Internships with clearances are common in the Intelligence Community.
Homeland Security
“The Office of Intelligence and Analysis (I&A) Internship Program is for… an exciting career in homeland security and intelligence…all selected applicants must undergo and successfully complete a background investigation and be granted a Top Secret/SCI clearance” [1]
Department of State
“Students tentatively selected for the internship program must undergo a background investigation and receive either a Secret or Top Secret security clearance.” [2]
Office of Naval Intelligence
“All interns must receive security clearances at the interim or final top-secret level with access to sensitive compartmented information (TS/SCI).” [3]
Defense Intelligence Agency
“Summer Internship Program (SIP)… To be eligible, you must…Maintain a security clearance” [4]
Homeland Security
“The Office of Intelligence and Analysis (I&A) Internship Program is for… an exciting career in homeland security and intelligence…all selected applicants must undergo and successfully complete a background investigation and be granted a Top Secret/SCI clearance” [1]
Department of State
“Students tentatively selected for the internship program must undergo a background investigation and receive either a Secret or Top Secret security clearance.” [2]
Office of Naval Intelligence
“All interns must receive security clearances at the interim or final top-secret level with access to sensitive compartmented information (TS/SCI).” [3]
Defense Intelligence Agency
“Summer Internship Program (SIP)… To be eligible, you must…Maintain a security clearance” [4]
[1] https://www.dhs.gov/homeland-security-careers/office-intelli...
[2] https://careers.state.gov/uploads/3f/b3/3fb3a5029621ca488d8c...
[3] https://www.oni.navy.mil/Careers/Intern-Programs/#:~:text=Al...
[4] https://www.intelligencecareers.gov/dia/students-and-interns...