How to do market research for a business plan

Investors and lenders do not fund hunches. They fund plans backed by evidence: a defined market, real customer signals, and an honest read on competitors. This guide walks through how to assemble that evidence for the market analysis section of a business plan.

If you are still deciding whether the idea itself is worth pursuing, that is a different job than the one covered here. This piece assumes you have already committed to the idea and need to document the market case inside an actual business plan.

For the broader discipline behind every step below, see our guide to what market research is.

A business plan reviewer skims for evidence, not adjectives. Use the checklist below to see what belongs in each part of your market analysis and where that evidence should come from. Treat it as a packing list, not a word count target.

Business plan market research works best when each row above has at least one source behind it, not just an assertion. This checklist also overlaps with other common market research use cases, so the evidence you gather here keeps working after the plan is written.

Before you can size a market, you need to define it: the customer problem you solve, the category you compete in, and the geography you serve. A vague definition produces a vague number that reviewers will question immediately. Write one sentence that states who you serve, what problem you solve, and where, since that sentence is the foundation for how to research a market for a business plan.

Pull your market definition evidence from a mix of sources:

Census data tells you how many people could qualify. Your own survey tells you how many of them actually feel the problem you are solving, which is evidence a sizing number alone cannot provide.

A customer analysis section needs more than a demographic sketch. It needs to show who buys, why they buy, and what triggers the purchase decision. This is where original survey or interview data earns its place in the plan.

Useful segment evidence typically covers:

A short customer survey, even one sent to 50 people in your target segment, produces more defensible evidence than an assumed persona. Reviewers can tell the difference between a persona built on guesses and one built on responses. Our guide to identifying and reaching your target market covers how to find those respondents.

A competitive analysis section often lists competitors without saying anything a reviewer could not find through a quick search. Strengthen it by pairing your own competitor list with evidence of how your target customers actually perceive those competitors. That perception gap is often more persuasive than the list itself.

Build competitor evidence from a few angles:

Our competitor research survey template is built for exactly this kind of perception check. Use it to validate the competitive gaps you plan to describe, rather than asserting them.

A market size number on its own does not prove demand. A reviewer wants to see that real people in your target market actually want what you are building, not just that a large addressable market exists on paper. Demand evidence and sizing evidence answer two different questions.

Useful demand evidence includes:

Standard sizing sources, such as industry reports, trade data, and analyst estimates, are useful for a top-down number but carry their own assumptions and update cycles. Your own survey adds a bottom-up check grounded in real responses from your target audience. Neither source replaces the other, so a credible market analysis uses both.

Before you treat any number as final, check whether your sample size actually supports it. A sample size calculator and a margin of error calculator can show how much confidence your evidence earns. That number belongs in your limitations section, covered next.

Every nonprobability survey sample has limits on how far its results generalize, and a credible business plan says so plainly. This is not a weakness to hide, since it is a sign that you understand your own evidence. Reviewers trust plans that are specific about what the data does and does not prove.

A limitations note for your market analysis section should disclose:

A single sentence often does the job: "This estimate is based on a 200 person survey of our target segment and should be read alongside third party market sizing, not in place of it." That framing keeps your evidence honest without undercutting it.

SurveyMonkey features will not size your market or write your business plan, but they can make the original evidence behind it faster to collect. The built in panel access makes it easier to reach respondents when you do not have your own list to survey. The AI analysis features help you pull themes out of open ended responses instead of reading every answer by hand.

For guided concept, price, and message testing studies beyond a single survey, SurveyMonkey LaunchPad packages that methodology into a guided setup. For the step by step methodology behind any of these studies, read our full marketing research process guide. It covers how to plan, field, and analyze a study from problem definition through action, in more depth than this checklist alone can.