AngularJS is a JavaScript-based open-source web application framework led by the Angular Team at Google.
Google Tag Manager is a tag management system (TMS) that allows you to quickly and easily update measurement codes and related code fragments collectively known as tags on your website or mobile app.
Imperva is a cyber security software and services company for networking, data, and application security.
PayPal is an online payments system that supports online money transfers and serves as an electronic alternative to traditional paper methods like checks and money orders.