The story
When ICM was initially established, the initialism represented "Independent Communications and Marketing". However, the full name was never used in practice, with the company simply being known as "ICM". It was founded by three people: Nick Sparrow, who reinvented opinion polling after the 1992 polling miss to common acclaim, Steve Parker who focused on retail research, and Kate Turner, who conducted IT and telecoms research. All founders joined from Marplan, a market research company that ceased to exist just before ICM being set up.
FieldworkUK was set up as a face-to-face interviewing operation in 1999, followed by ICM Direct for telephone (and later, online data collection) in 2001.
ICM was sold to Creston Plc in 2008, after which the three founders left the business.
ICM Research re-branded in November 2014 to ICM Unlimited.
From Wikipedia’s article on ICM Research, shared under CC BY-SA 4.0.3