Following the Trump administration’s decision on Friday to blacklist Anthropic and designate its technology a supply chain risk, defense tech companies are telling employees to stop using Claude, and to switch to other artificial intelligence models and assistants.
“Most of our companies are actively involved in large defense contracts and so are very strict in their interpretation of the requirements,” said Alexander Harstrick, managing partner at J2 Ventures, which backs startups in the space.
Harstrick told CNBC in an email that 10 of his firm’s portfolio companies that work with the Department of Defense, “have backed off of their use of Claude for defense use cases and are in active processes to replace the service with another one.”
Meanwhile, defense contractors like Lockheed Martin
are expected to remove Anthropic’s technology from their supply chains, Reuters reported late Tuesday.











