Salesforce Data.com - Data.com provides company profiles and contact information across millions of businesses worldwide.

Kin - Kin is money for the digital world. It is used to generate value through a shared, decentralized cryptocurrency in a digital ecosystem of apps and their users.

Demografy - Demografy is a SaaS platform that uses AI to predict customer demographics from names. It provides full coverage, accuracy estimate before purchase and work with even masked names enabling privacy and GDPR-compliance.

Flexibits - Makers of Cardhop, Chatology, and Fantastical.

YesData - YesData offers data cleansing and enrichment solutions.

Windows Contacts - Windows has many extraordinary organizers, and in the event that you include distributed storage, then you presumably have more.