Company lists · Data refreshed September 2026

Top 25 Manufacturing complex developers based in the United Kingdom

Name: Manufacturing complex developers 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 387 companies tracked

RevenueBase identified 387 manufacturing complex developers headquartered in the United Kingdom as of September 2026 and tracks 4,951 professional contacts across them, including 1,957 with verified work emails. London is the largest hub.

This list covers manufacturing complex developers 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

387Companies

4,951Contacts tracked

1,957Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest manufacturing complex developers based in the United Kingdom

Ranked by team size

Top 25 of 387 manufacturing complex developers 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 manufacturing complex developers: 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	TSL	Indirect evidence	Gerrards Cross, United KingdomHQ checked Sep 17, 2026	501-1,000	734 contacts →
	Indirect evidence “TSL is a leader in technical construction, operating across EMEA, the Americas and APAC.” Source: RevenueBase Database · checked Sep 17, 2026
2	MARCH	Indirect evidence	Multiple Locations Uk-wide, United KingdomHQ checked Sep 17, 2026	1,001-5,000	273 contacts →
	Indirect evidence “We are March.” Source: RevenueBase Database · checked Sep 17, 2026
3	JCA Engineering	Indirect evidence	Stevenage, United KingdomHQ checked Sep 17, 2026	201-500	237 contacts →
	Indirect evidence “JCA is a multi-faceted engineering services and construction business.” Source: RevenueBase Database · checked Sep 17, 2026
4	Blackrow Group	Indirect evidence	Grimsby, United KingdomHQ checked Sep 17, 2026	201-500	182 contacts →
	Indirect evidence “For over 45 years, Blackrow Engineering has been delivering high-quality engineering, fabrication, and site services to clients across the UK and worldwide.” Source: RevenueBase Database · checked Sep 17, 2026
5	Allied Protek	Indirect evidence	Grimsby, United KingdomHQ checked Sep 17, 2026	51-200	96 contacts →
	Indirect evidence “Allied Protek are a multidisciplinary design, engineering and project management company with bases in Grimsby and Runcorn, delivering capital projects across various sectors…” Source: RevenueBase Database · checked Sep 17, 2026
6	Wright Engineering	Partial evidence	Worksop, United KingdomHQ checked Sep 17, 2026	51-200	86 contacts →
	Partial evidence “For over 40 years, Wright Engineering has delivered complex industrial engineering projects that keep some of the UK's most demanding industries moving.” Source: RevenueBase Database · checked Sep 17, 2026
7	Uplands Construction LTD	Partial evidence	Emersons Green, United KingdomHQ checked Sep 17, 2026	51-200	84 contacts →
	Partial evidence “We offer a unique, flexible and integrated service which appeals to a large range of clients and projects, whatever their scale, complexity or industry sector.” Source: RevenueBase Database · checked Sep 17, 2026
8	K Home International	Indirect evidence	Stockton-on-tees, United KingdomHQ checked Sep 17, 2026	51-200	80 contacts →
	Indirect evidence “With over 50 years of continued success, K Home International (KHI) is a family-owned, multi-discipline engineering design and construction company, based in Thornaby…” Source: RevenueBase Database · checked Sep 17, 2026
9	Stelling Properties	Indirect evidence	Winchester, United KingdomHQ checked Sep 17, 2026	51-200	58 contacts →
	Indirect evidence “Through fully integrating all the component parts of real estate, Stelling Properties is able to optimise what we do and how we do it.” Source: RevenueBase Database · checked Sep 17, 2026
10	Technica LTD	Indirect evidence	Grimsby, United KingdomHQ checked Sep 17, 2026	51-200	57 contacts →
	Indirect evidence “Technica provide a range of services from front end design, detailed design, project management, project engineering, construction, commissioning and the supply of professional…” Source: RevenueBase Database · checked Sep 17, 2026
11	Unitspark	Indirect evidence	Hatfield, United KingdomHQ checked Sep 17, 2026	11-50	53 contacts →
	Indirect evidence “Unitspark Ltd provide fabrication, welding and bespoke mechanical engineering from design, to manufacture, to commissioning.” Source: RevenueBase Database · checked Sep 17, 2026
12	Cementers Limited	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	51-200	47 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
13	J P Hildreth LTD	Partial evidence	Chesham, United KingdomHQ checked Sep 17, 2026	11-50	46 contacts →
	Partial evidence “J P Hildreth help turn complex technical and operational challenges into practical reality.” Source: RevenueBase Database · checked Sep 17, 2026
14	JGC Engineering And Technical Services LTD	Partial evidence	Thurso, United KingdomHQ checked Sep 17, 2026	51-200	42 contacts →
	Partial evidence “JGC is one of the UK's leading engineering companies with the breadth and depth of technical expertise to respond to the daily complex challenges of major engineering projects.” Source: RevenueBase Database · checked Sep 17, 2026
15	Huxley Bertram Engineering LTD	Indirect evidence	Cambridge, United KingdomHQ checked Sep 17, 2026	51-200	41 contacts →
	Indirect evidence “Huxley Bertram is engineering transformation.” Source: RevenueBase Database · checked Sep 17, 2026
16	Projex Solutions Limited	Indirect evidence	Brighouse, United KingdomHQ checked Sep 17, 2026	11-50	36 contacts →
	Indirect evidence “Projex Solutions offers multi-disciplined teams of highly experienced and skilled engineers to help the world's most respected manufacturer's in highly regulated industries.” Source: RevenueBase Database · checked Sep 17, 2026
17	MJM Industrial	Indirect evidence	Colnbrook, United KingdomHQ checked Sep 17, 2026	51-200	36 contacts →
	Indirect evidence “We design, build, install, and maintain quality infrastructure project solutions.” Source: RevenueBase Database · checked Sep 17, 2026
18	Robinsons	Strong evidence	Lockerbie, United KingdomHQ checked Sep 17, 2026	51-200	36 contacts →
	Strong evidence “At Robinsons we supply a comprehensive manufacturing and construction solution; if you have an idea, we have the knowledge and expertise to take your design concept to completion…” Source: RevenueBase Database · checked Sep 17, 2026
19	Cordek LTD	Indirect evidence	Slinfold, United KingdomHQ checked Sep 17, 2026	51-200	33 contacts →
	Indirect evidence “Cordek provides technical solutions for a range of construction requirements.” Source: RevenueBase Database · checked Sep 17, 2026
20	The DE Group UK LTD	Indirect evidence	London, United KingdomHQ checked Sep 17, 2026	201-500	33 contacts →
	Indirect evidence “The DE Group (UK) Ltd provide a suite of specialist services to the construction and property development sectors.” Source: RevenueBase Database · checked Sep 17, 2026
21	DLT Engineering LTD	Indirect evidence	Higham Ferrers, United KingdomHQ checked Sep 17, 2026	51-200	33 contacts →
	Indirect evidence “We develop, manufacture and operate the specialist technology for modular construction of bridges, dams, refineries, power stations, offshore structures, buildings and…” Source: RevenueBase Database · checked Sep 17, 2026
22	DMC Contracts LTD	Indirect evidence	Tilbury, United KingdomHQ checked Sep 17, 2026	51-200	32 contacts →
	Indirect evidence “DMC was founded in by David McCartney, after having worked for 11 years in the Tiling and Terrazzo trade across the UK and Europe.” Source: RevenueBase Database · checked Sep 17, 2026
23	The Austin Company Of UK LTD	Indirect evidence	Watford, United KingdomHQ checked Sep 17, 2026	51-200	31 contacts →
	Indirect evidence “Established in 1938, we are based in Watford, Hertfordshire with a team of 55 full-time professional staff.” Source: RevenueBase Database · checked Sep 17, 2026
24	Mayflower Engineering LTD	Indirect evidence	Sheffield, United KingdomHQ checked Sep 17, 2026	51-200	31 contacts →
	Indirect evidence “Mayflower has over 40 years of experience in design, manufacture and installation of bespoke engineering projects.” Source: RevenueBase Database · checked Sep 17, 2026
25	Kentex Services LTD	Indirect evidence	Woking, United KingdomHQ checked Sep 17, 2026	51-200	29 contacts →
	Indirect evidence “We are specialists in design and build solutions for commercial and industrial buildings.” 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: manufacturing complex developers. 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 manufacturing complex developers.
Partial evidence: Its own public description names part of manufacturing complex developers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name manufacturing complex developers. 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 387 manufacturing complex developers based in the United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,957 reachable decision-makers.

Free signup · no credit card

View the full list →

Manufacturing complex developers based in the United Kingdom at a glance

As of Sep 17, 2026

39.5%Verified-email coverage

12.8Average contacts per company

1-10Median size (employees)

10.3%Largest-city concentration · London

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

196

11-50

124

51-200

201-500

501-1,000

1,001-5,000

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 387 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 manufacturing complex developers, 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 “manufacturing complex developers”. 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 manufacturing complex developers), 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 manufacturing complex developers, 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, 1,957 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.

Manufacturing complex developers by metro

Manufacturing complex developers in London40

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 manufacturing complex developers, 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 manufacturing complex developers are there based in the United Kingdom?

RevenueBase identified 387 manufacturing complex developers 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?

TSL, headquartered in Gerrards Cross, tops this list with the largest team on record.

Which city has the most manufacturing complex developers?

London leads with 40 headquartered companies, followed by Manchester (8) and Sheffield (7).

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 1,957 verified decision-maker contacts tracked across these 387 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.

Ready to reach these companies? Verified emails and direct dials for all 387 manufacturing complex developers based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Manufacturing complex developers by geography

Browse the directory

Browse: Companies home · All United Kingdom lists · All Manufacturing complex developers lists · New lists

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.