Klarity by DemandScience vs. Prospeo.io

DemandScience Audience Builder empowers B2B marketers with smarter data to define, refine, and activate target accounts with precision. Built on a verified global first-party data ecosystem of 247M+ contacts and 26M+ companies, it integrates firmographics, technographics, and intent signals so users can move beyond outdated static lists and build dynamic audiences that align with real buyer behavior. With this intelligence at your fingertips, Audience Builder helps you prioritize accounts showing real interest and engage them with the right message at the right time.

Prospeo is a B2B sales intelligence and data enrichment platform that helps revenue teams find verified contacts, build targeted prospect lists, and push clean data directly into their sales workflows. Unlike legacy providers that charge six-figure contracts for stale data, Prospeo delivers enterprise-grade accuracy at a fraction of the cost — with every email and mobile number verified before delivery. Prospeo serves sales development representatives, account executives, outbound agencies, founders, and revenue operations teams at B2B organizations of all sizes.