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

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

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

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/

RAN Systems Home Page
RAN Systems Inc. provides call center test and monitoring equipment and solutions to the 911 emergency management industry.
http://www.ransystemsinc.com/

Masterclock
Masterclock® manufactures high quality - inexpensive - Digital Clock, Digital Wall Clock, Analog Clock, School Clock, displaying Accurate Time, Exact Time, Precision Time, NIST Time, using World Time Server, Time Server, NTP Server, Internet Time Server.
http://www.masterclock.com

The American Time and Signal Company
Specializes in synchronized master and wireless clock systems, replacement clocks, protective guards, time recorders and signs.
http://www.atsclock.com/

Auto Time Solutions Ltd
Autotime Solutions - We are the UK's leading supplier of time management systems, offering solutions to a wide range of businesses and organisations both in the public and private sectors.
http://www.autotime.co.uk

Ocean Clocks
Ocean Clocks produce unique tide clocks that are designed and localised for specific ports, coastal towns and regions of many countries.
http://www.ocean-clocks.com/

Clocks of Rocks
Handcrafted and imprinted granite, slate, and stone wall and desk clocks.
http://www.clocksofrocks.com/