M&A advisory firms are not one market. Four distinct kinds of firm sell what looks like the same service, they serve different transaction sizes, and the fee arithmetic decides which of them will give your process real attention. Choosing across the wrong band is the most common and most expensive mistake an owner makes, and it is entirely avoidable with one calculation.
The four kinds
Business brokers at the smallest end, mostly listing-driven. Boutique M&A advisers running full processes in the lower mid-market. Middle-market investment banks with sector teams and wider buyer reach. And bulge-bracket banks, whose economics only work on very large transactions. Each is competent in its own band.
The fee arithmetic decides who takes you seriously
A $12,000,000 sale at a 5% success fee is $600,000. That is a serious mandate for a boutique and a rounding error at a large bank, and attention follows economics rather than intention. Working your own number before the first meeting tells you which band you are in.
What every band should be asked the same way
Who runs the process day to day, how many deals of my size that person closed last year, which buyers on their list I would not have found, and the fee structure including whether retainers are credited against the success fee. On the worked example here, crediting moves $600,000 to $487,500 at close.
The failure mode at each end
Too small a firm on too large a deal produces a thin buyer list and a process that leaks. Too large a firm on too small a deal produces a junior team and a mandate that is deprioritised the moment something larger arrives. Both failures are visible in advance from the fee arithmetic.
Questions people ask about m&a advisory firms
What kinds of M&A advisory firms are there?
Business brokers, boutique advisers, middle-market investment banks and bulge-bracket banks. Each is competent in its own size band.
How do I know which band I am in?
Work the fee. A $12,000,000 sale at 5% is $600,000, which is a serious mandate for a boutique and a rounding error elsewhere.
What goes wrong at each end?
Too small a firm gives a thin buyer list; too large a firm gives a junior team and deprioritises you when something bigger arrives.