Accompany - Accompany platform integrates with email, contacts, social feeds and more to keep you informed on your professional connections.

SAS Data Quality - SAS Data Quality gives you a single interface to manage the entire data quality life cycle: profiling, standardizing, matching and monitoring.

Propeller CRM - Small business CRM with deep Gmail integration

Melissa Data Quality - Melissa helps companies to harness Big Data, legacy data, and people data (names, addresses, phone numbers, and emails).

Streak - Manage customers inside Gmail

Oracle Data Quality - Overview of Oracle Enterprise Data Quality