The global initiative aims to drive a major shift in the global market for the responsible sourcing and production of net zero carbon steel.
In signing up, Severfield joins fellow steelwork contractor Bourne and main contractors Lendlease, Mace, Multiplex.
Consultant WSP and developers Grosvenor and Landsec are also committed to targets of net zero carbon emissions steel by between 2040 and 2050.
A spokesman for Severfield said: “Targeting net zero steel from the demand-side of the supply chain makes this the first initiative of its kind, with the potential for it to have significant impact on investment, policy, manufacturing, and production in the construction sector.
“By signing up, we are making a public commitment to transition to procuring, specifying, or stocking 100 per cent net zero steel by 2050, with certain interim targets to be achieved by 2030.
Jenny Chu, Head of Energy Productivity Initiatives at the Climate Group, said: “We are delighted that Severfield, one of the UK’s leading structural steel construction companies, has become the latest member to join SteelZero.
“The initiative gives forward-looking companies a springboard from which they can use their collective purchasing power and influence to demonstrate there is strong demand for clean and sustainable steel.”