Reference Solutions (Data Axle) - Was ReferenceUSA This link opens in a new windowData Axle is an industry leader in business and consumer information. Reference Solutions, founded as ReferenceUSA in 1992, is an online tool to give library patrons and business owners access to data on over 17 million businesses and 320 million consumers. Reference Solutions eliminates the need to scour multiple websites or perform complicated searches—in fact, we provide information to the top five search engines. We do it all—collecting and verifying the most accurate and up-to-date research data available. Our database brings information directly to students. Data Axle—founded in 1972 as Infogroup—is a research tool for business, consumer and residential directory information. With data compiled from more than 100 sources, including real estate, tax assessments, B2B records, and demographic and firmographic data, Data Axle contains accurate information on consumers and businesses in the United States and Canada.