I disagree.
Google can probably outspend the Israeli government, but the Israeli government has capabilities Google will never acquire because Google's control over its employees is limited (mainly to contract law). Google cannot sentence an employee to decades in prison for betraying Google's secrets.
So for example, it turns out that 1 or 2 of the employees of the Manhattan Project betrayed the project by giving nuclear secrets to the Soviet Union, but at least the US government had a realistic chance of keeping secrets there whereas a private corporation embarking on a project of similar scale (i.e., a similar number of employees with similar levels of knowledge and skill) has no realistic hope of doing so.
I think this argument is relevant to computer security because having an exploit is almost completely useless if the entity you hope to use the exploit against knows you have the exploit.
If you mean a “major regional power”-level actor, or a “global superpower”-level actor, then say that, but a category that includes both the United States of America and Tuvalu isn't communicating a coherent capability level in any domain.