Rosie Mattio

Founder & CEO of MATTIO Communications

Rosie launched MATTIO Communications, formerly RMPR, in 2004 as a one-woman PR firm. Mattio moved to Seattle with her family in 2014, just when adult-use cannabis was legalized in the state of Washington. She quickly realized emerging cannabis brands had specific marketing needs – and challenges. 

Today, Rosie is considered a market maker in the world of cannabis. Ranked the #1 cannabis PR firm by Greenmarket Report, Rosie is a strategic powerhouse, industry connector and influencer. Based in New York City, her firm MATTIO serves over 35 marquee cannabis clients, including Headset, Canndescent, LeafLink, TerrAscend, Vangst, Front Range Biosciences, and Harborside. 

Rosie has helped usher in the New Cannabis Age, garnering global media coverage in mainstream publications for clients, including the first cannabis article ever published in Oprah Magazine. Over the past year, her firm has grown alongside the industry, adding several marketing and communications services for clients, including content, SEO, event planning and influencer marketing. Rosie has been named a High Times Female 50 and Forbes Fifteen Powerful And Innovative Women In Cannabis 

Prior to opening MATTIO, Rosie started her career at Alison Brod Public Relations and also worked at Rubenstein Associates. She received a degree in Public Relations/Image Management from Boston University. Before bringing her talents to the cannabis space, Rosie promoted several clients in the technology and food & beverage industries