Bootstrap 4 components, powered by Angular
All the Bootstrap widgets (ex. carousel, modal, popovers, tooltips, tabs, ...) and several additional goodies ( datepicker, rating, timepicker, typeahead).
All code is tested (almost 100% test coverage) and all changes reviewed. We are not cutting corners.
All the widgets are accessible. We use proper HTML elements and required aria attributes. Keyboard navigation and focus management works as expected.
We've created angular-ui/bootstrap and have spent several years doing widget development. A number of team members are core Angular contributors.
We give back to the community by contributing to projects we build upon (Angular, Bootstrap). We support people on Stack Overflow.