Your next customer might hire someone through an AI assistant and never visit your website. Llibert Argerich, Thumbtack's first-ever Chief Marketing Officer, previously scaled Udemy's customer business from $250 million to nearly $700 million across 65 languages. On In Other Words he shares how Thumbtack is embedding its marketplace of 300,000 service professionals directly into AI platforms like ChatGPT, Claude, and Alexa Plus and why the company treats every zip code as a distinct market. Llibert explains how he expanded a search-dependent acquisition model into an 11-channel growth engine.
Your next customer might hire someone through an AI assistant and never visit your website. In this episode of In Other Words, host Jason Hemingway sits down with Llibert Argerich, Thumbtack's first-ever Chief Marketing Officer, who previously scaled Udemy's customer business from $250 million to nearly $700 million across 65 languages and led marketing across eight countries at eBay.
Llibert grew up in Andorra, the thirteenth-smallest country in the world, speaking three languages before adding English as his fourth. That multilingual foundation shaped a career built on understanding that what works in one market will fail in another, whether "market" means a country or a single neighborhood in Seattle. At Thumbtack, that same principle runs at a hyperlocal level across millions of zip codes, each with its own supply and demand dynamics. He explains how he diversified Thumbtack's growth into an 11-channel engine and partnered with the CFO to prove marketing's contribution to the P&L, and why the company is now making its 300,000 vetted professionals available through AI assistants so customers can get answers and hire without ever reaching the website
What You’ll Learn:
- How Thumbtack proved marketing's contribution to the P&L
- Why every zip code is a different market with different economics
- What Thumbtack learned opening its marketplace to AI assistants
- How Thumbtack maintains trust across eleven channels
- How LLMs decide which brands to quote
Llibert Argerich is the first Chief Marketing Officer at Thumbtack, the home services platform that generated nearly $500 million in revenue in 2025. His remit spans marketing, product, data, engineering, and sales. Over the past 25 years, Llibert has built growth engines at some of the world’s most recognized technology companies, including Thumbtack, Udemy, eBay, and Expedia. Beyond Thumbtack, he also serves as an advisor to companies including iVisa and VuMedi, helping organizations build repeatable, profitable growth through technology, data, and AI.
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Highlights and YouTube Chapters:
- 00:00 Introduction
- 02:20 Growing Up in the World’s 13th Smallest Country
- 04:00 Marketing eBay across eight countries
- 06:26 Scaling Udemy to $700M across 65 languages
- 10:45 The value exchange happens at the zip code
- 13:57 Moss is a problem in Seattle, but not in Phoenix
- 15:54 From search-dependent to an 11-channel growth engine
- 18:37 The CMO who also owns product, data, and engineering
- 21:20 If marketing can't show up on the P&L, expect to be treated as a cost
- 27:45 Thumbtack opened its marketplace to ChatGPT, Claude, and Alexa
- 31:41 How LLMs decide whether to quote your brand
- 34:02 A hand-illustrator in the middle of an AI overhaul
- 40:41 Twenty years of segmentation and every customer is still unique
Episode Resources: