Network Rail Property, which was rebranded from Spacia in 2010 and is one of the largest land and property owners in the country, handed over the project brief following a four-way pitch.
Fishburn is developing a marketing and communications strategy for the business to support it over the next five years.
Having already worked with Network Rail for more than a decade, Fishburn will aim to build awareness of the business as an established property organisation and a partner of choice in the railway industry.
In addition to delivering property and land expertise for Network Rail, Network Rail Property is responsible for the redevelopment of managed stations – including King’s Cross and Waterloo – railway arches and other commercial property across the UK.
David Biggs, MD at Network Rail Property, said: "Network Rail Property is at the heart of delivering Britain’s ambitions for the railway. Our continued success depends on having a clear marketing and communications strategy that can help us attract the right people and partners to help maximise the potential within our portfolio."
News of the hire comes as Network Rail, which recently hired Unilever's Barney Wyld as comms director, embarks upon a recently announced five-year plan to invest £38bn in rail infrastructure.
Network Rail is responsible for Britain’s rail network including track, stations and signalling and is also preparing to be reclassified as a government agency in September.