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The company

About us

Diamond’s focus relates exclusively to interconnection solutions, within the fiber optics industry. Quality and reliability is crucial and an integral part of overall system performance and longevity. Having been in the fiber optic business for decades, Diamond is a senior player, within the fiber optic business and has achieved a world-class reputation.

Diamond USA’s Billerica, MA production facility, has grown tremendously, since its 1992 inception. We employ state-of-the art methods and techniques, to ensure high performance. Our production facility utilizes Diamond’s patented "Active Core Alignment" process, which minimizes fiber core offset. Value added services are also offered, such as connectorization of active or passive optical components, photonic module and fiber management assembly.

Diamond continues its commitment to provide our customers with the best products and services available in the industry. In order to meet the needs of our customers, exploration of state-of-the art technologies and development of cutting edge products are continuously pursued.


Diamond grew from modest beginnings, having been established in 1958 as a machinist of ultra-hard materials and a manufacturer of industrial jewels, record player styluses, and other high-precision components.
The experience gained in these endeavors, formed the basis of the company's expertise in precision machining and volume production, an expertise which has been systematically expanded and perfected, over the years.


Market leader

The demand for diversification led Diamond into the exciting, growth-intensive field of fiber optics, where the company quickly established an internationally-recognized reputation as an innovator. Diamond is the world's leading manufacturer of high-precision fiber optic products, and successfully serves several markets, in numerous countries, worldwide.



The company's products have won loyal acceptance, from users around the globe, because it is our express goal to meet the highest demands of our customers. Our status, as the preferred supplier, at numerous leading telecom systems, energy, medical, avionic, space and defense manufacturers, attests to the soundness of this strategy. In addition to its broad array of standard products, Diamond is renowned as a dynamic, innovative partner, able to develop custom-tailored solutions, in response to customer demands.


Quality management

The quality of our products and processes are overseen by a quality management system complying with ISO 9001:2008. This certification has been attained in order to make Diamond a more effective and competitive partner to the customers. Additionally, Diamond USA is an ITAR certified company.



Since the dawn of mankind, nature has provided models, to help explain complex phenomena and relationships.
Observation of the principles of nature, and the pursuit of their underlying causes, forms the basis for discovery and innovation.
Sometimes, those innovations are even more fascinating than what nature itself has created. Optical fiber technology provides a good example. By taking advantage of the properties of glass, it has become possible to efficiently transport unprecedented amounts of information, through hair-thin fibers. Information which has helped make our lives simpler, safer and more enjoyable.

Diamond USA Inc.

85 Rangeway Road, Bldg. 3

North Billerica MA 01862
Tel: +1 (978) 256 65 44
Fax: +1 (978) 256 33 62