Most tech starts civilian, the military ones are rare exceptions.

As for your specific examples

>Robots/Drones

Autonomous robots aren't good enough yet for military, those which are used are teleoperated and thus not in the realm of AGI companies

>Surveillance

Not really a military matter, and of course we have Palantir which is doing this directly. Perhaps OpenAI/Anthropic have contracts with respect to government surveillance we don't know about