Marijuana Venture is a business magazine for the legal cannabis industry, published from Washington State since 2014. It prints four quarterly issues a year with a digital edition, runs the Interchange trade events and publishes an annual 40 Under 40 list.
Its 2026 calendar opened with an Interchange event the magazine reported as a “smash hit,” and it is taking nominations for the 11th annual 40 Under 40.
An eight-page newsletter in March 2014
The magazine’s own history starts in March 2014 with an eight-page newsletter for people applying for Washington cannabis business licenses. Within a year it had grown into a 148-page national monthly.
Samir Husni of the Magazine Innovation Center at the University of Mississippi singled it out as one of America’s fastest-growing magazines. His Mr. Magazine site ran an interview with publisher Greg James in August 2015.
Greg James and Garrett Rudolph
Greg James is the publisher. The Mercer Island Reporter profiled him in August 2018, noting that he previously ran Topics Entertainment and started the magazine because nobody was doing a business title for the industry.
Garrett Rudolph is the editor. He came to the magazine from the Omak Chronicle in north central Washington, and his byline runs on company profiles, industry reports and the 40 Under 40 coverage.
Four quarterly issues and the website
Print has moved from the early monthly schedule to a quarterly one. A one-year print and digital subscription delivers all four quarterly issues by U.S. mail, starting with the next available edition.
Between issues, marijuanaventure.com publishes state market news, feature stories, company profiles and industry data. Coverage runs from Washington and Oregon to Missouri, Arizona, Ohio and Wisconsin, with the magazine’s audience of licensed operators in mind.
Interchange since 2016
Marijuana Venture has run Interchange since 2016. The two-day private events work like speed networking, putting state-licensed producers and processors in scheduled sales meetings with retail buyers.
The series has held more than 30 events across Washington, Oregon, Michigan and Massachusetts. A typical Washington event gathers about 50 retailers and 60 producers, processors and ancillary companies, and the first Michigan Interchange took place in 2022.
The magazine later partnered with the Michigan Cannabis Industry Association to revive Interchange Michigan at the Eagle Eye Golf & Banquet Center near Lansing. Scott Berka of Washington’s Aloha Botanics told the magazine his company had sold more than $10 million of cannabis through Interchange meetings.
40 Under 40, now in its 11th year
The editors build the annual 40 Under 40 by narrowing hundreds of candidates to a cross-section of the U.S. and Canadian industry, from farmers to tech founders. By the call for its 11th edition, the feature had highlighted more than 400 people.
Profiles of data and tech companies
Company profiles are a long-running format. In May 2016 Rudolph profiled Headset, the data company started by Leafly’s founders, and a July 2016 feature covered Doug Francis as the incoming CEO of Weedmaps.
The site also tracks industry reports. In December 2021 it covered the Leafly finding that cannabis had become America’s fifth most valuable crop, along with Weedmaps’ “2021: Cannabis in America” report on brand awareness and delivery.
Official channels
Read Marijuana Venture at marijuanaventure.com and find Interchange at interchangemv.com. Follow @mjventure on Instagram and the magazine on LinkedIn.