Why choose meetmarriner group? Marriner Group operates some of the most breathtaking and unique event venues in Melbourne and provides all production, catering and event management services to create an unforgettable occasion.What are the working hours of marriner group? For enquiries regarding Corporate Events and Private Functions: (Mon-Fri, 9am-5.30pm) Only for enquiries regarding the hiring of venues for productions and performances. If you would like to join our team, all current job opportunities at Marriner Group can be found here.How do i contact the mariners customer service department? If you are still unable to find the answer to your questions, please contact our customer service department at (206) 346-4001 or email us at [email protected]. Who is mariner group? Mariner Group was formed in 2012 by Trent Germano and Ian Smith to create high-value developments throughout the Southeast. United by a shared passion and an entrepreneurial vision, Mariner offers a nimble, holistic approach to three core disciplines: investment, development and construction management.