The United States Citizenship and Immigration Services (USCIS) launched an H-1B Employer Data Hub on April 1, 2019. This data hub provides information to the public from fiscal year 2009 to 2019 about employers that are petitioning H-1B workers. This website was launched as an initiative to create transparency in employment-based visa programs. It provides information on H-1B visa approvals and denials, giving the public access to calculate approval and denial rates and to review employers that submitted applications for H-1B visas.
To use the data hub, one can search by employer name, city, state, zip, or NAICS code. All of the data provided is based on the I-129 Petition for Nonimmigrant Worker Form that is submitted to the USCIS when filing for an H-1B visa. Visit the USCIS website for information to better understand the H-1B Employer Data Hub and its terminology.  The USCIS will provide quarterly updates and annual releases of the data on H-1B petitions filed.