Proofy vs Thalamus

Best offer for email list verification

Quickly validate and verify your email lists. Just drop your contacts directly into the PROOFY interface. We'll sort out the good, the bad, and the ugly. Verify email addresses within your application using our Real Time API.
Our stage email verification process will ensure you get rid of all invalid emails and helping you boost your return on investment (ROI) for email marketing campaigns

Thalamus is a discovery engine and review platform for online advertising.

Thalamus is the largest crowdsourced database of ad vendor data in the world.
With over 50,000 ad partners and counting, Thalamus houses the most comprehensive dataset of ad partner capabilities, contacts, marketing collateral, ad specs, network data, and marketer reviews for vendors across the globe.
Media buying teams representing 90% of the AdAge top digital agencies list, as well as global brands, use Thalamus to source, evaluate, and connect with participating ad partners to meet their digital advertising goals.