datasets · 5 min read
The Best B2B Data Providers of 2026
Company and contact data vendors compared on coverage, field accuracy, delivery and compliance posture.
Author
5Proxy Editorial
Published
August 8, 2026
Last updated
August 8, 2026
Reading time
5 minutes
B2B datasets are bought on two numbers: how many records match your ICP, and what share of those records are still true. Vendors advertise the first and rarely publish the second.
We sampled 500 random records per vendor and verified firmographics, contact validity and refresh dates by hand.
Related proxy deals & promo codes
All deals →Reader-matched offer
30% OFFOxylabs
Oxylabs Residential Proxies — 30% Off First Month
Reader-matched offer
DEPOSIT MATCHBright Data
Bright Data ISP Proxies — First Deposit Matched Up To $500
Reader-matched offer
UNLIMITED $50Smartproxy
Smartproxy Datacenter — Unlimited Bandwidth From $50/mo
Tags
About the author
5Proxy Editorial
The 5Proxy editorial team independently benchmarks, tests, and audits every proxy provider we cover. We accept affiliate commissions but never accept paid rankings.
Keep reading
Related articles
datasetsAug 8, 2026 · 5 min read
The Best E-commerce Datasets of 2026
Product, pricing and review datasets for marketplaces, ranked on refresh cadence and SKU coverage.
NewsAug 8, 2026 · 5 min read
Residential Proxies
Residential proxies route your traffic through real household IP addresses handed out by consumer ISPs, so target sites see an ordinary broadband customer instead of a server.
NewsAug 8, 2026 · 5 min read
Rotating Residential Proxies
Rotating residential proxies assign a different household IP to each request (or each short interval), spreading a crawl across thousands of ISPs so no single address ever trips a rate limit.
More from the 5Proxy library
All articles →buying guides
Best SOCKS5 Proxies for Instagram Automation (2026)
Instagram's anti-bot pipeline is aggressive. These SOCKS5 providers survive it consistently.
buying guides
Best SOCKS5 Proxy Providers in 2026: The Definitive Ranking
We benchmarked 27 SOCKS5 providers across success rate, latency, pool freshness, price per GB, and support quality. Here are the ten that actually deliver in 2026.
buying guides
Residential vs Datacenter Proxies: Which SOCKS5 Type to Buy?
Residential IPs look like real users, datacenter IPs are fast and cheap. Here's how to pick between them for SOCKS5.
tutorials
Scraping Google SERPs with SOCKS5: A Practical Guide
Google's captcha rate scales with datacenter IP density. Residential SOCKS5 is the answer — with the right configuration.
Proxy networks
The Best Proxy Providers 2026 Full Comparison Bright Data vs Oxylabs vs Smartproxy More
intermediary servers that route your requests through a different IP, with the exit type — residential, mobile, ISP or datacenter — deciding how much trust you inherit
news
The SOCKS5 Proxy Market in 2026: Trends and Predictions
Consolidation, mobile-first pools, and the death of shared datacenter — where SOCKS5 is heading.