What Windsor Telecom does

Windsor Telecom Ltd is a privately held UK business telecommunications and connectivity provider headquartered in Camberley, Surrey, founded in 2004 and operating for over 20 years. The company delivers a unified communications portfolio centred on cloud-based phone systems (VoIP/hosted PBX via the Xelion platform), Microsoft Teams Phone System Direct Routing, and Contact Centre as a Service (CCaaS), complemented by business mobile plans carried over Vodafone and O2 networks, a connectivity stack spanning business broadband (FTTC/FTTP/G.Fast), leased lines (Fibre Ethernet, EoFTTC, EFM, Ethernet Flex), SD-WAN, and mobile internet, plus managed IT services covering Microsoft 365, Teams, networking, and IT security.

The company generates revenue primarily through recurring monthly subscriptions on both voice/UCaaS and connectivity products, with quote-based pricing on most enterprise deals and a published £10/month Enhanced Care broadband support tier. Windsor serves UK businesses across all sizes, with named customers spanning emergency services (North East Ambulance Service), charities (Age UK, Cruse, Plan International), legal firms (BP Collins, Hunters), financial services (Buckinghamshire Building Society), retail (Crew Clothing), and other verticals. It claims direct connections to over 300 business sites and applications including Microsoft, AWS, Google, and Salesforce, an NPS of 62, and a channel partner/reseller programme supported by a white-label portal.

The go-to-market combines dedicated-account-manager-led direct sales for enterprise and mid-market accounts with a partner/reseller channel for broader reach. Growth has been executed primarily through acquisitions — Yoozoom (August 2024, establishing a Northern England Hub), Connexus, and Reefstream — financed in partnership with ThinCats and supported by a recently assembled executive team (CEO Pete Tomlinson, CFO David White, COO Anthony Lacey). UK Government G-Cloud 12 and 13 certifications open public-sector procurement channels. Geographic footprint remains UK-only with no disclosed international operations.

Name

Windsor Telecom

Legal name

Windsor Telecom Ltd

Website

https://windsor-telecom.co.uk

Company type

Private

Founded year

2004

Operating status

Operating

Headcount range

11–50 employees

Short description

Windsor Telecom is a privately held UK business telecommunications provider delivering cloud telephony, UCaaS, business mobile, broadband, and managed IT services to SMB and enterprise customers across the United Kingdom.

Ownership category

akta.pro rank

Product category

Business Telecommunications Services

NAICS

Telecommunications Resellers (517121), All Other Telecommunications (5178), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518)

SIC

Telephone Communications (No Radiotelephone) (4813), Services-Telephone Interconnect Systems (7385), Services-Computer Programming, Data Processing, Etc. (7370)

akta.pro primary industry

Cloud PBX & Hosted Telephony (HDAIAHAB)

akta.pro secondary industries

VoIP Access & ITSP Services (HDAIAHAD), Cloud Connectivity & Interconnect (Cloud On-Ramps, IX, Cross-Connects) (HDAIAFAF)

Keywords

• Business telephony services
• Cloud communications solutions
• Unified communications
• Business broadband connectivity
• Managed IT services

Headquarters

HQ city

Camberley

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Infrastructure, Operations, Marketing or Sales

Revenue model

1. Telecommunications Services: Recurring subscription revenue from VoIP phone systems, cloud telephony, SIP trunking, Microsoft Teams calling, and unified communications services. Charged on a per-user or per-service basis with monthly or annual billing.
2. Business Connectivity: Revenue from business broadband, leased lines (Fibre Ethernet, EoFTTC, EFM), SD-WAN, and mobile internet services. Charged on subscription basis with various bandwidth tiers.
3. Business Mobile Plans: Mobile connectivity services operating on Vodafone and O2 business networks with unlimited texts, calls and data. Recurring subscription revenue from business mobile plans.
4. IT Services: Managed IT services including Microsoft 365 for Business, networking, IT support, and IT security solutions.
5. Enhanced Care Support: Optional premium support package for business broadband at £10 per month with prioritised fault resolution and 30-day contract terms.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

Windsor Telecom sells cloud-based phone systems (VoIP/SIP, hosted PBX, unified communications via the Xelion platform), Microsoft Teams Phone System integration, Contact Centre (CCaaS), business mobile plans on Vodafone and O2 networks, and business connectivity including fibre broadband, leased lines, SD-WAN, and mobile internet. It also provides managed IT services (Microsoft 365, Teams management, networking, IT support, IT security) and an Enhanced Care premium support package for business broadband.

Product overview

Windsor Telecom is a UK telecommunications provider offering a unified communications and connectivity portfolio. The core offering centres on cloud-based phone systems (VoIP/Hosting PBX), Unified Communications as a Service (UCaaS via Xelion platform), Contact Centre solutions (CCaaS), and Microsoft Teams Phone integration via Direct Routing. These are complemented by Business Mobile services on Vodafone and O2 networks, Business Broadband (FTTC/FTTP/G.Fast), Leased Lines (Fibre Ethernet/Ethernet Flex/EoFTTC/EFM), SD-WAN, and Mobile Internet. The product architecture combines a central cloud telephony platform with add-on features including call recording, Vision Call Statistics analytics, Call Manager Plus, and SIP Trunking. IT Services cover Microsoft 365, Teams management, networking, and security. The company also offers enhanced support (Enhanced Care) and memorable business number services. Recent growth includes acquisitions of Yoozoom and Connexus, extending their regional presence.

Differentiator

Problem solved

Functional benefit

Products and services

• VoIP Phone Systems Cloud-based VoIP phone systems for UK businesses, supporting call forwarding, auto-attendant, mobile integration, and 24/7 support with automatic failovers.
• Unified Communications Integrated communications platform combining voice, video, messaging, and collaboration tools across multiple devices and locations for UK businesses.
• Microsoft Teams Phone System Direct Routing integration enabling Microsoft Teams users to make and receive business calls through Windsor Telecom's telephony platform.
• Contact Centre (CCaaS) Cloud-based contact centre solution for managing customer interactions across multiple channels with call queuing, routing, and analytics for UK businesses.
• Business Mobile Plans Business mobile services on Vodafone and O2 networks with unlimited texts, unlimited calls, and unlimited data, including secure 4G connectivity for UK organisations.
• Business Broadband Fibre and ADSL business internet services including FTTC (up to 76Mbps download, 20Mbps upload), FTTP (up to 1Gbps), and G.fast (160-330Mbps) options with unlimited data and 24/7 support.
• Leased Lines (Dedicated Internet Access) Dedicated Ethernet internet access including Fibre Ethernet (up to 1Gbps synchronous), Ethernet Flex (200Mbps with bursts to 1Gbps), Ethernet over FTTC (up to 20Mbps), and Ethernet First Mile (up to 20Mbps symmetrical) with guaranteed SLAs and up to 10Gb download speeds.
• SD-WAN Software-defined wide area networking enabling multi-site connectivity with flexible bandwidth management and application prioritisation for UK businesses.
• Mobile Internet Mobile connectivity solution for temporary sites, remote areas, or as failover to fixed line services, with 4G coverage and connections to over 300 business sites and applications.
• Business Phone Numbers Memorable business numbers including 0800 freephone, 0330, 0300, 01/02 geographic numbers, and international numbers for UK organisations.
• IT Services Managed IT services including Microsoft 365 for Business, Microsoft Teams management, networking, IT support, and IT security solutions for UK businesses.
• Enhanced Care Priority support add-on for business broadband providing prioritised fault fixes (20-hour target fix time), 24/7 fault progression, and dedicated engineering support at £10 per month with 30-day contract.
• Gigabit Internet Gigabit-capable internet connectivity delivered through Windsor Telecom's FTTP and leased line services for UK businesses needing high-bandwidth access.

Quantifiable outcome

• NPS of 62 - customers happy to recommend Windsor Telecom
• +4 more outcomes

Named customers15 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

Feature4 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• YoozoomcoreStrategic or Co-development Partner · 21 August 2024Acquisition of Leeds-based Yoozoom to strengthen Windsor Telecom's presence across the North of England, forming a new expanded regional Hub in the North.
• ConnexuscoreStrategic or Co-development PartnerAcquisition of Connexus as part of Windsor Telecom's growth strategy, announced in partnership with ThinCats.
• ReefstreamminorStrategic or Co-development PartnerReefstream became part of Windsor Telecom Ltd as part of acquisition/expansion strategy.
• MicrosoftcoreTechnology or IntegrationTechnology integration partner for Microsoft Teams Phone System, Microsoft 365 for Business, and Teams Direct Routing. Windsor Telecom provides cloud telephony integration with Microsoft Teams.
• CityFibrecoreTechnology or IntegrationCityFibre is a connectivity infrastructure partner. Windsor Telecom has been crowned City Champion by CityFibre for their work in delivering full fibre connectivity solutions.
• VodafonecoreTechnology or IntegrationMobile network provider for business mobile plans, providing 4G connectivity with unlimited texts, calls and data on business network.
• O2 (Telefonica)coreTechnology or IntegrationMobile network provider for business mobile plans, providing 4G connectivity with unlimited texts, calls and data on business network.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Vonage: Vonage (an Ericsson company) provides cloud communications, SIP trunking, and UCaaS APIs, competing with Windsor's hosted PBX and SIP trunking products in the UK and global markets.
• 8x8: 8x8 is a global cloud communications provider offering UCaaS, CCaaS, and Teams integration, competing with Windsor in mid-market and enterprise voice and contact centre deals.
• RingCentral: RingCentral is a global UCaaS and CCaaS platform that increasingly targets UK mid-market and enterprise customers, overlapping with Windsor's hosted telephony and contact centre offerings.
• Daisy Communications: Daisy is a large UK business telecom reseller and managed services provider offering cloud telephony, connectivity, mobile, and IT services to SMB and mid-market customers, making it one of Windsor's closest direct comparables.
• Gamma Communications: Gamma is a leading UK-based provider of UCaaS, SIP trunking, hosted PBX, and connectivity services to businesses, directly competing with Windsor Telecom across nearly every product line including voice, broadband, and mobile.

Broad incumbents

• Vodafone Business UK: Vodafone UK is a tier-1 mobile and fixed network operator serving UK businesses, both as a wholesale supplier to Windsor's mobile plans and as a direct competitor in enterprise mobility and UCaaS.
• TalkTalk Business: TalkTalk Business provides wholesale and direct business connectivity, voice, and cloud services across the UK, competing with Windsor in the SMB and channel segments.
• Virgin Media Business / O2 Business: Virgin Media O2 Business is a major UK provider of broadband, mobile, voice, and unified communications to businesses, overlapping heavily with Windsor's connectivity and mobile resale offering.
• BT Business: BT is the incumbent UK fixed-line operator and offers business broadband, voice, mobile, and UCaaS, competing with Windsor across the full SMB and enterprise stack with owned network infrastructure.

Others

• CityFibre: CityFibre is a UK full-fibre infrastructure provider and a strategic connectivity partner to Windsor Telecom (City Champion 2022), representing both a wholesale supplier and an adjacent infrastructure peer in the UK fibre rollout.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/windsor-telecom
• Xx.com/windsortelecom

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

Subsidiaries3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Windsor Telecom