D3.js - D3.js is a JavaScript library for manipulating documents based on data. D3 helps you bring data to life using HTML, SVG, and CSS.
AnswerRocket - AnswerRocket is a search-powered analytics that makes it possible to get answers from business data by asking natural language questions.
Chart.js - Easy, object oriented client side graphs for designers and developers.
DevicePilot - DevicePilot is a universal cloud-based software service allowing you to easily locate, monitor and manage your connected devices at scale.
Google Charts - Interactive charts for browsers and mobile devices.
Omniscope - Visokio is developer of Omniscope - Business Intelligence app for high-performance data processing, analytics and data visualisation.