Matt Brammeier tweets a photo of some new equipment during a training ride in Belgium
The squad is the first African-registered team to earn a spot in the UCI WorldTour, and will be one of 18 at the top tier next season.
The German, who has worked with Cavendish on other squads, will serve as the team's performance director.
The South African-registered team says it will bring one more rider onboard before closing out its 2016 roster.
Professional services firm Deloitte stepped in and co-sponsored the squad, which helped bring Cavendish to the African-based outfit.
Dimension Data team is hoping to secure the final remaining slot in the WorldTour, which would make it the first-ever African team to do so.
The South African-registered team inks deals with the British sprinter and Deloitte Consulting for next season.
With the Pro Continental team announcing Dimension Data as its new sponsor, reports say Cavendish will also sign with the team.
The growing consensus is that sprint star Mark Cavendish will join Pro Continental team MTN-Qhubeka in 2016, leaving Etixx-Quick-Step.
The Pro Continental teams will ride into 2016 thanks to new title sponsors.