The more relevant question is, which Israeli companies are currently not involved in covert military operations?

The difficulty in comprehending an answer to this question is precisely why allowing ones military to perform such actions using covert means is so dangerous for a civilian population to support.

War is supposed to be fought in the open in order to protect the civilians.

I suppose when the distinction between soldier and civilian is not so easy to make, the profligate mindset which allows covert, indiscriminate mass murder at scale becomes a norm.