How to Acquire and Integrate a Smaller Business
M&A basics for mid-market operators.
“M&A is not a shortcut. Two-thirds of acquisitions destroy value — and the ones that work are the ones where the buyer had a specific, written thesis they refused to deviate from.”
The Insight
Most mid-market acquirers buy for growth and integrate for cost — and wreck both. The ones who succeed treat the acquisition as a specific strategic bet with a specific integration plan, not a vague bolt-on. Integration is the job; the close is just the starting gun.
01
Write the Thesis Before You Look at Targets
A good M&A thesis answers: what capability, market, or revenue are we buying? What would we pay versus building it? What would failure look like? What assumptions must be true? Every deal then gets judged against the thesis — not against founder ambition or banker enthusiasm. Most bad acquisitions were done against no thesis at all.
02
Diligence the Culture as Hard as the Numbers
Commercial, financial, legal, and tech diligence are table stakes. Cultural diligence is what separates deals that work. Spend time with the target's middle management. Read their Glassdoor. Interview their former employees. A 'great' target with toxic culture will destroy value inside your own company within 18 months. Most acquirers skip this — and pay for it on day 120.
03
Integrate on a Written 100-Day Plan
Day one starts with a published 100-day integration plan: systems, people, customers, brand, finances. Owners named, milestones dated, weekly reviews scheduled. The first 100 days set the tone for the next five years. Acquirers who drift through them lose the acquired team's best people — and those departures tell the market whether the deal worked before the numbers do.
The Takeaway
Thesis first. Cultural diligence second. 100-day plan third. The deal is the beginning of the work — treat close day as kickoff, not finish line.
Want This Installed Into Your Business — Not Just Read?
The resource is the framework. Our coaches and ecosystem turn it into results — faster, with fewer mistakes. Book a no-obligation call to see if we're a fit.
More from Medium Business Resources
How-To Guide
How to Unify Disconnected Business Systems
ERP, CRM, HRIS, and finance — integration without the re-platform nightmare.
How-To Guide
How to Build a Middle-Management Layer That Works
Role clarity, spans of control, and decision rights.
How-To Guide
How to Run OKRs Across 100+ People
Cascading goals without the bureaucracy tax.
How-To Guide
How to Expand Internationally Without Breaking the Core
Market entry, localisation, and governance frameworks.