Apollo ILS/LSP - The Apollo ILS (Integrated Library System) was designed from the ground up by practicing librarians to be a hosted ILS for public libraries.
SirsiDynix Symphony - Library Management
Sierra ILS - Sierra is designed to make your library effective.
Follett Destiny Library Manager - Follett Destiny Library Manager is a complete library management system that can be accessed from anywhere.
LibAnswers - Librarian-First SaaS Platform for Libraries
Koha - Koha is the first free and open source software library automation package (ILS).