Sumitomo Electric Industries Ltd is a major Japanese producer of cable, materials & equipment for the semiconductor and opto-electronic industries; supplying telecommunications, power transmission, information technology and automotive cable markets worldwide.

Sumitomo Electric Europe Ltd, currently one of more than 20 Sumitomo Electric businesses in Europe, was established in 1972 and operates from an office in Elstree, on the northern edge of London. Sumitomo Electric Europe Ltd is a European sales office for certain products made by Sumitomo Electric Industries Ltd and has responsibility for sales & support of those products throughout Europe, North Africa and parts of the Middle East.

Products represented by Sumitomo Electric Europe Ltd include: optical fibre, optical fibre cable, optical fibre fusion splicers and other cable accessories, optical fibre connectors, compound semiconductors, "new" materials and both passive & active optical & opto-electronic devices.

The products marketed through the Sumitomo Electric Europe office represent only a portion of Sumitomo Electric Industries complete product range.