About

ISI is the premium provider of fiber optic, high performance networking solutions in Northern Illinois.  The ISI network is focused to deliver services in the northern Illinois region and brings competitive bandwidth prices to rural Illinois areas.

 

Today, the role of the network is more critical to business than ever before. Network performance is the driver of operational performance across the entire enterprise. This means you need a high-performance network to fuel your revenue generating applications. A network that delivers scalable and measurable results today, tomorrow, and well into the future. ISI is the premier provider of customized, fiber, fiber hybrid, and fixed wireless solutions that strategically serve your business needs. As your solutions provider, we’ll provide your organization with dependable network, high performance, and dedicated support. ISI delivers high-performance networks that are flexible, diverse from regular Telco or Cable networks, and scalable up to 100 Gbps. We provide Wavelengths, Content Video Transport, Ethernet, Internet Access, Private Networks, and bandwidth where it is needed throughout the Northern Illinois Region.With over 20 years of experience, ISI is committed to the highest level of service and support, which is obvious through our straight forward processes, dedicated representatives, and a company culture that always puts the customer first.

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ISI Communications, Inc.
ISI Communications, Inc.

Our Story

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Why ISI
Why ISI

How can ISI help your business

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ISI Management
ISI Management

Senior Management

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ISI Products
ISI Products

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ISI Network Map
ISI Network Map

The ISI Network Footprint

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ISI's SLA
ISI's SLA

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Affilliations
Affilliations

Our Network and Support Partners

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ROI
ROI
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