Who this was forA small US lead generation agency running outbound for its own clients. The end client sold software to a trade vertical in one state.
The agency wanted to know if an outside operator could build and launch a working campaign fast. There was no enriched list for the target geography.
A single state build in Clay, then a five step LinkedIn campaign in HeyReach: a blank connection request, a message on day 1, a nudge on day 3, an impact message, and a close. A side branch liked a post after 5 days and ended after 20. Requests withdrew at 25 days. Sending ran weekdays, 9am to 5:30pm local time, deduplicated on profile URL.
Email was switched off on purpose. This was a LinkedIn only test.
The unusable rows matter most. We classified them instead of deleting them, so the answer was a number: 159 qualified leads in that geography, fully enriched, with no further expansion available. That ceiling is what decided whether phase two was worth running.
There's no reply or meeting result on our record. The campaign ran in the agency's own sequencer, and phase two never started.
If you're about to buy a bigger list for a narrow market, measure the ceiling first. Our Company Discovery List Builder on Apify builds the company list for one vertical and one geography, and the misses come back labeled. Then run the campaign from HeyReach, and if you add email later, Findymail finds the addresses for the same people. Send us the vertical and the geography and we'll tell you how we'd measure it.
Related tools: Clay, HeyReach, Findymail, Apify, Company Discovery List Builder on the Apify Store, Company Discovery List Builder, LinkedIn Connection Campaign
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Client names are always kept confidential at MMG, so they have been removed from this case study.
Published October 6, 2026
Last updated October 8, 2026