Onosys, a custom digital ordering provider, has announced three new restaurant chains have agreed to use its system for mobile and online ordering.  

Krystal, Captain D's, and Giordano's have each recently signed on to use the Onosys digital ordering platform, according to a press release.

Onosys did not provide details about how each brand will implement the digital ordering system.

"Onosys is increasingly being recognized as the partner of choice for leading restaurant brands that want to offer a digital ordering experience that delights customers and increases sales," David DiPasquale, chief revenue officer for Onosys, said in the release. "Winning the trust of leading brands like Krystal, Captain D's, and Giordano's is further validation that the custom Onosys approach to delivering an authentic brand experience is resonating, especially with brands that have struggled with less flexible solutions in the past."

Krystal, famous for its iconic square hamburgers, is a quick service chain with more than 350 restaurants in 11 states. 

Captain D's is a U.S.-based chain of fast casual restaurants specializing in seafood with more than 500 locations nationwide. Chicago-based Giordano's is known for its stuffed, deep-dish pizza and has more than 60 locations nationwide.