The chief executive of the business security firm is eager to build an entire US-based business based around the successful platform developed by his team in Carlow

The company, which makes software to monitor elderly people in their homes, plans to use the windfall to expand into the US

David Walsh founded Netwatch, the remotely monitored security company with Niall Kelly. The company has 300,000 customers worldwide, and now the pair are embarking on a new venture, HaloCare, which uses sensors to monitor the vital signs of elderly people living alone