Pre-built USA B2B & Construction Leads

I need an existing, high-quality database of U.S. contacts that covers two distinct segments:

• B2B leads in the manufacturing, technology and healthcare sectors

• Active construction leads nationwide


The lists must already be compiled, recently verified and ready for immediate download—no fresh scraping or lengthy build needed. I’ll be importing the data into our CRM, so accuracy and completeness are critical.

Please send a detailed project proposal that clearly states:
• the total record count and last verification date for each segment
• every data field you provide (at minimum: contact name, title, company, phone, email and location)
• your sourcing and verification methods
• a 50-record sample for quality review
• pricing structure and turnaround time

Final deliverables: two separate CSV or Excel files (one for B2B, one for construction) plus a succinct verification report. Proposals missing these details won’t be considered.