Case Study: UnboundB2B achieves higher lead accuracy with ZoomInfo

UnboundB2B Data Accuracy Drives Switch from Low-Cost Competitor

UnboundB2B, a B2B lead generation and account-based marketing agency, needed more accurate data to support its pay-for-performance model and reduce the heavy manual cleaning caused by a low-cost data provider. After switching to ZoomInfo, the company aimed to improve contact and account targeting with better data attributes and live contact records.

ZoomInfo delivered significantly stronger data quality, with UnboundB2B testing showing up to 90% of emails accurate, 93% valid live contacts, and 99% valid employee size data—about 40% better than typical providers. As a result, UnboundB2B cut time spent on verification and cleaning, reduced wasted prospecting effort, and enabled SDRs to spend more time engaging prospects and customers.

UnboundB2B

Rameshwar Sahu

CEO