At what deal size should I hire an M&A advisor instead of a business broker?
Hire an M&A advisor instead of a business broker when your transaction is large, involves strategic buyers, or requires complex deal structures such as earnouts or equity rollovers. Complexity matters as much as size.
Where the Size Threshold Falls
The IBBA and M&A Source Market Pulse survey divides the market into Main Street businesses (values up to $2 million) and the lower middle market (values from $2 million to $50 million) (IBBA and M&A Source, Market Pulse Survey Report Q4 2023, p. 3); it is a US-based survey, and there is no fixed Canadian threshold.
Smaller, Main Street businesses commonly work with business brokers, who are paid mainly by commission at closing. The International Business Brokers Association (IBBA), a US-based association, says business broker commissions on Main Street sales can range from 8% to 15% of the final sale price and may be subject to an agreed minimum (IBBA, Your Guide to the Business Brokerage Profession, 2021). These brokers primarily list businesses on marketplaces like BizBuySell, conduct basic financial screening, and facilitate straightforward asset or share sales.
Larger transactions typically engage M&A advisors, who usually charge a work fee during the engagement plus a success fee on a declining scale. In a 2024–25 survey of 456 middle-market advisors (about half in North America), the most common monthly work fee was $5,000 to $10,000, and the most common fixed engagement fee was also $5,000 to $10,000 (Firmex, Global M&A Fee Guide 2024-25). The most common success fees in the same survey were 4.8% on a $5 million deal, 3.4% on a $20 million deal and 2.0% on a $100 million deal, with North American fees somewhat higher than these global figures (Firmex, Global M&A Fee Guide 2024-25).
In the middle of the size range, business brokers and M&A advisors both compete, and seller choice often depends on transaction complexity and strategic buyer targeting rather than size alone.
What Changes Above the Threshold
M&A advisors typically provide sophisticated buyer targeting, auction processes with multiple competing bids, detailed quality of earnings analysis, and complex deal structuring including earnouts and equity rollovers. Strategic buyers — competitors, roll-up platforms, private equity-backed consolidators — are more commonly sourced by M&A advisors, while individual buyers and first-time business owners are more commonly sourced by business brokers.
Larger, advisor-led transactions usually take longer to close. Seller financing is more common in broker-led transactions, while in M&A advisor-led transactions institutional or strategic buyers typically provide full cash consideration or bank financing.
Deal Complexity vs. Deal Size
Deal complexity factors may warrant an M&A advisor regardless of size. These factors include multiple business units or locations, complex revenue models (SaaS, recurring contracts), cross-border buyer interest, significant intellectual property, or regulatory licensing requirements.
Businesses with larger earnings may benefit from M&A advisor-led processes because of increased buyer sophistication and financing complexity.
Regional Considerations in Canada
In markets with limited M&A advisor availability — such as smaller Canadian provinces outside Ontario, Quebec, and British Columbia — business brokers may serve larger transactions that would typically engage M&A advisors in larger markets.
When to Choose Based on Advisor Expertise Rather Than Threshold
This overlap means that seller choice often depends on transaction complexity and strategic buyer targeting rather than size alone. If your business has complex revenue models, multiple locations, or you are targeting strategic buyers rather than individual purchasers, an M&A advisor may be the better choice even for a smaller business.
This article is for informational purposes only and does not constitute financial, legal, or business advice. Every business sale is different. Before making decisions about engaging an advisor, consult a qualified professional familiar with your specific situation.
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