• Hughes Brothers

    HB excellence forged daily and proudly manufactured in the U.S.A!

  • King Luminaire Lighting

    King Luminaire and StressCrete are the market leaders in decorative LED luminaires and spun concrete poles.

  • Leotek LED Lighting

    Leotek introduces the new GreenCobra GCL roadway LED luminaire replacing 250W to 400W HID street lights.

  • PUPI Crossarms

    PUPI has 25 years of excellence designing and manufacturing fiberglass crossarms for the utility industry.

  • Siemens Compact Modular Recloser

    Siemens new CMR is a reliable and maintenance free, fully integrated self-powered system

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  • Siemens Fusesaver

    Word's fastest vacuum circuit-breaker

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  • Substation Materials

    We represent some of the most prominent manufacturers in the industry including Alcad, Electroswitch, ERICO Cadweld and SEFCOR.

About Us

We represent several of the prominent manufacturers in the electric power industry.

Why CSI?

We are dedicated to providing outstanding customer service on behalf of the manufacturers we represent.

Learn More!

We represent best-in-class products centered on advancing the nation’s electric utility grid.

Featured Manufacturers


StressCrete Group

StressCrete Group

Established in 1953, the StressCrete Group is the oldest, most reliable manufacturer of spun concrete poles in North America. They also manufacture high quality decorative outdoor lighting fixtures,…

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Hardcraft Industries

Hardcraft Industries

Hardcraft Industries designs, builds, and services only the highest-quality solutions for domestic and international customers spanning power and water utilities, airports, stadiums, hospitals, and…

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Latest News


August 17th, 2020

Product Highlight - Siemens Fusesaver

Siemens Fusesaver is the world's fastest medium-voltage (MV) outdoor vacuum circuit-breaker!

This product is the most cost-effective solution for optimizing reliability while lowering operating costs…

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July 9th, 2020

Siemens CMR Product Launch

The new class of single-phase auto-recloser is here!

Siemens new Compact Modular Recloser (CMR) presents a quantum leap in technology for cost effectively improving the reliability of overhead medium…

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August 1st, 2016

StressCrete Pole Wins!

Some amateur video was recorded in Mississauga, Ontario atop the Absolute Towers showing a high speed police chase. During the chase, the fugitive driving a black sedan, collides with a StressCrete…

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July 28th, 2016

Siemens Fusesaver Installation Video

T&D How published a great video sponsored by Burns & McDonnell that demonstrates how to install the Siemens Fusesaver. The video shows linemen from EVERSOURCE performing the work in Ledyard,…

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  (517) 627-4971