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Developing a growth model + marketplace growth strategy | Dan Hockenmaier

Dan Hockenmaier is an expert on marketplace strategy and growth. He was previously the Director of Growth at Thumbtack as well as a partner at Reforge, where he co-created the monetization track. Currently, he is the Head of Strategy and Analytics at Faire. In today’s episode, Dan shares the building blocks of a growth model, important considerations when building your growth model, and how to get started. We also chat about retention best practices, the complexity of building a marketplace, the future of marketplaces, and when it makes sense to add a SaaS business to a marketplace, and vice versa. Find the full transcript here: https://www.lennysnewsletter.com/p/developing-a-growth-model-marketplace — Where to find Dan Hockenmaier: • Twitter: https://twitter.com/danhockenmaier • LinkedIn: https://www.linkedin.com/in/dan-hock/ • Website: https://www.danhock.com/ — Where to find Lenny: • Newsletter: https://www.lennysnewsletter.com • Twitter: https://twitter.com/lennysan • LinkedIn: https://www.linkedin.com/in/lennyrachitsky/ — Thank you to our wonderful sponsors for making this episode possible: • Amplitude: https://amplitude.com/ • Flatfile: https://www.flatfile.com/lenny • Eppo: https://www.geteppo.com/ — Referenced: • Reforge: https://www.reforge.com/ • Casey Winters on Lenny’s Podcast: https://podcasts.apple.com/us/podcast/how-to-sell-your-ideas-and-rise-within-your-company • Faire: https://www.faire.com/ • Dan’s blog post on the future of marketplaces: https://www.danhock.com/posts/the-future-of-marketplaces • Careers at Faire: https://www.faire.com/careers — In this episode, we cover: (00:00) Dan’s background (04:01) What is a growth model? (07:20) The building blocks of a growth model for your own business (10:22) The value in building your own model (11:12) The importance of retention over growth  (14:49) Getting started building your model (19:18) The growth model at Thumbtack (20:36) The importance of the early user experience for retention (25:02) Why is a marketplace a good business? (28:23) Health metrics for marketplaces (33:47) Supply and demand, and why you shouldn’t neglect demand (36:23) The role of ROI equations and how to use them (39:16) Why you should tread lightly when working with marketplaces (42:43) Expanding marketplaces (46:50) How marketplaces can add a SaaS offering, and why adding a marketplace to a SaaS business is trickier (49:47) When is there an opportunity to unbundle? (54:43) B2B marketplaces  (56:36) What is fragmentation? (58:46) The future of marketplaces — Production and marketing by https://penname.co/. For inquiries about sponsoring the podcast, email podcast@lennyrachitsky.com.

Dan HockenmaierguestLenny Rachitskyhost
Oct 8, 20221h 4mWatch on YouTube ↗

At a glance

WHAT IT’S REALLY ABOUT

Designing Growth Models and Mastering Marketplace Dynamics with Dan Hockenmaier

  1. Dan Hockenmaier explains how growth models—typically spreadsheet-based—force teams to deeply understand how their business actually grows, especially around acquisition, retention, monetization, and reinvestment loops. He contrasts simpler SaaS and transactional businesses with the added complexity of two-sided marketplaces, where supply-demand interactions and second-order effects make modeling and decision-making much harder. A large portion of the discussion focuses on marketplace health metrics (like liquidity and share of wallet), when to prioritize supply vs. demand, and how to think about expansion, pricing, and vertical vs. horizontal strategies. Dan also outlines where marketplaces are heading, including the trend toward higher-value, more “managed” marketplaces and when they eventually cease to be marketplaces at all.

IDEAS WORTH REMEMBERING

5 ideas

Building the growth model is half the value.

Forcing your business into a spreadsheet-level growth model clarifies how acquisition, retention, monetization, and reinvestment actually connect. The process itself exposes misunderstandings, unrealistic assumptions, and reveals which levers truly matter.

Retention almost always matters more than you think.

Growth models show that small improvements in retention often beat larger gains in acquisition or conversion because retained users drive referrals, content, and contribution margin over time. However, retention is hard to move and usually requires deep product improvements, not just more emails or notifications.

In marketplaces, liquidity is the first and dominant problem.

Until a marketplace is reliably liquid—e.g., short wait times for rides or high search-to-booking rates—nothing else really matters. Founders should narrow scope (geography, category) and build toward a clear liquidity threshold before chasing broad GMV or expansion.

Demand is the ultimate currency, even if you start by seeding supply.

Although early marketplaces must often hustle to acquire supply, long-term power comes from aggregating demand. Supply-side efforts should always be justified through their impact on the demand experience and core customer metrics, not as an end in themselves.

Use dual-sided ROI models instead of naive ‘balance’ metrics.

Rather than obsessing over buyer–seller ratios, sophisticated marketplaces assign fully loaded CAC (including the cost of supporting the other side) and compare it to LTV and payback. This allows more rational decisions about how far to push supply or demand acquisition.

WORDS WORTH SAVING

5 quotes

The analytical representation of how the business grows is what I think of as a growth model.

Dan Hockenmaier

One of the immediate things that you see when you build these is that your growth is much more sensitive to customer retention than you can ever intuit.

Dan Hockenmaier

Until you have a liquid marketplace, really nothing else matters.

Dan Hockenmaier

Demand is the currency. If you are successful at aggregating the demand in your industry, you will have the winning marketplace.

Dan Hockenmaier

If you think about running a marketplace, you're basically like a gardener. You have to have a very light touch.

Dan Hockenmaier

What growth models are, why they matter, and how to build themDifferences between SaaS, transactional, and marketplace growth mechanicsMarketplace health metrics: GMV, unit economics, liquidity, and share of walletRetention, onboarding, and the outsized impact of early user experienceSupply vs. demand focus and ROI modeling in marketplacesMarketplace expansion strategies and vertical vs. horizontal positioningThe evolving future of marketplaces and the shift toward managed models

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