ValidationProven Pattern

Conduct 50-100+ customer conversations before building

Extensive upfront research prevents building the wrong product. Spend 1-3 months on user research and customer conversations before writing code. For hard problems, lawyers and investors offer surprisingly useful 30-min calls for free.

When to use

Before committing to build any product. Especially critical for B2B, regulated industries, or complex problem spaces.

Don't do this

Jumping straight into building based on assumptions or a few casual conversations.

6 Founders Who Did This

1
Leadmore AIby Richard Wang

Conduct 50-100 customer conversations before writing any code

Result:Results not specified in source
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2
Morning Brewby Alex Lieberman

Discovered unmet need through dozens of mock interview conversations with business students, consistently hearing they read WSJ out of obligation, not interest

Result:Validated demand for engaging business news before writing a single newsletter, leading to rapid early adoption
3
First Round Capital Advisoryby Jeanette Mellinger

Developed 'mini research sprint' framework of 5-8 highly focused conversations with narrow psychographic targeting, used across dozens of First Round portfolio companies

Result:5 focused interviews produce more conviction than 50 unfocused conversations - adopted as standard practice for early-stage customer discovery at First Round
4
Mercuryby Immad Akhund

Conducted 90 expert interviews over 4 months across three persona types: fintech founders, financial services lawyers, and fintech investors. Used these conversations to validate the opportunity, understand regulatory requirements, and choose the sponsor bank model over an independent charter.

Result:Research revealed the optimal business model (sponsor bank), connected Akhund with the right partners, and avoided the common pitfall of pursuing a bank charter which had killed many fintech startups
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5
Vantaby Christina Cacioppo

Spent 6 months on customer interviews and validation before writing code, testing multiple hypotheses through conversations with CTOs and founders

Result:Identified SOC 2 compliance as the winning pain point after failed experiments with security checklists and questionnaire responses
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6
Levelsby Sam Corcos

Sam Corcos conducted thousands of customer development calls, interviewing nearly every beta customer at midpoint and end of their program. The company treated each conversation as a learning opportunity, prioritizing customer feedback over scaling operations

Result:Deep customer understanding drove 500-600 product releases in a year and helped identify that podcasts were the primary discovery channel for CGM interest
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