TNZ meaning in Business ?

Spark New Zealand Limited is a New Zealand telecommunications company providing fixed-line telephone services, a mobile phone network, internet access services, and (through its Spark Digital division) ICT services to businesses. It was known as Telecom New Zealand until it was rebranded with its current name in 2014. It has operated as a publicly traded company since 1990. Spark is the second-largest wireless carrier in New Zealand, with 2.3 million subscribers as of July 2017.

Spark is one of the largest companies by value on the New Zealand Exchange (NZX). As of 2007, it was the 39th largest telecommunications company in the OECD. The company is part of New Zealand Telecommunications Forum.

Telecom New Zealand was formed in 1987 from a division of the New Zealand Post Office, and privatised in 1990. In 2008, Telecom was operationally separated into three divisions under local loop unbundling initiatives by central government – Telecom Retail; Telecom Wholesale; and Chorus, the network infrastructure division. This separation effectively ended any remnants of monopoly that Telecom Retail once had in the market. In 2011 the demerger process was complete, with Telecom and Chorus becoming separate listed companies. The company changed its name to Spark New Zealand on 8 August 2014.