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Terrayn

#6 in Cannabis

Cannabis dispensary marketing agency running SEO, web design, eCommerce optimization, and reputation management.

Dispensary SEOWeb DesignReputation ManagementeCommerce OptimizationContent MarketingLoyalty Programs
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Founder

Meet the founder

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Trevor Shirk

Founder & CEO

Trevor Shirk leads Terrayn, a Denver-based cannabis marketing agency specializing in dispensary SEO, website design, and eCommerce optimization.

Editorial

Editor’s take

Terrayn positions itself as a cannabis-vertical specialist with 700+ dispensary campaigns launched and a 4.7-star rating from 72 client reviews. The agency emphasizes hyperlocal SEO, eCommerce menu optimization, and reputation management—the channel mix most relevant to dispensary operators competing for local market share. Named clients including From The Earth, Bloom Montana, and Rair Cannabis Co. provide concrete proof of retention and results in major markets. Terrayn's depth in cannabis-specific challenges and multi-channel playbook makes it a credible fit for dispensary operators seeking experienced digital growth partners.
By the Editorial Team · September 2026

What they do

Services

Dispensary SEOWeb DesignReputation ManagementeCommerce OptimizationContent MarketingLoyalty Programs

How this ranking works

Where Terrayn ranks

Terrayn is ranked #6 on our list of the top cannabis marketing agencies, where every agency is scored against the same published criteria and re-reviewed annually. Compare Terrayn side by side with the other vetted cannabis marketing companies, or read the scoring methodology behind the rankings.