RSMB is a privately owned company headquartered in the UK. Founded in 1987, it employs approximately 50 individuals. The company specializes in providing audience measurement solutions for the media industry.
On March 8, 2026, Barb enhanced its Barb Ads Hub platform by integrating pre-campaign planning capabilities, allowing users to estimate and evaluate campaign performance across linear and video-on-demand services. This enhancement followed Barb's launch of Barb Ads Hub on January 26, an analytics system designed for full-cycle ad campaign planning and reporting, which initially offered post-campaign analysis through its CFlight methodology. Separately, on January 20, RSMB announced it would upgrade Barb's API to offer increased speed and capability, following the API's initial launch three years prior. This development came after Barb appointed RSMB on January 19 to deliver the third phase of its API, known as API 3.0, which Barb described as a crucial element of its data-distribution strategy. Earlier on January 18, Barb had selected RSMB for this API upgrade in response to clients' demand for more choice in how they import viewing data into their internal systems.
RSMB's customers primarily consist of broadcast television and radio and telecoms companies. Examples of RSMB's customers include BBC, ITV and Sky Group. RSMB has partners like Streamhub. RSMB has suppliers like Streamhub.