JMS Promotion Box is the most powerful module that help you easily show messages to users in front-end in positions: top, bottom, top-left, top-right, bottom-left, bottom-right.
JMS Popup is the most powerful module that help you easily show messages to users. With its options, you can have the popup that you want in a minute.
Jms Responsive Menu is powerful responsive menu system for Joomla site. It supports 3 type menu for mobile : Dropdown, Off canvas and select box menu
Jms Mega Menu is powerful responsive and mega menu system for Joomla. Easy to manage menu items in backend, support grid menu layout(multiple rows and columns).
JMS Kunena Users is a module to show online user from Kunena forum, it supports showing more options : avatar, rank, social, post, thanks,...
You want to show your clients's testimonials about your company, JMS Testimonials module is best choice with many cool parameters and easy for using.