Amperity

Amperity is a Seattle-based enterprise customer data platform company that specializes in solving one of the hardest problems in customer data management: resolving and unifying customer identities across fragmented, inconsistent records from dozens of different source systems. Traditional identity resolution relies on deterministic matching — linking records that share an exact email or phone number — which fails when customers use multiple emails, old phone numbers, or inconsistent name spellings across loyalty programs, point-of-sale systems, e-commerce platforms, and call center records. Amperity's probabilistic ML models evaluate hundreds of attributes simultaneously to identify records that likely represent the same customer even without exact key matches, constructing a persistent customer identity graph that dramatically increases match rates compared to rules-based approaches. The unified customer profiles built on this identity foundation drive higher-quality audience segmentation, more accurate customer lifetime value models, and more effective personalization for paid media suppression and lookalike targeting. Amperity serves enterprise retailers, hospitality brands, and consumer companies including Alaska Airlines, Wyndham Hotels, Gap, and Under Armour that manage customer data spanning multiple brands, channels, and legacy systems. Founded in 2016, Amperity raised over $187M from investors including Tiger Global, Goldman Sachs, and Declaration Partners, competing with Reltio, Informatica, and LiveRamp in the customer data and identity resolution market.