Best Enterprise Networking Companies in England, United Kingdom
The 55 best Enterprise Networking companies in England, United Kingdom in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Dyn.
Ranked: Best Enterprise Networking companies in England
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Dyn DNS and Network Monitoring Solutions | $100M | 122 mo ago | Acqui-Hired | — | 2001 | WordPressMySQLPHP+16 | — | — |
| 2 | Sirius Blockchain infrastructure platform | $29M | 98 mo ago | Funding Raised | Lon Wong Founder & CEO | 2018 | — | — | — |
| 3 | Metaswitch Cloud native communications software empowering service providers to transform networks | $22M | 88 mo ago | Acquired | — | 1981 | HubSpot CMS HubApple iCloud MailMicrosoft 365+14 | — | — |
| 4 | OnApp Cloud software platform for hosting providers | $20M | 91 mo ago | Acqui-Hired | Ditlev Bredahl Co-Founder | 2010 | — | 7 patents Distributed data storage architectures and address-modifying content delivery network technologies. | — |
| 5 | Aria Networks Network Planning and Optimisation Solution Suite | $9M | 152 mo ago | Deadpooled | — | 2005 | — | 58 patents Network traffic engineering, routing optimization, and capacity planning for telecom transport networks. | 1 launch |
| 6 | Zeus Technology Application Delivery and Load balancer solutions | $6M | 256 mo ago | Acquired | — | 1995 | — | 20 patents Network traffic monitoring, load balancing, and request routing for server clusters | — |
| 7 | Zeetta Cloud based network orchestration and management solutions | $6M | 85 mo ago | Series A | Tasos Vlachogiannis Co-Founder | 2015 | — | — | — |
| 8 | Gnodal Network switches for datacenter, high-performance computing and high-frequency trading environments | $2M | 219 mo ago | Deadpooled | Tony Ford Co-Founder & COO | 2007 | — | 72 patents High‑performance, low‑latency Ethernet switching and data‑center networking hardware. | — |
| 9 | LM Technologies Enterprise Wi-Fi connectivity management solutions provider | $2M | 132 mo ago | Seed | Michael Sims Founder & MD | 2004 | WordPressMySQLPHP+29 | — | — |
| 10 | RapidSpike Cloud Based website monitoring solutions | $1M | 69 mo ago | Seed | — | 2015 | WordPress Block EditorCart FunctionalityWordPress+34 | — | 1 launch |
Top 12 Enterprise Networking companies in England
#1
Acqui-Hired · Manchester, England · founded 2001 · 51 employees$100.2Mraised▾
Dyn provides DNS and monitoring solutions to optimize the online infrastructure, domain registration services, web traffic load balancing, up-time monitoring, domain registration, and transactional email delivery. It was launched initially as a open source project and the premium service platform is called DynECT Platform was launched in 2008.
- May 2016Series B$50M
- Sep 2014Series B$12.2M
- Oct 2012Series A$38M
#2
Acquired · London, England · founded 1981 · 833 employees$21.5Mraised▾
Cloud native communications software empowering service providers to transform networks. The company provides high-performance software solutions for voice, data, and unified communications. It offers a full stack of solutions, including edge, core, applications, and management orchestration, designed for deployment in various network environments. The company's cloud native approach enables customers to adopt DevOps for faster service innovation, with microservices that scale elastically and integrate easily into operational support systems. It focuses on providing essential infrastructure, platforms, products, and solutions to help operators increase subscribers and grow revenues. The company's offerings include VoIP softswitches, gateways, IMS core deployments, session border control, robocall blocking, and cloud contact centers. It builds cloud native software on microservices that can be deployed in lightweight container environments. The company's solutions are designed to be hardware independent, container ready, and automation oriented.
- Feb 2019Unattributed$4.1M
- Jun 2015Unattributed$516.6K
- Sep 2014Unattributed$15.3M
- Aug 2014Unattributed$77.8K
#3
Acqui-Hired · London, England · founded 2010 · 130 employees$20Mraised▾
Cloud software platform for hosting providers. The OnApp platform brings together the cloud, dedicated servers, VPS, a global CDN, DNS, storage, load balancers, autoscaling, templates, and other IaaS capabilities in one fully automated control panel. Has more than 800 clients in 93 countries with offices in the US, Europe, and the Asia Pacific, as of September 2018.
- Dec 2018Grant (prize money)$869.6K
- Jun 2017Grant (prize money)$603.4K
- Jan 2017Grant (prize money)$642.1K
- Jul 2015Grant (prize money)$648.5K
#4
Funding Raised · Hadfield, England · founded 2018$28.7Mraised▾
Blockchain infrastructure platform. It offers a blockchain infrastructure platform that integrates with built-in service layers that enable businesses, infrastructures, and applications to connect to the blockchain. Its on-chain features include streaming text, video, and voice data, events management, workflow management, database management, and more.
- Apr 2018ICO$28.7M
#5
Series A · Bristol, England · founded 2015 · 27 employees$5.7Mraised▾
Cloud based network orchestration and management solutions. It provides a core product of the networking operating system NetOS which offers USB like connectivity of network devices to the virtual network. The NetOS has an open source SDN controller which can control various network applications such as virtual PCE, infrastructure slicing, monitoring, and more.
- Jun 2019Grant (prize money)$498.3K
- Jul 2017Series A$2.4M
- Jun 2017Grant (prize money)$668.6K
- Apr 2017Grant (prize money)—
#6
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
#7
Acquired · Cambridge, England · founded 1995 · 56 employees$5.7Mraised▾
Zeus is a provider of traffic management and load balancing solutions. In 1995 Zeus WEb Server are well known as the highest performance web servers. In 2004 they started manufacturing load balancer solutions for managing application traffic, inspecting and routing the application. The product was marketed by Riverbed Technology after its acquistion in 2011 which later sold it to Brocade Communications Systems.
- Mar 2005Series A$5.7M
- 2004Unattributed—
#8
Seed · Leeds, England · founded 2015 · 20 employees$1.3Mraised▾
Rapidspike monitors sites for uptime, performance, usability and stability from various global locations via our network monitors. Sends instant SMS or email notifications when an issue occurs. Measures user response time and collects accurate performance metrics in real time. Monitors multi-step user journeys through the website. Provides a self service, load testing platform that enables real-world performance testing.
- Sep 2020Seed$1.3M
#9
Seed · London, England · founded 2004 · 10 employees$1.8Mraised▾
LM Technologies is an enterprise Wi-Fi connectivity management solutions provider. Provides designs, develops, and manufactures Wireless Modules and Adapters, enabling the Internet of Things. The product line covers both Bluetooth and Wifi based. Also provides HCI-based Modules and USB Adapters supported by Realtek and Cypress chipsets. Serves industries including EPOS, medical, industrial automation, weighing, building, and home automation.
- Jul 2015Seed$1.3M
- Nov 2008Seed$469.3K
#10
Deadpooled · Bristol, England · founded 2007 · 7 employees$2.2Mraised▾
Network switches for datacenter, high-performance computing and high-frequency trading environments
#11
Seed · Totnes, England · founded 2021 · 1 employees$50Kraised▾
Provider of AI development and enterprise network analytics platform. It offers an AI and Ml interfaced network analytics platform that manages operations of internet protocols and network utilization, tracks web traffic and measures performance.
- Mar 2023Seed$50K
#12
Acquired · Lancaster, England · founded 2012—raised▾
Online platform providing SD-WAN based solution. It offers security, support contracts, unified communications & collaboration, and WAN & LAN solutions.
- May 2025PE—
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Enterprise Networking coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
Common questions
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