The Saint-Germain coffee shop in the picturesque village of Malahide in north Dublin is quiet at 8.45am on a bracing Monday morning when Joe Schull arrives. None of the customers look up as Schull sits down. Just weeks earlier, Corten Capital, his low-key fund, bought a majority stake in a business located just fifty yards away from the coffee shop. That business is Ekco, a European cloud and cybersecurity provider that ranks as one of Ireland’s most exciting companies. The deal valued the Malahide headquartered company at more than €330 million. Led by founders Eoin Blacklock and Jonathan Crowe, Ekco…