systemctl --type=service

systemctl --type=service --all
  UNIT                                       LOAD      ACTIVE   SUB     DESCRIPTION

  accounts-daemon.service                    loaded    active   running Accounts Service
  acpid.service                              loaded    active   running ACPI event daemon
  archlinux-keyring-wkd-sync.service         loaded    inactive dead    Refresh existing keys of archlinux-keyring
  auditd.service                             loaded    inactive dead    Security Auditing Service
  avahi-daemon.service                       loaded    active   running Avahi mDNS/DNS-SD Stack
● clamav-freshclam.service                   loaded    failed   failed  ClamAV virus database updater
  colord.service                             loaded    active   running Manage, Install and Generate Color Profiles
  cups.service                               loaded    active   running CUPS Scheduler
  dbus.service                               loaded    active   running D-Bus System Message Bus
  dm-event.service                           loaded    inactive dead    Device-mapper event daemon
● ebtables.service                           not-found inactive dead    ebtables.service
  emergency.service                          loaded    inactive dead    Emergency Shell
  firewalld.service                          loaded    active   running firewalld - dynamic firewall daemon
  getty@tty1.service                         loaded    inactive dead    Getty on tty1
  initrd-cleanup.service                     loaded    inactive dead    Cleaning Up and Shutting Down Daemons
  initrd-parse-etc.service                   loaded    inactive dead    Mountpoints Configured in the Real Root
  initrd-switch-root.service                 loaded    inactive dead    Switch Root
  initrd-udevadm-cleanup-db.service          loaded    inactive dead    Cleanup udev Database
  ip6tables.service                          loaded    inactive dead    IPv6 Packet Filtering Framework
● ipset.service                              not-found inactive dead    ipset.service
  iptables.service                           loaded    inactive dead    IPv4 Packet Filtering Framework
  kmod-static-nodes.service                  loaded    active   exited  Create List of Static Device Nodes
  ldconfig.service                           loaded    inactive dead    Rebuild Dynamic Linker Cache
  lvm2-lvmpolld.service                      loaded    inactive dead    LVM2 poll daemon
  lvm2-monitor.service                       loaded    active   exited  Monitoring of LVM2 mirrors, snapshots etc. using dmeventd or progress polling
  mkinitcpio-generate-shutdown-ramfs.service loaded    inactive dead    Generate shutdown-ramfs
  modprobe@configfs.service                  loaded    inactive dead    Load Kernel Module configfs
  modprobe@dm_mod.service                    loaded    inactive dead    Load Kernel Module dm_mod
  modprobe@drm.service                       loaded    inactive dead    Load Kernel Module drm
  modprobe@fuse.service                      loaded    inactive dead    Load Kernel Module fuse
  modprobe@loop.service                      loaded    inactive dead    Load Kernel Module loop
  NetworkManager-wait-online.service         loaded    active   exited  Network Manager Wait Online
  NetworkManager.service                     loaded    active   running Network Manager
  nftables.service                           loaded    inactive dead    Netfilter Tables
● nslcd.service                              not-found inactive dead    nslcd.service
  pkgstats.service                           loaded    inactive dead    Submit pkgstats
  plymouth-quit-wait.service                 loaded    active   exited  Hold until boot process finishes up
  plymouth-quit.service                      loaded    active   exited  Terminate Plymouth Boot Screen
  plymouth-read-write.service                loaded    active   exited  Tell Plymouth To Write Out Runtime Data
  plymouth-start.service                     loaded    active   exited  Show Plymouth Boot Screen
  plymouth-switch-root.service               loaded    inactive dead    Plymouth switch root service
  polkit.service                             loaded    active   running Authorization Manager
● rc-local.service                           not-found inactive dead    rc-local.service
  reflector.service                          loaded    inactive dead    Refresh Pacman mirrorlist with Reflector.
  rescue.service                             loaded    inactive dead    Rescue Shell
  rtkit-daemon.service                       loaded    active   running RealtimeKit Scheduling Policy Service
  sddm.service                               loaded    active   running Simple Desktop Display Manager
  shadow.service                             loaded    inactive dead    Verify integrity of password and group files
● syslog.service                             not-found inactive dead    syslog.service
  systemd-ask-password-console.service       loaded    inactive dead    Dispatch Password Requests to Console
  systemd-ask-password-plymouth.service      loaded    inactive dead    Forward Password Requests to Plymouth
  systemd-ask-password-wall.service          loaded    inactive dead    Forward Password Requests to Wall
  systemd-battery-check.service              loaded    inactive dead    Check battery level during early boot
  systemd-binfmt.service                     loaded    active   exited  Set Up Additional Binary Formats
  systemd-boot-random-seed.service           loaded    active   exited  Update Boot Loader Random Seed
  systemd-firstboot.service                  loaded    inactive dead    First Boot Wizard
  systemd-fsck-root.service                  loaded    inactive dead    File System Check on Root Device
  systemd-hwdb-update.service                loaded    inactive dead    Rebuild Hardware Database
  systemd-journal-catalog-update.service     loaded    inactive dead    Rebuild Journal Catalog
  systemd-journal-flush.service              loaded    active   exited  Flush Journal to Persistent Storage
  systemd-journald.service                   loaded    active   running Journal Service
  systemd-logind.service                     loaded    active   running User Login Management
  systemd-machine-id-commit.service          loaded    inactive dead    Commit a transient machine-id on disk
  systemd-modules-load.service               loaded    active   exited  Load Kernel Modules
  systemd-oomd.service                       loaded    inactive dead    Userspace Out-Of-Memory (OOM) Killer
  systemd-pcrmachine.service                 loaded    inactive dead    TPM2 PCR Machine ID Measurement
  systemd-pcrphase-initrd.service            loaded    inactive dead    TPM2 PCR Barrier (initrd)
  systemd-pcrphase-sysinit.service           loaded    inactive dead    TPM2 PCR Barrier (Initialization)
  systemd-pcrphase.service                   loaded    inactive dead    TPM2 PCR Barrier (User)
  systemd-random-seed.service                loaded    active   exited  Load/Save OS Random Seed
  systemd-remount-fs.service                 loaded    active   exited  Remount Root and Kernel File Systems
  systemd-repart.service                     loaded    inactive dead    Repartition Root Disk
  systemd-resolved.service                   loaded    active   running Network Name Resolution
  systemd-rfkill.service                     loaded    inactive dead    Load/Save RF Kill Switch Status
  systemd-sysctl.service                     loaded    active   exited  Apply Kernel Variables
  systemd-sysext.service                     loaded    inactive dead    Merge System Extension Images into /usr/ and /opt/
  systemd-sysusers.service                   loaded    inactive dead    Create System Users
  systemd-timesyncd.service                  loaded    active   running Network Time Synchronization
  systemd-tmpfiles-clean.service             loaded    inactive dead    Cleanup of Temporary Directories
  systemd-tmpfiles-setup-dev-early.service   loaded    active   exited  Create Static Device Nodes in /dev gracefully
  systemd-tmpfiles-setup-dev.service         loaded    active   exited  Create Static Device Nodes in /dev
  systemd-tmpfiles-setup.service             loaded    active   exited  Create Volatile Files and Directories
  systemd-udev-settle.service                loaded    inactive dead    Wait for udev To Complete Device Initialization
  systemd-udev-trigger.service               loaded    active   exited  Coldplug All udev Devices
  systemd-udevd.service                      loaded    active   running Rule-based Manager for Device Events and Files
  systemd-update-done.service                loaded    inactive dead    Update is Completed
  systemd-update-utmp.service                loaded    active   exited  Record System Boot/Shutdown in UTMP
  systemd-user-sessions.service              loaded    active   exited  Permit User Sessions
  systemd-vconsole-setup.service             loaded    active   exited  Virtual Console Setup
  udisks2.service                            loaded    active   running Disk Manager
  upower.service                             loaded    active   running Daemon for power management
  user-runtime-dir@1000.service              loaded    active   exited  User Runtime Directory /run/user/1000
  user@1000.service                          loaded    active   running User Manager for UID 1000

LOAD   = Reflects whether the unit definition was properly loaded.
ACTIVE = The high-level unit activation state, i.e. generalization of SUB.
SUB    = The low-level unit activation state, values depend on unit type.
93 loaded units listed.
To show all installed unit files use 'systemctl list-unit-files'.