How to kickstart and scale a marketplace business

This is the first part of a multi-post playbook by Lenny Rachitsky, drawn from interviews with people who built marketplaces like Airbnb, DoorDash, Uber, Etsy and Thumbtack. The core argument is that the chicken-and-egg problem of getting supply and demand together is best solved by starting small. Nearly every marketplace constrained its initial launch either geographically, for location-bound services, or by category, for shippable goods. The author stresses that good product-market fit mattered as much as growth tactics, and that past tactics may not transfer. Thumbtack is the notable exception, having launched broadly across categories and geographies. The piece sets up a series covering supply-versus-demand focus, supply, demand, and scaling.

01Key takeaways

• Start with one city or one category so supply and demand can reach critical mass quickly.
• For location-based services, aim for enough density in one neighborhood before expanding to new cities.
• Find the core use case where early traction appears and concentrate resources there.
• Double down on what is already working in a market instead of launching new things prematurely.
• Revisit first principles like selection, delivery quality and pricing when growth stalls, rather than chasing hacks.

02Key sections

Why marketplaces are attractive businesses

Marketplaces connect supply and demand and facilitate transactions without owning inventory. Network effects, barriers to entry, efficiency, scalability, and flexibility make them powerful models.

Caveats on learning from past successes

The author warns that product-market fit often drove success more than growth tactics, that tactics expire, and that interview-based recollections of events years ago may be imperfect.

The chicken-and-egg problem

A marketplace must convince one side to commit before the other will join, which makes early launch the biggest barrier to getting the flywheel moving.

Constrain the marketplace by geography or category

Almost every company started small, either in one city for location-dependent services or in a few categories for goods, to reach critical mass faster.

Thumbtack's contrarian approach

Thumbtack launched across all categories and geographies from the start, which increased usage frequency and gave it the revenue and traffic to iterate quickly.

03From the post

““Everyone's always looking for the hack - what's the channel that will unlock something big? But every time we looked for a reason we weren't growing, it always came back to the basics –– selection, delivery quality, pricing. That's it. Always come back to first principles. Whenever we made a mistake, we forgot this.” – Micah Moreau (DoorDash, VP of Growth) (This is a special edition of my newsletter — the first in a series of posts sharing insights from interviews with founders and early employees at today’s most successful marketplace businesses. Our regularly scheduled weekly Q&A series will resume in a few weeks.) Having worked at Airbnb for many years, I’m frequently asked about what Airbnb did right in order to grow into what it is today. While sharing my learnings, I’ve become increasingly wary of teams relying too heavily on a single company’s experience. There are so many factors that go into an eventual success story, and what’s effective once may not be again. Thus, I’ve been yearning to get a wider perspective on what has (and hasn’t)…”

04Frameworks mentioned

Summary and takeaways written by PM Atlas; quotes are short excerpts. © the original author.