For more than 30 years, Enguard has consulted to American businesses, preparing complete, accurate utility studies. Now Enguard is sharing that knowledge in Utility Study by Enguard, a self-guided utility study solution. Whether you do your own Utility Study or ask us to help you, you know that you'll have experience, commitment and documentation on your side. When it comes to sales tax exemptions, we leave nothing left to chance to be sure that you leave nothing on the table.