Connect Directly with Your Ideal Prospects
At Gemstone Data, we provide high-quality telemarketing lists with accurate cell phone numbers — helping call centers, sales teams, and marketing agencies connect with their ideal audience nationwide. Whether you’re targeting consumers (B2C) or businesses (B2B), our data empowers your team to make more calls, book more appointments, and close more deals.
Each record in our database is meticulously compiled and regularly updated, giving you the confidence that your calls reach real, current contacts — not disconnected numbers. With millions of mobile and landline records available, we make it simple to reach the right prospects at the right time.
Targeted Telemarketing Lists for Every Industry
Our telemarketing lists can be filtered by hundreds of attributes to match your exact campaign needs. Build custom calling lists for:
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Home Improvement Services (roofing, windows, HVAC, solar, and more)
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Insurance & Financial Services (life, final expense, Medicare, annuities)
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Automotive & Warranty
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Non-Profit Donor Outreach
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Energy, Telecom, and Subscription Offers
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B2B Prospecting by SIC or NAICS code
Whether you’re calling nationwide or focusing on specific ZIP codes, our precise filters let you zero in on the highest-quality leads for your outbound campaigns.
Real-Time Access Through Our Data Portal
Our web-based Data Portal gives you full control of your telemarketing lists.
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Run custom counts by geography, age, income, homeownership, or industry.
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Download data instantly for immediate use in your dialer or CRM.
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Choose from consumer, business, automotive, or new connect databases.
You’ll always have on-demand access to the most accurate calling data available — formatted and ready for your next campaign.
Why Choose Gemstone Data Telemarketing Lists
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Accurate, regularly updated phone data — both mobile and landline.
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Custom segmentation by demographic, lifestyle, or firmographic filters.
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Nationwide coverage for B2B and B2C outreach.
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Fast, compliant downloads in formats ready for any dialer or CRM.
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Expert support from data professionals who understand call center marketing.
Boost Your ROI with Mobile Advertising
Combine your telemarketing campaigns with addressable geofencing to add digital touchpoints. Display ads directly on your leads’ mobile devices before or after a call to increase recognition and response rates. This multi-channel approach amplifies your brand and boosts conversions across your marketing mix.
Partner with the Industry Leader in Telemarketing Data
Gemstone Data is trusted by call centers, agencies, and sales organizations nationwide for one reason — we deliver results. Our telemarketing lists help you reach verified, engaged prospects who are ready to buy, donate, or respond.
Call (888) 267-4321 or complete the form on this page to request a free quote and start connecting with your next customers today.