Which of the following employers is required to follow ERISA regulations?

The Employee Retirement Income Security Act (ERISA) was enacted to protect the interests of employees who participate in employee benefit plans, including both retirement and health plans. Private sector employers that provide such benefits to their employees are specifically required to comply with ERISA regulations. This inclusion ensures that employees are given important information about their plans and that plans are managed transparently and fairly.

Private sector employers are distinct from governmental employers and religious organizations, which are generally exempt from ERISA requirements. Large corporations, while often subject to the regulations due to their status as private sector employers, are not singled out by employee count but rather by their provision of employee benefit plans. Thus, any private sector employer offering benefit plans must adhere to ERISA regulations, making this answer the most accurate in the context of the question.