Data
Need Reliable, Accurate Cold Calling Data?


Your List, Built by Experts—In 4 Steps.
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Your Monthly Cold Calling Power.
Each month, you get a CSV with 1000 mobile numbers, crafted by our data experts to be accurate, reliable, and cost-effective – ensuring your data is usable.
Enough for 50 conversations a day, 20 days a month – sourced with shocking accuracy to boost your pipeline.
Pitch-Perfect Lists by Data Experts.
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10x more accurate than Apollo or ZoomInfo, using 75+ AI-powered enrichment tools to deliver precise, deeply researched data.
Time and Cost Efficiency
Automate lead generation with our scrapers, saving hours of manual work while delivering reliable, ready-to-use data.
Guaranteed Satisfaction
For every wrong number, we provide a replacement at no cost, ensuring you only pay for accurate, high-quality data.
Enhanced Sales Performance
Build a stronger pipeline with +50% better-fit leads, reducing wasted effort and improving overall conversion rates.
Advanced Targeting
Find top customers in any industry, region, or size using AI-driven filters and lookalike models for precise outreach.
Pricing
One Plan, Maximum Impact.
Each month, you get a CSV with 1000 mobile numbers, crafted by our data experts.
- 1000 mobile numbers tailored to your target customer.
- 50 dials/day, 20 days/month.
- For every wrong number, we send another - no charge.
- Delivered as a CSV - ready to go.
£499
/month
No delays, no fluff - just usable data, every month.


Unmatched Accuracy, Expert-Driven.
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Unmatched Accuracy, Expert-Driven.
Harper is a team of data experts using Smart Waterfall.



