Vector Limited, together with its subsidiaries, engages in electricity and gas distribution, natural gas and LPG sale, gas processing, metering, and telecommunication and energy businesses in New Zealand. It operates through three segments: Regulated Networks, Gas Trading, and Metering. The company distributes electricity to residential and commercial customers in Auckland, from Wellsford to Papakura through its network consisting of approximately 18,000 kilometers of overhead lines and underground cables; natural gas to customers; bulk LPG to commercial customers; and bottled LPG to commercial and residential customers.

It also provides Vector solar systems; electricity and gas metering services to approximately 2,000,000 homes and businesses; and designs, builds, and supports fiber network solutions that connect approximately 800 buildings in Auckland. In addition, the company offers electric vehicle charging station app; bulk LPG storage, distribution, and management services; fiber services; and ventilation, heating, and water systems and related assembly services. The company is headquartered in Auckland, New Zealand.

Vector Limited is a subsidiary of Entrust.