Yes. More than half of all web searches are from mobile devices, such as phones and tablets.
As a result, Google has announced that it will index using mobile enablement a core SEO ranking criteria.

All websites we build are mobile-enabled, and we can help you with this if it is a challenge for your business.

We've even managed to make old static HTML based website mobile-friendly, some of them are ranked in the search engines above all of their competition