Though it’s not clear whether it uses the Orion tool, the DHS’s own Cybersecurity and Infrastructure Security Agency (CISA) is a SolarWinds customer too, buying $45,000-worth of licenses in 2019. The U.S. Cyber Command also spent over $12,000 on SolarWinds tools in the same year.

SolarWinds, a publicly-listed Austin, Texas-based company with a value of over $6 billion, has its own customer list, though it doesn’t break down which products clients use. That list includes more than 425 of the Fortune 500, all major US telecoms providers, the top five U.S. accounting firms, hundreds of global universities, the NSA and the White House.