Brinsworth Training has supplied 12 engineering apprentices to Alcoa at its two former Firth Rixson sites in Sheffield.
The US metals giant took over Firth Rixson, the global leader in aerospace components, last month in a deal worth £1.7bn.
Nine of the apprentices are based at the forging division at Meadowhall, and the other three at the metals division site at Ecclesfield.
They are currently undergoing up to 14 weeks of intensive, basic training at Brinsworth Training in Rotherham.
Jen Bramley, operations director of Brinsworth Training, said: “As the manufacturing industry’s fortunes are turned around they need staff with the right skills to carry out the work.
“And young people need the skills to do the jobs out there; so apprenticeships are a great way to marry the needs of both school leavers and industry.”
The nine apprentices at the Meadowhall site will be trained in machine operations and computer-controlled systems. They are Sam Foster, James Wingrove, Faraz Shafiq, Jak Broad, Joseph Maples, Josh Margerrison, Isaac-Kenny Obaghoro, Joe Goulsbra and Shameel Handfield.
The three apprentices at Ecclesfield, Emily Davies, Joseph Askham and Thomas Lazenby, will work in laboratories in the technical department. The factory employs more than 140 people and makes forged and converted metal products for markets including aerospace, power generation and transport.
Joseph, aged 17, a former student at Firth Park Community Arts College, said: “I always wanted to go into a career that suited my best subjects of maths and science. So the apprenticeship at Alcoa is fantastic.”