Afraid Niching Down Will Shrink Your Firm? Run the Numbers First.

Almost every founder I talk to about positioning says some version of the same thing: “If I narrow down, I’ll lose business.”

I understand the fear. When your professional services firm runs on referrals, every inbound call feels precious and your market position feels tenuous. Telling the market “this is exactly what we do” feels like telling half your pipeline to call someone else.

But that fear rests on a calculation most founders have never actually run. My own experience is that the cost of staying broad has gone up, because the way buyers find firms has changed. They can more easily narrow their searches, and so they do. The reality for most business owners is that AI is niching down for you.

Should You Niche Down? Three Fears, Three Answers

Three worries come up in almost every conversation.

• The market will be too small. If I only serve one type of client, I’ll run out of them.
• I’ll turn away work I could have won. The referral that doesn’t fit the niche will go somewhere else.
• I’ll get boxed in. What if the niche dries up, or I outgrow it?

Each one sounds reasonable. Each one has an answer.

Fear 1: “The Market Will Be Too Small.”

This is the fear that stops most founders, but don’t worry, it’s a magic math formula and easy to test. I promise, you don’t need a consultant or a market research budget. You just need three numbers and a spreadsheet.

How to calculate your market size

Buyers who fit × share who buy in a given year × average engagement value = annual addressable revenue

This is a simple version of what investors call total addressable market (TAM): the market size of your niche. Then compare that number to your revenue goal.

Here is an example. Say you run an executive coaching practice and you want to focus on leadership teams at middle-market companies that were just acquired by private equity. New owners, new expectations, often a new CEO or CFO. That is a specific buyer with a specific problem.

• Buyers who fit: PitchBook counted roughly 4,000 US middle-market PE deals in 2025. That is 4,000 companies a year entering exactly the situation you serve, before you count the companies already sitting in PE portfolios.
• Share who buy: Be conservative. Assume only 1 in 10 invests in leadership coaching in the first year. That is 400 buyers.
• Average engagement: Say $75,000 for a leadership team engagement. That is $30 million a year in new-deal demand alone.

A $2 million practice needs about 27 of those engagements. That is less than 7% of the buyers who buy in a year, and it ignores repeat work, add-on acquisitions, and the thousands of companies already in the portfolio.

That is not a small niche. That is a whole business with room to grow.

Now go smaller. Say you run a three-person PR firm that works only with wellness professionals launching a book: doctors, therapists, nutritionists, trainers. Most founders would call that too narrow to build a business on.

• Buyers who fit: An estimated 15,000 self-help books are published in the US every year. Assume only a third are written by wellness professionals. That is 5,000 authors a year.
• Share who buy: Assume 8% hire an outside PR firm for the launch. That is 400 buyers.
• Average engagement: Say $20,000 for a launch campaign. That is $8 million a year in demand.

A $500,000 firm needs 25 of those clients. That is about 6% of the buyers each year, before counting the authors who come back for their second book.

A useful rule of thumb: if hitting your revenue goal requires winning less than about 10% of the buyers in your niche each year, the niche is big enough. If it requires 30% or more, widen one dimension. Add a second city. Add an adjacent industry. Add a second buyer role. Don’t retreat all the way back to “we serve leaders.”

Then stress test it. Cut your buy rate in half and run it again. If the business still works, you have your answer.

Fear 2: “I’ll Turn Away Work I Could Have Won.” Trust Me, You Weren’t Winning It.

We tracked this at my last firm and found out, painfully, that we lost business outside our niche every time.

That wasn’t the expensive part. The expensive part was how close we got. We made the shortlist. We wrote the proposals. We flew to the final meetings in whatever city they were in. And then the work went to the firm that did that one thing for a living.

Every one of those near misses cost hours. Partner hours, proposal hours, follow-up hours. Hours we could have spent going after business we were built to win.

That is the hidden cost of staying broad. You don’t just lose the off-niche deal. You pay for the privilege of losing it.

Buyers behave this way for a reason. When the stakes are high, buyers don’t hire the firm that can do a lot of things. They hire the firm that has solved their exact problem before. A specialist answers that question before the first call. A generalist spends the whole sales process trying to.

Fear 3: “I’ll Get Boxed In.” Not If You Have a Plan.

A niche is a starting point, not a life sentence. The firms that grow out of a niche do it deliberately, in concentric circles. You win the first ring, then expand into the ring right next to it, where your reputation, your proof, and your point of view still carry.

Take the coaching example. Leadership teams at newly PE-acquired companies is ring one. Ring two might be portfolio companies preparing for an exit. Ring three might be founder-led companies getting ready to take on PE money. Each ring is a short step from the last, and each one borrows credibility from the ring before it.

The timing matters. Expand from a position of strength, once you have built a brand in the first niche and buyers there know your name. Expanding before that just puts you back where you started: broad, vague, and hard to recommend.

Boxed in is what happens to firms that pick a niche and stop thinking. It doesn’t happen to firms that pick a niche and plan the next ring.

Specialist vs. Generalist: Why AI Search Raises the Stakes

Here is what has changed. Buyers now build their shortlist in ChatGPT, Claude, Perplexity, and Google AI Overviews before they contact anyone. The 6sense 2025 B2B Buyer Experience Report found that 94% of buying groups rank their preferred vendors before they reach out, and 77% buy from their day-one favorite.

So the decision about who makes the list is happening in a place you can’t see, based on sources you don’t control.

And AI does not reward broad. We ran 32 real buyer questions about executive coaching through ChatGPT, Perplexity, Claude, and Gemini, 384 answers in total. On the broad question, “best executive coaching firms,” a handful of national giants took almost every slot. On the specific questions, executive coaching for tech founders in San Francisco or for PE-backed leadership teams in New York, the giants faded and a small set of boutiques took their place.

That is the whole argument in one data set. A generalist competes against Korn Ferry on the broad search and loses every time. A specialist competes against three boutiques on the specific search and can win.

AI tools pattern-match. If your website says you help clients with “strategy, growth, leadership, and change,” the model cannot place you. And if it cannot place you, it will not recommend you.

How to Get Found in AI Search for Exactly What You Do

At Retrevia, the first question we answer for every firm is what it should be known for: the exact problem your best clients pay to solve, in the words they type. Everything else builds on that.

1. Write the one sentence. Name the buyer, the problem, and the situation. Use the words your buyers use, not firm jargon. “Executive coaching for leadership teams in their first year after a PE acquisition” beats “leadership development for high-performing organizations.”
2. Put it everywhere AI reads. Your website, your LinkedIn company page, every bio, every directory listing. Same firm name, same description. Consistency is how AI confirms who you are.
3. Publish answers to the specific questions buyers ask. If your buyer types “best executive coaching for newly PE-acquired leadership teams,” you want a page on your site that answers that question with real experience and a clear point of view.
4. Earn third-party proof inside your niche. In our benchmark, roughly 60% of the sources AI cited in its responses were from outside a firm’s own website, including directories, marketplaces, “best of” lists, peer networks, and publications. For firms that are not yet household names, that outside validation is the realistic path onto the shortlist.

Find out where you stand. Somewhere right now, your ideal buyer is asking Google, ChatGPT, or Claude who to hire and getting a list that does not include you. Our Baseline Diagnostic shows you where you appear, where you don’t, and what to fix first.