Seamless provides promotional products, retail products & corporate catalogue programs to corporate clients including Cancer Council, P&O Cruise Lines, Helloworld, Rip Curl, Tough Mudder, The Australian Government, Nova, Call of Duty, Darell Lea and many more. See what our clients say and some of their client stories here. Seamless Award Winning Founder & Director, Jason Diamond, has designed, concept, manufactured, warehoused, distributed, marketed and provided web merchandise solutions for promotional products clients over 20-years, in both Australia and internationally, ensuring our entire team are lead & driven by a top industry professional. What's seamless about Seamless Merchandise: We sell promotional products and corporate catalogue programs. It's our unique and all encompassing options that make us a 'seamless' choice for your brand.