Yes, you can enrich people using Gmail addresses. Our email waterfall enrichment accepts personal email addresses (including Gmail) as input.
When setting up the waterfall, use fallback combinations like Full Name + Personal Email if company domain isn't available. Several providers like Snov.io and Mixrank can enrich person data from personal or work email addresses.
The enrichment can return professional details like job title, company information, LinkedIn profiles, and other contact data even when starting with a Gmail address.