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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
FreedomVOICE Systems is a Encinitas, CA-based company in the Telecommunications sector.
Transcom Enhanced Services is a Fort Worth, TX-based company in the Telecommunications sector.
Ultra Communications is a Vista, CA-based company in the Telecommunications sector.
VLM International is a Mishawaka, IN-based company in the Telecommunications sector.