According to Rogerson’s obituary published in The Times, he died on 6 July "after a short illness".
Rogerson co-founded Dewe Rogerson Group with Roddy Dewe in 1969. Over the coming decades he helped grow the business into a leading financial and corporate PR agency, expanding in the 1980s and 1990s to markets including New York, Tokyo and Hong Kong.
Citigate Dewe Rogerson was formed in 1998 with the merger of Dewe Rogerson and Citigate Communications under new owner Incepta Group. The agency was later sold to current owner Huntsworth.
Rogerson, who studied law at Cambridge, was also involved in Concept to Profit, a venture providing help and guidance to pre-seed enterprises.
Paying tribute to Rogerson, CDR managing director Patrick Donovan said: "He was one of the greatest in the business and helped to pioneer communications around privatisations.
"He was well loved within the business and I think his death came as a shock to all of us."
In a statement, CDR said: "Nico was an acknowledged pioneer in financial PR and a huge character both at work and outside.
"There are still many people at Citigate Dewe Rogerson who worked with Nico and learned from him and he is still remembered with great affection and admiration. We’re still very proud to have his name on the door."