I came across [this question today](https://workplace.stackexchange.com/questions/60715/security-clearances-and-travel), and I am flabbergasted at the reason for closing the question. 

Security clearances are permitted by and obtained from the US Government. Companies have little involvement in the process. This is a fair and reasonable question I've heard asked in a variety of forms by fellow applicants over the years, and it applies to anyone who will ever apply for security clearance.