B2B Data Index — Who We Are
An independent research catalog of verified email databases. We index, verify, and document B2B business lists, consumer data, targeted audience lists, USA industry categories, and technology site databases across 200+ global markets.
Making B2B Data Transparent
B2B Data Index exists to give buyers clear, factual, independently-researched information about email databases before they purchase. We document coverage, record counts, industry distributions, compliance frameworks, and deliverability benchmarks for every database in our catalog.
We are not a data broker. We do not sell data directly. We are a research and cataloging site powered by LeadsBlue, one of the leading providers of location-targeted B2B email databases. Our research covers LeadsBlue's full catalog and provides the depth of documentation buyers need to make informed decisions.
Every page in our catalog includes a verified record count, industry breakdown, compliance framework, deliverability benchmarks, and a methodology statement. We update all listings quarterly following re-verification cycles.
What We Index
Who Compiles This Data
Our catalog is maintained by a team of data researchers, compliance specialists, and market analysts.
What We Cover
B2B Business Email Lists (124)
Verified business-to-business contact databases covering companies in 100+ countries. Each listing documents industry distribution, company size breakdown, decision-maker ratios, and compliance frameworks by jurisdiction.
Consumer Email Lists (66)
Consumer contact databases with demographic breakdowns including age distribution, gender split, and interest category classifications. Ideal for B2C marketing, e-commerce, and lifestyle brand campaigns.
Targeted Niche Lists (91)
Audience-specific databases for niche verticals including crypto investors, forex traders, healthcare professionals, legal professionals, and more. Documented with audience segment breakdowns and geographic distribution.
USA Business Databases (269)
Industry-vertical databases covering specific business categories across all 50 US states. Sourced from Google Local, Yellow Pages, and Manta. Each listing includes state distribution data and decision-maker ratios.
Technology Site Lists (107)
Databases of websites actively using specific technologies, compiled via BuiltWith intelligence. Each listing documents geographic distribution, traffic tiers, and owner contact availability by platform.
Compliance
All databases are documented with their applicable compliance framework — CAN-SPAM (US), GDPR (EU/EEA), CASL (Canada), PDPA (Singapore), and LGPD (Brazil) where relevant.
How Data Is Compiled
All databases indexed on B2B Data Index are sourced and verified by LeadsBlue. LeadsBlue compiles data from public business registries, government company databases, professional directories, and opt-in data partnerships. The collection methodology is documented in detail on our Data Methodology page.
Verification uses a three-stage process: SMTP-level email validation, company registry cross-referencing to confirm business legitimacy, and quarterly re-verification cycles to remove stale or invalid contacts. Verification rate targets are 95%+ across all databases.
Machine-readable data for all 657+ databases is available at LLM Data Files, including structured JSON for market statistics, industry distributions, compliance frameworks, and site index data.