About List.Solutions
List.Solutions is a full-service data brokerage operated by Lead Harmonics LLC. We connect businesses, agencies, and nonprofits with targeted audience data for direct marketing campaigns. Whether you need consumer mailing lists, B2B contacts, or healthcare provider data, we source it from the right suppliers and deliver campaign-ready audiences.
What We Do
We provide access to thousands of mailing lists, email lists, and telemarketing data sources across three market segments: consumer, business/B2B, and healthcare. Our catalog includes over 57,000 data products spanning 600+ categories, covering virtually every industry, demographic, and professional specialty.
How It Works
We act as your single point of contact for sourcing marketing data. Instead of contacting list owners individually, negotiating rates, and managing multiple vendors, you work with one team that handles everything — from list research and recommendations to data processing and delivery.
We work with list owners (data compilers like Acxiom, InfoUSA, Experian, and specialty publishers) to source the best data for your campaigns. Our brokerage model gives you access to hundreds of suppliers through a single point of contact, with expert guidance on source selection, data quality, and audience strategy.
Our Data Partners
We source data from established companies that maintain massive, continuously updated databases:
• Acxiom (IPG) — Identity resolution and consumer data enrichment
• Dun & Bradstreet — Definitive B2B firmographics and corporate data
• Experian Marketing Services — Consumer and business data built on credit bureau infrastructure
• LiveRamp — Identity infrastructure connecting offline data to digital platforms
• TransUnion / Neustar — TruAudience identity resolution and household data
• Hundreds of specialty compilers, publishers, and response list managers
Multi-Channel Data
Our data lists are not limited to a single channel. We source audience data for:
• Direct mail campaigns (CASS/NCOA certified postal addresses)
• Email marketing outreach (CAN-SPAM compliant, opt-in verified)
• Telemarketing and phone campaigns (DNC-scrubbed, phone-verified)
• Digital advertising via CRM onboarding (Meta, Google, LinkedIn, The Trade Desk)
• Integrated multi-channel strategies (merged, deduped, platform-ready)
About Lead Harmonics LLC
List.Solutions is operated by Lead Harmonics LLC. We are committed to ethical data sourcing, compliance with data privacy regulations, and transparent business practices. All data we broker is sourced through licensed, industry-standard channels with proper usage agreements.
Contact Us
Ready to discuss your data needs? Reach out to our team and we will provide list counts, pricing, available selections, and delivery timelines for any category.
📞 Phone: (407) 923-1715
✉ Email: benjamin@leadharmonics.com