There are a few different issues which have to be resolved when trying to tackle youtube, namely, how you want to do it. You can, for instance, pay an established youtuber to push your brand to their viewers, which can be done either in the form of a product placement, or paid for review, or you can pay youtube for advertisements, much like on TV, which play before a youtube video with a certain level of viewership. Lastly, and a good option for any business, of any size, you can create your own youtube account.
Creating your own youtube account can be a great way to show off original content, and you can also embed the videos on your website, giving you an SEO benefit too. Youtube can be a great way of providing customers and other interested parties with information and step by step plans for using your products, which as people move online more and more for commerce, may start to become even more important as it replaces face to face instructions.