Most B2B founders spend months selling to the wrong people. Not because their product is bad. Because they never figured out who the right buyer actually is.
A founder I advised spent $20K a month on ads for three months. LinkedIn Ads, Google Ads, retargeting campaigns. His product was solid. The landing page looked professional. The ads were getting clicks.
He got zero customers.
When I looked at his targeting, the problem was obvious. He was running ads to “B2B companies.” That was his audience definition. No industry. No company size. No specific role. No specific problem. He was spending money to reach everyone, which meant he was reaching no one who cared.
I told him to stop the ads. He pushed back. “But we need pipeline.” I told him he didn’t have a pipeline problem. He had a targeting problem. And no amount of ad spend would fix it.
Here is the bottom line.
Before you build pipeline, before you write messaging, before you run a single ad, you need to know exactly who your buyer is. Not a guess. Not an assumption. A profile built from real conversations with real people who have the problem your product solves.
This guide covers the full process of finding your right buyer, from defining your first target when you have no customers, to refining it as you grow, to recognizing when it needs to change.
The cost of getting your buyer wrong
Getting your buyer wrong doesn’t just waste ad budget. It breaks everything downstream.
Your messaging sounds generic because you’re writing for a broad audience instead of a specific person. Your sales calls go nowhere because you’re talking to people who don’t have the problem you solve. Your pipeline fills up with prospects who will never close. Your sales team gets frustrated. Your close rate drops. You blame the product, the market, or the team. But the real problem started earlier. You targeted the wrong people.
I’ve seen this pattern repeat across dozens of startups. The fix is always the same. Go back to the beginning and figure out who your buyer actually is.
Start with one segment, not a market
The biggest targeting mistake founders make is going broad. They define their buyer as “SaaS companies” or “marketing teams” or “small businesses.” That’s not a buyer. That’s a category.
Your first buyer definition needs to be narrow. One industry, one company size, one role, one problem.
A founder I worked with sold a project management tool. He could have targeted any company that manages projects. Instead, I told him to pick one segment. He chose creative agencies with 10 to 25 employees. One type of company, one size range, one specific pain point (missed client deadlines because of scattered communication).
That narrow focus changed everything. His outreach became specific. His messaging hit the exact pain point. His demo showed exactly how the product solved their problem. He closed his first 5 customers in 6 weeks.
Going narrow feels risky. Founders think they’re leaving money on the table. The opposite is true. Going narrow is how you find your first wins. Paul Graham wrote about this same principle in Do Things That Don’t Scale, where the best startups win by focusing intensely on a small group first. You can expand later once you have proof.
Talk to buyers before you build anything else
Most founders define their buyer on paper. They sit in a room, discuss who they think the buyer is, and write a profile based on assumptions. Then they build messaging, run campaigns, and hire salespeople based on that profile.
Three months later, nothing is working, and nobody knows why.
The fix is simple. Talk to people before you assume anything.
Find 15 to 20 people who match your initial guess of who the buyer might be. Get them on a call. Ask them about their problems. Not your product. Their problems.
“What’s the biggest pain point in your current process?” “How are you handling it today?” “What have you tried that didn’t work?“
Listen for patterns. If 12 out of 15 people mention the same problem using the same words, you’ve found something. If every person describes a different problem, your segment is too broad. Narrow it down and try again.
The exact words your buyers use become your messaging. Not your interpretation of what they said. Their actual phrases. This is the foundation of everything that follows.
For a step-by-step process on running these conversations before you have any customers, read How to Define Your ICP When You Have Zero Customers.
Five signals that tell you who your buyer is
After enough conversations, patterns start to emerge. Here is what to look for.
- They describe the problem without you prompting them. When someone brings up the pain point on their own, unprompted, you’ve found a real problem. Not a hypothetical one.
- They’re already spending money trying to solve it. If they’re paying for a competitor, using a workaround, or hiring people to manage the problem manually, the pain is real enough to pay for.
- They can make the buying decision. You’re talking to the right person if they have budget authority or direct access to whoever does. If every conversation ends with “I’ll have to check with my boss,” you’re targeting the wrong role.
- They match a repeating profile. After 10 to 15 conversations, you should see the same type of company and the same type of role coming up repeatedly. That’s your buyer profile forming.
- They tell other people about you. Early buyers who refer you to others are your strongest signal. They’re telling you which segment values your product enough to spread the word.
Your buyer is not your competitor’s buyer
One of the most common mistakes I see is founders copying their competitor’s targeting. They look at who the market leader is selling to and assume the same audience will work for them.
It won’t. Your competitor has different pricing, different features, different brand recognition, and a different stage of growth. What works for a company with 500 customers and a sales team of 20 won’t work for you with 5 customers and no sales team.
Your advantage as a startup is owning one narrow segment that your competitor is too big or too unfocused to serve well. Find that segment. Own it. Build your reputation there first.
I wrote a detailed breakdown of this trap in Why Your Competitor’s ICP Is Not Your ICP.
How to refine your buyer profile with real data
Your first buyer definition is a hypothesis. Your first 10 customers turn it into a fact.
After you close 10 deals, look at the data. Not what you planned to sell. What actually happened.
Look at which companies bought and which ones didn’t. Look at which deals closed fast and which dragged on for months. Look at which customers stayed past 90 days and which churned. Look at who referred you to someone else.
The answers to these questions sharpen your buyer profile in ways that no research or framework can. One founder I advised closed 10 customers and realized 7 of them were recruiting agencies. He hadn’t planned to focus there. But the data was clear. He narrowed his targeting to that one segment, rewrote his messaging, and doubled his close rate in the next quarter.
When your buyer profile stops working
Your buyer profile is not permanent. Markets shift. Products evolve. The segment that worked 6 months ago might stop converting today.
I’ve seen founders hold onto a buyer profile long after the data tells them it’s broken. Close rates drop. Pipeline stalls. Outreach gets ignored. But they keep targeting the same segment because “it worked before.”
The signals of a shifting buyer are specific. Your best-performing segment starts churning. New deals take twice as long to close. Prospects in your target segment keep saying “this isn’t a priority right now.” When you see these patterns, your buyer has changed and your targeting needs to change with it.
The connection between targeting and sales
Every sales problem I’ve diagnosed for founders traces back to targeting. Bad targeting creates bad messaging. Bad messaging creates bad conversations. Bad conversations create an empty pipeline.
When founders come to me saying “our sales process is broken,” I always start by asking who they’re selling to. More than half the time, the sales process is fine. The buyer is wrong.
If you’ve already built a sales process and it’s not working, check your targeting first. If you haven’t built one yet, get your buyer right before you start. The articles in my founder-led sales guide cover the sales side in detail, but it all starts here, with knowing who to sell to.
Frequently Asked Questions
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How many people should I talk to before defining my buyer?
At least 15 to 20 in your initial target segment. You need enough conversations to see patterns. If you talk to 5 people, you might get lucky and hear the same problem from all of them. But at 15, you’ll know whether the pattern is real or whether your segment is too broad.
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What if I have a product that works for multiple industries?
Pick one. Test it. Close 10 customers there. Then decide if you want to expand to a second industry. Trying to sell to multiple industries at the same time splits your messaging, confuses your positioning, and slows everything down. Narrow focus first, expansion later.
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How is this different from a buyer persona?
A buyer persona is a fictional profile based on research and assumptions. What I’m describing is a buyer profile built from real conversations and real deals. Personas are useful for marketing exercises. Profiles built on data are useful for closing deals.
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How often should I revisit my buyer profile?
Every quarter at minimum. Look at your last 10 deals. Who bought? Who churned? Are the patterns holding or shifting? If something changed, adjust. Holding onto a stale profile costs you months.
Finding the right buyer is the first step in fixing your go-to-market. Everything else, your messaging, your sales process, your pricing, only works if you’re talking to someone who actually has the problem you solve.
Start narrow. Talk to buyers. Let the data refine your targeting. Expand only after you’ve proven it works in one segment.
