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Security Companies in Portsmouth: 105 Active Firms (2026)
Physical security companies supply guarding, keyholding and site protection for commercial, public and residential premises across Portsmouth.
Buying centres in Portsmouth tend to sit with facilities managers, estate teams, construction site managers and public-sector procurement officers rather than central technology teams. Work is usually sold as contracted staffing, keyholding, mobile response and risk-led site protection for port, marine, retail, leisure and residential settings. Engagements are practical and rota-driven: a lean contract-management team may cover a handful of premises, while larger operators coordinate front-line operatives across shifts, access points and emergency call-outs. Buyers normally care about licence coverage, response distance and continuity of cover more than packaged consultancy.
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Portsmouth has 105 active trading companies in this physical security cohort, of which 2 report turnover above £5M and 28 have been incorporated since 2022. Employment disclosure is visible across the reporting group: 29 of 29 firms with employment entries, or 100%, report some headcount, and together they account for 248 employees. That points to a fragmented operating base, with a small number of higher-turnover providers sitting alongside newly formed guarding, keyholding and site-protection businesses serving local estates and shift-based contracts.
The SIA is the relevant regulator for contracted private security work, with sponsorship from the Home Office. Licensing turns on the activity being supplied and the contractual route to the customer: manned guarding and keyholding sit within the licensable perimeter when provided under a contract for services. Front-line operatives need the appropriate SIA licence, while directors, partners, managers and supervisors may also need front-line or non-front-line cover where they supply security operatives under contract. For Portsmouth operators serving port, marine, leisure and construction sites, compliance therefore sits inside day-to-day rostering and subcontractor control, not just onboarding.
Local demand appears tied to the practical rhythm of Portsmouth’s built environment: port activity, marine premises, leisure venues, residential blocks and construction sites all create shift patterns that favour operators able to manage labour, licences and response logistics. The cohort has been replenished by newer incorporations, but scale-up scarcity still looks apparent, so consolidation may come through contract wins, subcontracting relationships and owner-managed exits rather than headline transactions. Margin pressure tends to sit around wage costs, travel time and out-of-hours cover, making operational discipline more important than brand visibility.
105
Active firms
2026
2
Above £5M
Reported turnover
28
New since 2022
Recent incorporations
Key facts
About 1% of the trading cohort reports turnover above £5M (2 of 105 firms) — the rest sits below that revenue band.
26% of the cohort was incorporated since 2022 (28 firms), so a sizeable share is in its first few filing cycles.
The Security Industry Authority regulates the UK private security industry, including many contracted guarding and keyholding activities.
SIA licensing applies where work is supplied under a contract for services and involves a licensable activity, including manned guarding and key holding.
Front-line licences cover individuals carrying out licensable work, while directors, managers and supervisors may need front-line or non-front-line licences when supplying security operatives under contract.
UK security exports reached £12.9 billion in 2024, up 16.6% on 2023 in nominal terms.
Physical security accounted for 33% of total UK security exports in 2024, worth £4.3 billion.
Top Portsmouth Security companies
Stag Security Services Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides manned security services including uniformed static guards, mobile patrols, warehouse and factory security, close protection officers, and remote CCTV monitoring. Also offers bespoke…
Serves businesses in Hampshire and southern England, including warehouses, offices, factories and building sites, plus corporate, sporting, TV and individual clients needing security support.
Financial Health
StableStable · Hiring · 8% CAGR over 2y
Location
DANNY'TRS LTD
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy · Growing · 0% CAGR over 4y
Location
KEVIN TIBBLE CONSULTING LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
DistressedDistressed · 0% CAGR over 4y
Location
L DANIELS CONSULTANCY LIMITED
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy · 0% CAGR over 3y
Location
DEFENDER SECURITY AND GUARDING SERVICES LIMITED
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsFinancial Health
DistressedDistressed
Location
ADDED SECURITY TECHNOLOGY LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsSupplies and installs access control and security systems including door entry systems, automated gates, automatic doors, CCTV, barriers and bollards. Provides gate automation, equipment and related…
Sells to both businesses and homeowners, serving domestic and commercial clients needing access control, gate automation, CCTV, door entry, automatic doors, and security barriers across Hampshire and…
Financial Health
StableStable · -90% CAGR over 2y
Location
ADP SECURITY SYSTEMS LIMITED
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides security system installation, monitoring and guarding services for residential and commercial sites, including CCTV, intruder and fire alarms, access control, gates and barriers, remote…
Serves private homeowners, commercial premises and public-sector organisations in Hampshire, Surrey and Sussex, including construction, retail, hotels, pharmaceutical sites, government, museums,…
Financial Health
StrongStrong · -1% CAGR over 3y
Location
Goldcrest Guarding Security Services Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides security services including manned guarding, mobile patrols, keyholding and alarm response, security dog handlers, concierge and front‑of‑house staff, gatemen and traffic banksmen, and…
Serves local government, leisure operators, construction sites, vacant-property owners and commercial organisations across the South of England needing outsourced site security and response cover.
Financial Health
StrongStrong
Location
Eliteserve Ltd
Trajectory
3y · 2024–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
DistressedDistressed
Location
Ford's DIY & Maintenance Services Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides security services including manned security guarding, event and licensed premises security, front-of-house reception support, and security consulting for businesses, venues and organisations…
Serves commercial clients and organisations needing SIA-approved security, including licensed premises, event organisers, and sites requiring guarding, front-of-house support or consultancy for…
Financial Health
WeakWeak
Location
Watchword Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides campus security services for education providers, including security risk assessments, security training, and guarding. Also delivers customer service and administrative support to help…
Serves education institutions with campus environments, including colleges, universities and training providers, targeting facilities, safeguarding, resilience and senior operations teams responsible…
Financial Health
HealthyHealthy · Hiring · 38% CAGR over 4y
Location
KLG Associates Limited
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy · Growing · 0% CAGR over 4y
Location
Athena Support Services Ltd
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsFinancial Health
StableStable
Location
Bastion UK Services Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
StrongStrong · Growing · 0% CAGR over 2y
Location
JSA Security Services Ltd
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsFinancial Health
StableStable
Location
B-Safe Event Security Limited
Trajectory
2y · 2023–NowFinancial sub-scores
Computed from 2 filingsFinancial Health
StrongStrong
Location
Jenkyn Prevent Consultancy And Training Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StrongStrong · Hiring · 19% CAGR over 4y
Location
Equaliser Close Protection Services Ltd
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
HealthyHealthy · 0% CAGR over 2y
Location
DET4 SECURITY SERVICES LTD
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsFinancial Health
StrongStrong
Location
642 Services Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy · 0% CAGR over 4y
Location
SOLENT -CONSULTING LTD
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsFinancial Health
StrongStrong
Location
CALVIN FORCE LTD
Trajectory
3y · 2024–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
StableStable · 0% CAGR over 2y
Location
SIACO LIMITED
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsFinancial Health
StrongStrong · Growing · 0% CAGR over 1y
Location
THE ALARMING COMPANY LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsInstalls and maintains security and safety systems for residential and commercial properties, including intruder alarms, CCTV, access control, and fire protection systems. Also provides temporary…
Serves homeowners, public sector organisations, SMEs, large companies and retailers needing security and protection systems for domestic and workplace premises.
Financial Health
StableStable · -60% CAGR over 5y
Location
THE ALARM PEOPLE LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides installation, maintenance and monitoring of security systems including intruder alarms, CCTV, access control and fire alarms for commercial and residential properties, along with alarm…
Sells to businesses and homeowners needing security systems, including offices, industrial units, agricultural sites, outbuildings and new-build premises. Serves both B2B and B2C customers across the…
Financial Health
StrongStrong · Hiring · 9% CAGR over 4y
Location
EXCEL ALARMS LIMITED
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsDesigns, installs and maintains fire alarm, security and electrical systems for commercial and domestic properties. Services include alarm installation, system testing, maintenance, fault response,…
Serves both businesses and homeowners, especially commercial customers with fire, security and electrical needs. Sells to sectors including logistics, construction, retail and day nurseries, with…
Financial Health
StrongStrong · Growing, Hiring · 13% CAGR over 3y
Location
IWI Associates Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides safety and security consultancy for sports grounds and stadium operators. Conducts safety audits, capacity calculations, risk assessments and mystery spectator visits, develops operational…
Serves sports ground and stadium operators, including football, cricket and motor racing venues, plus governing bodies and multi-agency partners responsible for spectator safety and security.
Financial Health
DistressedDistressed · -42% CAGR over 4y
Location
G & T DOOR ACCESS SOLUTIONS LTD
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsSupplies, installs and services automatic and manual doors, door entry and access control systems for buildings. Also installs door closers, panic hardware, aluminium entrance doors, and window…
Serves commercial property owners, facilities managers, contractors and public-sector organisations across Sussex, Hampshire, Surrey and nearby south coast areas.
Financial Health
StrongStrong · Growing, Hiring · 12% CAGR over 2y
Location
Redvision Cctv Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDesigns and manufactures CCTV surveillance equipment including rugged PTZ dome cameras, static IP cameras, PIR detectors, camera housings, and video management software. Also supplies deployable CCTV…
Serves security integrators, architects, specifiers and end users needing CCTV for demanding outdoor and public-space sites, including councils, utilities, universities, ports, prisons, industrial…
Financial Health
StrongStrong · Growing, Hiring · 8% CAGR over 4y
Location
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How Portsmouth Security companies work and how to sell to them
What they do
Portsmouth security firms usually make money from recurring service contracts rather than one-off projects. Revenue is commonly built from officer-hour rates, per-site retainers, keyholding fees, mobile patrol schedules, alarm-response call-outs and temporary site cover. The service is operational rather than advisory: customers are buying licensed people, supervision, route planning, incident reporting and the ability to fill shifts at short notice. Smaller operators may run lean contract management around subcontracted or part-time front-line labour, while larger local providers need control rooms, supervisors, vehicles, uniforms and insurance. Margin tends to depend on rota accuracy, travel time, wage costs and how tightly incident work is billed back to the customer.
Who they sell to
Most sell to facilities managers, estate managers, construction site leads, venue operators, residential block managers, marine premises and public-sector procurement teams around Portsmouth. The buying decision often sits with operations or property rather than the technology function, although finance and procurement may set supplier terms. Private-sector deals are often won through direct relationships, local referrals, facilities-management partners and renewal of existing site cover. Public-sector and larger estate work tends to involve tender portals, framework-style procurement, insurance checks and evidence of licence compliance. Sales cycles can be short where a site needs urgent cover, but planned guarding or keyholding contracts usually require site walks, risk assessment, pricing review and mobilisation planning.
What they buy
Security operators tend to spend on tools and services that keep shifts filled, prove attendance and reduce back-office friction. Common buying categories include workforce scheduling, time and attendance, payroll, HR, training management, licence-expiry tracking, incident reporting, lone-worker safety, CRM, tender administration, invoicing and credit control. Vehicle tracking, route planning, call-handling, radio equipment, uniforms, vetting, insurance and recruitment support also matter where mobile response or manned guarding is a large part of the offer. For larger contracts, audit trails become part of the product: buyers need to show who attended, when they arrived, what happened on site and whether the work matched the contracted service level.
Why and how to sell to them
Buying interest is usually triggered by operational strain: a new site win, a failed mobilisation, rising overtime, late invoices, missed patrol proof, a licence audit, staff churn or a move from owner-managed spreadsheets into multi-site contract control. Portsmouth security buyers tend to respond to pitches framed around fewer uncovered shifts, faster billing, cleaner compliance evidence and lower supervisor admin, rather than broad efficiency language. Timing matters. A seller approaching after a tender award, public-sector procurement notice, new operations hire or expansion into mobile response can anchor the conversation in mobilisation risk. Proof points should be concrete: rota fill rates, audit readiness, payroll accuracy and incident reporting turnaround.
How this list is built
Data sources
This list is built from UK Companies House filings, XBRL accounts data, and semantic analysis of each company's public website. Revenue and headcount figures come from the most recent filed accounts; where the company has not filed, values are estimated using a model trained on filed history and peer benchmarks and are labelled as estimates.
Classification
Rather than relying solely on SIC codes, Firmbase classifies each company semantically: the company's website is crawled, an AI model reads what the company actually sells, and the company is placed into the relevant industry and subsectors. SIC codes are used as one signal but not the only one. This means a company that registered under a generic SIC code but pivoted into (for example) fintech is correctly identified as fintech, not as its original SIC category.
Freshness
The underlying company data is refreshed from Companies House continuously; filings appear in the list within days of submission. The curated list ordering is regenerated when the underlying data moves meaningfully (company count changes by more than 5%, a new company enters the top-ranked segment, or the filed-revenue numbers for the top firms change). You can see the last-updated timestamp near the top of the page.
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