Merz and McLellan was a leading British electrical engineering consultancy based in Newcastle.
[2] The partnership was instrumental in designing the United Kingdom's first three-phase electrical supply network, on Tyneside,[2] and for the next century continued to advise other Commonwealth countries on setting up their own networks.
In the early 1960s, Merz & McLellan started a scheme in the interest of reclaming land owned by the London Brick Company in Peterborough; James Price took up the position of senior resident engineer.
In 1995 the partnership merged with the Parsons Brinckerhoff consultancy, and in 2000 the new owners announced that the Merz & McLellan name would be discontinued.
[3] In 2010, Mott MacDonald consultancy announced[4] that it had bought Merz and McLellan South Africa.