Michael

Provides a new dashboard widget to display all registered dashboard widgets and enables to remove the other dashboard widgets individually 
for all or selected roles (i.e. even from the screen options) in order to avoid irritation of your clients or other site contributors. 
When checked indiviually, widgets will be highlighted for identification of unknown widget names. 
The intention is to avoid confusion how to handle the screen options to not show or how to interpret unknown or uninteresting dashboard widget content. 
This plugin is self explanatory and can be accessed through the admin dashboard.

Dashboard Widgets Control

Displays all registered dashboard widgets and enables to remove them individually for all or for selected roles (clients or other site contributors).

dxladner

Display your Clients with pride. This plugin displays your client’s logo in a page, post using a shortcode or use the custom widget. Attach your client’s website URL to the Logo for added information. Administrator enters their clients using a custom post type. They can enter the client’s name/title, logo and their website url. Then using a shortcode you can display your Clients Logo on a page or post. This plugin also comes with a Custom Widget. Just find the widget called ‘Client Showcase’, drag and drop into your themes widget sections. Simple way to display your clients to show your expertise. Do not have Clients. You can use this plugin for displaying multiple different options. Use your creativity.
NEW FEATURES: 
Drag N Drop Ordering and Display your List Option. Using a simple Drag N Drop option, you can arrange your clients in any particular order you choose. Also, you can choose whether 
to display your Clients Horizontally or Vertically. For complete instructions for the NEW FEATURES, please read the complete documentation located at 
our website <a href="https://hyperdrivedesigns.com/free-plugins/client-showcase/" rel="nofollow ugc">Hyperdrive Designs: Client Showcase Documentation</a>. If you decide 
to upgrade the plugin, be sure to read the new documentation as the settings have changed.

Client Showcase

Display your Clients with pride. This plugin displays your client's logo in a page, post using a shortcode or use the custom widget.

Dashboard Widgets Control vs Client Showcase