Complii
Complii is a UK-based integrated provider of building safety and regulatory compliance services, delivering water hygiene, air, fire, electrical, lift/escalator, and security services to enterprise and public sector clients through approximately 20 acquired specialist businesses operating under a unified brand.
- Company typePrivate
- Founded2019
- HeadquartersLondon, United Kingdom
- Headcount101–250
- GTM typeB2B
- OfferingServices
What Complii does
Complii is a UK-based integrated provider of building safety and regulatory compliance services, established in 2019 and headquartered in London. The company delivers compliance work across six core disciplines — water hygiene, air hygiene, fire safety, electrical compliance, lifts/escalators, and security systems — to enterprise and public sector clients across England, Scotland, and Wales. Complii operates through a 'buy and build' model, having completed approximately 20 acquisitions of specialist compliance firms which it retains as sub-brands (e.g., Zeta Services, ETM, Intersafe, CGE, Tay Fire and Security, Capital Fire Doors, Classic Lifts, The Escalator Company) operating under the unified Complii brand. The company rebranded from Compliance Group to Complii in November 2025.
Underlying technology includes the proprietary ZetaSafe digital compliance platform (operated by Zeta Services), which provides critical asset validation, schematic reconciliation, scheduling, temperature monitoring, and audit trail management for water safety compliance, alongside the EvoMetric compliance management platform. The group deploys IoT remote temperature monitoring for continuous Legionella risk management. These platforms generate structured compliance data across the service portfolio, supporting recurring regulatory cycles for clients.
Complii generates revenue through professional services contracts and managed services arrangements, delivering testing, inspections, risk assessments, maintenance, installation, and remedial works. The go-to-market is sales-led and direct, with services delivered by specialist divisions to enterprise and public sector clients (healthcare, hospitality, education, construction, manufacturing, retail). Pricing is bespoke and quote-based, with contract evidence including a five-year, £950,000 electrical safety testing engagement with the University of Warwick and national multi-site rollouts such as Cineworld's 76 UK cinemas. The company is backed by private equity firm Ansor and operates with circa 650 employees serving 5,500+ clients across 10,000+ sites.
Complii firmographics
Firmographics- Name
- Complii
- Legal name
- Compliance Group Limited
- Website
- https://www.complii.com/
- Company type
- Private
- Founded year
- 2019
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- Complii is a UK-based integrated provider of building safety and regulatory compliance services, delivering water hygiene, air, fire, electrical, lift/escalator, and security services to enterprise and public sector clients through approximately 20 acquired specialist businesses operating under a unified brand.
- Ownership category
- akta.pro rank
Complii industry classification
Industry- Product category
- Building Safety & Regulatory Compliance Services
- NAICS
- Testing Laboratories and Services (54138)
- SIC
- Services-Testing Laboratories (8734), Sanitary Services (4950)
- akta.pro primary industry
- Incident Reporting, Deficiency Management & Compliance Documentation Services (Digital Logs/Records) (BPABAHAN)
- akta.pro secondary industries
- Pipework, Calorifier & Heat Exchanger Descaling/Decontamination (BPABAJAI), Water Safety Plans, Training & Documentation (Logbooks, SOPs) (BPABAJAL), Disinfection, Sanitization & Infection Prevention Services (BPABABAE), Commercial HVAC Maintenance Agreements & PM Programs (HSAOAHAJ)
Keywords
Where Complii is headquartered
LocationHeadquarters
- HQ city
- London
- HQ country
- United Kingdom
- HQ region
- Europe
Offices2 records
Markets served
Complii business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales, Others
Revenue model
- Building Compliance Services: Complii generates revenue through delivering integrated building safety and regulatory compliance services across water, air, fire, electrical, lifts/escalators, and security. Services include testing, inspections, risk assessments, maintenance, installation, and remedial works. Revenue is driven by contract work with commercial, public sector, and industrial clients across the UK.
- Specialist Compliance Services (acquired businesses): Revenue is generated through multiple specialist subsidiaries (ETM, Zeta, Intersafe, CGE, PH Water, ARA, Classic Lifts, and others) each delivering niche compliance services under the Complii umbrella. These operate as separate divisions with their own client relationships, integrated under the unified brand.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | No public pricing tiers disclosed; services are quote-based. |
Go-to-market motion2 records
Distribution channels1 record
Marketing channels3 records
Complii product offering
Product offeringCore offering
Complii is an integrated provider of building safety and regulatory compliance services across six specialist divisions: water hygiene (Legionella risk management), air hygiene, fire safety (passive and active), electrical compliance, lifts/escalators, and security systems. Services include testing, inspections, risk assessments, maintenance, installation, and remedial works delivered by qualified accredited engineers directly to enterprise, commercial, and public sector clients across the UK through 18+ acquired specialist brands unified under the Complii brand.
Product overview
Complii is an integrated provider of building safety and regulatory compliance services in the UK, formerly known as Compliance Group. The company operates as a unified platform delivering coordinated compliance solutions across six specialist divisions: Water Hygiene Services, Air Hygiene Services, Fire Services, Electrical Services, Lift Services, and Security Systems. The portfolio includes 18+ acquired specialist brands including ETM, CGE, Intersafe, Zeta, ARA, PH Water, Classic Lifts, The Escalator Company, Capital Fire Doors, Total Fire Safety, Alpha Fire Alarms, Fire Safe Services, Flair Developments, and Tay Fire and Security. The company serves sectors including hospitality and leisure, manufacturing, social housing, public sector, construction, healthcare, pharmaceutical, education, and retail, helping clients reduce risk, improve safety, and assure regulatory compliance.
Differentiator
Problem solved
Functional benefit
Brands
- Zeta Services: Legionella risk assessment and water system hygiene management specialists
- PH Water Technologies
- ARA Environmental Ltd
- Electrical Testing Midlands (ETM)
- Intersafe
- CGE
- Flair Developments
- Alpha Fire Alarms
- Total Fire Safety
- Capital Fire Doors
- Tay Fire & Security
- Classic Lifts
- The Escalator Company
Products and services
- Water Hygiene Services Legionella risk management and water hygiene safety services including risk assessments, temperature monitoring, system maintenance, TMV servicing, water sampling, disinfection, and remedial works. Delivered by specialist divisions (Zeta, ARA, PH Water) to commercial, healthcare, public sector, and industrial clients across the UK.
- Air Hygiene Services Ventilation and air quality compliance services including indoor air quality testing, ductwork cleaning, ventilation system maintenance, and commissioning to ensure compliance with health and safety regulations for commercial buildings.
- Fire Services Comprehensive fire safety and passive fire protection compliance services covering fire risk assessments, fire alarm testing and installation, suppression systems, emergency lighting, fire door installation and maintenance, compartmentation surveys, and ongoing fire safety consultancy for commercial, public sector, and construction clients.
- Electrical Services Electrical safety testing and compliance services including Fixed Wire Testing (EICR), Portable Appliance Testing (PAT), emergency lighting testing, thermographic surveys, LED installations, EV charger installation, lightning protection, and remedial works delivered by NICEIC-approved contractors across the UK.
- Lift Services Complete lift, escalator, and travelator compliance solutions including inspection, planned preventative maintenance (PPM), repair, modernisation, new installation, emergency call-outs, and spare parts supply. Delivered by Classic Lifts and The Escalator Company across the UK and Ireland.
- Security Systems Licensed security compliance solutions including access control, CCTV, intruder alarms, and security system maintenance and installation, with NSI Gold and BAFE accreditations, delivered to commercial and public sector clients.
Quantifiable outcome
- Over 122,000 scheduled compliance tasks completed in the first full year for King's College Hospital NHS Foundation Trust
- +2 more outcomes
Companies that use Complii
Customer profileNamed customers8 records
Segments11 records
Ideal customer profiles2 records
Complii technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
Complii partnerships and signals
Strategic signalScale indicators8 records
Recent moves6 records
Expansion highlights5 records
Complii competitors and assessment
Company assessmentBroad incumbents
- Sodexo: Global facilities management and on-site services group with UK building maintenance and compliance workstreams. Comparable as a broad incumbent with overlapping service lines in fire, HVAC and electrical maintenance.
- ISS A/S: Global facility services provider with technical building services and compliance offerings in the UK. Comparable through diversified FM service delivery to enterprise and public-sector clients.
- Atalian Servest: European facility services group with significant UK FM and technical maintenance operations. Comparable as a multi-discipline building services incumbent.
- Mitie Group: UK-listed facilities management and technical services provider with fire, security and building compliance offerings. Comparable as a UK-based multi-discipline FM/compliance incumbent at significantly larger scale.
- Serco Group: UK-listed public-sector outsourcer with adjacent building, facilities and compliance services. Comparable as a UK incumbent serving government, healthcare and education end-markets.
Emerging players
- Ricardo plc: UK-listed engineering and environmental consultancy with building safety, energy efficiency and compliance advisory capabilities. Comparable as a UK-domiciled technical compliance peer at smaller scale.
Direct peers
- Marlowe plc: UK-listed acquirer of regulated fire safety, water hygiene and air quality compliance businesses. Closest UK publicly traded analogue to Complii's multi-disciplinary compliance roll-up strategy.
- Bureau Veritas: Global testing, inspection and certification (TIC) group with substantial UK building compliance operations spanning fire, water hygiene and electrical safety. Directly comparable in service mix and regulated end-markets.
- SGS SA: Swiss-headquartered TIC major with UK operations covering building safety inspections, fire and water hygiene testing. Comparable through global TIC capabilities and UK service overlap.
- Intertek Group: Global TIC provider with UK building, fire and electrical safety assurance services. Comparable as a diversified compliance and testing peer serving enterprise and public-sector clients.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
Complii social profiles
Digital presenceComplii compliance and trust
Trust signalCompliance17 records
Complii financial estimates
Financial estimateRevenue estimate
Valuation estimate
Complii leadership team
Management profileNumber of profiles
Profiles1 record
Complii subsidiaries and ownership
Company hierarchySubsidiaries14 records
Complii funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Complii M&A and investment
M&A and investmentM&A21 records
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Complii
What does Complii do?
Complii is an integrated provider of building safety and regulatory compliance services across six specialist divisions: water hygiene (Legionella risk management), air hygiene, fire safety (passive and active), electrical compliance, lifts/escalators, and security systems. Services include testing, inspections, risk assessments, maintenance, installation, and remedial works delivered by qualified accredited engineers directly to enterprise, commercial, and public sector clients across the UK through 18+ acquired specialist brands unified under the Complii brand.
Is Complii a public or private company?
Complii is a private company. It is classified as private equity controlled and is currently operating.
When was Complii founded?
Complii was founded in 2019. It employs 101 to 250 people.
Where is Complii based?
Complii is headquartered in London, United Kingdom, in the Europe region.
How does Complii make money?
Two revenue lines are on record. Building Compliance Services are the primary driver. The others are specialist Compliance Services (acquired businesses).
Who are Complii's main competitors?
Broad incumbents on record are Sodexo, ISS A/S, Atalian Servest, Mitie Group and Serco Group. Ricardo plc is listed as an emerging player. Direct peers are Marlowe plc, Bureau Veritas, SGS SA and Intertek Group.
Does Complii have an API?
No public API is recorded for Complii.
What industry is Complii in?
Complii's product category is Building Safety & Regulatory Compliance Services. Its primary akta.pro industry code is BPABAHAN, Incident Reporting, Deficiency Management & Compliance Documentation Services (Digital Logs/Records), with a secondary code of BPABAJAI, Pipework, Calorifier & Heat Exchanger Descaling/Decontamination. Its NAICS code is 54138 and its SIC code is 8734.