Wait... what?

$ top --version
top from procps-ng 4.0.5-dirty

The following utilities are provided by procps:

• free - Report the amounts of free and used memory in the system
• hugetop - Report hugepage usage of processes and the system as a whole
• kill - Send a signal to a process based on PID
• pgrep - List processes based on name or other attributes
• pkill - Send a signal to a process based on name or other attributes
• pmap - Report the memory map of a process
• ps - Report process information including PID and resource usage
• pwdx - Report the current working directory of a process
• skill - Obsolete version of pgrep/pkill
• slabtop - Display kernel slab cache information in real time
• snice - Renice a process
• sysctl - Read or write kernel parameters at run-time
• tload - Graphical representation of system load average
• top - Dynamic real-time view of running processes
• uptime - Display how long the system has been running
• vmstat - Report virtual memory statistics
• w - Report logged in users and what they are doing
• watch - Execute a program periodically, showing output fullscreen

https://gitlab.com/procps-ng/procps

Oh, so these guys manage top and a few other common utilities.