OSS Managed Services
OSS Managed Services Ltd is a UK facilities management company that delivers planned, reactive and compliance maintenance, technical FM and estate management to retail, corporate, residential and charity clients across the UK.
- Company typePrivate
- Founded1985
- HeadquartersSyston, United Kingdom
- Headcount1–10
- GTM typeB2B
- OfferingServices
What OSS Managed Services does
OSS Managed Services Ltd is a UK facilities management company headquartered in Syston, Leicestershire, that delivers planned, reactive and compliance maintenance, technical FM (lifts, automatic doors/shutters, Legionella management, refrigerant gases reporting, TM44 inspections), and estate management to retail, corporate, residential and charity organisations across England, Scotland, Wales and Northern Ireland. Service delivery is built on a 24/7 CAFM (Computer Aided Facilities Management) system used for tracking maintenance, compliance, asset registers and full client property databases, supported by an in-house technical FM team and a nationwide contractor network with 18+ year relationship tenures. The company operates as the facilities-management subsidiary of the On-Site Services Group, alongside OSS Electrical Services Ltd, OSS Commercial Flooring Ltd and On-Site Services (CBM & PM) Ltd, giving it cross-trade capability in electrical, mechanical, building fabric and flooring disciplines.
The business model is managed-services-led: recurring bespoke contracts with multi-year terms, complemented by technical FM work delivered on either a job-by-job or contractual basis. Pricing is quote-based and not publicly disclosed. Go-to-market is sales-led and direct, with dedicated account managers handling client relationships and a 24/7 helpdesk managing reactive work; the company positions itself as a hands-on partner acting as an extension of client property teams. The firm holds Chartered Building Company status and SSIP/Altius Vendor Accreditation, and follows BS8903 sustainable procurement practices, which collectively support tender credibility with regulated and large-enterprise buyers. Revenue, headcount and ARR are not disclosed; the On-Site Services Group has been operating since 1985 and OSS Managed Services Ltd was incorporated in England and Wales as a private limited company.
OSS Managed Services firmographics
Firmographics- Name
- OSS Managed Services
- Legal name
- OSS Managed Services Ltd
- Website
- https://ossmanagedservices.com
- Company type
- Private
- Founded year
- 1985
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- OSS Managed Services Ltd is a UK facilities management company that delivers planned, reactive and compliance maintenance, technical FM and estate management to retail, corporate, residential and charity clients across the UK.
- Ownership category
- akta.pro rank
OSS Managed Services industry classification
Industry- Product category
- Facilities Management Services
- NAICS
- Facilities Support Services (561210)
- SIC
- Services-Facilities Support Management Services (8744)
- akta.pro primary industry
- Hard FM (Technical Facilities Management: MEP/HVAC/Plumbing/Electrical) (IMAIAAAA)
- akta.pro secondary industries
- Facilities Helpdesk & Service Request Management (FM Call Center/Dispatch) (IMAIALAG), Asset & Space Management Services (CMMS/Asset Tagging/Space Planning/Moves-Adds-Changes) (IMAIAAAL), Soft FM (Cleaning/Janitorial/Sanitation) (IMAIAAAB)
Keywords
Where OSS Managed Services is headquartered
LocationHeadquarters
- HQ city
- Syston
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
OSS Managed Services business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Facilities Management Services: Recurring facilities management contracts providing planned, reactive and compliance maintenance services to retail, corporate, residential and charity organisations across the UK. Services include 24/7 helpdesk support, technical FM, and estate management.
- Technical FM Services: Technical facilities management services offered on either a job-by-job basis or contractual plan. Covers lift maintenance, automatic door/shutter maintenance, Legionella management, and refrigerant gases reporting.
- Estate Management: Estate management services delivered by dedicated account managers, with access to electrical, mechanical, building fabric and flooring expertise through the wider group.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Custom contract-based pricing |
Go-to-market motion1 record
Distribution channels2 records
Marketing channels2 records
OSS Managed Services product offering
Product offeringCore offering
OSS Managed Services Ltd is a UK facilities management company providing planned preventative maintenance, reactive maintenance, and compliance testing for retail, corporate, residential and charity organisations. Its in-house Technical FM team covers lift and automatic door/shutter maintenance, Legionella management, TM44 inspections and refrigerant gas reporting, while dedicated Estate Managers deliver nationwide estate management with cost-reduction reviews. Operations are supported by a 24/7/365 CAFM helpdesk and a national contractor network.
Product overview
OSS Managed Services Ltd is a facilities management company offering a portfolio of services across three core divisions: Planned, Reactive and Compliance Maintenance; Technical FM; and Estate Management. The company operates as part of the On-Site Services Group, which also includes three subsidiary brands — OSS Electrical Services Ltd (commercial electrical solutions), OSS Commercial Flooring Ltd (flooring installation), and On-Site Services CBM & PM Ltd (reactive building maintenance). Services are delivered through a national network of contractors supported by a 24/7/365 Maintenance Helpdesk, in-house technical expertise, and dedicated estate account managers. The company serves retail, corporate, residential and charity sectors across England, Scotland, Ireland and Wales.
Differentiator
Problem solved
Functional benefit
Companies that use OSS Managed Services
Customer profileSegments4 records
Ideal customer profiles4 records
OSS Managed Services technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature2 records
OSS Managed Services partnerships and signals
Strategic signalPartnerships
Five partnerships are on record, tiered core.
- Altius Vendor AccreditationcoreOSS Group works in partnership with Altius Vendor Accreditation for Health and Safety standards, demonstrating commitment to maintaining high health, safety and welfare standards.
- Safety Schemes in Procurement (SSIP)coreMember of Safety Schemes in Procurement (SSIP), a membership that demonstrates health and safety competency for supply chain companies.
- OSS Electrical Services LtdcorePart of the On-Site Services Group. OSS Electrical Services Ltd offers commercial and industrial electrical services including design, installation, and maintenance of lighting, power, fire alarms, data and electrical testing.
- OSS Commercial Flooring LtdcorePart of the On-Site Services Group. Specialises in supply and installation of floor coverings to commercial properties nationwide, covering floor preparation, vinyl, carpets, rubber and PVC wall cladding.
- On-Site Services (CBM & PM) LtdcorePart of the On-Site Services Group. A primary provider of Reactive Building Maintenance Services in the North West and Project Services Nationwide.
Scale indicators4 records
Recent moves5 records
Expansion highlights4 records
OSS Managed Services competitors and assessment
Company assessmentBroad incumbents
- Serco Group: International public services and facilities management operator with significant UK presence delivering hard FM, soft FM and estate services — competes for enterprise and public sector FM contracts at scale.
- ENGIE UK: UK arm of global energy and facilities services group providing technical FM, building maintenance, compliance and estate services to commercial and public sector clients — broad incumbent in OSS's competitive set.
- Mitie Group: One of the largest UK facilities management and professional services companies, offering hard and soft FM, technical maintenance and estate management to enterprise and public sector clients — broad incumbent that competes for the same corporate and retail contracts.
- EMCOR Group UK: Global facilities services and electrical contractor with UK operations covering mechanical & electrical maintenance, building services and integrated FM — competes for technical FM and multi-site corporate contracts.
- Cushman & Wakefield (Facilities Management): Global commercial real estate services firm offering UK facilities management, property maintenance and workplace services to corporate occupiers — competes for integrated FM mandates at the enterprise level.
- Sodexo UK: Global FM and food services group with extensive UK facilities management operations covering technical maintenance, compliance and estate management — broad incumbent targeting similar corporate and institutional clients.
- JLL (Property and Facilities Management): Global real estate services firm with UK facilities and property management operations, including maintenance, compliance and estate optimisation for corporate occupiers — adjacent competitor at the corporate estate end of OSS's market.
Direct peers
- Atalian Servest: International FM operator with strong UK presence delivering hard FM, soft FM, technical maintenance and helpdesk services to commercial, retail and public sector clients — directly comparable service portfolio and customer segments.
- Bellrock Group: UK mid-market facilities management and property services provider covering hard FM, soft FM, compliance and estate management — directly comparable in customer profile (retail, corporate, public sector) and service mix to OSS Managed Services.
- Robertson Facilities Management: UK-based facilities management division of Robertson Group providing planned/reactive maintenance, compliance and estate management across commercial and public sector estates — comparable mid-market UK FM profile.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
OSS Managed Services social profiles
Digital presenceOSS Managed Services compliance and trust
Trust signalCompliance3 records
OSS Managed Services financial estimates
Financial estimateRevenue estimate
Valuation estimate
OSS Managed Services leadership team
Management profileNumber of profiles
Profiles5 records
OSS Managed Services subsidiaries and ownership
Company hierarchySubsidiaries3 records
OSS Managed Services funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
OSS Managed Services M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about OSS Managed Services
What does OSS Managed Services do?
OSS Managed Services Ltd is a UK facilities management company providing planned preventative maintenance, reactive maintenance, and compliance testing for retail, corporate, residential and charity organisations. Its in-house Technical FM team covers lift and automatic door/shutter maintenance, Legionella management, TM44 inspections and refrigerant gas reporting, while dedicated Estate Managers deliver nationwide estate management with cost-reduction reviews. Operations are supported by a 24/7/365 CAFM helpdesk and a national contractor network.
Is OSS Managed Services a public or private company?
OSS Managed Services is a private company. It is classified as corporate owned and is currently operating.
When was OSS Managed Services founded?
OSS Managed Services was founded in 1985. It employs 1 to 10 people.
Where is OSS Managed Services based?
OSS Managed Services is headquartered in Syston, United Kingdom, in the Europe region.
How does OSS Managed Services make money?
Three revenue lines are on record. Facilities Management Services are the primary driver. The others are technical FM Services and estate Management.
Who are OSS Managed Services's main competitors?
Broad incumbents on record are Serco Group, ENGIE UK, Mitie Group, EMCOR Group UK, Cushman & Wakefield (Facilities Management), Sodexo UK and JLL (Property and Facilities Management). Direct peers are Atalian Servest, Bellrock Group and Robertson Facilities Management.
Does OSS Managed Services have an API?
No public API is recorded for OSS Managed Services.
What industry is OSS Managed Services in?
OSS Managed Services's product category is Facilities Management Services. Its primary akta.pro industry code is IMAIAAAA, Hard FM (Technical Facilities Management: MEP/HVAC/Plumbing/Electrical), with a secondary code of IMAIALAG, Facilities Helpdesk & Service Request Management (FM Call Center/Dispatch). Its NAICS code is 561210 and its SIC code is 8744.