Customize WP-admin lets you easily remove any menu or submenu from the admin sidebar, change the footer at wp-admin, and change the image and link of Wordpress on wp-login.

Allows you to control the number of posts displayed in lists in the WP Admin.

Login Protection - Email login and phone login with SafePassword Login Security protect your users login and admin login by hackers against bruteforce attacks.

Foundation Press offers the Foundation Framework styles with WordPress Shortcodes. It makes adding styles (Tabs, Buttons, Grid...) pretty easy.

This plugin allows you find WordPress admin menu items easy.