List of Mitel Phone System Customers
Kanata, K2K 3K1, ON,
Canada
Since 2010, our global team of researchers has been studying Mitel Phone System customers around the world, aggregating massive amounts of data points that form the basis of our forecast assumptions and perhaps the rise and fall of certain vendors and their products on a quarterly basis.
Each quarter our research team identifies companies that have purchased Mitel Phone System for PBX, VoiP and Phone Systems from public (Press Releases, Customer References, Testimonials, Case Studies and Success Stories) and proprietary sources, including the customer size, industry, location, implementation status, partner involvement, LOB Key Stakeholders and related IT decision-makers contact details.
Companies using Mitel Phone System for PBX, VoiP and Phone Systems include: British Telecom, a United Kingdom based Communications organisation with 85300 employees and revenues of $26.83 billion, Quilter, a United Kingdom based Banking and Financial Services organisation with 3005 employees and revenues of $5.10 billion, Carnival Corporation UK, a United Kingdom based Leisure and Hospitality organisation with 11000 employees and revenues of $1.61 billion, Hobson Prior International, a United Kingdom based Banking and Financial Services organisation with 2630 employees and revenues of $1.35 billion, North East Ambulance Service NHS Trust, a United Kingdom based Healthcare organisation with 6614 employees and revenues of $1.00 billion and many others.
Contact us if you need a completed and verified list of companies using Mitel Phone System, including the breakdown by industry (21 Verticals), Geography (Region, Country, State, City), Company Size (Revenue, Employees, Asset) and related IT Decision Makers, Key Stakeholders, business and technology executives responsible for the software purchases.
The Mitel Phone System customer wins are being incorporated in our Enterprise Applications Buyer Insight and Technographics Customer Database which has over 100 data fields that detail company usage of software systems and their digital transformation initiatives. Apps Run The World wants to become your No. 1 technographic data source!
Apply Filters For Customers
| Logo | Customer | Industry | Empl. | Revenue | Country | Vendor | Application | Category | When | SI | Insight |
|---|---|---|---|---|---|---|---|---|---|---|---|
 |
British Telecom | Communications | 85300 | $26.8B | United Kingdom | Mitel | Mitel Phone System | PBX, VoiP and Phone Systems | 2018 | n/a |
In 2018 British Telecom implemented Mitel Phone System to strengthen its PBX, VoiP and Phone Systems estate and to support enterprise telephony operations. British Telecom Mitel Phone System PBX, VoiP and Phone Systems was positioned to manage call control, SIP signaling, and core voice services across business switch and enterprise voice functions.
The deployment included Mitel 3300 platform configurations documented in technical staffing records, and configurations aligned with Session Initiation Protocol based SIP trunking. Functional capabilities emphasized IP PBX call control, handset provisioning, and SBC based session security, consistent with roles listing Session Border Controller and IP PBX expertise.
Integrations referenced in operational notes included interconnects with BroadWorks and Centrex style carrier interfaces, and the environment operated as a mix of on premise and hosted Mitel instances. Operational coverage tied to service operations and network engineering teams included second line and third line support tiers, reflecting recorded Business Switch 2nd line and Mitel 3rd line responsibilities.
Governance and support were organized around multi tier technical ownership, with third line VoIP technical specialists managing Mitel platform configuration, SIP and SBC troubleshooting, and ongoing voice operations. Change controls and configuration management practices were implied by the sustained specialist roles responsible for Mitel Phone System platform support.
|
 |
Carnival Corporation UK | Leisure and Hospitality | 11000 | $1.6B | United Kingdom | Mitel | Mitel Phone System | PBX, VoiP and Phone Systems | 2018 | n/a |
In 2018 Carnival Corporation UK deployed Mitel Phone System for PBX, VoiP and Phone Systems to standardize shipboard and shore voice services. The Mitel Phone System was provisioned as the primary telecom application for core telephony across targeted UK vessels and shore administration, addressing PBX and VoIP switching needs for onboard communications.
Implementation focused on PBX functional modules common to the category, including core call routing and switching, SIP trunking and session management, handset provisioning and directory services, voicemail and unified messaging, conferencing and operator services. Configuration work encompassed voice provisioning templates for shipboard handsets and consolidated administrative tools for provisioning, fault ticketing and firmware management under a single telecom administration model.
Operational coverage included support and administration for the vessels Ventura, Arcadia, Britannia and Aurora, with onboard Mitel PBX instances managed alongside existing Siemens PBX equipment where present. Governance established centralized telecoms administration in the UK, standardized provisioning and incident workflows for fleet operations, and defined ship to shore operational handoffs for maintenance and support.
|
 |
Day Group | Construction and Real Estate | 529 | $62M | United Kingdom | Mitel | Mitel Phone System | PBX, VoiP and Phone Systems | 2017 | n/a |
In 2017, Day Group implemented the Mitel Phone System. The Mitel Phone System is categorized as PBX, VoiP and Phone Systems and was provisioned to support Day Group's corporate telephony across its construction and real estate operations, with administration and operational ownership held by the internal IT team led by the IT Support Lead.
Deployment and configuration centered on core PBX capabilities including call routing, extension provisioning, voicemail management, and user provisioning tied to Active Directory for centralized identity and access control. Project activities documented in-house show requirements analysis, detailed technical specifications, and a supervised testing schedule, with explicit oversight of data migration tasks during the rollout.
Integrations and operational coordination were executed with Microsoft Office 365 and Skype for Business to align telephony identities and presence, and network-level interoperability was managed alongside existing Cisco routing and switching and Citrix desktop infrastructure. Governance covered change control, user training, technical documentation, and day-to-day 3rd Line Support responsibilities, with the IT Support Lead translating stakeholder requirements into technical briefs and maintaining system documentation and support processes.
|
 |
|
Healthcare | 1728 | $115M | United Kingdom | Mitel | Mitel Phone System | PBX, VoiP and Phone Systems | 2012 | n/a |
|
|
|
|
Utilities | 362 | $330M | United Kingdom | Mitel | Mitel Phone System | PBX, VoiP and Phone Systems | 2019 | n/a |
|
|
|
|
Banking and Financial Services | 2630 | $1.3B | United Kingdom | Mitel | Mitel Phone System | PBX, VoiP and Phone Systems | 2019 | n/a |
|
|
|
|
Professional Services | 989 | $47M | United Kingdom | Mitel | Mitel Phone System | PBX, VoiP and Phone Systems | 2015 | n/a |
|
|
|
|
Healthcare | 6614 | $1.0B | United Kingdom | Mitel | Mitel Phone System | PBX, VoiP and Phone Systems | 2009 | Wavenet |
|
|
|
|
Banking and Financial Services | 3005 | $5.1B | United Kingdom | Mitel | Mitel Phone System | PBX, VoiP and Phone Systems | 2019 | n/a |
|
Buyer Intent: Companies Evaluating Mitel Phone System
- University of North Florida, a United States based Education organization with 1160 Employees
- Global Technical Systems, a United States based Aerospace and Defense company with 120 Employees
- HostedBizz, a Canada based Professional Services organization with 30 Employees
Discover Software Buyers actively Evaluating Enterprise Applications
| Logo | Company | Industry | Employees | Revenue | Country | Evaluated | ||
|---|---|---|---|---|---|---|---|---|
| No data found | ||||||||