Electric Time Company, Inc
Electric Time Company of Medfield, Massachusetts, USA, manufactures quality standard and custom made clocks. We are the world's oldest manufacturer of tower clocks and street clocks
http://www.electrictime.com/

Elderhorst Bells
Manufacturer of custom designed tower clocks, street clocks, custom interior clocks and movements and cast bronze swinging, stationary bells and digital ringing bells. Hand crafted since 1893, Elderhorst Bells is synonomous with fine craftsmanship.
http://www.elderhorstbells.com

Maas-Rowe Carillons Inc.
Manufacturer and supplier of bells, carillon systems, chimes, church bell systems, tower clocks, and wwvb atomic time tower clock interfaces. Includes sound files of sample musical selections .
http://www.maasrowe.com/

Global Union Industries Co Ltd
Manufacturer of clocks such as wall clocks, LCD clocks, frosted translucent alarm clocks and personal alarms.
http://www.globalunion-ind.com.hk

Unitime Clock Systems
Manufacture a range of tower and street clocks. Includes a photograph gallery, product specifications, and FAQs.
http://www.uclocks.com/e/brief.htm

National Time & Signal Corporation
Manufacturer of analog and digital clocks, master clocks, and large outdoor clocks for businesses, schools, and other institutions.
http://www.natsco.net

St. Paul Tower
St. Paul Tower specializes in tower erection, maintenance, antenna installation, build to suit, and turn key tower projects. Metro Aerial provides tower leasing services.
http://www.stpaultower.com/

Balzer Family Clock Works
The Balzer Family, clockmakers and watchmakers since 1970, have specialized in the restoration of tower clocks since 1985.
http://www.balzerclockworks.com/

Moser-Baer SA
Manufacturer of industrial time systems such as master clocks, time centers, indoor and outdoor clocks, facade clocks, GPS and DCF radio code receiver, NTP time server and synchronisation software.
http://www.mobatime.com

Tower Services, Inc.
Tower Services, Inc. - Providing Tower Services Including Cellular tower construction, Cellular tower maintenance, Cellular tower site installation, Broadcast tower maintenance, Broadcast tower installation, Inspections, Cellular Tower Construction, Installation, Microwave Installation, Maintenance, PCS & Cellular, Line Testing and Broadcast
http://www.towerservicesinc.com/