USCIS has launched a web-based “H-2B Employer Data Hub”! This web page allows you to select different H-2B Visa data points, such as cap fiscal year (back to FY 2015), and many others to search areas related to H-2B. They stated that the data hub is part of their efforts to increase transparency to the public and users.
Please view this USCIS News Alert for more details: USCIS Launches H-2B Employer Data Hub
USCIS Webpage: H-2B Employer Data Hub