GMG Ventures, the venture capital arm of Guardian Media Group, led the funding round. : LONDON: Signal Media has raised $16 million in a Series B funding round to fuel its U.S. expansion, challenging market incumbents such as Kantar, Cision, and Meltwater. Signal Media head of strategy Felix Danczak described itis platform as a reputation management and market intelligence system fueled by artificial intelligence. It combs through 2.8 million online, print, TV, radio, and regulatory sources, and its system learns from users’ queries and adapts over time.