AllBiz is a free-to-use United States business directory designed to help people find and compare businesses online. The platform says its database contains 41.9 million business listings and aims to be one of the web’s most comprehensive directories for U.S. businesses. Users can search for companies and explore profiles with information such as business names, addresses, phone numbers, email addresses, fax numbers, websites, hours of operation, primary contacts, revenue, industry demographics, social media links, and related businesses.

AllBiz also helps visitors compare businesses by factors including size, age, and sales. Its website highlights popular, frequently visited, recently edited, newly added, and recently reviewed business profiles, with ratings and review counts shown for some listings. Businesses span a broad range of industries and locations across the United States. For historical research, AllBiz points users to its sister site, bizarchive.com, which offers access to an additional 58.6 million archival business listings. The directory provides a practical starting point for researching U.S. companies and discovering their publicly listed business details.