Gladstone AI — Description: AI safety advisory firm that provides briefings, training, and risk assessments to government officials. Authored the first-ever AI action plan commissioned by the U.S. State Department ('Defense in Depth'), released March 2024. Has trained hundreds of Department of Defense staff including senior executives, generals, and admirals.

Note: The source text confirms most elements of the claim: Gladstone AI is described as providing briefings, training, and policy support to government officials, and explicitly states they have 'trained hundreds of Department of Defense (DOD) staff, from senior executives to generals and admirals.' However, the source makes no mention of 'Defense in Depth' or any AI action plan commissioned by the U.S. State Department released in March 2024. This is a significant omission from their 'About' page, which would typically highlight such a major accomplishment. The claim about the State Department action plan is unverifiable from this source.