It earned £16.6m ($27.5m) in the period, versus £14.7 in the prior half year.
Revenue went up 8% to £216.1m, with the marine support and offshore oil segments accounting for 64% of the total.
Fisher completed three bolt-on acquisitions during the first six months of 2014.
In March it bought Aberdeen-based diving equipment supplier Divex for £20m.
Nick Henry, chief executive of the London-listed company, said: “James Fisher continued to trade well in the first half of 2014 despite an adverse currency backdrop.
