When it comes to mergers and acquisitions, the second half of this year ended with a bang. Within days of each other last month, Fin (formerly known as Intercom) announced its $3.6 billion (€3.15 billion) takeover by Salesforce and CRH agreed to acquire its rival road construction material supplier Arcosa in the US for $8.5 billion. Those are the transactions that make headlines: multi-billion-dollar transatlantic deals where Irish founders and shareholders tap into their home country’s unique connection to the US market. The latest M&A report from the Dublin private-equity firm Renatus, covering the first half of 2026, paints a…