Assessing Market Competition When Buying a Business: My Pre-Offer Playbook

A market competition assessment for a business acquisition is a structured pre-close analysis of the target’s competitive position — market share, direct and indirect rivals, defensible moat, customer alternatives, and industry forces — used to price the deal, stress-test the growth thesis, and decide whether to buy at all. Unlike a marketing-plan competitor scan, an acquirer’s assessment feeds directly into valuation, deal structure, and the post-close playbook. If the target can be flanked in 18 months by a better-capitalized rival, that’s a discount at minimum and a walk-away at worst.

Look, I’ve done 300+ deals across 30 years, and the ones that made me the most money were never the ones with the prettiest P&L. They were the ones with the strongest position inside a market I understood. Cash flow tells you what the business earned last year. Competitive position tells you whether it’ll still be earning it three years after you sign.

Here’s exactly how I map competition before I write a single offer — the same framework we drill inside Dealmaker Academy.

Why Competitive Position Is a Valuation Input, Not a Marketing Exercise

Most sellers hand you a competitor list they wrote for their sales team. Useless. That list tells you who they lose deals to. It doesn’t tell you who’s about to eat their lunch, who’s undercapitalized and vulnerable to a bolt-on, or which customers are one bad quarter away from switching.

Your job as the buyer is to answer three questions before you sign an LOI:

1. How defendable is today’s revenue? Can the current customer base be poached in 12 months?
2. Where does growth actually come from? New customers, new geographies, new products — and who else is fishing that pond?
3. What’s the exit look like in 3 to 7 years? Is this a category buyers will pay a premium multiple for, or a shrinking niche?

Every H2 below feeds one of those three answers.

Market Share Analysis: Sizing the Pond Before You Buy the Boat

Market share analysis for an acquisition target quantifies what slice of the total addressable market the business owns today, whether that share is growing or shrinking, and how much room there is to grow without triggering a competitive response. Small share in a big growing market is a green light. Big share in a shrinking market is a coffin dressed up as a bargain.

Run these five numbers before you offer:

1. Total addressable market (TAM). Pull IBISWorld, Statista, or the trade association report. Get a dollar number for the category in the geography the business actually serves.
2. The target’s revenue as a percent of TAM. Under 1% means room to grow without waking anyone up. Over 25% means you’re already the whale — expect fresh entrants and price pressure.
3. 3-year market growth rate. Flat or declining markets require you to take share from someone. That’s a knife fight, not a growth plan.
4. Target’s share trend. Ask for revenue by year. Is the business gaining share, holding, or bleeding? A shrinking share in a growing market means the competition is doing something better.
5. Concentration of the top 3 players. If three competitors control 70%+ of the market, the target is a niche player and needs a defensible edge to survive.

Deep dive on the numbers here: how we evaluate acquisition targets end-to-end.

Competitor Mapping: Who Actually Competes for This Business’s Customers

Competitor mapping identifies every direct rival, indirect substitute, and adjacent player capable of taking a customer or a supplier away from the target — then ranks them by threat level and by opportunity for a future bolt-on. Sellers know their direct competitors. They rarely see the substitutes. That blind spot becomes your due diligence advantage.

Build the map in four passes:

1. Direct competitors. Same product, same customer, same geography. Name them, get revenue estimates, get employee counts off LinkedIn.
2. Indirect competitors. Different product, same customer job-to-be-done. If you’re buying a commercial HVAC installer, indirect is the equipment manufacturer selling direct-to-facility.
3. Substitutes. The customer solves the problem a different way. Software eating a service. DIY eating a done-for-you offering. This is where category disruption hides.
4. Bolt-on candidates. Smaller competitors you could buy at a lower multiple and roll into the parent. That’s multiple arbitrage — buy at 3x, integrate, sell the combined entity at 6x.

Every name on that map gets one line: what they do better than the target, what they do worse, and what would happen if they doubled marketing spend tomorrow.

Moat and Defensibility Check: What Stops the Next Competitor

A moat is the specific, structural reason a competitor can’t simply copy the business and take its customers — switching costs, network effects, licensed IP, exclusive supplier contracts, scale economics, or a brand customers actively prefer. No moat means every dollar of profit is under attack. Weight moat heavy. It’s the difference between a business you own for 5 years and a business you own for 25.

Score the target on these six defensibility markers:

1. Switching costs. How painful is it for a customer to leave? Contracts, integrations, retraining, data migration. Sticky customers command higher multiples.
2. Exclusive contracts or licenses. Long-term supplier agreements, regulatory approvals, geographic exclusivity. These are legal moats and they show up on the balance sheet.
3. Brand and reputation in the niche. Google reviews, industry awards, referral rates. If the phone rings because of the name over the door, that’s a real asset.
4. Scale advantages. Buying power, route density, fixed-cost leverage. Big fish in a niche pond usually deserves the higher multiple.
5. Proprietary IP or process. Patents, trade secrets, a system nobody else runs. Verify — sellers overclaim this constantly.
6. Location or physical assets. Real estate, permits, capacity nobody else can replicate in the local market.

If you can’t check three of these six, the business is a commodity and it should be priced like one.

Customer Alternatives: What Would Make Your Best Customer Leave

The customer-alternatives analysis interviews the target’s actual customers to learn who else they considered, what they’d switch to, and what would push them to switch tomorrow — the single fastest way to expose weaknesses the seller either doesn’t know or won’t say. The CIM will never tell you this. The customers will, if you ask.

Run the interviews under NDA if you need to. Five customers, ten questions, one hour each. What you’re listening for:

1. Who else did they evaluate? Names competitors the seller never mentioned.
2. Why did they choose this business? Price, service, reputation, personal relationship with the owner. If the answer is the owner, you have an owner-dependency problem, not a business.
3. What would make them switch? A 10% price drop from a rival. A missed delivery. The retirement of a key salesperson. Cheap intel on where the wall is.
4. Have they been contacted by competitors recently? Reveals which rivals are actively hunting the customer base.
5. Do they see this business surviving 5 years? Customer confidence is a leading indicator no financial statement will show you.

The pattern that shows up across five interviews is the truth. Anything one customer says is an anecdote. Three customers saying the same thing is a red flag or a green light.

Industry Forces Framework: Porter’s Five, Adapted for the Buyer’s Side

The five-forces framework, applied to an acquisition rather than a strategy plan, evaluates supplier power, buyer power, threat of new entrants, threat of substitutes, and rivalry intensity — with each force scored for how it will squeeze margins during the years you own the business. Corporate strategists use this to plan. Dealmakers use it to price. Every force that scores high shaves margin. Every force that scores low protects the multiple you’ll eventually sell at.

Score each force 1 to 5 for the target’s specific market:

1. Supplier power. One supplier controlling inventory or pricing? Score high, subtract from the offer. Multiple interchangeable suppliers? Score low.
2. Buyer power. A handful of customers over 15% of revenue each? They dictate terms. Diversified customer base with no single account over 10%? You keep pricing power.
3. Threat of new entrants. Low capital requirements, no regulatory barrier, easy customer acquisition? Expect competition to double in 24 months.
4. Threat of substitutes. Software replacing your service. Insourcing replacing your product. Category getting disintermediated. Weight this heavy.
5. Rivalry intensity. Price wars in the trade press. Competitors advertising discounts. Consolidation happening around you. High rivalry compresses everyone’s margin.

Total the five scores. Below 12 out of 25 signals a market where you can operate with margin cushion. 15 to 20 is workable with the right terms. Above 20 and you’re paying for a business that will be squeezed the entire time you own it.

Competitive Red Flags That Kill the Deal

Competitive red flags are conditions in the market or in the target’s position that make the business fundamentally uninvestable regardless of how strong the current P&L looks. Some can be structured around with earnouts, holdbacks, or a bigger seller note. Others mean walk. Learn the difference or the deal will teach you.

The seven red flags I’ve watched sink deals:

1. Customer concentration above 25% with one account. That’s not a business. That’s a contract dressed up as a business.
2. A single competitor consistently taking share. If the last three years show a rival growing 20%+ while the target is flat, you’re buying the loser.
3. A pending technology shift the target hasn’t adapted to. Category getting eaten by software or automation, and the seller is still selling yesterday’s approach.
4. Regulatory changes on the horizon. New rules that raise cost of service or restrict who can operate. Check trade associations, not the seller.
5. The seller’s key salesperson leaving. Especially if that salesperson owns the customer relationships. Get retention agreements before close. Not after. Before.
6. A platform dependency you can’t replace. Business survives because of one Amazon relationship, one Google account, one distributor. That platform can change terms overnight.
7. A well-capitalized new entrant. A PE-backed roll-up entering the market. A publicly traded competitor building a division. If the war chest across the street is 10x the target’s, you’re not competing — you’re being priced out.

Throw the red flag on any of these and go back to the seller for a structural fix or a lower price. If neither is available, walk. There’s always another deal.

Deep Dives: The Full Competitive Assessment Library

The child articles under this hub break every step of the assessment into an operator-grade walkthrough — market research techniques, competitor profiling templates, defensibility scoring, and the exact questions we use in customer interviews. Work them in order or pull the one you need for the deal on your desk.

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How Competitive Analysis Feeds the Offer

The output of this assessment goes straight into the deal. Strong moat plus low rivalry? Pay closer to asking, protect the terms. Weak moat plus high rivalry? Discount hard, load the deal with a seller note and an earnout tied to customer retention. Focus on terms over price — a seller-financed deal at 90% of asking with a 5-year note beats an all-cash deal at 70% every day of the week.

Competitive weaknesses justify a lower purchase price. Industry threats justify indemnification, escrows, and holdbacks. Opportunities you spot in the competitive landscape? Keep those to yourself — never hand the seller a reason to raise the asking price.

Frequently Asked Questions

What is market competition assessment in a business acquisition?

Market competition assessment is a pre-close analysis that maps the target’s competitive position — market share, direct and indirect rivals, defensible moat, customer alternatives, and industry forces. Unlike a marketing-plan competitor scan, an acquirer’s assessment feeds directly into valuation, deal structure, and the post-close growth plan. It answers whether today’s revenue is defendable, where future growth actually comes from, and what the business looks like at exit.

How do I analyze the competition before buying a business?

Work six steps in order: size the total addressable market, map direct and indirect competitors plus bolt-on candidates, score the target’s moat on switching costs and defensibility, interview the top five customers about alternatives, run a five-forces analysis on the industry, and log every competitive red flag. Every score and finding feeds either the offer price or the deal structure.

What’s the difference between competitor research for marketing and for acquisition?

Marketing competitor research asks “how do we win the next customer?” Acquisition competitor research asks “will this business still have customers in five years, and what should I pay for that certainty?” The acquisition version weighs structural defensibility, customer stickiness, and industry consolidation risk far heavier because it feeds a valuation, not an ad campaign.

How much market share is enough for an acquisition target to be attractive?

There is no single right answer, but the pattern I look for is a target under 5% share in a growing category with a specific defensible edge — that gives room to grow without waking up the giants. If the target holds over 25% share in a mature market, expect fresh entrants and margin pressure. Score share against market growth rate, not in isolation.

How do I evaluate a competitive moat during due diligence?

Check six markers: switching costs, exclusive contracts or licenses, brand and reputation in the niche, scale advantages, proprietary IP or process, and location or physical assets nobody else can replicate. Score each. If you can’t check three of the six, the business is a commodity and should be priced like one. Verify every seller moat claim — this is the category sellers overclaim on most.

What is the biggest competitive risk most acquirers miss?

Substitute threats. Buyers hunt the direct competitor list the seller hands them, then get blindsided by a software product, a DIY option, or an insourcing trend that eats the category from a different angle. If the customer’s job-to-be-done can be solved a different way tomorrow, the target’s current market share is a lot less defensible than the P&L makes it look.

Should I interview the target’s customers before I buy the business?

Yes. Under NDA if you need to, but do the interviews. Five customers, ten questions, one hour each. You will learn more about the true competitive position from those five conversations than from every industry report you can buy. The pattern across the five is the truth — one customer is an anecdote, three saying the same thing is a signal.

How do I use competitive analysis to negotiate the deal?

Weaknesses justify a lower price. Industry threats justify indemnification, escrows, holdbacks, and larger seller notes. Customer-concentration risks justify earnouts tied to retention. Keep the opportunities you spot to yourself — never hand the seller a reason to raise the asking price. Focus on terms over price. Structure protects you when the market shifts after close.

Where can I learn to run a competitive assessment on live deals?

Dealmaker Academy walks the full pre-offer assessment on real acquisition targets with Carl Allen and the coaching team. The Protégé Community is where active dealmakers pressure-test their competitive maps with each other before writing offers. Both are built for people running deals, not people reading about deals.

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Next move: run this six-step assessment on the next deal on your desk before you send another offer. If the numbers hold, structure the terms accordingly. If they don’t, walk and originate the next one — that’s the numbers game. Book a coaching call to walk through the competitive map on a specific target with the team.