Happy Birthday Dana and Ratanak Posted on December 10, 2015 by SDP in Team SDP with Comments Disabled ‘Tis’ the season’, more birthday cake and treats as the SDP office celebrated two Birthdays this week, big Birthday wishes to both Dana and Ratanak. About the Author SDP Contractor management, payroll & accounting services for contractors, recruiters & companies Australia and New Zealand wide. We deliver effective, tailored solutions that get results.