Water would be the costliest sector to renationalise at £90.4 billion, according to figures from the Confederation of British Industry (CBI).
This is closely followed by the cost to bring the energy networks back under public ownership with a price tag of £89.1 billion.
CBI released the “eye-watering” total cost of £196 billion for Labour’s renationalisation plans in October.
The total estimate also included rail industries – with upfront costs being the purchase of rolling stock – estimated at £13.9 billion.
Meanwhile Royal Mail, which was sold off by government from 2013 when shares were sold for 330p and finalised in 2015, was estimated to cost £2.6 billion by CBI to renationalise.
The CBI points out the cost is equivalent to taking every penny of income tax paid by UK citizens in a single year.
In his speech to launch Labour’s election campaign earlier this week, Jeremy Corbyn promised to end “the Conservatives’ great rip-off by putting rail, mail and water into public ownership so they work for everyone, not just Tory donors and shareholders in tax havens.”
Despite featuring heavily in Labour’s previous pledges, Corbyn did not mention bringing energy networks under public ownership in the campaign speech.
The CBI’s chief economist Rain Newton-Smith said the price tag on renationalisation was “only the starting point”.
“It doesn’t take into account the maintenance and development of the infrastructure, the trickle-down hit to pension pots and savings accounts, or the impact on the country’s public finances,” he said.