The choice between independent M&A advisor and investment bank is the first structural decision an entrepreneur-seller must make when deciding to put their company on the market, and it touches four trade-off dimensions: independence, buyer coverage, depth of service, compensation structure. There is no universally right choice — there is the right choice for the specific operation and specific seller profile.
Independence is the first and most substantial difference. Investment banks (both global investment banking groups and domestic merchant banking) structurally have multiple relationships: with corporate buyers from their client book, with PE funds that are already committed on other mandates, with financial institutions with whom they share operations. These relationships are not “bad” but create implicit constraints: the bank tends to converge the deal toward its natural buyers, where the commission is easier to close and future relationship more solid. An independent advisor doesn’t have this book — therefore selecting buyers purely for fit with the specific selling company, without internal conflict filters.
Buyer coverage has different readings depending on segment. For deals above 100-200 million euros, investment banks have superior global coverage: cross-border corporate relationships, direct access to top management of international groups, capacity to organize auctions on continental scale. For mid-market deals under 100 million, coverage levels or inverts: serious independent advisors often have more granular knowledge of regional Italian industrial fabric, structured family offices, emerging search funds, niche industrial buyers that investment banks neglect because they don’t scale on their business model.
Depth of service depends greatly on the allocated team. Large investment banks tend to present senior partners at pitch but operate with junior analysts day-by-day: the entrepreneur talks to people who rotate and have limited time for the single dossier. An independent senior boutique advisor, conversely, typically operates as a tight team (2-4 people) where the principal personally follows critical phases: buyer presentation, term sheet negotiation, closing management. For a mid-market seller, this means superior personal attention and relational continuity.
Compensation structure, finally, differs on two dimensions: success fee and retainer. Investment banks on deals over 100 million apply 1-2.5% success fee with significant retainers (15-40k€ monthly); on mid-market deals they often don’t even present because absolute fee doesn’t justify team allocation. Independent advisors operate on 2-5% scalar success fee (higher in percentage but on smaller deals) with contained retainers (4-12k€ monthly). For a 30 million euro deal, total cost at parity of outcome can be comparable or slightly lower with independent advisor, but with superior relational quality and independence.