Maintainers for systemd are Debian systemd Maintainers <pkg-systemd-maintainers@lists.alioth.debian.org>.
You may want to refer to the following individual bug pages: libnss-myhostname, libnss-mymachines, libnss-resolve, libnss-systemd, libpam-systemd, libsystemd-dev, libsystemd-shared, libsystemd0, libudev-dev, libudev1, systemd-boot, systemd-boot-efi, systemd-container, systemd-coredump, systemd-dev, systemd-homed, systemd-journal-remote, systemd-oomd, systemd-resolved, systemd-standalone-sysusers, systemd-standalone-tmpfiles, systemd-sysv, systemd-tests, systemd-timesyncd, systemd-userdbd, udev.
You might like to refer to the systemd package page, or to the Package Tracking System.
If you find a bug not listed here, please report it.