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Private company

PSINet

Logo: PSINet, Public domain, via Wikimedia Commons3

Defunct but one of the first commercial Internet service providers (ISPs)

PSINet, formerly Performance Systems International, was an American internet service provider based in Ashburn, Virginia. As one of the first commercial Internet service providers (ISPs), it was involved in the commercialization of the Internet until the company's bankruptcy in 2001 during the dot-com bubble and subsequent acquisition by Cogent Communications in 2002.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

Dec 5, 1989Founded1

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PSINet, formerly Performance Systems International, was an American internet service provider based in Ashburn, Virginia. As one of the first commercial Internet service providers (ISPs), it was involved in the commercialization of the Internet until the company's bankruptcy in 2001 during the dot-com bubble and subsequent acquisition by Cogent Communications in 2002.2

Timeline

  1. Apr 2002Dissolved Dissolved1
  2. Dec 5, 1989Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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