Many UK SMEs hit a critical growth barrier between £2 million and £4 million in turnover. At this stage, overheads rise as businesses invest in essential functions like HR, marketing, and finance—without immediate revenue gains. This blog explores why this “messy middle” is so challenging, how life changes after £4 million, and what founders can do to survive and scale. A must-read for entrepreneurs navigating the toughest phase of SME growth.