With the Schweizerische Landesausstellung, the Swiss National Exhibition in 1914 in Bern, the company awards its most considerable contract at the time: 200 guards guarantee for area surveillance and access control. Despite the outbreak of World War I with its respective loss of manpower due to general conscription, Securitas AG is now established throughout Switzerland. In the years 1917 and 1919, contracts with the organisers of the Swiss trade fair in Basel and the Comptoir in Lausanne follow. These institutions count to the company’s regular customers until today. On. November 27, 1917, Jakob Spreng dies age 54, and his successor Alfred Geiser enters upon the office as General Manager.