Millennium Co., Ltd., known for its care service brand Mitte, provides support for people with significant disabilities and complex medical needs, while also offering training and community-based services. Its main service is in-home care, helping people with conditions such as ALS and muscular dystrophy with daily activities, personal care, household tasks, and overnight support. Care may include assistance with eating, bathing, dressing, mobility, and medical procedures such as suctioning and tube feeding.

Millennium also operates support services that combine housing, daily living assistance, and welfare or care services, as well as after-school day services for children with profound disabilities. Through Mille Care Academy, the company delivers training in medical care skills, including suctioning and tube feeding, and supports staff in obtaining relevant qualifications. Its recruitment spans care workers, coordinators, managers, nurses, childcare and support staff, trainers, and corporate roles.

The company welcomes experienced and inexperienced applicants, offering training and qualification support alongside flexible work options, including part-time schedules, night shifts, and opportunities for secondary employment