Accratech, Inc.  www.accratech.com Manufacturer of UL 2601(medical and laboratory) listed uninterruptible power supplies (UPS)).

Advanced Power Technology  www.advancedpower.co.uk Distributor of APC power protection products. UK based.

AEC  www.aeceuro.co.uk Manufactures uninterruptible power supplies, battery backup products, inverters, rectifiers and generators. Suppliers to the telecommunications, networking and other industries. Based in UK.

Always On UPS Systems  www.alwaysonups.com Manufacturer of backup power and power quality products. This includes line interactive and online UPSs, PLC power and data protectors, TVSS filters and isolating line filters. Based in Canada.

American Power Conversion Corp.  www.apc.com Manufacturer of a broad range of commercial uninterruptible power supplies, including standby, line interactive and online technologies.

AMETEK Solidstate Controls  www.solidstatecontrolsinc.com Manufactures industrial grade single phase UPS products from 10 to 125 kVA and three phase from 10 to 100 kVA that are qualified for the nuclear power industry.

Amsdell Inc.  www.amsdell.com Manufactures internal switching power supply that can accept battery backup. Based in Canada.

Apollo Power Technology Co., Ltd.  www.apollotw.com Manufacturer of commercial line interactive and online UPS. Based in Taiwan.

ARTronic Elektronik Co.  www.artronic.com.tr Distributor of commercial line interactive and online UPS 400 VA - 1000 kVA. Based in Turkey.

Bharath Power Conversion  www.bpcups.com UPS manufacturing company based in Taminadu, India. Online product specifications and list of clients.

Bright Electro Control Equipments Private Limited  www.beccbe.com Manufacturer and exporter all kind of UPS and uninterrupted power supply. India.

CBS Group  www.cbsgroupuk.com Distribution and installation of standby power systems including UPS up to 700 kVA. Based in the UK.

Cell Power Co., Ltd.  www.cellpower.com.tw Manufacturer of line interactive UPS from 600VA to 1000 VA. Based in Taiwan.

Controlled Power Company  www.controlledpwr.com Manufactures a wide range of UPS and power conditioning products from 250 VA to 500 kVA.

Convergence Power Systems  convergenceups.net Manufactures offiline UPS from 500 VA to 2000VA and online units from 500 VA to 200 kVA, plus square wave and sine wave inverters. India based.

Critical Power Exchange  www.criticalpowerexchange.com/ups.htm Distributor of surplus and refurbished UPS from 2 to 750 kVA of various makes.

Cyberex LLC  www.cyberex.com Manufactures online UPS from 10 kVA to 150 kVA plus digital static transfer switches.

Digital Data Systems  www.ddsystems.co.za Designs, manufacturers and licenses UPS products. Based in South Africa.

DirectUPS  www.directups.com Reseller of off line, line interactive and online UPS products up to 1500 VA.

Durapower Manufacturing Ltd.  www.durapower.co.za Manufactures uninteruptible power supplies. From South Africa.

Eaton Powerware  www.powerware.com Manufacture of consumer and commercial UPS units and related products

Effekta  www.effekta.com/html/english.html Manufactures online, line-interactive and standby UPS systems in a power range from 400 VA to 40 KVA. From Germany.

Elrond Komponent AB  www.elrondcomponent.com Manufactures offline, line interactive and online UPS from 650 VA to 600 kVA. Based in Sweden.

Emerson Network Power  www.gotoemerson.com Manufacturers uninterruptible power supplies, batteries, and accessories.

Encore Power and Environmental, LLC  www.dsaencore.com Reseller of generators, UPS systems, power distribution units, and high rate batteries.

Energy Technologies, Inc.  powersource.net Manufactures rugged UPS, power conditioning and distribution, frequency conversion and computer peripherals for military, industrial and telecommunication applications.

Falcon Electric  www.falconups.com Manufactures and distributes uninterruptible power supplies.

Flipper Clipp Power Systems Pvt. Ltd.  www.flipperclippups.com Manufacturer of commercial line interactive and online UPS systems from 500 VA to 150 kVA. Based in India.

Foshan Panpower Science & Technology Co., Ltd.  www.pan-ups.com.cn Manufacture of offline, line interactive and online UPS products from 500 VA to 30 kVA. Based in China.

Franek Technologies  www.franek-tech.com Manufactures UPSs for medical, scientific and research applications.

Gutor Electronic ltd.  www.gutor.com Manufacturer of industrial grade online UPS ranging from 5 to 220 kVA primarily for the petro-chemical industry. Based in Switzerland.

Harland Simons  www.harlandsimonups.com Manufacturer of online UPS from 700 VA to 3 kVA. Also a reseller for other UPS up to 1000 kVA. Based in the UK.

H.M. Cragg Company  www.hmcragg.com Distributor of Powerware UPS systems and associated batteries. Also offer stationary, telecom and standby batteries. Based in Minnesota, United States.

Ideal Power Co. Ltd.  www.idealups.com.tw Manufacturer of offline, line interactive and online UPS products primarily for consumer and commercial use. Based in Taiwan.

Inovatec S.p.A  www.inovatec.it Manufacturer of line interactive and online UPS from 350 VA to 800 kVA. Based in Italy.

Intellipower, Inc.  www.intellipower.com Manufacturer of desktop and rackmount online UPS products that serve commercial, industrial and military markets. Products feature intelligent monitoring and control of the input and output parameters.

Invensys Power Systems  www.invensys.com Design and manufacturing of 3phase and 1phase UPS from 10 to 400kVA.

Invensys Power Systems S.p.A.  www.powerware.com/Italia Offers power protection with 1ph and 3ph from 300VA to 400kVA including inverter,rectifier,static switch.

Jeidar Electronics  www.jeidar.com Manufacturer of uninterrupted power system in China.

JEMA  www.grupojema.com Spanish manufacturer specializing in custom converters and UPS equipment from 10 to 1300 kVA. Site is in Spanish and English.

JT Packard & Associates, Inc.  www.jtpackard.com Offers power quality solutions including Uninterruptible Power Systems, battery maintenance, generators, power quality audits and electrical cabling plans. In USA.

Key Source Limited  www.keysource.co.uk Distributor of ups, standby generators and telecom power protection.

Kstar Group  www.kstarpower.com Uninterruptible power supplies manufacturing in China.

Marathon Power Inc.  www.marathon-power.com Power protection products including single-phase uninterruptible power supplies (UPS) from 300VA to 3kVA designed for niche market, custom and OEM applications in commercial and industrial environments.

Medes Electronics  www.medes-ups.com Manufacturer of 10 to 800 kVA, 3 phase UPS products primarily for the European voltages and frequencies. UPS line includes chargers, rectifiers, inverters and static switch units. A manufacturer for high reliability UPS system. Provides battery charger and discharger, DC rectifer, and static transfer switch.

Metapo  www.metapo.com Manufacturer of commercial offline and online UPS from 400 VA to 60 kVA. Based in China.

MGE UPS Systems  www.mgeups.com Manufacturer of a wide range of single phase and three phase UPS products used in applications from PCs to factories. Headquarted in France with worldwide operations.

Minuteman UPS  www.minutemanups.com Manufacturer of uninterruptible power supply (UPS) products from 300 VA to 10 KVA, power management software, and remote power management systems controlled by phone or network.

OnLine Power, Inc.  www.onlinepower.com Power protection products (UPS, power conditioners, and voltage regulators) are directly applicable to the telecommunication industry (Microcell protection in case of power outage or voltage variations).

Onlitech  www.onlitech.com UK based suppliers of UPS uninterrupted power supplies, and similar products including backup generators and bypass switches, designed to prevent power loss.

OPTI International Corp.  www.opti-ups.com Manufacture of UPS units ranging from 200 VA to 120 kVA.

Osages Energies  www.osage-energies.com Sales and support of emergency power systems, residential power equipment, UPS batteries.

Power Master Technology Co.  www.powermaster.com.tw Manufacturer of inverter, UPS, AVR, charger.

Power Protection Partners  www.think3p.com Distributor of reconditioned uninterruptible power supplies and replacement batteries.

Power Quality Inc  www.powerqualityinc.com Provides power conditioners, uninterruptible power supplies, power recorders and analyzers. Also offered are consulting services to analyze the customer's electrical power quality and grounding.

Power Systems Specialists Inc.  www.p-s-s.com provides uninterrupted electrical power.

Power Up Technologies  www.poweruptech.com Distributes UPS, TVSS, inverters, power conditioners, power supplies, lighting inverters and outdoor UPS.

Powercom USA  www.powercom-ups.com A UPS manufacturer in Taiwan.

Powerking Co., Ltd.  www.powerking.ttnet.net Manufacture of lead-acid batteries and uninterrupted power system.

Powerlink Corporation  www.powerlink.com Representing manufacturers of UPS systems, TVSS, harmonic cancellation transformer, static transfer switches, and DC power systems.

Powerstar Inc  www.powerstarinc.com/ss6000.html Stainless steel UPS

Powertechnique UK - Uninterruptible Power Supplies  www.powertechnique.co.uk UK based company specialising in uninterruptible power supplies and related items including bypass switches, networks enclosures and generator sets

Professional Power Protection  www.pppups.com Provides uninterruptable power supplies, ups, and tvss, for the IT, aerospace, software development, scientific laboratories, banking, federal agencies and military facilities, manufacturing, and commercial aviation industries.

Sagar Electricals  electrogard.com Manufacturers and exporters of automatic voltage stabilizer, UPS systems, inverters, constant voltage transformers.

Sarel Electronics Ltd.  www.sarelelectronics.com Offer uninterruptible power supply, transfer switch, bypass switches for the data processing and network services market.

Secure Power Solutions, Inc.  www.securepwr.com Sales, installation, and service of UPS systems and DC power supplies.

Siel Group  www.sielups.com Specialized in uninterruptible power supply, power protection and batteries.

Silicon Power Corporation  www.siliconpower.com Manufacture of medium voltage and low voltage static transfer switches.

SOCOMEC Group  www.socomec.com Manufacturer specializing in the distribution, control and availability of the power supply to low voltage energy systems.

SoftSwitching Technologies  www.softswitch.com Manufacturer of UPS and power disturbance equipment.

Soltec Technology Co., Ltd.  www.soltec.com.tw Manufacturer of uninterruptable power supplies.

Sterling Oakes Services, Inc.  www.sterlingoakes.com Complete UPS and Power Protection Specialists. Sales installation and service of APC UPS, MCG Power conditioning, RPM Power Meters, ATI Tectonics Lightning Protection, Minuteman UPS, Catalyst Power and Power Technologies Products.

Stream Line Power Systems Pvt. Ltd.,  www.streamlineups.com Manufacturer of uninterupted power supply. From India.

Sure Power, Inc.  www.sure-power.com A supplier of quality battery products and services for uninterruptible power supplies.

24/7 Technology Inc.  247technology.com Offers repair and maintenance for uninterruptible power systems (UPS), batteries and generators. Descriptions of offered services, list of available used equipment for sale.

Titan Power Inc.  www.titanpower.com Providing power protection services, uninterruptible power equipment and computer room design and construction.

Total Concept Sales  www.smartups.com Source of technical information on how to choose and size UPS, battery backup, and other equipment.

Tripp Lite  www.tripplite.com Manufacturer of UPS, surge suppressors, and other power protection devices. New product showcase and an interactive UPS sizing guide.

UIS Abler Electronics Co., Ltd.  www.uisabler.com.tw Manufactures a wide range of line interactive and online UPS units from 350 VA to 10 kVA. Based in Taiwan.

Umart Electrics (Shenzhen) Co., Ltd  www.ups-avr.com Manufactures line interactive and online UPS from 300 VA to 3600 kVA; AVR from 300 VA to 1000 kVA. Also transformers for electronic and industrial appliances, and inverters. Based in China and Taiwan.

Uninterruptible Power Products, Inc.  www.uppi-ups.com Manufactures 4 kVA to 20 kVA industrial grade UPS and power conditioner products. Also supplies replacement batteries for various other vendors' equipment.

Uninterruptible Power Supplies Ltd  www.upspower.co.uk Manufacturers UPSs for computer applications.

Universal Power Systems, Inc.  www.upsi.com Offers transportable and fixed site uninterruptible power supply systems.

UPS For Less  www.upsforless.com Reseller of reconditioned UPS units

UPS Frequently Asked Questions  www.jetcafe.org/~npc/doc/ups-faq.html A collection of frequently asked questions about UPS units

Yutaka Electric Manufacturing Co, Ltd. (YEC)  www.yutakadenki.jp/english/top-e/indexe.html Manufacturer of UPS and power supplies primarily serving commercial and oem markets, primarily in Japan. UPS product line features true online double conversion technology.