clips but weak core retention, comparing it to Clubhouse. | |
| Why ElevenLabs Operates Without Product Managers | 5 | 7 | 4 | 5 | Luke explains why ElevenLabs does not employ Product Managers, arguing that engineers should directly own product vision and execution. Harry asks how Luke prevents former PMs turned growth leads from secretly micromanaging engineering work, which Luke answers by highlighting lean team structures and rigorous technical screening. | |
| AI Revenue Quality, Retention Cohorts & Lovable | 6 | 7 | 4 | 6 | Harry challenges current AI startup revenues as 'sugar high' and points out that 14% monthly user churn in tools like Lovable is unsustainable in traditional SaaS. Luke educates Harry on the distinction between user-level seat churn and account-level net revenue retention driven by viral expansion. | |
| Quickfire Round: Growth Lessons & AI Breakthroughs | 6 | 6 | 4 | 5 | During the quickfire round, Luke labels running paid marketing before achieving product-market fit as an expensive mistake. Harry attempts to defend using paid ads early for message testing based on his media business, but Luke stands firm on prioritizing core product iteration first. |
Statements from this episode (33)
Stebbings: ElevenLabs is valued near $7B with $400M in annual revenue
“Now, this was recorded in May, but now the company is valued at close to seven billion dollars, does four hundred million in revenue”
Luke Harries passed on angel investing in ElevenLabs early on
“I was kind of angel investing them. I was like, this is not something I want to invest. What do you mean? Step one, you're going to build the world's best AI audio model. Something no one else has ever done. Anyway, so I did an invest.”
Harries: Wordware raised $40M, the largest Y Combinator raise ever
“And also Philip, the guy who organized it, he founded Wordware, which is the largest raise from YC ever. I think it's about forty million dollars.”
Harries: Curative reached $100M revenue at record speed
“One of the fastest companies ever to a hundred million dollars in revenue. And that company became curative.”
Harries: Digital CBT healthcare businesses face a six-week retention ceiling
“The tricky thing with digital CBT is it's great for lots of people, but it really only lasts about six weeks from a business point of view.”
Harries: Semaglutide is the biggest medical advancement since penicillin
“This is, like, the biggest thing in medicine since penicillin”
Harries: Men's health startup Fella generates over $30M annual revenue
“That company's now doing over thirty million dollars a year in revenue, helping thousands of patients”
Harries: ElevenLabs founders want to build a bigger company than Google
“Matty and Peter literally want to build a bigger company than Google.”
Harries: ElevenLabs enterprise marketing team will reach 20 people this year
“Our enterprise marketing team, by the end of this year, will be 20 people, and that's just for enterprise marketing, and then separately, our mobile app will be its own five to A 10 person growth team.”
Harries: Five-minute founder monologue videos fail to retain launch audiences
“The big mistake that I see with most people's videos is that they put the founder themselves, they do a full five minute monologue themselves about the company mission, and unless you have the editing skills of MrBeast, you're just not going to keep people for…”
Stebbings personally DM'd his first 50,000 Twitter followers to build his newsletter
“For the first 50,000 Twitter followers I got, I personally DM'd everyone, and I suggested that they follow our newsletter as well.”
Harries: X Algorithmically Downranks Tweets Containing External Links
“Don't put the link in the first tweet, because Elon Musk has even said they actively downrank people when they do that.”
Harries: Long-form blog SEO content will increasingly die over time
“This is, you know, long words, long-form articles. That, I think, will increasingly die over time.”
Harries: Over 70% of Zapier's SEO traffic goes to its blog
“If you look at Zapier, over 70% of their SEO traffic still goes to their blog.”
Harries: Interactive SEO tool pages will remain effective for five-plus years
“The part which I am confident will stick around for at least five years are tool pages”
Harries: Startups should hire a front-end growth engineer early for mini-tools
“This is why I think right at the start you should hire a growth engineer that's front-end focused that can independently be focused on building these and exposing these small bits of value to Out so that people can get and experience the value as quick as poss…”
ElevenLabs hired the creator behind their top YouTube search result
“We've actually just hired our first in-house creator, whose only job is to create TikToks, YouTube videos, Instagram shorts, YouTube shorts for 11 Labs, and the way we actually hired this guy is, if you typed in 11 Labs on YouTube, he had the most viewed video…”
ElevenLabs' affiliate program generates tens of thousands in MRR with zero maintenance
“So for example, affiliates, we set up over a year and a half ago, and that now is bringing in over, you know, tens of thousands of dollars of MRR Per month. But this was set up a year and a half ago by one engineer in one week, and then no one's touched it sin…”
ElevenLabs uses marketing-sourced SQLs as enterprise North Star metric
“What we've landed on as our North Star metric there is number of marketing sourced sales qualified leads.”
ElevenLabs targets CAC payback periods between 12 and 36 months
“Actually, the day-to-day metric and ratio we're really thinking about is CAC to payback period, rather than CAC to LTV. We set different payback periods depending on which product line and how aggressive we want to be, but these vary between, say, 12 months, 2…”
ElevenLabs uses consumer products as low-CAC entry points for enterprise growth
“We actually have done this funky move of we've led in a consumer product, which enables us to get the CAC incredibly cheap, and then people may move up to creator or even enterprise.”
ElevenLabs co-founder Mati Staniszewski avoids Twitter in favor of in-person keynotes
“The way we think about it at 11 Labs, it's like, what channels really naturally resonate with the founders, and do they get really excited by? And so for us, Matty is fantastic in person, at large speaking events, at Fireside Chats, and so that's what he reall…”
Harries: Ramp's counter-positioning against Brex is genius marketing
“I think that's really smart for product development, but I think what Ramp has done with their counter positioning against Brex is just genius marketing.”
Stebbings: TBPN is the Clubhouse of our era with near-zero engagement retention
“I think it's Clubhouse of our era. And so they have brilliant channel market fit, which is they crush it on Twitter for very specific clips. When you look at any of their view rates, very little. When you look at their retention on engagement rates, fuck all.”
Harries: ElevenLabs' growth team consists primarily of former product managers
“And most of the team actually is ex-PMs, Who are now doing growth, and so they're responsible for the marketing as well”
Harries: AI will push product managers into growth or product engineering
“Yeah, I think PMs move to either growth, so you combine the PM role with marketing, and depending on your size and how strong your engineers are, you do more or less of the PM, or many PMs will actually move towards product engineering, which is they're somewh…”
Harries: 60% to 70% of ElevenLabs' core engineering code is AI-generated
“In terms of core engineering, I would say probably 60, 70% of code now is AI written, so still like the majority.”
Harries: ElevenLabs uses zero AI-generated code for research engineering
“Where we don't do any AI written or AI generated code is our research engineering, where it's just like research engineering and research, where it's a very different style of work, and also these code bases are so sensitive.”
Harries: Retool is 'dead at the wheel' amid AI transition
“And I think Retool is kind of dead at the wheel at the moment. I don't hear the recent things they've been launching, and so I could imagine Loveball going in that direction.”
Harries: Organic LinkedIn is today's most underappreciated tech growth channel
“The most underappreciated growth channel I see is organic LinkedIn. On Twitter, you're competing against the best writers in the world. You're competing against Harry Stebbings running shorts. Yeah, Bill Ackman. Like, it's really tough. On LinkedIn, you're com…”
Harries: Apple marketing unreleased Apple Intelligence features is bad growth strategy
“The thing I'd most like to change about the world of growth is is you just should not launch products which aren't actually ready. The biggest villain I see doing this at the moment is Apple. And so we've always held Steve Jobs in our mind as just like this be…”
Harries: Conversational AI agents will completely replace inbound SDR roles
“The function of an inbound SDR is I'm sure the best ones are persuasive and they're friendly, but really the function is data collection, and so instead, one, why don't you just add that to the form in the first place? Well, the reason is people don't really w…”
Harries: Bryan Johnson's 'Don't Die' campaign is the premier growth strategy in tech
“The best growth strategy I've seen is what Brian Johnson is doing. His marketing is so good that they made a Netflix show about his marketing, and I do think Brian Johnson's actually being a authentic. Like, he really does care about longevity, about creating …”