Lob's website experience is not optimized for Internet Explorer.
Please choose another browser.
Trust your address data with the most accurate verification tool on the market
Lob is the most accurate address verification product in the market, and leverages real-time data and machine learning to constantly optimize accuracy. Lob is the only AV tool with access to extensive physical mail data and Lob leverages that data to consistently test and improve AV API accuracy.
Lob is building APIs to increase connectivity between the offline and online worlds. We’re automating direct mail and address verification so modern businesses can move faster & create new growth opportunities.