Privacy-safe data sharing vendor InfoSum has launched InfoSum Bridge, which lets users apply deterministic, probabilistic, and cohort-level identity resolution methods.    It’s a collection of matching tools that users and business partners can use on their own data as they see fit.  While InfoSum doesn’t construct its own identity graph, it does offer connections with third-party data augmentation partners.

Looking at B2B data: ZoomInfo has just released a global database that generously shares opt-out requests it receives with any other company that wants to remove the names from its own lists.  It’s not clear whether ZoomInfo will also reduce its lists using names submitted by competitors.

GrowthLoop will use TransUnion identity data to improve U.S. consumer match rates on client files sent to advertising media such as Facebook and Google Ads.  The data should also help clients to find matches among records within their files, building more accurate customer profiles.  GrowthLoop calls itself a “composable CDP”, meaning it works with data assembled in external data warehouses.