Company lists · Data refreshed September 2026

Top 25 Indoor cultivation companies based in the United Kingdom

Name: Indoor cultivation companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 108 companies tracked

RevenueBase identified 108 indoor cultivation companies headquartered in the United Kingdom as of September 2026 and tracks 788 professional contacts across them, including 314 with verified work emails. London is the largest hub.

This list covers indoor cultivation companies 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 19, 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 19, 2026 86% judged on-target in blind review

108Companies

788Contacts tracked

314Verified emails

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The 25 largest indoor cultivation companies based in the United Kingdom

Ranked by team size

Top 25 of 108 indoor cultivation companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to indoor cultivation companies: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Intelligent Growth Solutions IGS	Indirect evidence	Inverkeithing, United KingdomHQ checked Sep 19, 2026	51-200	128 contacts →
	Indirect evidence “Founded in 2013 in Scotland, Intelligent Growth Solutions (IGS) manufactures world-leading vertical farming technology.” Source: RevenueBase Database · checked Sep 19, 2026
2	Thanet Earth	Indirect evidence	Birchington, United KingdomHQ checked Sep 19, 2026	201-500	128 contacts →
	Indirect evidence “The UK's largest greenhouse development.” Source: RevenueBase Database · checked Sep 19, 2026
3	Fischer Farms LTD	Indirect evidence	Buckinghamshire, United KingdomHQ checked Sep 19, 2026	51-200	57 contacts →
	Indirect evidence “Fischer Farms is a vertical farming / hydroponics company.” Source: RevenueBase Database · checked Sep 19, 2026
4	Bridge Farm Group	Indirect evidence	Spalding, United KingdomHQ checked Sep 19, 2026	51-200	31 contacts →
	Indirect evidence “Bridge Farm Group has for over 30 years been one of the UK’s leading plant producers.” Source: RevenueBase Database · checked Sep 19, 2026
5	Lettus Grow	Indirect evidence	Bristol, United KingdomHQ checked Sep 19, 2026	11-50	23 contacts →
	Indirect evidence “LettUs Grow is a team of growers, plant scientists, engineers, commercial experts & operational specialists who care deeply about food and the environment.” Source: RevenueBase Database · checked Sep 19, 2026
6	Global AIR Supplies	Indirect evidence	Rotherham, United KingdomHQ checked Sep 19, 2026	11-50	18 contacts →
	Indirect evidence “Global Air Supplies was founded in 2017 driven by a passion for top-quality products and services.” Source: RevenueBase Database · checked Sep 19, 2026
7	Growth Technology	Indirect evidence	Taunton, United KingdomHQ checked Sep 19, 2026	51-200	17 contacts →
	Indirect evidence “Growth Technology is based in Taunton, the County Town of Somerset and has been formulating and manufacturing high-quality hydroponic nutrients and supplies for over 40 years.” Source: RevenueBase Database · checked Sep 19, 2026
8	Evogro LTD	Indirect evidence	East Malling, United KingdomHQ checked Sep 19, 2026	1-10	17 contacts →
	Indirect evidence “Evogro makes Plant Growing Systems for Chefs.” Source: RevenueBase Database · checked Sep 19, 2026
9	Glass Pharms	Indirect evidence	England, United KingdomHQ checked Sep 19, 2026	11-50	16 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 19, 2026
10	Black Orchid	Indirect evidence	Beaumont Leys, United KingdomHQ checked Sep 19, 2026	11-50	15 contacts →
	Indirect evidence “Acquired by The Blauberg Group in 2016, Black Orchid are a worldwide retailer in the horticultural industry specialising in ventilation equipment and mobile grow environments.” Source: RevenueBase Database · checked Sep 19, 2026
11	Kroptek	Indirect evidence	London, United KingdomHQ checked Sep 19, 2026	11-50	12 contacts →
	Indirect evidence “Kroptek is an early-stage UK-based Agritech group.” Source: RevenueBase Database · checked Sep 19, 2026
12	Dalgety	Indirect evidence	<secret Location>, United KingdomHQ checked Sep 19, 2026	51-200	11 contacts →
	Indirect evidence “Dalgety is a leading UK medicinal cannabis cultivator.” Source: RevenueBase Database · checked Sep 19, 2026
13	Autopot Global Limited	Indirect evidence	Farnborough, United KingdomHQ checked Sep 19, 2026	51-200	9 contacts →
	Indirect evidence “AutoPot Global manufactures and supplies simple to use automatic watering systems that can be used either as a hydroponic system or as a traditional soil irrigation system.” Source: RevenueBase Database · checked Sep 19, 2026
14	Plantasia	Indirect evidence	Bicester, United KingdomHQ checked Sep 19, 2026	1-10	9 contacts →
	Indirect evidence “Horticultural product retailer established 25 years.” Source: RevenueBase Database · checked Sep 19, 2026
15	Senelux	Indirect evidence	Liverpool, United KingdomHQ checked Sep 19, 2026	11-50	8 contacts →
	Indirect evidence “Originating in Liverpool in the UK but supplying products worldwide, Senelux is dedicated to designing and creating high-quality innovative products.” Source: RevenueBase Database · checked Sep 19, 2026
16	Bridge Greenhouses	Indirect evidence	Sidlesham, United KingdomHQ checked Sep 19, 2026	11-50	7 contacts →
	Indirect evidence “Bridge Greenhouses are the specialist company for construction and equipping of modern commercial greenhouses for growers, garden centre operators and research organisations.” Source: RevenueBase Database · checked Sep 19, 2026
17	Airponix LTD	Indirect evidence	Histon, United KingdomHQ checked Sep 19, 2026	1-10	7 contacts →
	Indirect evidence “Airponix Ltd is a soil-free agriculture company specialising in the sustainable production of high-quality seed potatoes using advanced controlled-environment systems.” Source: RevenueBase Database · checked Sep 19, 2026
18	Bloemteknik	Indirect evidence	Cardiff, United KingdomHQ checked Sep 19, 2026	11-50	7 contacts →
	Indirect evidence “Bloem designs, manufactures and deploys high quality, modular lighting solutions for vertical farms & greenhouses.” Source: RevenueBase Database · checked Sep 19, 2026
19	Holland Horticulture	Indirect evidence	Manchester, United KingdomHQ checked Sep 19, 2026	11-50	7 contacts →
	Indirect evidence “Established in 1996, Holland Horticulture is the UK’s leading stockist of specialised horticultural equipment, designed for home plant and food crop production.” Source: RevenueBase Database · checked Sep 19, 2026
20	Waterside Pharmaceuticals	Indirect evidence	Aberdeenshire, United KingdomHQ checked Sep 19, 2026	1-10	7 contacts →
	Indirect evidence “We are a high tech vertical farming facility based in Aberdeenshire, Scotland.” Source: RevenueBase Database · checked Sep 19, 2026
21	Gyroplant	Indirect evidence	Didcot, United KingdomHQ checked Sep 19, 2026	1-10	7 contacts →
	Indirect evidence “GyroPlant, founded in 2021, is a research and development-driven company specialising in designing reusable substrate alternatives.” Source: RevenueBase Database · checked Sep 19, 2026
22	Vertically Urban	Indirect evidence	Leeds, United KingdomHQ checked Sep 19, 2026	11-50	6 contacts →
	Indirect evidence “Vertically Urban is a British horticultural lighting specialist, designing and manufacturing high-performance LED grow lighting solutions for controlled environment agriculture.” Source: RevenueBase Database · checked Sep 19, 2026
23	Aqualabs LTD	Indirect evidence	Sheffield, United KingdomHQ checked Sep 19, 2026	11-50	6 contacts →
	Indirect evidence “AquaLabs is a company dedicated to creating high performance plant fertilisers and plant health products.” Source: RevenueBase Database · checked Sep 19, 2026
24	Harvst	Partial evidence	Cardigan, United KingdomHQ checked Sep 19, 2026	1-10	6 contacts →
	Partial evidence “Made in Britain smart grow systems for Indoors, Outdoors and smart watering for Greenhouses, Polytunnels, allotments, veg or flower beds.” Source: RevenueBase Database · checked Sep 19, 2026
25	Saturn Bioponics	Partial evidence	Birmingham, United KingdomHQ checked Sep 19, 2026	1-10	6 contacts →
	Partial evidence “Most problems in cultivation aren't caused by a single failure-they’re caused by technology, biology, and strategy not working together.” Source: RevenueBase Database · checked Sep 19, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: indoor cultivation companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names indoor cultivation companies.
Partial evidence: Its own public description names part of indoor cultivation companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name indoor cultivation companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 108 indoor cultivation companies based in the United Kingdom

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Indoor cultivation companies based in the United Kingdom at a glance

As of Sep 19, 2026

39.8%Verified-email coverage

7.3Average contacts per company

1-10Median size (employees)

12.0%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 108 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 indoor cultivation companies, 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 “indoor cultivation companies”. 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 indoor cultivation companies), 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 indoor cultivation companies, 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, 314 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 19, 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 indoor cultivation companies, 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 indoor cultivation companies are there based in the United Kingdom?

RevenueBase identified 108 indoor cultivation companies 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?

Intelligent Growth Solutions IGS, headquartered in Inverkeithing, tops this list with the largest team on record.

Which city has the most indoor cultivation companies?

London leads with 13 headquartered companies, followed by Birmingham (4) and Acton (2).

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 314 verified decision-maker contacts tracked across these 108 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 19, 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.