W2O Group continues its buying spree. The SF-based agency acquired Sentient Interactive, a firm specializing in digital paid and owned media analytics, strategy and marketing. Sentient president/co-founder Adam Cossman will serve as chief digital officer of W2O Group. Earlier this year, W2O said Mountaingate Capital secured an investment position in the firm to accelerate growth. W2O’s acquisition of Sentient, Pure and Marketeching during the past 6 months has added 100 employees and $25 million in revenue. -- Ruder Finn acquired Daylight Partnership, a digital marketing and analytics consultancy. Daylight will merge with Ruder Finn’s digital arm and be known as RFI Daylight. Daylight founder David Ko will become SVP, RFI Studios Asia.