Company lists · Data refreshed September 2026

Top 25 As9100 certified manufacturers based in the United Kingdom

Name: As9100 certified 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 30, 2026 177 companies tracked

RevenueBase identified 177 company matches for as9100 certified manufacturers associated with the United Kingdom as of September 2026 and tracks 2,946 professional contacts across them, including 897 with verified work emails. Bristol is the largest hub.

This list covers company matches for as9100 certified manufacturers associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 30, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 30, 2026 How this list was built

177Companies

2,946Contacts tracked

897Verified emails

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The 25 largest as9100 certified manufacturers based in the United Kingdom

Ranked by team size

Top 25 of 177 company matches for as9100 certified manufacturers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 30, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Accrofab	Exact match	Derby, United KingdomHQ recorded Sep 30, 2026	201-500	184 contacts →
	Exact match “Accrofab are a class-leading manufacturer of precision fabricated and machined parts for the aerospace, defence and power generation industries.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
2	SIGMA	Exact match	Hinckley, United KingdomHQ recorded Sep 30, 2026	201-500	82 contacts →
	Exact match “Sigma is a leading manufacturer of aerospace pipe & tube assemblies, ducts, manifolds, fabrications & sub-assemblies, sheet & machined details, and specialist fasteners.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
3	JJ Churchill LTD	Exact match	Nuneaton, United KingdomHQ recorded Sep 30, 2026	51-200	81 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
4	Aerotron Composites LTD	Exact match	Chatteris, United KingdomHQ recorded Sep 30, 2026	51-200	81 contacts →
	Exact match “Aerotron Composites Ltd has a wide range of expertise and experience in designing and creating composites structures, utilising a full range of capabilities from product design…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
5	Senior Aerospace Weston	Exact match	Earby, United KingdomHQ recorded Sep 30, 2026	201-500	71 contacts →
	Exact match “Senior Aerospace Weston, located in Lancashire, England, is a leading supplier of a wide range of complex precision machined components, and sub- assemblies for original equipment…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
6	Brookhouse Aerospace Limited	Exact match	Darwen, United KingdomHQ recorded Sep 30, 2026	51-200	64 contacts →
	Exact match “Brookhouse Aerospace Limited manufactures a range of composite structures, producing monolithic and sandwich parts from a range of materials, including carbon fibre, glass and…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
7	Rotec Aerospace Limited	Exact match	Evesham, United KingdomHQ recorded Sep 30, 2026	11-50	53 contacts →
	Exact match “Rotec specialises in complex 3, 4 and 5 Axis alongside the latest Slidinghead technology, with the capability to machine in a variety of exotic and conventional materials.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
8	Midland Aerospace	Exact match	Sutton-in-ashfield, United KingdomHQ recorded Sep 30, 2026	51-200	49 contacts →
	Exact match “Midland aerospace part of the pan-European engineering group Calder Precision is a dynamic company based on the skills and knowledge of an exceptional workforce.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
9	Bowmill Engineering LTD	Exact match	Poole, United KingdomHQ recorded Sep 30, 2026	51-200	48 contacts →
	Exact match “Bowmill Engineering provide peerless precision engineering to the highest standards for the aerospace sector and other industries.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
10	Currock Engineering Company Limited	Exact match	Chelmsford, United KingdomHQ recorded Sep 30, 2026	51-200	48 contacts →
	Exact match “Currock Engineering Company Limited is a Precision Engineering company, Established in 1964, based out of Unit 9-11 Tattersall Way, Widford Industrial Estate, Chelmsford, ESSEX…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
11	JK Engineering	Exact match	Kings Langley, United KingdomHQ recorded Sep 30, 2026	51-200	48 contacts →
	Exact match “JK Engineering is a state of the art manufacturing company producing the highest quality components for sectors such as aerospace, medical, motorsport and defence.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
12	Cornelius Electronics LTD	Exact match	Port Talbot, United KingdomHQ recorded Sep 30, 2026	201-500	44 contacts →
	Exact match “Cornelius Electronics is an AS9100 sub-contract manufacturer supporting OEMs, machine builders and business owners worldwide who have a demand for a reliable, long term…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
13	Aero Fabrications Limited	Exact match	Watnall, United KingdomHQ recorded Sep 30, 2026	201-500	44 contacts →
	Exact match “Aero Fabrications Limited is a privately owned business located in the heart of the United Kingdom.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
14	Senior Flexonics	Exact match	Lymington, United KingdomHQ recorded Sep 30, 2026	51-200	43 contacts →
	Exact match “Lymington Precision Engineers is a leading manufacturer of precision machined components, assemblies and kit sets for the Oil and Gas, Telecommunications, Aerospace and Defence…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
15	Middlesex Aerospace	Exact match	Basingstoke, United KingdomHQ recorded Sep 30, 2026	51-200	43 contacts →
	Exact match “Middlesex Aerospace are a leading engineering and strategic manufacturing company.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
16	Martin Precision	Exact match	Lanark, United KingdomHQ recorded Sep 30, 2026	51-200	43 contacts →
	Exact match “Martin Precision serves as a vital link in the supply chain to some of the world’s best-known companies.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
17	Senior Aerospace Thermal Engineering	Exact match	Royston, United KingdomHQ recorded Sep 30, 2026	51-200	36 contacts →
	Exact match “Senior Aerospace Thermal Engineering is a leading aerospace components manufacturer, supplying aero engines and airframe” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
18	Mellish IS An API Qualified Company 20e & 20f	Exact match	Aldridge, United KingdomHQ recorded Sep 30, 2026	51-200	35 contacts →
	Exact match “Mellish Engineering Services Limited is an API Q1 and ISO 9001:2015 certified fastener manufacturer specializing in safety critical fasteners and machined components.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
19	Geometric Manufacturing LTD	Exact match	Tewkesbury, United KingdomHQ recorded Sep 30, 2026	51-200	34 contacts →
	Exact match “Geometric Manufacturing provides a flexible solution to your production requirements.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
20	Datum Tool Design	Exact match	Lisburn, United KingdomHQ recorded Sep 30, 2026	51-200	31 contacts →
	Exact match “Datum Tool Design is a UK based aerospace tooling engineering company supporting global aerospace manufacturers” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
21	Active Electronics PLC	Exact match	High Wycombe, United KingdomHQ recorded Sep 30, 2026	11-50	30 contacts →
	Exact match “Active Electronics PLC was established in 1974 and has become a leading Service Provider for electronic components and assemblies to the Aerospace, Defence and Hi-Rel Industries.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
22	Q-Mass	Exact match	East Kilbride, United KingdomHQ recorded Sep 30, 2026	11-50	30 contacts →
	Exact match “Q-Mass is an innovative leader in CNC precision machining manufacturing and service solutions.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
23	SGA Technologies Limited	Exact match	Saffron Walden, United KingdomHQ recorded Sep 30, 2026	51-200	29 contacts →
	Exact match “When your application demands zero failure, you need a manufacturer you can trust completely.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
24	WG Jones Limited	Exact match	Verwood, United KingdomHQ recorded Sep 30, 2026	51-200	29 contacts →
	Exact match “WG Jones was established in 1975 and has been under current ownership since 1982.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
25	Helander Precision Engineering	Exact match	Tewkesbury, United KingdomHQ recorded Sep 30, 2026	51-200	28 contacts →
	Exact match “Helander Precision Engineering is a leading UK‑based manufacturer of complex, high‑precision, and mission‑critical components for global OEMs and tiered suppliers across the…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “as9100 certified manufacturers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 177 as9100 certified manufacturers based in the United Kingdom

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As9100 certified manufacturers based in the United Kingdom at a glance

As of Sep 30, 2026

30.4%Verified-email coverage

16.6Average contacts per company

11-50Median size (employees)

2.8%Largest-city concentration · Bristol

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

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 177 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United Kingdom whose business descriptions match “as9100 certified manufacturers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 897 professional contacts with verified work emails across the full matched dataset. 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 30, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “as9100 certified manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many as9100 certified manufacturers are there based in the United Kingdom?

RevenueBase identified 177 company matches for as9100 certified manufacturers associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Accrofab tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most as9100 certified manufacturers?

Bristol leads with 5 company records, followed by Poole (5) and Basildon (4).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 897 professional contacts with verified work emails tracked across these 177 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 30, 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 SmartSearch, 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.