Microblogging vs. Blogging
Thus, the first question you need to ask yourself is what your company is setting out to accomplish. As a form of social media where you can interact with consumers, Tumblr may be a good option. It is simple and extremely easy to update, and thus can be run by almost anyone in a very short amount of time. It also has very slick and easy to use ways to integrate and interact with other social media platforms like Facebook and Twitter. This can also be a very attractive option if you don't want to devote the time, resources and manpower needed to run a more full blog.
That having been said, Tumblr is lacking very much in terms of features and the ability to customize your blog. A blogging platform such as Wordpress offers much more in terms of themes, plugins, and the ability to create a more fully featured and customized blog. With other blogging platforms, for instance, you can design your blog so that it has the same design and layout as your entire website, which is very difficult to do with Tumblr.
So if you are looking for a platform where you can create your own blog with your own unique layout and the ability to utilize tons of features and customization, you may want to look elsewhere. If, however, you are looking for a slick and easy way to write short posts, possibly with media such as photos or videos, Tumblr is a good choice.