Answers / Private Equity

How does buy-and-build work?

A core Private Equity interview question — asked in analyst and associate interviews across IB, PE, and the Big 4.

THE SHORT ANSWER

Acquire a 'platform' company with management infrastructure. Then bolt-on 3-7 smaller competitors over 2-4 years at lower multiples. Integrate (shared back office, cross-selling, unified brand). Exit the combined group at the platform multiple or higher. The arbitrage: buy bolt-ons at 5-7x, exit the group at 9-12x. Can add 3-5% IRR and significantly de-risks the investment.

WHAT INTERVIEWERS LISTEN FOR

  • Acquire platform company
  • Bolt-on smaller competitors
  • Integration and synergies
  • Multiple arbitrage
  • Exit at higher multiple

COMMON MISTAKES

  • Buying all at once
  • Ignoring integration costs
  • Assuming no multiple compression

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