Company lists · Data refreshed September 2026

Top 25 Cannabis compliance law firms worldwide

RevenueBase identified 2,313 cannabis compliance law firms worldwide as of September 2026 and tracks 19,973 professional contacts across them, including 6,653 with verified work emails. The United States is the largest market and Denver the largest hub.

This list covers cannabis compliance law firms worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 27, 2026. Country and city lists for cannabis compliance law firms follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 27, 2026 86% judged on-target in blind review
2,313Companies
19,973Contacts tracked
6,653Verified emails
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The 25 largest cannabis compliance law firms worldwide

Ranked by team size
Top 25 of 2,313 cannabis compliance law firms worldwide, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to cannabis compliance law firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceChicago, IL, United StatesHQ checked Sep 27, 20261,001-5,0002,200 contacts →

Partial evidence

“Green Thumb Industries Inc.(“Green Thumb”), a national cannabis consumer packaged goods company and retailer, promotes well-being through the power of cannabis while giving back…”

Source: RevenueBase Database · checked Sep 27, 2026
2Partial evidenceLittle Rock, MO, United StatesHQ checked Sep 27, 20261,001-5,000693 contacts →

Partial evidence

“Good Day Farm is a leading cannabis company and retailer headquartered in the South.”

Source: RevenueBase Database · checked Sep 27, 2026
3Partial evidenceAnn Arbor, MI, United StatesHQ checked Sep 27, 20261,001-5,000359 contacts →

Partial evidence

“C3 Industries is a private, vertically-integrated, multi-state cannabis company with operations in 6 states in the US.”

Source: RevenueBase Database · checked Sep 27, 2026
4Partial evidenceCulver City, CA, United StatesHQ checked Sep 27, 20261,001-5,000311 contacts →

Partial evidence

“MedMen Enterprises is a leading cannabis company in the U.S.”

Source: RevenueBase Database · checked Sep 27, 2026
5Indirect evidenceHackensack, NJ, United StatesHQ checked Sep 27, 2026201-500304 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 27, 2026
6Partial evidenceTroy, MI, United StatesHQ checked Sep 27, 2026501-1,000270 contacts →

Partial evidence

“Almost overnight, Cannabis has become a legal, legitimate business and a multi-billion dollar industry.”

Source: RevenueBase Database · checked Sep 27, 2026
7Partial evidenceDenver, CO, United StatesHQ checked Sep 27, 2026501-1,000251 contacts →

Partial evidence

“Native Roots is one of the largest cannabis companies in the country with 20+ retail locations across the state of Colorado.”

Source: RevenueBase Database · checked Sep 27, 2026
8Partial evidenceMinneapolis, MN, United StatesHQ checked Sep 27, 2026501-1,000250 contacts →

Partial evidence

“Vireo was founded as a pioneer in medical cannabis in 2014 and is fueled by an entrepreneurial drive.”

Source: RevenueBase Database · checked Sep 27, 2026
9Partial evidencePhiladelphia, PA, United StatesHQ checked Sep 27, 2026201-500217 contacts →

Partial evidence

“We believe that cannabis has an appropriate place in society.”

Source: RevenueBase Database · checked Sep 27, 2026
10Partial evidenceChicago, IL, United StatesHQ checked Sep 27, 2026201-500184 contacts →

Partial evidence

“Revolution is a craft cannabis company.”

Source: RevenueBase Database · checked Sep 27, 2026
11Partial evidenceStoneham, MA, United StatesHQ checked Sep 27, 2026201-500143 contacts →

Partial evidence

“Theory Wellness ("TW") is a leading provider of craft cannabis.”

Source: RevenueBase Database · checked Sep 27, 2026
12Partial evidenceCosta Mesa, MI, United StatesHQ checked Sep 27, 2026201-500138 contacts →

Partial evidence

“Rove is one of the fastest growing cannabis companies in the nation.”

Source: RevenueBase Database · checked Sep 27, 2026
13Partial evidenceDavie, FL, United StatesHQ checked Sep 27, 2026201-500134 contacts →

Partial evidence

“A forefront provider of cannabis testing technologies and methodologies nationwide, our laboratories offer both regulatory and research & development (R&D) testing services in…”

Source: RevenueBase Database · checked Sep 27, 2026
14Partial evidenceHartford, CT, United StatesHQ checked Sep 27, 2026201-500130 contacts →

Partial evidence

“A premier cannabis company providing a customized and superior customer experience and the expertise, education, research, and outreach about the use of cannabis for the greater…”

Source: RevenueBase Database · checked Sep 27, 2026
15Indirect evidenceFall River, MA, United StatesHQ checked Sep 27, 202611-50119 contacts →

Indirect evidence

“Northeast Alternatives is a vertically integrated dispensary located off Exit 1A in Fall River MA.”

Source: RevenueBase Database · checked Sep 27, 2026
16Partial evidenceWashington, DC, United StatesHQ checked Sep 27, 2026n/a114 contacts →

Partial evidence

“Founded in 2010, NCIA is the oldest, largest, and most effective trade association serving the cannabis industry.”

Source: RevenueBase Database · checked Sep 27, 2026
17Partial evidenceCosta Mesa, CA, United StatesHQ checked Sep 27, 2026501-1,000110 contacts →

Partial evidence

“CBOE:$GRAM • OTC:$GRAM Gold Flora Corporation is a female-led, vertically integrated cannabis powerhouse, setting the standard for premium cannabis in California.”

Source: RevenueBase Database · checked Sep 27, 2026
18Partial evidenceSt. Louis, MO, United StatesHQ checked Sep 27, 202651-200105 contacts →

Partial evidence

“Terrabis is a privately held, leading multi-state cannabis operator with a corporate office in Chicago.”

Source: RevenueBase Database · checked Sep 27, 2026
19Partial evidenceAkron, OH, United StatesHQ checked Sep 27, 202651-20099 contacts →

Partial evidence

“Klutch Cannabis is a leading Cultivator and Processor that is setting the standard for connoisseur-grade cannabis products in the Midwest.”

Source: RevenueBase Database · checked Sep 27, 2026
20Partial evidenceBoulder, CO, United StatesHQ checked Sep 27, 202651-20098 contacts →

Partial evidence

“Our mission is to enhance our customers’ lives through the responsible use of cannabis.”

Source: RevenueBase Database · checked Sep 27, 2026
21Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 27, 2026501-1,00097 contacts →

Indirect evidence

“Shryne Group Inc.”

Source: RevenueBase Database · checked Sep 27, 2026
22Partial evidenceMesquite, NV, United StatesHQ checked Sep 27, 2026201-50095 contacts →

Partial evidence

“We are Nevada's cannabis company.”

Source: RevenueBase Database · checked Sep 27, 2026
23Partial evidenceMiami, FL, United StatesHQ checked Sep 27, 202651-20095 contacts →

Partial evidence

“At Flowhub, we’re on a mission to make safe cannabis product accessible to everyone on planet Earth.”

Source: RevenueBase Database · checked Sep 27, 2026
24Partial evidenceSan Diego, CA, United StatesHQ checked Sep 27, 2026201-50095 contacts →

Partial evidence

“March and Ash is a customer-focused, licensed cannabis dispensary with multiple locations in Southern California.”

Source: RevenueBase Database · checked Sep 27, 2026
25Partial evidencePhoenix, AZ, United StatesHQ checked Sep 27, 2026201-50093 contacts →

Partial evidence

“We are The Pharm and Sunday Goods and we’re on a mission to revolutionize the cannabis industry at scale creating a better, more consistent cannabis experience helping our clients…”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 25 of 2,313 cannabis compliance law firms worldwide

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Cannabis compliance law firms worldwide at a glance

As of Sep 27, 2026
33.3%Verified-email coverage
8.6Average contacts per company
1-10Median size (employees)
3.8%Largest-city concentration · Denver
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
1,536
11-50
562
51-200
144
201-500
42
501-1,000
14
1,001-5,000
6
5,001-10,000
2
10001+
2

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among cannabis compliance law firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for cannabis compliance law firms are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “cannabis compliance law firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names cannabis compliance law firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among cannabis compliance law firms, and records with no verified work email.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 6,653 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 27, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Cannabis compliance law firms by location

10 lists · largest first

Every Cannabis compliance law firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names cannabis compliance law firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many cannabis compliance law firms are there worldwide?

RevenueBase identified 2,313 cannabis compliance law firms worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Green Thumb Industries GTI, headquartered in Chicago, tops this list with the largest team on record.

Which country has the most cannabis compliance law firms?

The United States leads with 1,437 companies, followed by Canada (203) and the United Kingdom (29). Every cannabis compliance law firms list by country and city is linked on this page.

Which city has the most cannabis compliance law firms?

Denver leads with 87 headquartered companies, followed by Los Angeles (86) and Toronto (63).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 6,653 verified decision-maker contacts tracked across these 2,313 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 27, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.