In the autumn of 2024, two of Europe's most closely watched technology companies appeared to be on the verge of a landmark deal. Arclight Systems, a cybersecurity firm based in Edinburgh, and Nexara Digital, a data analytics company headquartered in Hamburg, had been in private discussions since the spring. By October, the financial press had already written extensively about the expected merger, and industry analysts had predicted it would reshape the European tech landscape.
The process had moved quickly. Both companies had agreed on a valuation by June. By August, their legal teams had drafted a letter of intent, which both CEOs had signed at a private ceremony in Zurich. The lawyers had spent the following three months working through the details of the final contract. Employees at both firms had been quietly informed. Recruitment had been paused. One Arclight engineer later told a journalist: "We had all assumed it was done. It felt real."
It was not done. On the 14th of October, Nexara's due diligence team made a discovery that stopped the deal immediately. Arclight's chief executive had not disclosed a significant financial loss incurred in the third quarter of the previous financial year. The figure — approximately €23 million — did not appear in any of the documents Arclight had provided to Nexara's advisers. Nexara's team had just completed their final review of the accounts when they found the discrepancy. By the time the two CEOs spoke by phone that afternoon, Nexara had already made its decision: the deal was off.
Within 48 hours, both companies had issued public statements. Arclight expressed "regret at the breakdown of negotiations". Nexara stated that it remained "committed to strategic growth through responsible partnership". Neither side had expected the outcome. Neither side offered a full explanation.
For those who follow mergers and acquisitions closely, the collapse was a sharp reminder. By the time a deal reaches its final stage, enormous resources had already been invested — legal fees, consultant hours, staff time, and trust. The lesson of Arclight and Nexara is not new, but it appears, periodically, to need repeating: in any deal of substance, transparency is not optional. It is the foundation on which everything else had been built.