Post-merger integration

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Post-merger integration or PMI is a complex process of combining and rearranging businesses to materialize potential efficiencies and synergies that usually motivate mergers and acquisitions. The PMI is a critical aspect of mergers; it involves combining the original socio-technical systems of the merging organizations into one newly combined system.


The process of combining two or more organizations into a single organization involves several organizational systems, such as assets, people, resources, tasks, and the supporting information technology.[1] The process of combining these systems is known as 'integration'. Integration Planning is one of the most challenging areas to address pre-close during a merger or acquisition.[2] The integration management office, or IMO, manages core functions of the integration effort and provides structure for integration delivery.[3] In a survey by Global PMI Partners of 143 M&A executives, 67% of respondents incorporate IMOs during an acquisition on at least half of their initiatives in a cross-border setting.[4]

Organizational lifecycle[edit]

Integration fits within an organizational lifecycle or specific business mergers and acquisitions cycle where businesses buy, integrate, then dispose of businesses:

  • Definition of vision & strategy
  • Selection of growth method: organic vs inorganic
  • Target identification
  • Pre-deal evaluation & due diligence
  • Negotiation & deal completion
  • Post-merger integration
  • Acquisition integration
  • Ongoing improvement
  • Disposal

See also[edit]


  1. ^ Anthony F., Buono; Bowditch, James L. (1989). The human side of mergers and acquisitions: Managing collisions between people, cultures, and organizations. San Francisco: Jossey-Bass Publishers. ISBN 1-55542-135-0. 
  2. ^ M&A Transaction Survey of 50 executive M&A respondents (2013); ModalMinds Inc.;
  3. ^ Hofmeyer, Stefan; Whitaker, Scott C.; et al. (2016). Cross-Border Mergers and Acquisitions. Hoboken, New Jersey: John Wiley & Sons, Inc. ISBN 978-1-119-04223-5. 
  4. ^ Global PMI Partners, Cross-Border M&A Integration Survey, November 2015;

External links[edit]