Networking

Just Firewalls

Just Firewalls supplies, configures and manages enterprise-grade firewalls from vendors including Cisco, WatchGuard, SonicWall and Fortinet for UK businesses. The company provides 24/7 monitoring, patching and management of firewall estates, offers expert advice and remote workforce security solutions, and has deployed over 2,500 firewalls since 2007 from its UK base in Bolton.

KM Group Ltd

Looking to upgrade your existing structured data cabling network or build a new one, we can provide super-fast Cat5e, data cabling, fibre optic & Wi-Fi cabling

KODERGARTEN

Kodergarten designs and builds practical software for authorities, operators, and communities to deliver better outcomes across Wales and the UK. Their platforms include home to school transport, public transport data, and place analytics, each developed with users to solve real public sector problems. Based in Wales, they work UK-wide with a focus on public benefit, data protection, and accessibility.

Kedhlow

Kedhlow supplies ICT and communications services including structured cabling, hardware and software procurement, and business telephone systems. The company offers 24/7 ICT support and handles relocation of mission-critical IT infrastructure, alongside IT asset disposal in line with WEEE Directives. Kedhlow works with SMEs, new offices and start-ups, and holds accreditations from several technology vendors. The company is registered in Sutton, Surrey, with additional offices in Gibraltar and Malta.

Keith Thomas IT

Keysight Technologies

Keysight Technologies sells software-centric design, emulation and test products for electronics engineers. Its hardware range covers oscilloscopes, spectrum and signal analysers, signal sources, network analysers, wireless emulators, digital multimeters and DC power supplies, alongside design and test software. Recent products named on its site include the Pro XA6 Signal Analyzer, which analyses signals with up to 8 GHz of bandwidth, and the PNT Xe GNSS simulator. Keysight works with teams building AI data centres, 6G, automotive and quantum systems, and runs teaching labs for IC design, wafer test and photonic IC measurement.

Kingfisher Telecom Ltd

Kingfisher Telecom provides business connectivity including full fibre broadband, cloud-based VoIP telephony and dedicated leased lines. Packages run from 80Mb to 1Gb, serving small and medium-sized businesses and the public sector. It also offers guest WiFi and mobile SIM options, and operates a partner programme for independent resellers across the UK. Engineers install connections within seven to ten days of sign-up.

Krucial

Glasgow-based connectivity and data services startup for remote and off-grid industrial operations using satellite and IoT networks.

LANtech Communications Ltd.

Lantech Communications is a Plymouth-based networking company installing structured cabling to CAT5e, CAT6 and CAT6A standards, plus fibre optic links from OM1 to OS2. As an Excel cabling partner it offers a 25-year warranty on installed cabling. It also provides wireless solutions for graded or listed properties where cabling is restricted, alongside network fault tracing and project management for businesses across the South West of England.

LS telcom

LS telcom provides spectrum management solutions and radio communications services to national and international regulatory bodies, mobile and broadcast operators, public safety organisations, transport, utilities, defence, and vertical markets. The company's portfolio covers radio monitoring, spectrum planning, and IoT-based business model enablement. With more than 30 years of operation and customers in more than 100 countries, LS telcom delivers spectrum optimisation and regulatory compliance tools for both public and private network operators.

LSA Technology

LSA Technology supplies information technology services and solutions, covering systems management, consultancy, websites and internet support, systems integration, software and network maintenance. The company's network services include firewalls and internet security, and it also runs a full managed e-mailshot service for clients. LSA Technology has provided IT installation, support and management services to Network Recruitment Ltd for more than 10 years, according to a client testimonial published by the company. LSA Technology works with hardware and software vendors including Cisco, HP, IBM, Microsoft, Symantec and Toshiba.

LUNS Limited

LUNS Limited is a national telecommunications operator based at Lancaster University providing high-speed, carrier-class network services to organisations of all sizes. Customers include higher education institutions, county councils needing connectivity across a thousand or more sites, multi-national businesses and rural broadband communities. The company supplies Internet connectivity and fully-managed hosting solutions, covering network service design, delivery and support.

Landlord Broadband

Broadband provider specialising in student and purpose-built student accommodation internet solutions.

Leasedline.io

UK leased line comparison and consultancy platform helping businesses find business connectivity solutions.

Leisure Park Internet Solutions

Leisure Park Internet Solutions supplies high-speed wireless broadband to leisure and caravan parks across the UK. Its Direct to Van system places an external receiver on each holiday home linked to an internal router, maintaining signal strength for streaming and gaming with multiple simultaneous users. Short-term hotspot packages are available to guests, while park owners can commission whole-park connectivity, serving individual units or entire hire fleets.

Libra40 Tech

Libra40 Tech provides IT networks, AV solutions, security and wireless infrastructure for small and medium-sized businesses. The company also delivers IT-AV solutions for marine and residential clients, working with partner solution specialists on larger projects. Its engagement process runs through business discovery, design, installation, training and support stages, aiming to match a solution to a client's processes and future growth plans. Libra40 Tech Ltd. can be contacted by phone or WhatsApp on +44 208 133 5959.

LightSpeed Broadband

Full-fibre FTTP provider building networks across 32 market towns in East England and the West Midlands.

Lightning Fibre

Building a new FTTP broadband network across parts of Sussex and Kent for homes and businesses.

Lincs Wifi Solutions

Lincs WiFi Solutions is a Lincoln-based specialist installing WiFi, networking and satellite connectivity for homes and businesses across Lincolnshire and the East Midlands. Services include WiFi installation, network design and optimisation, structured data cabling, Starlink installation for rural locations, CCTV and access control systems. Every system is designed, installed and supported by one specialist, with ongoing maintenance and a personal guarantee on workmanship.

Lindy Electronics Ltd

Lindy Electronics supplies computer, audio, video and networking connection products from its Stockton-on-Tees base, selling online in the UK and internationally. Its catalogue covers network cables from Cat.5e to Cat 8.1 plus fibre optic, HDMI, DisplayPort and VGA cables and adapters, USB-C hubs and docking stations, KVM switches and extenders, power distribution units, wall plates and port blockers for IT and AV installations.

Linxcom Ltd

Linxcom Ltd supplies fibre optic and copper structured cabling products from Leicester. Its range covers fibre management hardware including patch panels, terminal boxes, splice enclosures and street cabinets, plus patch cords, pigtails, splitters, MTP/MPO solutions and indoor and outdoor fibre cable. Copper cabling spans CAT5e to CAT7 cable, wall outlets, voice patch panels and tooling, alongside floor, wall and outdoor data cabinets, media converters and test equipment.

Lit Fibre

Full-fibre FTTP altnet (acquired by CityFibre in 2024) delivering gigabit broadband to UK towns.

Liverpool Tech Group

Liverpool Tech Group is a Liverpool-based technology company providing structured data cabling, network design, switching, rack management, managed wireless access and fibre optic fusion splicing for domestic and commercial customers. It also installs smart CCTV, doorbells and alarm systems with remote app access, alongside web design, web hosting and email services. The company operates from Kempston Street, Liverpool.

Livewire Digital

Livewire Digital provides RazorLink, a hybrid connectivity platform that bonds cellular, satellite, and terrestrial networks to deliver resilient SD-WAN for mobile, maritime, defence, broadcast, and enterprise applications. Products include RazorLink SD-WAN software, SilverBlade II hardware, Hybrid Communications as a Service, and the M-Link video newsgathering suite covering live broadcast, managed file transfer, and mobile journalism. The platform serves connected vehicles, emergency response, smart cities, drones, trains, and government and defence networks.