Lomar Shipping owns a fleet of 49 vessels according to VesselsValue, made up of 44 containerships, four tankers and a single ultramax bulker, reports Singapore's Splash 247.
Mr Georgiou now steps up from the position of chief operating officer, succeeding Achim Boehme who died from cancer in July at the age of 56.
Said Libra Group chairman George Logothetis: 'Achim's tragic passing left us with a huge void but also a tremendous legacy, in which Nicholas has played a pivotal role - helping to consolidate and lead our business during an incredibly challenging few years for the shipping industry.
'He has shown the determination, strength and leadership qualities necessary to take our business forward and we celebrate a promotion of Nicholas Georgiou that is richly deserved,' said Mr Logothetis.
Mr Georgiou began his career in shipping in 1995 with Golden Union Shipping in Greece, before joining Lomar in September 2010.
According to brokers, the company will be expanding its fleet by paying around US$7.5 million for the 2006-built 3,500-TEU box ship Maria Schulte.