Company lists · Data refreshed September 2026

Top 12 Cannabis cultivators based in the United Kingdom

RevenueBase identified 45 cannabis cultivators headquartered in the United Kingdom as of September 2026 and tracks 332 professional contacts across them, including 51 with verified work emails. London is the largest hub.

This list covers cannabis cultivators headquartered in the United Kingdom, 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 16, 2026.

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 16, 2026 86% judged on-target in blind review
45Companies
332Contacts tracked
51Verified emails
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The 12 largest cannabis cultivators based in the United Kingdom

Ranked by team size
Top 12 of 45 cannabis cultivators based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to cannabis cultivators: 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
1Indirect evidenceWalsall, United KingdomHQ checked Sep 16, 202611-5029 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
2Indirect evidenceEngland, United KingdomHQ checked Sep 16, 202611-5016 contacts →

Indirect evidence

“Glass Pharms uses cutting edge technologies in glasshouse protected agriculture to optimise for purity and consistency to grow pharmaceutical quality crops.”

Source: RevenueBase Database · checked Sep 16, 2026
3Strong evidence<secret Location>, United KingdomHQ checked Sep 16, 202651-20011 contacts →

Strong evidence

“Dalgety is a leading UK medicinal cannabis cultivator.”

Source: RevenueBase Database · checked Sep 16, 2026
4Partial evidenceBerkshire, United KingdomHQ checked Sep 16, 202611-5010 contacts →

Partial evidence

“We are BRITISH CANNABIS™ We have worked tirelessly to become the largest independently owned, producer, manufacturer and distributor of legal cannabis-derived products in the UK.”

Source: RevenueBase Database · checked Sep 16, 2026
5Partial evidenceLondon, United KingdomHQ checked Sep 16, 202611-507 contacts →

Partial evidence

“AltoVerde is an emerging multifaceted cannabis company, integrating a network of partners and subsidiaries across Europe, and committed to the research, cultivation and…”

Source: RevenueBase Database · checked Sep 16, 2026
6Indirect evidenceAberdeenshire, United KingdomHQ checked Sep 16, 20261-107 contacts →

Indirect evidence

“We are a high tech vertical farming facility based in Aberdeenshire, Scotland.”

Source: RevenueBase Database · checked Sep 16, 2026
7Partial evidenceLondon, United KingdomHQ checked Sep 16, 202611-506 contacts →

Partial evidence

“At Master Plant we share an ambition to preserve and promote the CBD and cannabinoid industry.”

Source: RevenueBase Database · checked Sep 16, 2026
8Partial evidenceElmswell, United KingdomHQ checked Sep 16, 202611-505 contacts →

Partial evidence

“CBD Brothers are the oldest provider of cannabis extracts in the country.”

Source: RevenueBase Database · checked Sep 16, 2026
9Partial evidenceLondon, United KingdomHQ checked Sep 16, 202611-502 contacts →

Partial evidence

“Equinox International equinoxinternational.com, Equinox is a Land to Brand British cannabis company investing in the development of licensed cannabis facilities around the world…”

Source: RevenueBase Database · checked Sep 16, 2026
10Indirect evidenceHayling Island, United KingdomHQ checked Sep 16, 20261-101 contacts →

Indirect evidence

“We are a lawful, legal and ethical business acting in compliance with the laws of England & Wales.”

Source: RevenueBase Database · checked Sep 16, 2026
11Partial evidenceSudbury, United KingdomHQ checked Sep 16, 20261-101 contacts →

Partial evidence

“Analytical Cannabis is a leading publication for scientists, technicians and business professionals working in the cannabis, hemp and psychedelics industries.”

Source: RevenueBase Database · checked Sep 16, 2026
12Partial evidenceLiverpool, United KingdomHQ checked Sep 16, 20261-101 contacts →

Partial evidence

“At TTS Pharma, we are committed to advancing the medicinal cannabis and wellness industries through innovation, integrity, and scientific excellence.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 12 of 45 cannabis cultivators based in the United Kingdom

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Cannabis cultivators based in the United Kingdom at a glance

As of Sep 16, 2026
15.4%Verified-email coverage
7.4Average contacts per company
1-10Median size (employees)
33.3%Largest-city concentration · London
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
25
11-50
14
51-200
4
5,001-10,000
1
10001+
1

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 45 companies.

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 cultivators, 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.
What qualifies
Companies headquartered in the United Kingdom whose own description of what they do matches “cannabis cultivators”. 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 cultivators), 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 cultivators, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
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, 51 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 16, 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.

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 cultivators, 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 cultivators are there based in the United Kingdom?

RevenueBase identified 45 cannabis cultivators headquartered in the United Kingdom 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?

Omniserve Limited, headquartered in Walsall, tops this list with the largest team on record.

Which city has the most cannabis cultivators?

London leads with 15 headquartered companies, followed by Aberdeenshire (1) and Ashby De La Zouch (1).

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 51 verified decision-maker contacts tracked across these 45 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 16, 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.