USinternetworking, Inc (USI)
FoundedJanuary 1998; 26 years ago (1998-01)
FoundersChristopher R. McCleary
Chris Poelma
DefunctOctober 20, 2006; 17 years ago (2006-10-20)
FateAcquired by AT&T
HeadquartersAnnapolis, Maryland

USinternetworking, Inc. (USi) was an application service provider. It offered outsourced business applications delivered over the Internet or a private network connection for an installation charge and a flat monthly fee. In October 2006, it was acquired by AT&T.


The company was founded in January 1998 by Christopher R. McCleary, Chris Poelma and Stephen McManus

Early investors included Grotech[1] and US West.[2]

In February 1998, the company pursued a merger with PSINet but was rejected.[3]

In May 1998, the company signed a lease for its 24,000 square foot office.[4]

On April 9, 1999, during the dot-com bubble, the company became a public company via an initial public offering. Shares rose 174% on the first day of trading, ending the day at $57.50 per share.[5][6]

On April 26, 1999, the company was named the first certified Broadvision application service provider.[7]

In November 1999, the company announced an agreement to develop Microsoft Office 2000 as an online service.[8]

In July 2000, founder Christopher R. McCleary resigned as chief executive officer of the company and was replaced with Andrew Stern.[9]

In August 2000, the company acquired EnableVision.[10]

By July 2001, after the bursting of the dot-com bubble, shares were trading for $1 each.[11]

In January 2002, the company filed bankruptcy. It emerged in May 2002 with financing from Bain Capital and a merger with Interpath.[12][13]

In September 2003, Stephen A. Mucchetti was named chief operating officer of the company.[14]

In June 2004, the company acquired Appshop for between $40 million and $50 million.[15]

In October 2006, AT&T acquired the company for $300 million.[16]


  1. ^ O'Hara, Terence (January 3, 2005). "Grotech Hopes to Repeat Success of Long John Silver's". The Washington Post.
  2. ^ Glanz, William (January 25, 1999). "USi to raise $86M in IPO". American City Business Journals.
  3. ^ "USinternetworking Won't Pursue Its Proposed Acquisition of PSINet". The Wall Street Journal. February 23, 1998.
  4. ^ Harrison, David (May 11, 1998). "'Net exec wired for growth". American City Business Journals.
  5. ^ "Nets roll, but Compaq warns". CNN. April 9, 1999.
  6. ^ BICKNELL, CRAIG (April 9, 1999). "YET ANOTHER BIG IPO DAY". Wired.
  7. ^ "USinternetworking is named the first certified Broadvision Application Service Provider" (Press release). PR Newswire. April 26, 1999.
  8. ^ "Office 2000 for rent". November 12, 1999.
  9. ^ Noguchi, Yuki (July 25, 2000). "Founder Steps Down As Chief Executive of USinternetworking". The Washington Post.
  10. ^ "USi buys New Jersey firm". American City Business Journals. August 31, 2000.
  11. ^ "Hot Stocks: Deep discount". CNN. July 10, 2001.
  12. ^ Noguchi, Yuki (May 22, 2002). "USinternetworking Out of Bankruptcy". The Washington Post.
  13. ^ Torode, Christina (May 22, 2002). "USi Merges With Interpath; Emerges From Bankruptcy". CRN.
  14. ^ Noguchi, Yuki (September 3, 2003). "Former IBM Executive To Join USinternetworking". The Washington Post.
  15. ^ Noguchi, Yuki (June 2, 2004). "USi to Buy Software Firm". The Washington Post.
  16. ^ Pappalardo, Denise (October 20, 2006). "AT&T closes USi deal". Network World.