Signal Hire

SignalHire is a contact data platform that specializes in finding emails and phone numbers from LinkedIn profiles, company domains, and social media — with a particular strength in mobile number discovery. It is used by recruiters and sales professionals who need both email and direct dial coverage for high-value outreach. With Bitscale, you can connect your SignalHire API key to run profile lookups across Grid columns and retrieve verified emails and phones at scale, enriching your prospect lists with multi-channel contact data.