"Business Broker or M&A Advisor: Which One Do You Need?"

The two professionals most commonly hired to sell a private company are not interchangeable. A business broker and an M&A advisor serve different deal sizes, reach different buyers, and run different processes at their core. Hiring the wrong one does not just cost money in fees. It can cost you a sale, or leave significant value on the table.

Here is how to tell which one you need.

What a Business Broker Actually Does

A business broker works the Main Street and lower-middle market, typically handling businesses with enterprise values from about $500,000 up to $5 million. The model is built around marketplace listings. Your broker creates a confidential business review (a 10-to-20-page summary), lists the business on platforms like BizBuySell and BizQuest, and waits for qualified buyers to inquire.

That is not a criticism. It is the appropriate model for the buyer you will attract at this size. Most buyers of businesses under $2 million are individuals, often using an SBA 7(a) loan. They find deals by browsing listings. Broad marketplace exposure is how you reach them.

A broker typically carries 15 to 30 active listings at once. That breadth is part of the model. Buyers come to those platforms specifically to shop, so passive exposure works. What it does not do is create the competitive tension that drives prices above the asking floor.

Brokers usually charge a flat commission, commonly 10% on deals up to $1 million and often negotiable toward 8% on larger ones in their range. Most do not charge a retainer at the Main Street level, though some charge a small upfront work fee (typically $2,000 to $5,000) to cover the valuation and marketing materials.

What an M&A Advisor Actually Does

An M&A advisor, sometimes called a lower-middle-market investment banker or intermediary, handles deals from roughly $5 million up to $100 million in enterprise value, with the overlap zone sitting somewhere between $2 million and $5 million depending on the business.

The process is different in kind. Instead of listing, an M&A advisor runs a controlled, confidential outreach campaign. They build a targeted list of 30 to 150 potential buyers (private equity platforms, strategic acquirers, family offices, search funds) and contact them directly. Buyers sign NDAs before seeing anything meaningful. There are multiple rounds of bids. The advisor manages all of it so you can keep running your business.

This process takes more time to prepare and more work throughout, which is why M&A advisors carry only four to eight active engagements at a time. The depth of attention per deal is higher because it has to be.

M&A advisors charge a monthly retainer, typically $5,000 to $15,000 per month, almost always credited against the success fee at closing. The success fee itself is usually calculated on a tiered formula (explained in detail in our fee guide) that works out to a lower percentage than a broker's flat rate on larger deals.

Where the Dividing Line Sits

There is no single bright line, but a practical framework is this:

Enterprise Value	Typical Advisor	Why
Under $2M	Business broker	Buyers are individuals with SBA loans; listing exposure is the right channel
$2M to $5M	Either, depending on the business	Buyer pool and business characteristics decide it
$5M to $50M	M&A advisor	Institutional buyers expect a managed, competitive process
$50M and up	Investment bank	Full auction; institutional-grade marketing and buyer coverage

The real driver is not enterprise value alone. It is buyer type. If the most likely buyer for your business is an individual using a bank or SBA loan, a broker is the right match. If the most likely buyers are private equity platforms, strategic acquirers, or family offices writing equity checks, you need someone who speaks their language and runs the process they expect.

Windsor Drake, an M&A advisory firm, has written about the approximately $3 million EBITDA level as a practical inflection point where buyer composition shifts from individuals to institutional capital. Above that level, EBITDA multiples (4x to 8x) replace SDE multiples (2x to 4x) as the valuation language. A business generating $2.5 million in EBITDA might be valued at $8.4 million using an SDE framework at 3x, and $12.5 million using an institutional EBITDA framework at 5x. That difference does not come from a better broker. It comes from reaching a different buyer universe.

How the Fee Structures Differ

Broker fees are straightforward: a flat percentage of the sale price, usually 10% with a minimum of $15,000 to $25,000. On a $1 million sale, that is $100,000. On a $2 million sale with a slightly negotiated 8% rate, it is $160,000. No retainer is typical at Main Street, though some brokers charge a small upfront work fee.

M&A advisor fees have two parts: a monthly retainer and a success fee on close. The success fee is most often calculated using a Double Lehman formula (10% of the first $1 million, 8% of the next, 6% of the third, 4% of the fourth, and 2% on anything above $4 million). On a $5 million deal, that is $300,000. The retainer, which might run $5,000 to $10,000 per month over a 9-to-12-month process, is credited against that at close, so you do not pay it twice.

M&A advisor fees as a percentage of enterprise value decline as deal size grows. The blended effective rate on a $15 million deal typically works out to around 3% to 4%.

What Happens If You Hire the Wrong One

Hiring a broker for a $10 million business does not usually result in a failed sale. It results in a lower price. Brokers marketing larger deals typically have access to fewer institutional buyers, and institutional buyers will not take a listing-based process seriously when they expect a CIM (confidential information memorandum), a structured data room, and organized competitive bidding. Practitioners who work the $5 million to $50 million space consistently report that sellers who use a broker instead of an M&A advisor for businesses in that range leave one to two and a half times EBITDA on the table.

The reverse problem is also real: hiring an M&A advisor for a $1 million business means paying retainer fees on a deal that will sell to an individual buyer who simply needed to find you on BizBuySell. The fees do not match the economics.

How to Tell What a Firm Really Does

Titles and websites are not reliable guides. A firm calling itself an "M&A advisory" may primarily handle Main Street deals. A brokerage firm may have a division that runs proper institutional processes for larger transactions.

Ask these questions directly:

• What is the median enterprise value of the businesses you closed in the past two years?
• What percentage of your buyers are private equity firms or strategic acquirers rather than individual operators?
• Do you list on BizBuySell or similar platforms, or do you run a direct outreach campaign with NDAs before releasing information?
• How many active engagements does the person who will manage my deal currently have?
• What does the marketing document look like? A two-page teaser and a confidential business review, or a full CIM?

The answers will tell you far more than the firm's name or the credentials listed on their website.

Credentials Worth Looking For

The Certified Business Intermediary (CBI), issued by the International Business Brokers Association (IBBA), indicates that a broker has completed verified education, passed a comprehensive exam, and closed at least three transactions as lead seller broker. For M&A advisors, look for the M&AMI (from M&A Source) or CM&AA (from the Alliance of M&A Advisors). Advisors involved in stock sales may also carry FINRA Series 79 registration.

No credential replaces references from actual sellers they have represented. Ask for two or three.

A Simple Self-Diagnosis

Answer these two questions:

1. What is your business worth? If you have a reasonable estimate of your seller's discretionary earnings (the cash the business produces for an owner-operator), multiply by three. That is a rough estimate of enterprise value for a Main Street business. Under $5 million puts you firmly in broker or lower-boundary M&A territory. Over $5 million is M&A advisor range.

2. Who would buy your business? If the answer is "another owner-operator, maybe a manager, maybe a small local company," you need a broker. If the answer includes "a private equity firm looking to add to a platform," "a regional or national company in my industry," or "a family office that buys businesses like mine," you need an M&A advisor.

Most business owners selling a company for the first time underestimate how buyer type shapes everything that follows: the process, the valuation, the terms, and the probability of actually closing.

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Licensing note: About 17 states require a real estate license to act as a business broker; the remainder generally do not for asset-only sales. State rules vary, and this area of law is evolving. If you have concerns, your state's real estate or securities regulator is the right starting point.