SDM is seeking to identify the largest alarm dealers in the security industry, in order to rank them by their recurring monthly revenue and publish the list — the 18th annual SDM 100 — in SDM’s May 2008 edition.

If you believe that your company may qualify to be ranked in the SDM 100, visit to download an application, or contact the editor, Laura Stepanek, at (630) 694-4027 or by e-mail to