Company lists · Data refreshed September 2026

Top 25 Seaweed packaging manufacturers based in the United Kingdom

Name: Seaweed packaging manufacturers based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 109 companies tracked

RevenueBase identified 109 seaweed packaging manufacturers headquartered in the United Kingdom as of September 2026 and tracks 954 professional contacts across them, including 363 with verified work emails. London is the largest hub.

This list covers seaweed packaging manufacturers 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 17, 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 17, 2026 86% judged on-target in blind review

109Companies

954Contacts tracked

363Verified emails

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The 25 largest seaweed packaging manufacturers based in the United Kingdom

Ranked by team size

Top 25 of 109 seaweed packaging manufacturers based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to seaweed packaging manufacturers: 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	Notpla	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	51-200	91 contacts →
	Partial evidence “We are a sustainable packaging start-up.” Source: RevenueBase Database · checked Sep 17, 2026
2	Vegware	Partial evidence	Edinburgh, United KingdomHQ checked Sep 17, 2026	51-200	59 contacts →
	Partial evidence “Vegware is the global specialist in plant-based compostable foodservice packaging.” Source: RevenueBase Database · checked Sep 17, 2026
3	Waddington Europe	Partial evidence	Milton Keynes, United KingdomHQ checked Sep 17, 2026	201-500	57 contacts →
	Partial evidence “Waddington Europe™ a division of Novolex®, is a leading European plastic packaging specialist.” Source: RevenueBase Database · checked Sep 17, 2026
4	Pulpex	Partial evidence	Sawston, United KingdomHQ checked Sep 17, 2026	51-200	43 contacts →
	Partial evidence “PULPEX is a world-class, sustainable packaging technology company with the single-minded mission to use material science innovation to enable and deliver much-needed and highly…” Source: RevenueBase Database · checked Sep 17, 2026
5	Aquapak Polymers LTD	Partial evidence	Rubery, United KingdomHQ checked Sep 17, 2026	11-50	40 contacts →
	Partial evidence “We are pioneers in the development of innovative planet-friendly materials that enable the production of sustainable packaging and the elimination of harmful plastic pollution.” Source: RevenueBase Database · checked Sep 17, 2026
6	Polythene UK LTD	Partial evidence	Witney, United KingdomHQ checked Sep 17, 2026	11-50	33 contacts →
	Partial evidence “The UK's largest independent supplier of polythene packaging, Polythene UK is the award-winning polythene supplier for your packaging requirements.” Source: RevenueBase Database · checked Sep 17, 2026
7	Magical Mushroom Company	Partial evidence	Nottingham, United KingdomHQ checked Sep 17, 2026	11-50	32 contacts →
	Partial evidence “Our vision is to build Europe’s largest sustainable packaging company, helping businesses grow without harming people or the planet.” Source: RevenueBase Database · checked Sep 17, 2026
8	Biopax LTD	Partial evidence	Belfast, United KingdomHQ checked Sep 17, 2026	51-200	27 contacts →
	Partial evidence “Biodegradable, recyclable, sustainable packaging and labels” Source: RevenueBase Database · checked Sep 17, 2026
9	KELPI	Strong evidence	Bristol, United KingdomHQ checked Sep 17, 2026	11-50	25 contacts →
	Strong evidence “Kelpi is a world-leading sustainable materials innovation business - harnessing the properties of seaweed to create compostable, marine-safe, low-carbon bioplastic packaging.” Source: RevenueBase Database · checked Sep 17, 2026
10	SGMA	Partial evidence	Sittingbourne, United KingdomHQ checked Sep 17, 2026	1-10	25 contacts →
	Partial evidence “SgMA offers practical, sustainable solutions addressing today’s accelerating global packaging pollution problem.” Source: RevenueBase Database · checked Sep 17, 2026
11	Amipak LTD	Partial evidence	Croydon, United KingdomHQ checked Sep 17, 2026	51-200	22 contacts →
	Partial evidence “amipak ltd is a packaging and containers company based out of 16-18 Factory Ln, Croydon, United Kingdom.” Source: RevenueBase Database · checked Sep 17, 2026
12	Tri-Pack Packaging Systems LTD	Partial evidence	Grimsby, United KingdomHQ checked Sep 17, 2026	11-50	17 contacts →
	Partial evidence “With over 40 years’ experience, Tri-pack are experts in the design and manufacture of sustainable boxes for a wide range of industries; from seafood to fresh herbs, pharmaceutical…” Source: RevenueBase Database · checked Sep 17, 2026
13	Flexi-Hex	Partial evidence	Porthleven, United KingdomHQ checked Sep 17, 2026	1-10	16 contacts →
	Partial evidence “Eco-friendly, protective packaging solutions for a range of market sectors including boardsports, drinks, cosmetics, electronics, homeware and commercial.” Source: RevenueBase Database · checked Sep 17, 2026
14	Packaging Environmental	Partial evidence	London, United KingdomHQ checked Sep 17, 2026	11-50	16 contacts →
	Partial evidence “Packaging Environmental Limited is a leading supplier of sustainable and eco-friendly food & drink packaging with a focus on products made from renewable materials.” Source: RevenueBase Database · checked Sep 17, 2026
15	Envopap	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	11-50	15 contacts →
	Indirect evidence “envoPAP is at the forefront of sustainable innovation, committed to replacing fossil-fuel plastics and curbing deforestation through agricultural upcycling.” Source: RevenueBase Database · checked Sep 17, 2026
16	Puffin Packaging	Partial evidence	Leeds, United KingdomHQ checked Sep 17, 2026	1-10	14 contacts →
	Partial evidence “A pure play planet friendly packaging company that customers trust with the environment.” Source: RevenueBase Database · checked Sep 17, 2026
17	Plantsea	Partial evidence	St Asaph, United KingdomHQ checked Sep 17, 2026	11-50	13 contacts →
	Partial evidence “Making laundry capsules plastic-free by replacing PVOH films with seaweed.” Source: RevenueBase Database · checked Sep 17, 2026
18	Seagrown	Indirect evidence	Scarborough, United KingdomHQ checked Sep 17, 2026	11-50	11 contacts →
	Indirect evidence “SeaGrown was born from a love of the sea.” Source: RevenueBase Database · checked Sep 17, 2026
19	Element Packaging	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	11-50	11 contacts →
	Indirect evidence “Element enables you to make small choices with a large impact.” Source: RevenueBase Database · checked Sep 17, 2026
20	Greenlight Packaging	Strong evidence	Cardiff, United KingdomHQ checked Sep 17, 2026	11-50	11 contacts →
	Strong evidence “Established in 1994, Greenlight is an award-winning international packaging manufacturer with a proud history of making a greener future.” Source: RevenueBase Database · checked Sep 17, 2026
21	Green Bell Packaging	Partial evidence	Liverpool, United KingdomHQ checked Sep 17, 2026	1-10	10 contacts →
	Partial evidence “We help businesses ditch plastic and switch to 100% biodegradable, compostable, and eco-friendly packagingwithout sacrificing quality.” Source: RevenueBase Database · checked Sep 17, 2026
22	pouches.co.uk	Strong evidence	Wednesfield, United KingdomHQ checked Sep 17, 2026	51-200	8 contacts →
	Strong evidence “We are a UK flexible packaging manufacturer focusing on delivering top-notch packaging solutions, whilst lowering the environmental impact WE ARE PARTNERS NOT JUST SUPPLIERS We…” Source: RevenueBase Database · checked Sep 17, 2026
23	Cirrus Plastics Limited	Indirect evidence	Carn Industrial Estate, United KingdomHQ checked Sep 17, 2026	1-10	7 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
24	Flexsea	Strong evidence	London, United KingdomHQ checked Sep 17, 2026	11-50	6 contacts →
	Strong evidence “FlexSea is a sustainable-packaging company aiming to replace traditional petroleum plastic with an innovative natural material derived from seaweed.” Source: RevenueBase Database · checked Sep 17, 2026
25	Searo Labs	Partial evidence	Cambridge, United KingdomHQ checked Sep 17, 2026	11-50	5 contacts →
	Partial evidence “Leading the industry with seaweed-powered smart materials.” Source: RevenueBase Database · checked Sep 17, 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: seaweed packaging manufacturers. 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 seaweed packaging manufacturers.
Partial evidence: Its own public description names part of seaweed packaging manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name seaweed packaging manufacturers. 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 109 seaweed packaging manufacturers based in the United Kingdom

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Seaweed packaging manufacturers based in the United Kingdom at a glance

As of Sep 17, 2026

38.1%Verified-email coverage

8.8Average contacts per company

1-10Median size (employees)

21.1%Largest-city concentration · London

Sep 17, 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 109 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 seaweed packaging manufacturers, 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 “seaweed packaging manufacturers”. 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 seaweed packaging manufacturers), 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 seaweed packaging manufacturers, 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, 363 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 17, 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 seaweed packaging manufacturers, 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 seaweed packaging manufacturers are there based in the United Kingdom?

RevenueBase identified 109 seaweed packaging manufacturers 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?

Notpla, headquartered in London, tops this list with the largest team on record.

Which city has the most seaweed packaging manufacturers?

London leads with 23 headquartered companies, followed by Cambridge (2) and Croydon (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 363 verified decision-maker contacts tracked across these 109 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 17, 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.