Post-Merger Integration: Why the First 100 Days Matter More Than You Think

The first 100 days after a merger or acquisition can make or break its success. This is the period when leadership must set a clear vision, capture quick wins, align cultures, and stabilise operations. Organisations that treat this window as a launch pad for value creation are far more likely to achieve post-merger success — while those that delay risk losing momentum, talent, and competitive advantage.