The country's largest transport company, Mainfreight, has posted a strong half-year profit after a slow start to the year.

Net profit increased by 23 percent to $72.9 million for the six months to September after strong trading in Australia and New Zealand.

Revenue increased by 7 percent to $1.6 billion as the company grew its market share in Australia and benefited from an increasing consumer demand.

The result was in line with forecasts made by the company recently.

"[It has been] a pleasing half-year result considering the slow start to the year through the Covid-19 lockdowns in the various countries and regions," the company said in a statement.

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