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North Pittsburgh Systems, Inc. (North Pittsburgh) is a holding company. Its subsidiaries include North Pittsburgh Telephone Company (NPTC), Penn Telecom, Inc. (PTI) and Pinnatech, Inc. (Pinnatech). NPTC is a telephone public utility. PTI was certificated
F Squared Engineering Corp is a Damascus, MD-based company in the Telecommunications sector.
Paragon Communications is a Ashland, MA-based company in the Telecommunications sector.
Telamon Corporation is a Carmel, IN-based company in the Telecommunications sector.
Flat Rock Telephone Co-op, Inc. is a Flat Rock, IL-based company in the Telecommunications sector.