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 is an industry leader in the manufacturing of innovative optical fiber and optical cable; cost effective ribbon-configured solutions; cable assemblies; fiber management systems; fusion technology; and FutureFLEX® Air-Blown Fiber Cabling Systems.
 We serve customers in the public communication and enterprise network markets, as well as equipment manufacturers, helping them to expand their bandwidth opportunities through tailored network solutions.
From the network backbone to fiber-to-the-home/business and other Fiber-To-YouSM solutions, we partner with you to create your ideal, tailored solutions that meet your most challenging bandwidth management, fiber deployment, and outside plant requirements.
Sumitomo’s US headquarters in Research Triangle Park, NC, was established in 1983. Our capabilities are expansive, thanks to the global resources of Sumitomo Electric Industries Ltd. (SEI). Established in 1897, SEI has become a worldwide force in advanced research, development, and manufacture of fiber optic products.
Because we are vertically integrated with key technologies such as optical fiber, MT ferrules, and fusion equipment manufacturing, you have the advantage of ensured high performance, quality, and reliability when integrating our cable, connectors, fiber management systems, and fusion technology.
You’ll benefit from Sumitomo’s engineering expertise and manufacturing excellence. We help you discover options, explore cost efficiencies, reduce risks, and pioneer first-to-market solutions. You’ll profit from our high degree of flexibility as we work to minimize costs, promote rapid deployment, and enhance your productivity.
 And since we’re a privately-held company with a history of solid performance, our primary commitment is to you — our customer.
 We’re TL 9000 / ISO 9001 certified to ensure quality excellence of our cable, assemblies, fusion splicers, and interconnect and fiber management systems.
Firsts
Sumitomo is innovation-driven, as you’ll see by our substantial list of firsts.
- Introduced the first peelable ribbon cable (now the industry standard) in the US
- Introduced the industry’s first 864 count cable made with 36-fiber ribbons
- Introduced the first mass fusion splicing equipment in the US
- First high-density fiber management system to pass high-density OC-192 Telcordia testing
- Developed the first 432-fiber hostile-environment cable
- Achieved first RUS approval of ribbon cable
- Invented the unique Vapor Phase Axial Deposition (VAD) process of manufacturing highly reliable optical fiber
- Helped pioneer the miniaturization of backplane connectors
- First licensee to acquire the MPX multi-fiber technology and first to pass stringent intermateablity testing, which led to the quick market introduction of the Sumitomo LIGHTRAY MPX™ multifiber interconnect system
- Developed optical Z-Fiber that exhibits the world’s lowest transmission loss
- Introduced the United States’ first and only UL riser and plenum-rated FutureFLEX® Air-Blown Fiber Cabling System
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