Arxis is led by partners David Cieslak and Bob Gaby. The software company's products include AvidXchange's Purchase Order, Invoice and Payment applications, along with Bill Services. Stavros Liakakos, VP of business development for strategic platforms, said AvidXchange has worked to expand its channel by investing in new processes, technology and talent. Among the new employees in that program is veteran channel executive, Bob Lewis who joined the company as VP of strategic channels and alliances in February.