Just about every modern website is built on a content management system. This allows website managers to edit content, embed images and video, publish articles, and manage data without the need to learn web programming.
There are literally hundreds of content management systems (or CMS for short) available today. Some are designed for small businesses, some for mid-sized organizations, and some for large enterprises.
It's important to understand how to choose the right CMS for your organization based on your specific needs. Smaller businesses or websites with simple needs are often a good match for WordPress, which is one of the most popular CMS platforms in the world. There are even large websites built on WordPress because they have the development support to maintain it.
At SpinWeb, we have expertise working with specific industries like financial services, health care, non-profit, professional services, government, and manufacturing. Because of this (and other reasons), we don't use WordPress. In our opinion, it's not the right fit.