Company lists · Data refreshed November 2026

Top 25 Safety-critical systems developers based in the United Kingdom

RevenueBase identified 118 company matches for safety-critical systems developers associated with the United Kingdom as of November 2026 and tracks 822 professional contacts across them, including 327 with verified work emails. London is the largest hub.

This list covers company matches for safety-critical systems developers 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 November 6, 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 Nov 6, 2026 How this list was built
118Companies
822Contacts tracked
327Verified emails
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The 25 largest safety-critical systems developers based in the United Kingdom

Ranked by team size
Top 25 of 118 company matches for safety-critical systems developers based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchBox, United KingdomHQ recorded Nov 6, 202651-20071 contacts →

Exact match

“Ebeni is a dynamic company focused on delivering the highest quality, innovative and value for money engineering services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchWesthill, United KingdomHQ recorded Nov 6, 20261,001-5,00058 contacts →

Exact match

“RelyOn delivers end-to-end solutions within applications, simulation technology, managed services, consultancy, and learning for safety critical industries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchNelson, United KingdomHQ recorded Nov 6, 202651-20054 contacts →

Exact match

“Delivering high-integrity engineering where failure is not an option.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchStokesley, United KingdomHQ recorded Nov 6, 202611-5052 contacts →

Exact match

“Applied Integration is one of the UK’s leading independent systems integrators, delivering cutting edge solutions to 21st Century industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchSheffield, United KingdomHQ recorded Nov 6, 202651-20037 contacts →

Exact match

“Servelec Controls develops and integrates bespoke mission-critical systems for national infrastructure by bringing together specialist hardware, software and world-class…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchStafford, United KingdomHQ recorded Nov 6, 202611-5029 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchTrowbridge, United KingdomHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“Robust, well engineered software, delivered on time, within budget, and with the knowledge that your long term peace of mind is at the forefront of our effort.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchWorcester, United KingdomHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“Since 1990, Phixos has supported major programmes through the development, verification and certification of high integrity software, HMI and firmware solutions in partnership…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchGloucestershire, United KingdomHQ recorded Nov 6, 202611-5026 contacts →

Exact match

“At Hamiltonian Dynamics we have a secure by design engineering mindset built into the core of our company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchSwindon, United KingdomHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“High Speed Rail Solutions understands the criticality of safe integration in railway projects and know the risks that can quickly emerge when engineering changes are being made to…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchFarnborough, United KingdomHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“KISPE is a programme engineering, systems engineering, design and integration and training company, which builds on over 25 years of experience in the space system…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchWarwick, United KingdomHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“We’re not just experts in Systems, Software, and Safety Engineering - we’re the shield that protects lives, brands, and reputations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchDerby, United KingdomHQ recorded Nov 6, 202611-5015 contacts →

Exact match

“Encompass Engineering is an engineering consultancy that delivers specialist assurance, quality and engineering services to the Rail, Defence, Nuclear and Aerospace industries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Nextec Engineering Limited is a specialist engineering consultancy with extensive experience in engineering safety, systems engineering, technical consulting and assurance…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchEast Grinstead, United KingdomHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“At Igence, our 20+ years experience with 500+ man years of cumulative software capabilities enables us to modernise systems, integrate software packages, enable visualisation of…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchWrexham, United KingdomHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Applied Software Engineering Ltd - Embedded Software Specialists Whether your requirement is for maintenance of your current system, new software for your platform or a whole new…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Adelard, part of NCC Group, brings over 35 years of experience in systems assurance engineering to help organisations develop dependable, high-integrity systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchEdinburgh, United KingdomHQ recorded Nov 6, 20261-109 contacts →

Exact match

“Embed Software Limited is an independent high-integrity safety critical software development and engineering services company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchCoalville, United KingdomHQ recorded Nov 6, 20261-109 contacts →

Exact match

“IDE Systems is the trading name of Innovation & Design Engineering Ltd.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchStafford, United KingdomHQ recorded Nov 6, 20261-109 contacts →

Exact match

“Functional Management – Engineering, design & implementation of DCS, Instrument & electrical systems including safety system IEC61508 and IEC61511.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchManchester, United KingdomHQ recorded Nov 6, 202611-508 contacts →

Exact match

“Ownership - Compliance - Quality In light of recent disasters, owner operators are only too aware of the need to protect personnel, assets and the environment.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchCardiff, United KingdomHQ recorded Nov 6, 202611-507 contacts →

Exact match

“Auvation, based in Cardiff, UK, has been a trusted provider of advanced software solutions and professional services for over 30 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchEllesmere Port, United KingdomHQ recorded Nov 6, 202611-507 contacts →

Exact match

“Safety Critical Engineering | Planned Preventative Maintenance | Reverse Engineering Automotive, rail, nuclear, chemical, and aerospace all depend heavily on the integrity of…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-507 contacts →

Exact match

“We’re straight-talking, software engineering specialists, trusted by government, financial services and global organisations to modernise critical systems, remove bottlenecks and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchLondon, United KingdomHQ recorded Nov 6, 20261-107 contacts →

Exact match

“Bermondsey Electronics Limited is a highly experienced embedded system design house.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 118 safety-critical systems developers based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 327 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Safety-critical systems developers based in the United Kingdom at a glance

As of Nov 6, 2026
39.8%Verified-email coverage
7.0Average contacts per company
1-10Median size (employees)
15.3%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
77
11-50
31
51-200
5
1,001-5,000
2

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 118 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 “safety-critical systems developers” 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 327 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 November 6, 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 “safety-critical systems developers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many safety-critical systems developers are there based in the United Kingdom?

RevenueBase identified 118 company matches for safety-critical systems developers associated with the United Kingdom as of November 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?

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

Which city has the most safety-critical systems developers?

London leads with 18 company records, followed by Bristol (4) and Cardiff (3).

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 327 professional contacts with verified work emails tracked across these 118 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 November 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 118 safety-critical systems developers based in the United Kingdom. Start with a free account, no credit card.

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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.