Trades businesses are where industry codes fail hardest: many are filed under construction, retail or "other services". Buzzlist reads the company name and description and the mix of technicians, installers and dispatchers instead, so "Smith Heating & Air" is found even if its code says plumbing.
Phone matters more than email here. Ask for a mobile or direct dial and BuzzAI requires it. The breakdown tells you how many owners have one before you spend a contact.
For a territory, add states or cities; a ZIP-radius search is on the roadmap. For size, most HVAC companies sit in the one to nineteen band; add twenty to ninety-nine for multi-truck operators.
Once the list is saved, a Sales Brief on the larger companies tells you what they advertise, what changed recently and who else works there, which is usually the difference between a cold call and a conversation.
