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 25, 2026
Last updated
August 25, 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 25, 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 25, 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 25, 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 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.
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
Social media and multi-account proxies
Best Instagram Proxies in 2026 Honest Review of Top Providers
one trusted, stable exit per account cluster, paired with an antidetect browser profile so the platform sees a coherent device and network story
Proxy networks
Best Proxy Providers of 2026
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
Residential proxies
Best Residential Proxies 2026 Free Cheap Unlimited Webshare Compared Reddit Recommended Picks
real consumer IPs leased from opt-in SDK partners and peer networks, rotated per request or held sticky for up to 30 minutes
Residential proxies
Best Residential Proxy Providers 2026 Ultimate Comparison Guide
real consumer IPs leased from opt-in SDK partners and peer networks, rotated per request or held sticky for up to 30 minutes