The Excell management team has a tremendous amount of experience in wireless site development and construction. We have been involved with thousands of sites and this experience allows us to understand our client's needs and turn project issues into simple business decisions. These industry veterans proudly bring this expertise to each and every client ensuring quality work and the highest standard of customer service.

Michael A. Sandifer, Senior Managing Director


A member of the Excell team since 2002, Michael currently serves as Senior Managing Director for Excell Communications. Michael’s responsibilities include the fiscal operations of the company and the day to day functional operations of Excell’s Construction Services division. Prior to joining Excell Communications in 2002, Michael held various positions at Verizon Wireless (previously GTE Wireless/Mobilnet) with responsibilities ranging from real estate to manager of network implementation for cell sites. In 1999/2000, Michael also served as the network Team Leader for the transition of over 2300 GTEW owned towers to Crown Castle. Michael is a Board Member and current co-Vice President of the Alabama Wireless Association.

Email: msandifer@excellcommunications.com

Daniel J. Seidel – Senior Managing Director


Dan joined Excell in 2000, and since that time has been responsible for Excell’s professional services and site development activities. In 2010, he assumed formal responsibility for client initiatives, sales, corporate strategy, and business development. He is also responsible for Excell’s broadband services division. Dan has over 15 years of experience in the wireless industry. Prior to joining Excell, Dan held the role of Sr. Implementation Manager for Alabama/NW Florida for Bellsouth Mobility, and was also Project Director for SBA, Inc. for the initial Sprint buildout of north Alabama. Dan is a graduate of the University of Alabama, and has an MLA (ABT) from Auburn University, Montgomery. He was a founding board member of the Alabama Wireless Association and served as its Membership Chairman until 2008.

Email: danseidel@excellcommunications.com

Nicole Nighman, Managing Director, Site Development Services Division


Nicole joined the team in 2007 as a Project Manager serving various Excell clients. In 2010, she was promoted to Director of Project Management with responsibility for project execution, staffing, and client relations. In 2013, she was promoted to Managing Director of the Site Development Services Division, with responsibility for all professional services in the division, including project management, real estate and site acquisition, engineering, environmental, and regulatory services. Nicole is a licensed real estate broker and has over 13 years of wireless experience. She began her wireless career in 2000 as Contracts Manager for Foresite, LLC in Birmingham, Alabama and transitioned to OptaSite Towers in 2005, where she was the Regional Account Representative and Project Manager for all services in the Southeast.

Email: nnighman@excellcommunications.com