acceleratING safety, legitimacy, and growth FOR THE cannabis industry.

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Born at the epicenter of the cannabis Industry.

Treez is a leading enterprise cloud platform that streamlines retail supply chain operations within the cannabis market. Delivered through a SaaS model, Treez provides the robust breadth and depth of software solutions required to operate a successful modern dispensary. In volume of transactions, Treez is the market-leading software used by dispensaries in California, with expansion underway into new markets nationwide.

With five million unique consumers and growing, Treez holds a successful track record with retailers and brands nationwide, resulting in a $4 billion gross merchandise value (GMV). Founded in 2016, the Company is based in Oakland, Calif.

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Treez named to the 2021 Inc. 5000 List of Fastest-Growing Private Companies in America

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Treez Ranks #13 on San Francisco Business Times Fastest-Growing Private Companies for 2021

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Treez Ranked #225 Fastest-Growing Company on the 2021 Deloitte Technology Fast 500™

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Treez named one of america’s top cannabis industry employers of 2021 by MG Retailer

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Watch the Treezweek 2021 replay of keynote speakers Tommy Chong. Tommy Chong Cannabis. Weldon Angelos. The Weldon Project. Shareef El-Sissi. Eden Enterprises. Chris Lane. Airfield Supply Co. Matt Sensei. RYL Distribution. John Yang. CEO Treez. Josh Glantz Treez. Matt Lynch Treez.


Meet our leadership

  • John Yang

    Chief Executive Officer & Founder

    John Yang co-founded Treez in 2016. Prior to Treez, John was a consultant at Slalom Consulting - ranked #3 in the world for business technology consulting and specializing in program management, business process improvement, software development, CRM solutions, and business intelligence. John was also a consultant with Accenture as an experienced information technology management professional.

  • Shareef El-Sissi

    Chief Strategy Officer & Co-Founder

    Shareef El-Sissi partnered with John Yang and co-founded Treez in 2016. Shareef is the CEO of California based vertically integrated brand, Eden Enterprises. Shareef’s direct and ongoing hands-on experience in the cannabis industry is an essential part of the continued evolution of the Treez platform. Shareef helps the Treez team find new ways to automate processes and modernize cannabis commerce.

  • Josh Glantz

    Chief Revenue Officer

    Josh Glantz has more than 20 years of executive experience in data-driven businesses at the start-up and growth phases. Before Treez, Josh was the CEO of SinglePlatform, and lead its acquisition by Tripadvisor. In his role as VP for Digital Business at Publishers Clearing House, he helped grow the company from $20M to over $100M in annual revenue and led two acquisitions and integrations at Publishers Clearing House.

  • David Yan

    Chief Financial Officer

    David Yan is responsible for strategic, operational, and governance initiatives at Treez. David came to Treez in 2019 with a track record of success with over 15 years of experience in financial leadership to high-growth SaaS and data companies for both SMB and enterprise markets. He has held VP of Finance positions at both Womply and Wrike as well as various financial positions at Twitter, ForeScout, Synopsys, and Adchemy.

  • Shon Wedde

    Vice President of Engineering

    Shon Wedde leads the engineering team in creative innovation for the development of Treez. Shon brings more than 20 years of experience in previous roles at Oracle, RightNow Technologies, Aspect Communications, Janna Systems, as well as being the founder for 3 startups. His focus is on digital process automation and extracting intelligent insights to drive scale and growth for cannabis retailers and brands on the Treez platform.


The Treez team is leading a new era of cannabis commerce
with years of experience from proven, top-tier SaaS companies.

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 Our Investment Partners


We’re here to
make a difference.

We’re passionate about helping cannabis retailers and brands accelerate their growth while doing our part to create a more legitimate and safe legal industry for everyday consumers.

By infusing learned insights from cannabis industry market leaders, we strive to simplify and modernize commerce with an integrated and innovative platform. Our robust software sets the standard for retail supply chain operations and is constantly evolving to solve the needs of your business.

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Ready to grow your career?