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Two-Sided Marketplace Launch

A marketplace launched one tight niche at a time: the atomic transaction defined, the hard side seeded first, liquidity measured weekly, trust and payments in place, and expansion only once the first market works.

Free · Mac (Apple silicon) and Windows · v1.0.0 · Other platforms

Then open the Marketplace in the app, search for Two-Sided Marketplace Launch, and click Install. It goes into your own files, and works offline from then on.

What it installs.

1

Pillar

1

Area

50

Projects

200

Starter tasks

🚀 Founding & Startups

Two-Sided Marketplace Launch

Launching a marketplace by solving the chicken-and-egg problem, seeding one side first and building trust between buyers and sellers.

  1. Atomic transaction and marketplace thesis
  2. Choosing the side to seed first
  3. Drawing a tight launch boundary
  4. Defining liquidity and its launch target
  5. Supply-side interviews on why sellers would list
  6. Demand-side interviews on where buyers search today
  7. Concierge matching test run by hand
  8. First take rate and fee model
  9. Marketplace terms and seller agreement with a lawyer
  10. Marketplace payments and payout provider choice
  11. Weekly liquidity review
  12. Supply onboarding pipeline
  13. Listing quality standards and delisting rules
  14. Trust and safety incident queue
  15. Leakage and off-platform deal watch
  16. Supply and demand balance by zone
  17. Reviews and ratings health check
  18. Disputes and refunds handling routine
  19. Top seller cohort calls
  20. Fraud signals monitoring
  21. Reading how marketplaces solved the cold start
  22. Network effects and defensibility in marketplaces
  23. Marketplace metrics vocabulary and definitions
  24. Search ranking and matching basics
  25. Selling to supply on the phone and in person
  26. Running a seller community
  27. Platform rules on worker status, tax and consumer law
  28. Single-player tool that brings supply in
  29. Hard-side incentives and earnings guarantees
  30. Managed versus open marketplace model
  31. Who sets the price on the platform
  32. Listing page and profile upgrade
  33. Fixing failed searches and zero-result queries
  34. Shortening time to first transaction for new buyers
  35. Second city or category expansion criteria
  36. First hundred live listings before demand opens
  37. Opening demand in the seeded niche
  38. Thousand-transaction retrospective
  39. In-person seller recruitment day
  40. Launching the second market
  41. Launching a B2B marketplace with procurement buyers
  42. Local services marketplace with vetted providers
  43. Peer-to-peer rental marketplace with damage cover
  44. Marketplace for a small island or thin market
  45. Solo founder running marketplace operations
  46. Liquidity evidence pack for seed investors
  47. Buyer and seller cohort retention analysis
  48. Surge and dynamic pricing mechanics
  49. Multi-tenanting sellers and competitive defence
  50. Buyer protection guarantee programme

Where it starts.

Each project arrives with its purpose, milestones and first tasks written out. Here is how the first three read.

Atomic transaction and marketplace thesis

Every marketplace rests on one repeatable unit: a dog walk booked, a pallet of produce sold, a shift filled. Naming that unit, who is on each side of it and why it is broken today gives the founding team one sentence to test every feature, fee and hire against.

First tasks

  • Write the single transaction your marketplace will match in one sentence
  • Describe how buyers and sellers complete it today and what it costs them
  • List three reasons a marketplace beats a simple directory for this
  • Review the thesis with your co-founder and date it

Choosing the side to seed first

Most marketplaces have one constrained side whose presence pulls the other in: drivers before riders, hosts before guests, suppliers before procurement teams. Deciding which side is harder to win, and committing to it for the first months, stops the team splitting thin effort across both.

First tasks

  • Score buyers and sellers on scarcity, acquisition cost and dependence
  • Talk to two marketplace founders about which side they seeded first
  • Write the time split between the two sides for the first 90 days
  • Agree the evidence that would make you change the seeded side

Drawing a tight launch boundary

Liquidity is local: a thousand listings spread across a country feel empty, while eighty in one neighbourhood or one profession feel busy. Drawing the smallest boundary where a buyer can reliably find a match lets you reach density with a founder's budget.

First tasks

  • List three possible launch boundaries by place, category or community
  • Estimate buyers and sellers inside each from public data or groups
  • Choose one boundary and write its edges on a single page
  • Set up a waitlist form for people outside the boundary

Make it yours.

Install Two-Sided Marketplace Launch, then tell Aurum the date you're aiming for. It checks whether the plan fits the weeks you actually have.

Free · Mac (Apple silicon) and Windows · v1.0.0 · Other platforms

Blueprints are general information to help you organise your own work. They are not medical, financial, legal or other professional advice. See the Terms.