Company lists · Data refreshed September 2026
Top 25 Security firms based in Manchester, United Kingdom
RevenueBase identified 92 security firms headquartered in Manchester, United Kingdom as of September 2026 and tracks 1,741 professional contacts across them, including 441 with verified work emails. London is the largest hub.
This list covers security firms headquartered in Manchester, 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, how directly it supports the match, and when it was last checked. Data refreshed September 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.
The 25 largest security firms based in Manchester, United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | FGH SecurityIndirect evidence | 649 | |||
“Established in 2003, FGH are trusted by international brands to keep their assets and millions of people safe every year.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | Marlowe Fire & SecurityStrong evidence | 389 | |||
“Mitie Fire & Security is part of Mitie, the UK’s leading facilities management and professional services company, delivering integrated fire and security solutions that protect…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | Universal Support Services Group Ussg LTDStrong evidence | 70 | |||
“USSG holds SIA ACS-approved contractor status for the provision of Security Guarding Services in the heart of Manchester, renowned for its professional security services…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 47 | ||||
“We're here to help you sufficiently protect your valued goods - whether its safeguarding items in your home or putting a security strategy in place for your business, we've got…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | 28 | ||||
Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 23 | ||||
“Clarion Security Systems is dedicated to the design, installation and maintenance of security systems for commercial enterprises and public sector organisations- IP CCTV Access…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | 22 | ||||
“At Auxilium Services Ltd, we are your trusted partner in safeguarding people, property, and peace of mind.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | Maybank SecurityStrong evidence | 18 | |||
“We supply quality bespoke security for clients throughout Great Britain.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | 13 | ||||
“Founded in 2007, MSS Security originally began operating in Manchester’s Northern Quarter providing Door Supervisors to the stylish and unique vibrant venues.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | Securi ServeStrong evidence | 12 | |||
“Securi Serve is a privately owned independent company based in Manchester supplying professional security services and products.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 8 | ||||
“Plus Security is a specialist Manned Guarding Services Company who provide professional services to the Private and Public Sector Nationwide.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | 8 | ||||
“Female owned and led Security business.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | 7 | ||||
“At ASM, effective security is about more than great technology.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | 6 | ||||
“BSSL has been delivering trusted commercial and residential security solutions across Manchester and surrounding areas.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | Rk9 SecurityStrong evidence | 6 | |||
“Leading security and enforcement company in the North West.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | 5 | ||||
“Absolute Digital Solutions Limited is a security company protecting commercial and residential assets nationwide” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | 5 | ||||
“RED CCTV Protecting People, Property and the Planet since 2012 Red CCTV is a leading site security company based in the UK that work with the very latest technologically advanced…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | 5 | ||||
“Hawk Security & Surveillance Ltd is a leading supplier and installer of the latest in hi-tech security systems for commercial businesses.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | 4 | ||||
“At Special Projects Group, we have taken it upon ourselves to revolutionise the security industry.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | Mono Alarm Installations LimitedIndirect evidence | 4 | |||
“MONO ALARM INSTALLATIONS LIMITED is a facilities services company based out of BRIERLEY HOUSE 335 MANCHESTER ROAD EAST LITTLE HULTON, MANCHESTER, United Kingdom.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | Signal Electronic Systems LTDStrong evidence | 3 | |||
“Signal Electronic Systems LTD specialises in Electronic Security Systems, delivering high-quality installations built on secure, network-first design principles.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | Nova Alarms Northwest LTDStrong evidence | 2 | |||
“We are an independent, family-owned business that provides a wide range of security systems to the North West.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | Parr Fire Protection Service'sIndirect evidence | 1 | |||
“BAFE & ISO ACCREDITED • Access Control & Intercoms Installation and Maintenance • AOV System’s Installation & Maintenance • CCTV Installation, Maintenance, and Monitoring • Dual…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | SCS LTDIndirect evidence | 1 | |||
“SCS Ltd is a diverse and ambitious company who have been protecting people and property for over twenty years.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1 | ||||
“Whether its commercial or residential sites we provide security solutions to help protect your valuable assets.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 92 security firms based in Manchester, United Kingdom
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Security firms based in Manchester, United Kingdom at a glance
As of Sep 6, 2026Companies by employee count
Email recency for this list is measured across the whole United Kingdom list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Manchester, over 92 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 security firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Manchester, United Kingdom whose own description of what they do matches “security firms”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among security firms, and records with no verified work email. Companies headquartered outside Manchester 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 an evidence 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, 441 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 6, 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.
Security firms by metro in the United Kingdom
- Security firms in London740
- Security firms in Manchester92
- Security firms in Birmingham81
- Security firms in Leeds50
- Security firms in Bristol43
- Security firms in Glasgow40
- Security firms in Liverpool38
- Security firms in Leicester25
- Security firms in Sheffield25
Frequently asked
How many security firms are there based in Manchester, United Kingdom?
RevenueBase identified 92 security firms headquartered in Manchester, 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?
FGH Security, headquartered in Manchester, tops this list with the largest team on record.
Which city has the most security firms?
London leads with 740 headquartered companies, followed by Manchester (92) and Birmingham (81).
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 441 verified decision-maker contacts tracked across these 92 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 6, 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.