How to Find Direct Phone Numbers of B2B Decision Makers

Phone is still one of the highest-converting outreach channels in B2B — but only when you have a direct number, not a gatekept switchboard. Here's how to find verified direct phone numbers for decision makers.

Why Direct Dials Matter

Reaching a decision maker through a central company number means getting past a receptionist or automated system. Direct dials bypass that entirely. Studies consistently show that direct dial numbers produce 2–3x more connected calls than switchboard numbers.

Tool 1: ZoomInfo

ZoomInfo is the gold standard for direct dial phone numbers. It maintains one of the largest verified business phone databases, with numbers updated through crowdsourcing, web crawling, and partner data feeds. Expensive, but worth it for high-volume cold calling teams.

Tool 2: Apollo.io

Apollo includes direct phone numbers alongside emails on many of its profiles. Quality varies by industry and geography, but for US and European markets it's solid — and much cheaper than ZoomInfo.

Tool 3: ContactOut

ContactOut specializes in personal phone numbers scraped from LinkedIn and public sources. Great for finding mobile numbers when direct office lines aren't available.

Tool 4: Lusha

Lusha is a lightweight Chrome extension that reveals phone numbers (and emails) directly on LinkedIn profiles. It's particularly strong for mobile numbers in European markets.

Manual Methods

• Company website: Many companies still list direct lines in their leadership or contact sections.
• Press releases: Often include a media contact who can route you to the right person.
• Conference speaker pages: Events frequently publish speaker phone numbers for logistics purposes.

Need decision-maker phone numbers for your outreach? I research and verify direct dials alongside emails as part of my B2B lead generation service. Get in touch →