Occupational Health Companies in London: 43 Active Firms (2026)
Occupational health companies provide workplace health assessments, surveillance and return-to-work support for employers across London.
Employer buying usually sits with HR, health and safety, facilities, and risk teams, with finance involved where sickness absence or insurance costs are material. The commercial shape is B2B: multi-site employers, regulated worksites, schools, care providers, construction contractors and corporate estates tend to buy recurring clinical access, case management and surveillance programmes rather than ad hoc appointments. Engagements are typically account-managed retainers or framework call-offs, using clinicians, admin coordinators and operational schedulers to handle referrals across London boroughs. The buyer behaviour is practical and compliance-led, with return-to-work advice, reasonable adjustment input and role-specific medical fitness sitting close to line-manager decisions.
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London has 43 actively trading occupational health companies, a small specialist market rather than a broad software-style supplier base. Reported headcount totals 278, pointing to a labour-intensive model where clinical capacity and scheduling discipline matter more than pure platform scale. The commercial centre of gravity appears to sit below national-provider scale: only a narrow slice has crossed larger revenue thresholds, while newer incorporations remain present but not dominant. For researchers, that makes the London list more useful for mapping specialist employer-service providers than for tracking a large population of generalist healthcare groups.
Employer demand is shaped more by health and safety law than by a dedicated occupational-health licensing regime. HSE guidance puts the duty on employers to prevent work-related physical and mental ill health, which pulls providers into surveillance, medical fitness checks, absence reviews and return-to-work risk assessment. The equality-law overlap matters in referrals involving disability adjustments or long-term conditions, because advice has to be clinically credible and usable by HR and line managers. GOV.UK provider research also points to a fragmented market operating near capacity, with voluntary accreditation acting as a quality signal rather than a universal gatekeeper.
The sector appears likely to remain capacity-constrained while employers ask for faster triage, clearer absence advice and more defensible adjustment recommendations. Smaller providers tend to compete on clinical access, local employer knowledge and responsiveness across boroughs, while larger providers can package surveillance, case management and reporting for multi-site estates. Consolidation may be selective rather than broad, because clinical staffing, governance and account coverage are difficult to absorb cleanly. Demand from mental-health, disability and return-to-work referrals has been pushing the service mix beyond periodic medical checks, but buyers still appear cautious about paying for anything that does not reduce operational risk or help them meet employer duties.
What’s in the file
One row per company, 50+ columns — everything below plus each company’s verified directors, from Companies House filings.
Company data
Verified directors — included
43
Active firms
2026
1
£5M+ firms
Revenue band
5
New since 2022
Incorporated firms
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Key facts
About 2% of the trading cohort reports turnover above £5M (1 of 43 firms) — the rest sits below that revenue band.
11% of the cohort was incorporated since 2022 (5 firms), so a sizeable share is in its first few filing cycles.
HSE frames occupational health through employer duties to prevent physical and mental ill health from business activities, rather than through a single occupational-health licensing regime.
GOV.UK’s 2023 consultation put occupational-health access at 45% of workers in Great Britain, with 92% of large employers offering some form of service compared with 18% of small employers.
A GOV.UK 2023-24 survey of 200 NHS, in-house and private providers found providers working near maximum, at maximum or above full capacity during the previous 12 months.
Quality assurance remains partly voluntary, with only around half of surveyed providers accredited or working towards accreditation in 2023-24.
GOV.UK’s 2021 international comparison found occupational-health service coverage ranged from approximately 40% in the Republic of Ireland to almost 90% in Finland.
Top London Occupational Health companies
Financial sub-scores
Computed from 3 filingsProvides occupational health services to employers, including occupational health assessments, management referrals, health surveillance, pre‑employment screening, physiotherapy, counselling,…
Serves UK employers of all sizes across all industries, including HR, health and safety, and management teams responsible for workforce health, absence management, compliance and wellbeing.
Financial Health
WeakWeak
Location
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Financial sub-scores
Computed from 5 filingsProvides occupational health services for employers, including management referral assessments, health surveillance, workplace medicals, vaccinations and blood tests, fitness‑for‑work evaluations,…
Serves employers and managers needing occupational health support for their workforce, including organisations with safety-critical, industrial, construction, transport, mining, airside, shift-work…
Financial Health
StableStable · 0% CAGR over 4y
Location
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Provides NHS, private and workplace healthcare services including mental health talking therapies, physiotherapy and dermatology. Also delivers employee assistance programmes, occupational health…
Serves NHS-referred and self-referring patients, private individuals, employers seeking workforce health support, and healthcare professionals across mental health, physical health and dermatology…
Financial Health
N/AN/A
Location
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Financial sub-scores
Computed from 5 filingsProvides occupational health services to employers, including workplace medicals and safety‑critical assessments, health surveillance and screening, management referrals, ergonomic assessments, drug…
Serves employers needing occupational health support for staff, including rail and construction companies, transport/driving employers, safety-critical workplaces, and organisations managing employee…
Financial Health
StrongStrong · Growing, Hiring · 10% CAGR over 4y
Location
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Financial sub-scores
Computed from 5 filingsProvides occupational health and workplace medical services for employers, including health surveillance, fitness‑to‑work assessments, return‑to‑work referrals and employee screening. Also offers…
Serves UK employers of all sizes, from micro-businesses and SMEs to large corporations, buying occupational health and employee wellbeing services. Also sells private health services direct to…
Financial Health
StrongStrong
Location
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Financial sub-scores
Computed from 3 filingsProvides private GP services and travel medicine, including same‑day consultations, vaccinations, sexual health testing, health screenings, and medical assessments. Also delivers occupational health…
Serves individuals, families and travellers seeking private healthcare, plus employers and organisations needing employee health, occupational health, workplace wellbeing and travel health support,…
Financial Health
HealthyHealthy · -6% CAGR over 2y
Location
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Provides private diagnostic and healthcare services including MRI, CT, X-ray and ultrasound imaging, cardiac screening and monitoring, GP consultations, blood testing, physiotherapy, osteopathy,…
Serves UK private patients, employers needing occupational health screening, and individuals requiring travel, insurance, cast, DVLA or TfL medical assessments.
Financial Health
N/AN/A
Location
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Financial sub-scores
Computed from 3 filingsProvides occupational and workplace health services for employers, including employee health assessments, wellbeing programmes, mental health support, physiotherapy, GP appointments and diagnostic…
Serves UK employers of all sizes, including small businesses, large corporates, remote-focused companies, charities and NGOs, targeting HR and management teams responsible for employee health and…
Financial Health
StableStable · -29% CAGR over 2y
Location
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Computed from 5 filingsProvides occupational physiotherapy and musculoskeletal health services for employers, including phone triage, clinical assessment, rehabilitation, ergonomic and functional capacity evaluations, and…
Sells to employers and organisations needing occupational physiotherapy and musculoskeletal support for their workforce, including HR, occupational health and management teams. Also serves referred…
Financial Health
StrongStrong · Hiring · 22% CAGR over 4y
Location
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Computed from 5 filingsProvides private GP medical services including 24/7 home visits, telephone and video consultations, health screenings, blood and STI testing, workplace flu vaccinations, and corporate health services.
Sells to private patients seeking same-day GP care in London, including people at home, in hotels or offices. Also serves employers needing workplace health services, plus partners such as hotels,…
Financial Health
WeakWeak · -3% CAGR over 5y
Location
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Computed from 4 filingsProvides private general practice services including primary care consultations, preventative health assessments, travel vaccinations and family medicine. Also delivers corporate and occupational…
Serves private individuals and families, plus employers and executives seeking corporate and occupational healthcare, preventative assessments, travel health and complementary medicine through a…
Financial Health
HealthyHealthy · -76% CAGR over 3y
Location
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Computed from 5 filingsProvides workplace health assessments and occupational health support for employers and providers, including DSE and ergonomic assessments, functional capacity evaluations, neurodiversity workplace…
Serves UK employers and occupational health providers, including large OH firms, specialist case managers and HR teams managing employee health, absence, MSK issues, neurodiversity needs or workplace…
Financial Health
StrongStrong · Growing, Hiring · 57% CAGR over 4y
Location
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Computed from 3 filingsProvides aeromedical examinations and certification for pilots and cabin crew, including UK CAA, EASA and FAA medicals. Delivers occupational health services, employee health screening, specialist…
Serves both businesses and individuals, especially aviation employers, air crew and aspiring pilots needing CAA, EASA and FAA medicals. Also sells to employers needing occupational health for staff,…
Financial Health
StableStable · 0% CAGR over 2y
Location
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Computed from 5 filingsOperates private general practice clinics providing same-day GP appointments and video consultations. Offers blood tests, sexual health and STI testing and treatment, vaccinations, medical…
Sells to private patients seeking GP, sexual health, vaccination and screening services, including families and travellers, and also serves employers needing occupational health, corporate healthcare…
Financial Health
DistressedDistressed · -6% CAGR over 4y
Location
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Computed from 2 filingsProvides private GP appointments and medical concierge services, coordinating specialist referrals, diagnostic testing, and second opinions. Also offers corporate health programmes, occupational…
Serves private individuals, families, international patients, corporate groups, hotels and professional organisations seeking discreet private medical access and health support.
Financial Health
StrongStrong
Location
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Computed from 5 filingsProvides primary healthcare and GP services for NHS organisations, public health bodies and businesses. Delivers virtual consultations, visiting services and bespoke clinical programmes, supporting…
Serves NHS and public health organisations, including GP practices, federations, PCNs, ICSs and local authorities, alongside businesses, medical insurance brokers and healthcare intermediaries…
Financial Health
StableStable · Hiring · 12% CAGR over 4y
Location
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Provides remote, doctor-led health screening services for employers. Supplies at-home test kits and diagnostics for conditions such as metabolic syndrome, cancer and diabetes, with result analysis,…
Sells to UK employers, particularly HR, health and safety, and occupational health teams, across sectors such as infrastructure, hospitality and technology that manage workforce wellbeing, sickness…
Financial Health
N/AN/A
Location
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Computed from 3 filingsProvides private general practitioner consultations and preventative health screening services, including genetic testing, cancer risk assessments, whole‑body MRI scans, ultrasound imaging,…
Serves private healthcare patients and families, from newborns to older adults, mainly in London, with nationwide access for video consultations; also addresses UK businesses seeking employee health…
Financial Health
HealthyHealthy · 0% CAGR over 2y
Location
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Computed from 3 filingsProvides psychological screening, wellbeing assessments and trauma therapy, along with training and consultancy on stress, crisis and disaster resilience. Delivers programmes that assess…
Serves organisations managing employee trauma and mental health risk, especially high-risk roles such as police and ambulance services, alongside practitioners and individuals seeking trauma-related…
Financial Health
HealthyHealthy · Growing · 0% CAGR over 2y
Location
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Computed from 3 filingsProvides travel health and occupational health services through a clinic network, including travel vaccinations, antimalarial prescriptions, medical kits, blood tests, wellness screening, and…
Serves individual travellers, people needing work or placement health clearance, and corporate employers seeking staff health support across the UK and Ireland.
Financial Health
StableStable · -92% CAGR over 2y
Location
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Operates private hospitals and clinics providing elective surgery, medical treatments, diagnostic imaging and health screening services. Offers specialties including orthopaedics, cardiology,…
Serves self-paying and privately insured patients across the UK, alongside employers seeking occupational health services and healthcare professionals referring patients for private hospital…
Financial Health
N/AN/A
Location
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Operates private hospitals and clinics providing elective surgery, diagnostic imaging and medical consultations. Services include orthopaedics, cardiology, cosmetic procedures, health checks, scans,…
Serves self-pay and privately insured patients across the UK, alongside employers buying occupational health services and healthcare professionals making referrals.
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Operates private hospitals, clinics and diagnostic centres providing elective surgery, medical treatments and diagnostic imaging. Services include orthopaedics, cardiology, cancer care, cosmetic…
Serves self-pay and insured private healthcare patients across the UK, alongside employers seeking occupational health support and healthcare professionals using hospital facilities.
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Operates a network of private hospitals, clinics and diagnostic centres providing elective surgery, medical treatments and diagnostic imaging. Services include orthopaedics, cardiology, cancer care,…
Serves private healthcare patients across the UK, including self-paying individuals, insured patients and families, plus people seeking specialist consultations, tests and health checks; also…
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How London Occupational Health companies work and how to sell to them
What they do
London occupational health firms earn revenue from recurring employer contracts, framework call-offs and paid clinical referrals rather than consumer-facing care. Pricing usually follows referral volume, appointment type, clinician seniority, turnaround expectations and whether work is remote, clinic-based or on-site. Case management, health surveillance, medical fitness assessments and return-to-work advice sit at the centre of the offer, with reporting and employer guidance wrapped around the clinical appointment. Software portals may support booking, consent and document exchange, but the commercial constraint is often clinician time, scheduling discipline and the quality of written advice that HR and managers can act on.
Who they sell to
Typical buyers are employers whose workforce risk creates a compliance, absence or operational problem. HR directors, Heads of People, health and safety managers, facilities teams, operations directors and procurement teams all appear in the buying group, with finance joining when absence costs or insurance terms are under review. Smaller employers may buy direct after a sickness absence issue or role-risk assessment, while larger estates tend to use supplier panels, formal tenders or broker-led introductions. Sales cycles are usually shorter for discrete referral work and longer for managed services covering multiple sites, reporting requirements and service-level commitments.
What they buy
Most occupational health providers tend to spend on systems and services that reduce clinical admin, protect confidential information and keep employer reporting on schedule. Relevant categories include clinical record systems, referral triage, appointment booking, consent capture, secure document transfer, CRM, billing, workforce scheduling, management reporting and quality-audit tools. They may also buy outsourced accounting, employment law advice, clinical governance support, indemnity cover, recruitment services for clinicians and admin staff, and marketing that reaches HR and health and safety buyers. London operators with clinic access also have facilities, equipment, call-handling and local logistics costs that pure advisory firms may not carry.
Why and how to sell to them
Buying intent tends to show up when providers win a multi-site employer, lose clinical capacity, face report backlogs, prepare for accreditation, or need clearer evidence trails for HSE-linked employer duties. Leadership changes and a move from ad hoc referrals to retained accounts can also prompt supplier review. Outbound messages usually land better when they name the operational bottleneck: reducing appointment leakage, shortening report turnaround, improving referral quality, separating clinical notes from employer-facing advice, or giving account managers clearer service reporting. Claims about growth are less persuasive than evidence that the provider can handle more cases without adding avoidable admin.
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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Frequently asked questions
How many occupational health companies are there in London?
What counts as a occupational health company in this list?
Which are the largest occupational health companies in London?
What do occupational health companies in London actually do?
How does London occupational health compare internationally?
How is this list built and how fresh is the data?
How big are the typical occupational health companies in London?
Are these mostly new or established occupational health companies?
What SIC codes does this use?
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