IBM said Thursday that Sogeti, a unit of Capgemini, will adopt the company's cloud as its primary development platform.
The news comes after IBM announced that integrators CSC and Tech Mahindra will develop on Big Blue's cloud platform.
As for the Sogeti deal, the integrator will train its developers in 15 companies on IBM's Bluemix. Bluemix, built on Cloud Foundry, will serve as a developer sandbox to integrate Internet of things devices, collaborate and plug in application programming interfaces.
Sogeti, which has 20,000 consultants, specializes in technology and software testing for application, infrastructure and engineering services.
IBM, which is gunning for the hybrid cloud market, has been inking deals with integrators to grab a bigger footprint in enterprises. These enterprises are likely to have IBM gear and software, but have used other cloud platforms from the likes of Amazon Web Services, Microsoft and Google for development.
Big Blue has grown its cloud business via the acquisition of infrastructure as a service vendor SoftLayer as well as its software as a service.
IBM has focused on the Bluemix platform as a way to land developers and ultimately move up the stack to other workloads globally. The company recently opened its latest cloud center in Milan, Italy so customers can store data locally.