10 Cold Calling Tips That Scaled HubSpot to $100M

Executive overview

Cold calling is a game of seconds. Most attempts fail — even skilled callers get hung up on 80–90% of the time and aim for just one booked meeting per day.

The goal is balancing scalability with personalization: use a consistent script and structure, but front-load all personalization into the very first sentence of outreach.

Persistence beats annoyance — if you believe in your product, keep going until they hang up.

Opening and tone

• Always open with "Did I catch you at a bad time?" — yes or no, always reply "I'll be brief."
• Sound uncomfortable and nervous, not polished. Channel a nervous 14-year-old — people don't want to hang up on you.
• Scripts are acceptable here: the first 5–10 seconds are too high-stakes to wing it.

Personalization and outreach structure

• Do all research upfront; apply personalization only in the first sentence of the first email.
• Be multimodal: use phone, voicemail, email, and LinkedIn together.
• Follow-up emails need no new content — reply to the original with "Any thoughts?" or "Just bumping this up."
• The optimal number of attempts is 17, balancing persistence with scalability.

Handling objections and closing

• Top SDRs handle three or four objections before booking a meeting — stay in the flywheel until they hang up.
• 90% of all objections reduce to a list of 5–10 (no time, no money, etc.) — these become predictable within weeks.
• Never send a Calendly link and ask the buyer to book. Ask when they're available and own the scheduling.