Grow Super has signed its first client for its superannuation administration platform which is based on distributed ledger technology. : Grow Super has signed its first client for its superannuation administration platform which is based on distributed ledger technology. Startup superannuation fund GigSuper came onboard in late December, Grow Super deputy chief executive Adam Gee said. Grow Super's new platform, which is called TINA, was announced in July last year. Gee, who was previously a partner at KPMG focused on superannuation, joined in April and was tasked with implementing Grow's plans for the platform.