What OpenCloud does

OpenCloud is a UK-based, cloud-native network software provider founded in 2000 in Cambridge, delivering voice core, session border controller, unified communications, and service management solutions to the global telecommunications industry. The company operates today within the Alianza group alongside the Metaswitch brand, whose product portfolio — including Perimeta SBC, MetaSphere CFS and EAS, Clearwater Core IMS, MetaSphere QCall, MaX UC, MetaView NMS, Service IQ, and a Media Gateway offering — is now positioned as part of Alianza's Intelligent Communications Fabric, Alianza Core (self-operated) and Alianza Fusion (hosted/managed) deployment models.

The product set is built around cloud-native network functions deployable as physical, virtual, or containerized workloads on public or private cloud infrastructure. Perimeta is positioned as the first cloud-native SBC proven for large-scale rich communications services; MetaSphere CFS/EAS is the primary platform for fixed-line local and long-distance voice; Clearwater Core IMS provides IP Multimedia Subsystem core functions; QCall implements STIR/SHAKEN for robocall mitigation; and MaX UC and the management products (MetaView NMS, Service IQ) address enterprise UC and operator-side service assurance. Integration with Microsoft Teams via Operator Connect and Direct Routing extends the SBC's reach into the enterprise UC ecosystem.

OpenCloud's revenue model is direct enterprise sales to incumbent and challenger network operators and service providers, with quote-based pricing that is not publicly disclosed. The customer base is concentrated among "some of the world's largest operators," supported by global deployment flexibility across physical, virtual, and cloud environments. No public revenue, headcount trend, or post-2013 funding data is disclosed in the source material, and the company is now part of Alianza's broader cloud communications portfolio.

Name

OpenCloud

Legal name

Metaswitch

Website

https://opencloud.com

Company type

Private

Founded year

2000

Operating status

Acquired

Headcount range

51–100 employees

Short description

OpenCloud delivers cloud-native network software for the telecommunications industry, providing voice core, session border control, unified communications, and robocall-prevention solutions to global network operators as part of the Alianza group.

Ownership category

akta.pro rank

Product category

Telecom Network Software

NAICS

Wired and Wireless Telecommunications (except Satellite) (5171), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518210)

SIC

Services-Computer Programming, Data Processing, Etc. (7370), Communications Services, Nec (4899), Services-Prepackaged Software (7372)

akta.pro primary industry

Telco Cloud & Edge for NaaS (Distributed Cloud, MEC, Edge CNFs) (HDAIAIAE)

akta.pro secondary industries

Private Cloud Platforms (On‑Prem Cloud Stacks) (HDABABAA), Cloud-Native Development (Containers, Kubernetes, Microservices) (BPAEACAD)

Keywords

• Network service layer
• Telecom network software
• Cloud native communications
• Session border controller
• Voice core platform

Headquarters

HQ city

Cambridge

HQ country

United Kingdom

HQ region

Europe

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Distribution channels1 record

Marketing channels2 records

Core offering

OpenCloud delivers network service layer transformation solutions to the telecommunications industry, providing cloud-native network software for voice, data, and unified communications services. Its products are deployed as physical, virtual, and containerized network functions on public or private cloud infrastructures, including session border controllers, IP Multimedia Subsystem cores, call feature servers, robocall prevention tools, and unified communications platforms for service providers.

Product overview

Metaswitch offers a comprehensive portfolio of cloud native communications software products, now integrated as part of Alianza. The product lineup centers on voice core infrastructure products including the Perimeta Session Border Controller (cloud native SBC), MetaSphere Call Feature Server and Element Management System (CFS/EAS) for voice services, Clearwater Core IMS for IP Multimedia Subsystem, and MetaSphere QCall for robocall prevention using STIR/SHAKEN standards. Additional products include MaX UC for unified communications, MetaView NMS for network management, and Service IQ for service intelligence. These products are designed for service providers and operators seeking to power voice, data, and unified communications services, with deployment options spanning physical, virtual, and containerized network functions.

Differentiator

Problem solved

Functional benefit

Products and services

• Perimeta SBC Cloud-native session border controller designed for telecom operators and service providers, proven to deliver the performance required for large-scale rich communications services. Used in network service layer transformation and SIP trunking deployments.
• MetaSphere CFS and EAS Call Feature Server and Enhanced Application Server platform that delivers fixed-line local calling and long distance voice services in modern telephone networks. Targeted at telecom operators modernizing voice core infrastructure.
• Clearwater Core IMS IP Multimedia Subsystem (IMS) core network function providing the foundation for delivering IP-based voice, video, and messaging services. Built for telecom operators and service providers deploying modern IMS-based networks.
• MetaSphere QCall Robocall prevention solution implementing STIR/SHAKEN standards to enable network operators to combat robocalling and telephone scammers and meet regulatory mandates from communications regulators globally.
• MaX UC Unified communications solution for end users that enables enterprise collaboration and integrates with the Microsoft Teams ecosystem. Targeted at operators offering business voice and collaboration services.
• Media Gateway Media gateway solution for handling voice and data traffic in service provider networks, supporting interconnection and traffic transition between legacy TDM and IP-based infrastructure.

Segments1 record

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

One partnership is on record.

• Microsoft TeamscoreTechnology or IntegrationProvides Operator Connect using Perimeta SBC and Microsoft Teams Direct Routing solutions. Enables operators to integrate with Microsoft Teams ecosystem for enterprise communication and collaboration services.

Scale indicators1 record

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• Ericsson: Tier-1 telecom incumbent with end-to-end cloud-native core (Cloud Core) including IMS, SBC, and voice — bundles similar capabilities into larger network transformations.
• Cisco: Sells enterprise and carrier SBC, UC, and collaboration solutions (Webex Calling, Expressway SBC), competing for SIP trunking and operator interconnect business.
• Huawei: Global telecom incumbent with IMS, SBC, and cloud-native core products; a dominant competitor in many international operator accounts.
• Nokia: Major vendor with AnyRAN, Core Networks, and cloud-native IMS/SBC offerings; also a historical investor in the company, and a frequent incumbent competitor in voice core RFPs.
• Oracle Communications: Broad telecom software portfolio including the Acme Packet SBC family, IMS, and session management — a large incumbent alternative for the same operator RFPs.

Direct peers

• Ribbon Communications: Public vendor of SBC, session management, and UC software for carriers and enterprises; competes head-to-head with Perimeta SBC and MetaSphere in voice core and interconnect deals.
• Mavenir: Pure-play provider of cloud-native network software for operators, including IMS, SBC, voice core, and UC — the most direct functional and architectural competitor to the OpenCloud/Metaswitch portfolio.
• Metaswitch: Historically a separate cloud-native communications software vendor (IMS, SBC, UC) now integrated into Alianza; the data appears to conflate this product line with OpenCloud, but the two are direct equivalents in operator voice core.

Emerging players

• Dialogic: Provider of media processing, SBC, and signaling solutions for service providers and enterprises — comparable in SBC and voice infrastructure to Perimeta and MetaSphere.
• Alepo: Smaller vendor of policy, charging, and core network software for operators, including SBC and IMS-adjacent capabilities; overlaps with the voice core and network transformation niches.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/OpenCloudLTD
• Facebookfacebook.com/metaswitch
• LinkedInlinkedin.com/company/metaswitch-networks

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds4 records

Investors6 records

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 OpenCloud