As your user, you only can see your launchd bootstrap in OSX. You live in the Aqua domain. So, to see everything that is running because of you:
Will show you what is loaded. That's not all, however.
launchctl has many options, such as:
bslist [PID | ..] [-j]
This prints out Mach bootstrap services and their respective
states. While the namespace appears flat, it is in fact hierar-
chical, thus allowing for certain services to be only available
to a subset of processes. The three states a service can be in
are active ("A"), inactive ("I") and on-demand ("D").
If [PID] is specified, print the Mach bootstrap services avail-
able to that PID. If [..] is specified, print the Mach bootstrap
services available in the parent of the current bootstrap. Note
that in Mac OS X v10.6, the per-user Mach bootstrap namespace is
flat, so you will only see a different set of services in a per-
user bootstrap if you are in an explicitly-created bootstrap
If [-j] is specified, each service name will be followed by the
name of the job which registered it.
So as your user:
launchctl bslist -j
Will give you everything that is loaded into launchd currently, anything actually running will have an 'A' beside it.
A com.apple.cookied (com.apple.cookied)
D com.apple.coreservices.quarantine-resolver (com.apple.coreservices.uiagent)
Here cookied (wtf?) is running.
Below, the quarantine resolver is loaded, but not actually running.
Now, perhaps, you may be inclined to try something like:
sudo launchctl list
Thinking that as root, you will see everything. No. Root lives down in the System domain, and can not really see you clearly. You will get things running in the System, or daemon domain.
Reading the man page, you'll find:
sudo launchctl bstree -j # This should show you everything.
As the command that gives you the entire Mach Tree that is running on the system.
Activity monitor shows you some things, but I don't really like to depend on it.