Efelle is an award winning and nationally recognized interactive advertising and software development firm based out of Seattle, Washington that delivers highly functional and engaging web sites, web applications, eCommerce, graphic design, and online marketing solutions. Founded in 2005, Efelle has grown into an online marketing leader, with a successful history of working with companies of all sizes, from start-ups to fortune 100, as well as building partnerships with some of the largest ad agencies in Washington state. Efelle has worked with over 460 clients in 28 states who have a combined annual revenue of over $45BB.