Every M&A transaction has two sides. The sell side represents the company being sold and answers to its owners. The buy side represents the acquirer and answers to its investment committee. The same deal looks entirely different depending on which chair you sit in, and for a founder selling once, understanding the difference is worth real money.
What does a sell-side advisor do?
A sell-side advisor represents the owner in the sale of the company. The work runs from positioning and preparation through a controlled competitive process: building the buyer universe, managing outreach under NDA, creating competitive tension among qualified bidders, and negotiating price and terms through diligence to closing. Compensation is weighted to success. In the lower middle market, sell-side fees typically combine a modest retainer with a success fee in the range of 2 to 5 percent of transaction value, scaling down as deal size grows. The structure matters: the advisor is paid to close well, not simply to close.
What does a buy-side advisor do?
A buy-side advisor helps an acquirer find, evaluate, and win targets. The work centers on sourcing, valuation analysis, diligence coordination, and negotiation on behalf of the buyer. Compensation often leans more heavily on retainers, because search work is long and uncertain. A buy-side mandate rewards getting a deal done at the lowest defensible price, which is precisely the opposite of the seller’s interest.
Why the distinction matters when you sell
Buyers transact constantly; most founders sell once. The information advantage sits with the party that has seen a hundred deals, knows what a business like yours last traded for, and negotiates deal terms for a living. A seller who walks into that conversation without representation of equal quality concedes the advantage. The data bears this out: structured, competitive processes run by sell-side advisors consistently deliver higher multiples than single-buyer negotiations, with the premium typically exceeding the fee.
Questions to ask any advisor before engaging
Ask who the firm typically represents, how many engagements a senior banker carries at once, how the fee is structured, and who will actually run your deal. Ask what happens when the advisor’s other relationships touch your buyer list. Sector knowledge matters as much as process skill: an advisor who knows your buyer universe starts the process a year ahead of one who does not.
Where Windsor Drake sits
Sell-side representation is the firm’s core practice: founder-led and family-owned technology companies, typically $5M to $150M in enterprise value, advised by a senior banker from first conversation to closing. The firm takes no lending relationships and no positions that compete with a client’s interests, and every engagement is structured so the advice carries no agenda but the owner’s.
Considering a sale? Request a confidential valuation: a private, no-obligation read on where your company would price and which buyers are active.
Receive the research founders read before they sell.
The full research briefing, sent to your inbox. Confidential, no obligation.
