| HM Cragg Company
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| Distributor of Powerware UPS systems and associated batteries. Also offer stationary, telecom and standby batteries. Based in Minnesota, United States. |
| Ideal Power Co Ltd
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| Manufacturer of offline, line interactive and online UPS products primarily for consumer and commercial use. Based in Taiwan. |
| Inovatec SpA
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| Manufacturer of line interactive and online UPS from 350 VA to 800 kVA. Based in Italy. |
| Intellipower Inc
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| 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. |
