The Groundwork blog
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Research-backed guides for founders and small business owners. Browse by topic or scroll through everything we have published.
How to Calculate Market Size: TAM, SAM, SOM Explained (2026 Guide)
TAM, SAM, and SOM are the three numbers every startup founder needs before launching or pitching investors. This guide explains each one clearly, shows you exactly how to calculate them, and walks through a full worked example.
How to Interview Customers the Right Way (The Founder's Complete Guide)
Most founders run customer interviews wrong and get polite lies instead of real insight. This guide shows you exactly how to ask the right questions and get the honest answers that tell you whether your idea is worth building.
How Much Money Do You Need to Start a Business? (2026 Guide)
The answer depends entirely on your business type. This guide breaks down real startup costs by business model, the hidden costs most founders miss, and how to calculate what you actually need.
Problem-First vs Product-First: Which Business Strategy Wins in 2026?
Most founders start with a product. Most businesses fail because of it. This guide breaks down the difference between problem-first and product-first thinking and which approach builds lasting businesses.
10 Questions Every Startup Must Answer Before Building Anything
Most startups fail because founders build before they validate. These 10 questions will tell you whether your idea is a real business before you spend a dollar building it.
Why Most Businesses Fail Before They Start (2026 Data)
More than 1 in 5 businesses fail in their first year. This guide breaks down the five real reasons most businesses fail and exactly what to do about each one before you launch.
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