Lukas Pesek will make his MotoGP debut on Ioda's second Suter-BMW CRT entry in 2013.
The 27-year-old Czech rider was a 125cc frontrunner in the mid-2000s, with fourth in the '07 championship his career highlight.
He last raced at world championship level in Moto2 in 2010, and has since been limited to partial programmes in Spanish and German domestic series and a brief World Supersport appearance.
Team boss Giampiero Sacchi said: "Lukas's return is very welcome - he wrote some great pages of Derbi's history in 125cc working alongside some of our current team members.
"It's a tough challenge lying ahead of him but I'm sure he can do well in the premier class."
Pesek joins existing Ioda rider Danilo Petrucci in the squad.
2013 MotoGP entry list: Yamaha Jorge Lorenzo Valentino Rossi Honda Dani Pedrosa Marc Marquez Tech 3 Yamaha Cal Crutchlow Bradley Smith Ducati Andrea Dovizioso Nicky Hayden Michele Pirro* Gresini Honda Alvaro Bautista Gresini FTR-Honda Bryan Staring Aspar Aprilia Aleix Espargaro Randy de Puniet LCR Honda Stefan Bradl Pramac Ducati Ben Spies Andrea Iannone Cardion Aprilia Karel Abraham Avintia FTR-Kawasaki Hector Barbera Hiroshi Aoyama Paul Bird Aprilia Yonny Hernandez Paul Bird PBM-Aprilia Michael Laverty Ioda Suter-BMW Danilo Petrucci Lukas Pesek Forward FTR-Kawasaki Colin Edwards Claudio Corti * Three rounds only