Apollo
Apollo equips sales, marketing, and revenue teams with the tools they need to build pipeline and drive consistent growth. It combines powerful prospecting, engagement, and enrichment features with the industry’s most comprehensive B2B database.
About the Integration
Through Apollo’s Waterfall Enrichment, Phone Validation API is integrated directly into the enrichment workflow — so when one provider doesn’t have the contact data you need, Apollo automatically moves to the next until it finds a match. Trestle acts as the verification layer, confirming whether enriched phone numbers are actually active, helping teams reduce bad data, improve connect rates, and increase pipeline efficiency.
Features
Real-Time Phone Number Validation
Verifies each number’s activity and reachability in real time, ensuring teams only act on valid contact info.
Built into Waterfall Enrichment
Automatically runs as Apollo cycles through providers. No manual steps required.
Cleaner Data for Outreach
Helps reduce bounce rates, improves connect rates, and increases the ROI of outbound calling and sales efforts.
Integrated Products
Integrations Supported
Bring Your Own API Key
Customers sign up for a Trestle API key and integrate it directly into Apollo.
Partner-Hosted Integration
Trestle keys are embedded and managed by Apollo.