Best OSS & BSS Companies in United Kingdom
The 95 best OSS & BSS companies in United Kingdom in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: CloudSense.
Ranked by disclosed equity funding and recent momentum, this directory maps the OSS & BSS companies operating across the United Kingdom that are actually worth your attention. Ninety-five firms are tracked here, with $275M in total disclosed funding and, notably, zero unicorns. CloudSense towers over the field at $94M raised, a figure that dwarfs every other entrant and tells you something real about where institutional capital concentrated. IQGeo sits at $7M. After that, the numbers compress fast, with Ranplan Wireless, Ikue, and Cardinality.io each reporting $3M. So the funding distribution isn't flat; it's a spike followed by a long tail.
Cloud infrastructure is the theme pulling the most oxygen right now, and coverage across the sector is genuinely rising. Backers like Advent International and Lumine Group aren't quiet names. I'd point you toward recent practitioner analysis on OSS/BSS system fixes if you want a ground-level read on where operational gaps persist. What that analysis reinforces is that earned revenue, not funding headlines, separates durable players from noise. The United Kingdom OSS & BSS cohort is building real infrastructure businesses. The funding data above is where to start reading them.
Ranked: Best OSS & BSS companies in United Kingdom
| # | Company | Disclosed funding | Last round | Employees | Founded | Founder | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | CloudSense CPQ & order management solutions for businesses | $94M | 82 mo ago | 22 22 → 53 (+141%) | 2009 | — | Cart FunctionalityHubSpot CMS HubSentry+17 | — | — |
| 2 | Volubill Control and charging software | $39M | 224 mo ago | — | 2001 | John Aalbers CEO | — | — | — |
| 3 | Apertio Subscriber analytics solution for mobile network management | $30M | 244 mo ago | 116 | 2002 | — | — | 57 patents Optimizing access, control, and replication in distributed network data repositories. | — |
| 4 | Tribold Product management software for service providers | $28M | 209 mo ago | 28 | 2003 | Simon Muderack Founder & CEO | — | — | — |
| 5 | Jacobs Rimell Develops service fulfillment solutions for the broadband cable industry | $10M | 289 mo ago | — | 1997 | David Jacobs CTO and Co-Founder | — | 21 patents Automated network service provisioning, configuration management, and state recovery systems. | — |
| 6 | Aria Networks Network Planning and Optimisation Solution Suite | $9M | 151 mo ago | 18 | 2005 | — | — | 58 patents Network traffic engineering, routing optimization, and capacity planning for telecom transport networks. | 1 launch |
| 7 | Cerillion Technologies Provider of composable BSS/OSS software solutions for telecom operators | $9M | 82 mo ago | 252 252 → 399 (+58%) | 1999 | Louis Hall CEO | SalesforceBootstrapCloudflare+16 | — | 1 award |
| 8 | Salviol Big data and cloud-based fraud detection, prevention, and management | $7M | 128 mo ago | 21 | 2009 | Robert Jancigaj CEO | — | — | — |
| 9 | IQGeo Provider of enterprise software solutions for digital transformation | $7M | 66 mo ago | 102 | 2002 | Richard Petti CEO | HubSpot CMS HubApple iCloud MailMicrosoft 365+18 | — | 1 launch |
| 10 | Mobinets OSS transformation solutions for Telecom Networks | $7M | 126 mo ago | 76 | 2003 | — | — | — | — |
| 11 | CopperEye Labs Data retention solutions | $6M | 224 mo ago | 11 | 2000 | Duncan Pauly Co-Founder | — | 23 patents Database indexing and organization methods for efficient data retrieval and storage | — |
| 12 | RootMetrics Mobile network analytics provider | $6M | 179 mo ago | 50 | 2008 | — | Node.jsLeafletD3+27 | — | — |
| 13 | GlobalReach Tech Wireless network management for service providers | $5M | 100 mo ago | 26 26 → 64 (+146%) | 2012 | — | WordPressApple iCloud MailGoogle Workspace+29 | — | — |
| 14 | Cardinality.io Cloud based platform offering data integration solutions | $3M | 62 mo ago | 48 | 2015 | Martin Ganski Co-Founder | — | — | — |
| 15 | Ranplan Wireless Wireless network design and planning solution provider | $3M | 39 mo ago | 33 33 → 54 (+64%) | 2006 | Alastair Williamson CEO | — | 42 patents Indoor wireless propagation modeling and performance prediction for building network planning | 2 internships |
| 16 | Ikue Developer of a customer data platform designed for telecommunications companies | $3M | 43 mo ago | 11 | 2019 | Simon Esland Co-Founder and Chief Marketing Officer | — | — | — |
| 17 | Epitiro Wi-fi experience monitoring solutions provider | $2M | 216 mo ago | 16 | 2000 | — | WordPressMySQLPHP+32 | 3 patents Software and network performance testing tools for apps and broadband connections | — |
| 18 | Ciqual Software solutions for measuring Quality of Experience (QoE) of customers | $2M | 184 mo ago | 8 | 2007 | Tom Walls CEO | — | 5 patents Monitoring and assessing network link quality in telecommunications systems | — |
| 19 | VoipSwitch VoiP solutions for resellers | $1M | 177 mo ago | 52 | 2001 | — | WordPress Block EditorwpBakeryWordPress+25 | — | — |
| 20 | Net AI Cloud & AI-based platform providing network management solutions | $1M | 55 mo ago | 3 | 2020 | Mark Chapman Co-Founder | Node.jsChakra UIReact+14 | — | — |
| 21 | Teragence Provider of cloud-based network analytics solutions | $591K | 69 mo ago | 1 | 2015 | Christian Rouffaert Co-Founder & CEO | WordPressMySQLPHP+28 | — | — |
| 22 | Voiceserve Provider of a VoIP-based telephony platform offering communication solutions for businesses and individuals | $498K | 177 mo ago | — | 2003 | Michael Bibelman Co-Founder & CEO | — | — | — |
| 23 | Bartr Decentralized operating system offering telecoms network solutions | $496K | 79 mo ago | — | 2017 | Paul Henderson Founder & CEO | — | — | — |
| 24 | We Are CORTEX Provider of enterprise-grade hyperautomation platform telecommunication operations | $199K | 60 mo ago | 50 50 → 28 (-44%) | 1999 | Mike Taylor CEO | WordPress Block EditorElementorWordPress+29 | — | — |
| 25 | Billmonitor Telecom bill analysis and expense management services | $188K | 68 mo ago | 9 | 2009 | — | — | — | — |
Top 12 OSS & BSS companies in United Kingdom
#1
Funding Raised · Papworth Everard, England · founded 2006 · 33 employees$3Mraised▾
Ranplan Wireless provides a solution for indoor and hybrid indoor/outdoor wireless network planning, design, and optimization, using advanced 3D building modeling and radio propagation simulation. Its solution has application in femto/small cells, DAS, and Wi-Fi networks, and also integrated with macro cell networks. Its customers include EE, Telenor, Omega Wireless, Ooredoo, etc.
- Mar 2023Grant (prize money)$313.3K
- Sep 2020Grant (prize money)$253.9K
- Feb 2020Grant (prize money)$249.6K
- Dec 2019Grant (prize money)$698.5K
#2
Seed · London, England · founded 2019 · 11 employees$2.6Mraised▾
Developer of a customer data platform designed for telecommunications companies. The platform helps telecommunications companies deliver customer experiences and drive growth. It streamlines data integration. The platform offers insights on innovations shaping telecommunications.
- Nov 2022Seed$2.6M
#3
Series C · London, England · founded 2009 · 22 employees$94.4Mraised▾
CloudSense provides CPQ & order management solutions for businesses. Its platform features digital commerce, product catalog management, field sales, subscription management, pricing management, contract management, order management, and more. For the Advertising industry, its features include Ad campaign fulfillment tracking, Ad sales management, and Ad server integration. Its major clients are Momentum Energy, Newsday, Proximus, and Liquid Telecom. It serves multiple sectors including communication, energy & utilities, transport & logistics, higher education, and others.
- Aug 2019Grant (prize money)$55.4K
- Jun 2019Conventional Debt—
- Nov 2017Series C$77M
- Feb 2016Series B$3.6M
#4
Acquired · Guildford, England · founded 2015 · 48 employees$3.4Mraised▾
Cloud based platform offering data integration solutions. It provides a business intelligence platform that uses artificial intelligence technology for offering solutions such as operational intelligence, customer data management, customer experience management, data movement, etc.
- Apr 2021Series A$3.4M
- May 2015Series A$30M
#5
Acquired · Cambridge, England · founded 2002 · 102 employees$7.1Mraised▾
Provider of enterprise software solutions for digital transformation. It provides solutions for digital transformation and network operations across the telco, cable, and utility industries. It offers a Workflow Manager that helps users to control construction and maintenance activities from end-to-end, keeping teams informed of project, trouble, and maintenance ticket status.
- Dec 2020Post IPO$7.1M
#6
Seed · Edinburgh, Scotland · founded 2020 · 3 employees$1Mraised▾
Cloud & AI-based platform providing network management solutions. The platform offers real-time network analytics solutions to manage and monetize 4G or 5G mobile networks. The platform also offers solutions such as stream analytics, real-time resource optimization, and business intelligence.
- Nov 2021Seed$1M
#7
Acqui-Hired · London, England · founded 2001$39Mraised▾
VoluBill provides policy management, policy enforcement and charging solutions to mobile, satellite and fixed broadband operators. Its software, service controller and charging platform enables policy enforcement and real-time, pre-pay, post-pay and now-pay charging and control of data services.
- Sep 2007Series D$14.8M
- Dec 2004Series C$14.4M
- Nov 2001Series A$9.8M
#8
Acqui-Hired · London, England · founded 2003 · 28 employees$28.1Mraised▾
Tribold is the provider of enterprise product management (EPM) software specifically developed for Communication Service Providers (CSPs). Its products include TRIBOLD 3.0, an integrated suite of enterprise product management applications that empowers centralized product catalogs. Tribold Limited was founded in 2003 and is based in London, the United Kingdom with additional offices in Seattle, Washington; London, the United Kingdom; Denver, Colorado; Atlanta, Georgia; and Melbourne, Australia.
- Jan 2009Series C$11M
- Mar 2007Series B$15M
- Jul 2005Series A$2.1M
#9
Public · London, England · founded 1999 · 252 employees$9Mraised▾
Provider of composable BSS/OSS software solutions for telecom operators. It delivers modular and end-to-end systems for billing, customer management, service operations, and digital transformation. Its platform supports B2C, B2B, wholesale, and multi-country telecom operations with cloud-neutral deployment and AI-powered capabilities.
- Aug 2019Post IPO—
- Apr 2001Series A$9M
#10
Acquired · Bristol, England · founded 2002 · 116 employees$30Mraised▾
Apertio is a provider of single, open, subscriber-centric software solutions for mobile, fixed, and converged telecom service providers. This subscriber-centric architecture reduces deployment time, cost, complexity and lays foundation for convergence and IMS in networks. Their client base includes Orange, T-Mobile, O2, Vodafone and AIS and had offices in Berlin, Chicago, Bangkok, Beijing and Kuala Lumpur
- Feb 2006Series B$30M
#11
Deadpooled · Bath, England · founded 2005 · 18 employees$9.1Mraised▾
Aria Networks is a developer of artificial-intelligence planning and optimisation software for the telecommunications industry. Aria’s software augments a telco’s operational support systems (OSS) with highly scalable and efficient analysis of network and service data. The principal applications addressed are in the areas of network service optimisation and short-to-long term strategic planning of network architecture and capacity. The company develops technology capable of analytical processes that exceed the abilities of either manual analysis or existing ‘linear’ software solution. This is achieved using a number of AI techniques, including neural networks and genetic algorithms.
- Nov 2013Series A$4M
- Oct 2012Series A$1.1M
- May 2008Series A$4M
#12
Series A · Chiswick, England · founded 2003 · 76 employees$7Mraised▾
OSS transformation solutions for Telecom Networks. The platform provides OSS transformation solutions to automate, consolidate and streamline telecom network operations. The company design, build, operate, and manage mobile networks. Their portfolio includes a Performance manager - A real-life view of traffic flowing across the network. Planning and optimization manager - Network Analytics to manage the traffic flow. Inventory and asset manager - To track inventory and assets across the network. Workflow manager - for effective communication across various teams. Fault Manager - A network management solution to detect faults and Finance Manager - To be mindful about CAPEX and OPEX investments.
- Dec 2015Series A$2M
- Oct 2014Series A$3M
- Dec 2011Series A$2M
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of OSS & BSS coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
Common questions
Riya reads income statements for fun. She covers the real money in a sector — revenue, growth, who actually earns — and never met a vague claim she didn't want a number for.