As the premier provider of state- and board-approved online training for Private Investigators and Security Professionals, NITA offers a wide array of digital resources to ensure every student has the information they need to be successful. Considering a career as a Private Investigator or Security Professional? Let us help you make an informed decision. Searching for pre-licensing, state examination preparation, continuing education, or professional development courses to expand your expertise? Our convenient online training courses are designed just for you.