| Name | Information | Web address |
| M & M Communications | Telecommunications Installation | |
| M. & S. Solutions | Networking Specialists | http://www.mssolutions.co.uk |
| M.A.S.E. | Data & Voice Network Installation | http://www.mase.co.uk |
| M.E.S. Technology | PC System Sales & Support | http://www.mestech.co.uk |
| M.G. Telecommunications Ltd | Telecommunications Consultancy Services | |
| M.L. Integration | Network Systems Management | http://www.mlintegration.com |
| M.L.L. Telecom Ltd | Supplier of managed broadband wireless services | http://www.mlltelecom.com |
| M.M. Telecables Ltd | Network Installation Services | http://www.mmt.co.uk |
| M.P.C. Mobile Phone Centre | Mobile Phone Suppliers | http://www.mpc.co.uk |
| M.R.S. Communications Ltd | Radio Communication Sales | |
| MSB Design | MSB design and manufacture telecoms test equipment They specialise in the analog side of telecoms, the equipment being used for approvals test procedures | http://www.msbdesign.co.uk |
| M.S.C.S. (N.I.) Ltd | I.T. Solutions Provider | http://www.mscs.co.uk |
| MTL Instruments Group | Incorporates MTL Surge and Telematics - part of Atlantic Scientfic Corp | http://www.mtlsurge.com |
| M.T.S. Communications Ltd | Distribute Datacoms Products | http://www.mts-communications.co.uk |
| M.T.V. Telecom (Distribution) Plc | Supply Telecommunication Equipment | http://www.mtvtelecom.co.uk |
| Macfarlane TeleSystems Ltd | Computer Telephony, Telecommunications, Soft Switches & Call Centre Technology | http://www.macfar.co.uk |
| MacroTel International Corporation | - | http://www.macrotel.com/ |
| Macrovoice | - | http://www.macrovoice.com/< |
| Madison Cable Ltd | Manufacture & Supply Hi-Tech Cabling | |
| Magenta Systems Ltd | Software development company. 20 years Wang experience but also offers Windows applications and publishes comparisons of UK telecom prices and Intel motherboards | http://www.magsys.co.uk |
| Mainframe Communications Ltd | Manufacture Fibre-Optic Cables | http://www.mainframecomms.co.uk |
| Mainline Accessories Ltd | Distributors of Mobile Phones | http://www.mainlineuk.com |
| Maintel Europel Ltd | Telecoms Maintenance | http://www.maintel.co.uk |
| Management Software Systems Ltd | Computer & Telecommunications Sales & Support | http://www.mssgroup.co.uk |
| Maneston Associates Ltd | Business Telecommunications Service Providers | |
| Manor House Communications | Telecomms Equipment Rebuilders | |
| Manx Telecom Ltd | Telecommunications Service Provider | |
| MapInfo | - | http://www.mapinfo.com/ |
| Marcom Communications | Business Telephone Systems Specialistss | http://www.marcom.com |
| | | |
| Marcom Systems Ltd | Multimedia Solution Providers | http://www.mar-com.co.uk |
| Marconi | - | http://www.marconi.com/ |
| Marconi Communications Ltd | Telecommunication Software Development | |
| Marconi Ltd | Manufacture Telecom Systems | http://www.marconicoms.com |
| Marconi Networks & Component Services Ltd | Manufacture Wiring Enclosures | http://www.marconi.comms.com |
| Marconi Plc | Telecommunications Equipment & Network Installers | http://www.marconi.com/ |
| Marlborough Communications Ltd | Radio Communication Equipment Manufacture | |
| Marmah Magnetics | - | http://www.magi.com/~marmag/marmah.html |
| marotztel | - | http://www.marotztel.com |
| Martin Dawes Telecommunications | Mobile Phones & Air Time Provider | |
| Master Network Ltd | Data, Voice & Telephone Cabling | http://www.4u2give.com |
| Masterpoint Engineering Ltd | Telecommunication Equipment Sales & Support | |
| Masts Towers & Antennas Ltd | Air Network Tower Contractors | http://www.mtaltd.co.uk |
| Matcom U.K. Ltd | Voice & Data Communications Solutions | http://www.matcomuk.co.uk |
| Matra Marconi Space U.K. Ltd | Manufacture of Satellite Communication Systems | |
| Matrix Network Services Ltd | Network Suppliers | http://www.matrixns.co.uk |
| Matrix Telecom Ltd | Telecommunications Equipment Supplier | http://www.matrix-vad.co.uk |
| Matsushita Communications U.K. Ltd | Manufacture & Distribute Mobile Phones | |
| Matsushita Electrics Europe Ltd | Television & Mobile Phone Manufacturer | http://www.matsushita-europe.com |
| MaxBill | - | http://www.Maxbill.com |
| Maxon Europe Ltd | Design & Development of Two Way Radios & Pagers | |
| McCurdy Radio | | http://www.mcradio.com/ |
| McKee Hagborg Connectors Ltd | Manufacture & Distribute Cabling | http://www.mhconnectors.com |
| McNicholas Communications Ltd | Telecommunication Network Engineers | |
| MDR Telemanagement Ltd | - | http://www.mdr.com/ |
| Medigen Telecommunications Ltd | Supply Free Taxi Phone Services | http://www.medigen.co.uk |
| Mekelek Assembly Ltd | Telecommunication Equipment Assembly | |
| Melita Europe Ltd | Total Interactive Solution Provider | |
| Mentor Engineering Inc | - | <http://www.mentoreng.com/ |
| Merge Technologies Group inc. | - | http://www.mergetech.com |
| Meridian Options Systems Support Ltd | PABX Systems Installation & Maintenance | http://www.meridian-options.co.uk |
| MetaSolv Software Inc. | - | http://www.metasolv.com |
| Metawave Communications Corporation | - | http://www.metawave.com/ |
| Methode Fibre Optics Europe Ltd | Manufacture Fibre Optic Products | http://www.methode.co.uk |
| Metro Cable Television | Supply & Install Cable Television | |
| Metrodata Ltd | High Performance Network Solution Providers | http://www.metrodata.co.uk |
| MICOM Communications Corp. | - | http://www.micom.com/ |
| Microcare Systems Ltd | Telephone Systems Supply & Installation | http://www.microcare-systems.co.uk |
| Microcelluar Systems Ltd | Telecommunications Solutions | |
| Microlease Plc | Rental of test equipment and computers | http://www.microlease.com |
| MicroLegend Telecom Systems | - | http://www.microlegend.com/ |
| Microsoft | - | http://www.microsoft.com/ |
| Microtech Digital Services Ltd | Data & Voice Network Installation | http://www.micro.demon.co.uk |
| Midcom Communications Inc | - | http://www.mdcom.com/ |
| Midland Communications Co. Ltd | Telecommunications Equipment Sales & Installation | |
| Midland Phone Services Plc | Telecommunications Equipment Dealer | http://www.mpsplc.co.uk |
| Milgo Solutions | Data & Voice Communications Solutions | |
| Millennium Integrated Services Ltd | Voice & Data Networking Specialists | |
| Mini Call Centres Ltd | Agents for Worldcom | |
| Minima Design | Industrial Design & Prototyping/CAM | http://www.minima.co.uk |
| Minorplanet Ltd | Satellite Tracking Equipment Manufacture | http://www.minorplanet.com |
| Minting Communications | Installation of Telecoms Systems & Cabling | http://www.btinternet.com |
| Mitec Europe Co. Ltd | Manufacture Satellite Wave Guide Equipment | |
| Mitel Telecom Ltd | Telecommunications Manufacturers | http://www.mitel.com |
| Mitsubishi Electric Europe B.V. | Computer System Sales & Support | |
| MNS Ltd | Telecommunication Least Cost Routers | http://www.mnslimited.com |
| Mobell Communications Ltd | Short Term Hire of Mobile Telephones | http://www.mobell.com |
| Mobile Data Solutions Inc Ltd | Complete Communication Solution Provider | http://www.mdsi.co.uk |
| Mobile Phone Repair Co. Ltd | Mobile Telephone System Repairs | http://www.mplc.co.uk |
| Mobile Radio Ltd | Supply & Install Mobile Communications Equipment | |
| Mobilsden - dk (Danish) | - | http://www.webnet.dk/mobil |
| Models & Computers Plus | Computer System Suppliers | http://www.modcomp.prestell.co.uk |
| Modular Technology Plc | Manufacture Data Communications Equipment | http://www.modulartech.com |
| Molex Premises Network Ltd | Manufacture Telecoms Structured Cabling Systems | http://www.mod-tap.co.uk |
| Momentum Integrated Communication Ltd | Integrated Communications | http://www.momentumuk.co.uk |
| Montal Group Ltd | Voice and Data Integration specialists. Telephony, CTI and CRM Solutions - Design, Installation and Support. | http://www.montal.com |
| Moonraker U.K. Ltd | Manufacture Antennas & Communication Equipment | |
| Morning Star Technologies | - | http://www.morningstar.com/ |
| Morricom TCT | Telecommunications Engineering Service | |
| Motion Media Technology Ltd | Video Phone & Video Conferencing Manufacturer | http://www.motionmedia.co.uk |
| Motorola | Distribute Cable & Satellite Television Systems | http://www.mot.com/ |
| Moywest Cabling Planning & Design Ltd | Landline Cabling Planning & Design | |
| MuLogic Datacommunications | - | http://www.mulogic.com/ |
| Multi-Task Ltd | Voice & Data Network Integration & Solutions | |
| Multilink Business Communications Ltd | Telecommunication Systems Sales & Support | |
| Multipoint Communications Ltd | - | http://www.multipoint.co.uk |
| Multitone Electronics Plc | Radio Paging & Mobile Equipment Sales | http://www.multitone.co.uk |
| MX-COM | - | http://www.mxcom.com |
| N.F.S. Hospitality Corporation | I.T. Solution Providers | http://www.nfs-hospitality.com |
| NTL | Telecommunication Service Provider | http://www.ntl.com |
| National Business Communication | Voice & Data Networking | http://www.nbchq.co.uk |
| National Radiofone Ltd | Telecommunications Equipment Sales & Support | |
| National Remote Sensing Centre Ltd | Satellite Data Processing Centre | |
| Nationwide Cellular Fit Ltd | Mobile Phone Car Kit Installations | |
| Navigato A/S | - | http://www.navigato.dk/ |
| NCD | - | http://www.ncd.com/ |
| nCUBE | - | http://www.ncube.com/ |
| NDH Design Software | - | http://www.ndhnetworks.com |
| NEC UK Ltd | Manufacture Business & Mobile Phone Equipment | http://www.nec-global.com/ |
| NEC Technologies U.K. Ltd | Manufacture Mobile Phones | http://www.nec.tech.co.uk |
| Nemo Technologies | Measurement Tools for Wireless Networks | http://www.nemotechnologies.com |
| Neohost Telecomunicasoes (Brazil) | Telecoms site acquisition, planning, engineerring and installation services | http://www.neohost.com.br |
| Nera Ltd | Telecommunications Specialist | http://www.nera-telecoms.co.uk |
| Nera Satellite Services Ltd | Satellite Communication Solutions | http://www.nera.ltd.uk |
| Nera Telecommunications | - | http://www.nera.no/ |
| Nessco Ltd | Supply & Install Telecommunication Systems | http://www.nessco.co.uk |
| NET Europe Ltd | Communication Services | http://www.net.com |
| Net2Net Corporation | - | http://www.net2net.com/ |
| Netcall Telecom Ltd | Computer Internet Control Telephony | http://www.netcall.com |
| Netcare Europe Ltd | Network & Cabling Supply & Installation | http://www.netcare.co.uk |
| Netergy Networks | Sales of Computer Components | http://www.netergynetworks.com |
| NetGem | - | http://www.netgem.com |
| NetLink Technologies | - | http://www.NetLinkWeb.com |
| Netrix | - | http://www.netrix.com/ |
| Netscape Communications Corp. | - | http://home.netscape.com |
| Netscient | - | http://www.netscient.com/ |
| NetSet A/S | - | http://www.netset.dk/ |
| Netshop Ltd | I.T. & Telecommunication Cabling Sales | http://www.netshop.co.uk |
| NetSpan | - | http://www.netspan.com/ |
| NetStar | - | http://www.netstar.com/ |
| Network Alliance Ltd | Network Specialists | |
| Network Cabling Installations Ltd | Network Cabling Installation Services | http://www.itcables.com |
| Network Communication Systems Ltd | Warden Control & Door Entry Systems Maintenance | |
| Network Connect | Sales & Support of Business Telecommunications | http://www.networkconnect.co.uk |
| Network Distribution | Data & Voice Networking & Cabling | http://www.networkdistribution.co.uk |
| Network Equipment Technologies Inc (N.E.T.) | - | http://www.net.com/ |
| Network Group Ltd | Telecommunications Equipment Manufacture | http://www.thenetworkgroup.co.uk |
| Network Services Ltd | Networking & Telephony Services | http://www.networkservices.co.uk |
| Network Systems | - | http://www.network.com/ |
| Network Telex | Sales & Support of Telex Machines & Software | http://www.telex-net.co.uk |
| Network Warehouse Inc | - | http://www.netwarehouse.com/ |
| Neural Technologies Ltd | Neural Computing Specialists | http://www.neuralt.com |
| New World Payphones Ltd | Supply & Manage Payphone Services | http://www.newworld.co.uk |
| New World Telecomm U.K. Ltd | Install & Maintain Business Telephone Systems | http://www.newworldtelecomm.co.uk |
| Newbridge Networks | Installation of Networks & Telecommunications | http://www.newbridge.com/ |
| Newgate Communications Ltd | Mobile Phones Sales & Support | http://www.newgate.co.uk |
| Newood Telecom Ltd | Sales & Installation of Business Telephone Systems | |
| Nimans Ltd | Telecommunications Product Sales & Support | |
| Nippon Telecom Ltd | Telecommunications Service Provider | http://www.nippontel.co.uk |
| Nitech Inc | - | http://www.nitechinc.com/ |
| Nitsuko U.K. Ltd | Telecommunication Systems Distribution | http://www.nitsuko.co.uk |
| Nokia Telecommunications Ltd | Telecommunication Equipment Specialists | http://www.nokia.com/ |
| Nokia R. & D. U.K. Ltd | Mobile Phone Development | |
| NORDX CDT Ltd | Cabling Manufacture & Distribution | |
| Norfolk Copiers Ltd | Sales of Photocopiers & Telephone Systems | |
| Norgate Telecom Services Ltd | Supply & Install Telephone Systems | |
| Nortec Production Ltd | Sub Contract Manufacturers of PCB's | |
| Nortel | - | http://www.nortel.com/ |
| Nortel Networks | Manufacture & Distribute Telephone Systems | http://www.nortel.co.uk |
| Nortel Networks Ltd | Complete Telecoms Networking Solution Providers | http://www.nortelnetworks.com |
| Nortel Networks Plc | Sales, Marketing & Production of Telecoms Systems | |
| North East Radiopaging Ltd | Communications Equipment Suppliers | |
| North London Telecom Services | Telecommunications Equipment Sales & Support | http://www.nltd.box.co.uk |
| North Supply Ltd | Telecommunications Peripherals Sales & Support | |
| Northern Infocom Ltd | Telecommunication Equipment Supplier | |
| Northface Connections Ltd | Network Solution Centre | |
| Northstar Unlimited | - | http://www.northstartel.com/ |
| Norwich Phone & Fax Co. Ltd | Distribution of Telephone & Fax Equipment | |
| Norwood Adam Distribution Ltd | Systems Integration Distributors | http://www.norwood-adam.com |
| Notepage Inc | - | http://www.notepage.com/ |
| Nova Electronic Developments Co. Ltd | Data, Voice & Radio Cabling Services | http://www.novadev.co.uk |
| Novalink Technologies Inc | - | http://www.novatech.com/ |
| Novell | - | http://www.novell.com/ |
| NT Telecom Ltd | Telephone Repair & Installation | |
| NTT Europe Ltd | Telecommunication Equipment Sales & Service | http://www.ntt.co.uk |
| O.C.I.S. Plc | Telecommunications Value Added Reseller | |
| O.i.T. | Integrated Communications Services | http://www.oit.net |
| O.N.I. Ltd | Retail Communication Equipment | http://www.oni.co.uk |
| O.R.A. Electronics U.K. Ltd | Manufacture & Distribute Mobile Phone Peripherals | |
| Oak Telecom Ltd | Telephone Call Management & Voice Mail Specialists | |
| Objective Communications | - | http://www.objectivecom.com/ |
| Object Design | Object Design provides robust, high performance data management solutions to the telecommunications industry for core applications such as Network Management, Intelligent Networks, Decision Support, Provisioning Systems and Operational Support Systems | http://www.objectdesign.com |
| Ocean Solutions | - | http://www.coeansolutions.com |
| Octel | - | http://www.octel.com/ |
| Odyssey Systems | Telecommunications Installation & Maintenance | http://www.odyssey-systems.co.uk |
| Oki Electric | - | http://www.oki.com/english/OkiGlobal.html |
| Olicom | - | http://www.olicom.dk/ |
| Olympic Communications (Europe) Ltd | Network Cabling Specialists | http://www.olympic-communications.co.uk |
| Omicron Telesystems | - | http://www.omicron.ca/ |
| Omnicom Communications | Customer Care and Billing Solution Provider | http://www.omnicoms.com |
| Omnicom Ltd | Computer Systems Sales & Support | http://www.omnicom-ltd.co.uk |
| Online Web Services | Website design, development, promotion, and associated services (Pakistan based) | http://www.Online-Webservices.com/ |
| On Line Systems Ltd | Telecomms Equipment Supplier | http://www.online-systems.co.uk |
| On-Site Communications Ltd | Communication Systems Sales, Rental & Servicing | http://www.radio-link.co.uk |
| Oneac Ltd | U.P.S. Suppliers | http://www.oneac.com/ |
| Open Computers & Finance Plc | VAR & ISV | http://www.ocf.co.uk |
| Open Networks Engineering Ltd | Network Communication Specialists | http://www.one.co.uk |
| Open Systems Engineering Ltd | Computer Hardware Maintenance & Cabling | http://www.osegroup.com |
| Optical Data Communications Ltd | Data & Voice Cabling Installation | |
| Optical Data Systems Inc ODS | | http://www.ods.com/ |
| Optimal Communications Ltd | Data & Voice Cabling Installation | http://www.optimal-gear.com/ |
| Optimal Networks | - | http://www.optimal.com/ |
| Option International | - | http://www.option.com/ |
| Opus Business Systems Ltd | Telecomms Equipment Supplier | http:/www.opus-telecom.co.uk/ |
| Orckit Communications | - | http://www.orckit.com/ |
| Origin U.K. Ltd | Facilities Management & Outsourcing | |
| Ortel Corporation | - | http://www.ortel.com |
| Ottercom Ltd | - | http://www.otter.co.uk/ |
| Outburst Ltd | Telecommunications Least Cost Routers | http://www.outburst.co.uk |
| Oxford Electrical Products | - | http://www.oep.co.uk/ |
| P-COM U.K. | Communications Research & Development | |
| P.B.I. Communications Ltd | Business Telephone & Datacommunications Solutions | http://www.pbi.comms.com |
| P.C.M. Customer Service Centre Ltd | Telecommunication Equipment Repair Centre | |
| P.D.I. Data Com Network Ltd | Network & Communication Systems Specialists | |
| P.K.B. Technologies Ltd | Voice & Data Network System Solution Providers | http://www.pkbtech.com |
| P.L. Communications (International) Ltd | Business Telephone Solutions | http://www.plpcom.co.uk |
| P.T.C. Systems Ltd | Telecommunications Solutions Centre | |
| Pacific Cable (Pacific Custom Cable Inc) | Sells cables, memory, networking supplies, books and more from Auburn WA | http://www.pacificcable.com/ |
| Pacific Communication Sciences Inc | - | http://www.pcsi.com/ |
| Pacific Telecom Ltd | Mobile Phone Distributor | |
| Page U.K. Ltd | Mobile Phone Sale & Rental | |
| PairGain Technologies Inc. | - | http://www.pairgain.com |
| Pama & Co. Ltd | Mobile Phone Peripheral Sales | http://www.pama.co.uk |
| Panasonic Industrial Europe Ltd | Electronic Retailers & Customer Support | http://www.industrialpanasonic.co.uk |
| Paradigm Westminster Computing Ltd | Software Design & Development | |
| Paragon Data Services Ltd | Voice & Data Network Installers | http://www.paragondataservices.co.uk |
| Paragon Networks international | Provider of telecommunications equipment for mobile and service providers | http://www.paragon-networks.com |
| Park Air Electronics | Manufacture Radio Communications Equipment | http://www.parkair.co.uk |
| Parlex Corp | - | http://www.parlex.com/ |
| Patron Communications Ltd | Warden Call Systems Solutions | |
| Patton Electronics | - | http://www.patton.com/ |
| Paxdata Ltd | Manufacture Communication Products | http://www.paxdata.com |
| Pay Phone Market Place | - | http://www.payphones.com/ |
| Payphone Connection Online | - | http://www.payphoneconnection.com |
| Payphones-USA | - | http://www.payphones-usa.com/ |
| PC's & Cables Ltd | Installation of LAN & WAN Networks | http://www.pcandcables.co.uk |
| Pc-plus | - | http://www.pc-plus.de/ |
| PCC Systems Ltd | Computer Systems Sales & Support | |
| Peak Service Solutions Ltd | PC Systems Sales & Support | |
| Peco II Inc | - | http://www.peco2.com/peco2/ |
| Pedmore Computer Services Ltd | I.T. Solution Providers | http://www.pedmore-computers.com |
| Peninsula Networks Ltd | Voice & Data Networking Specialists | http://www.peninsula.co.uk |
| Pennine Telecom Ltd | Telecommunications & Radio Communication Solutions | http://www.penninetelecom.com |
| Performance Telecommunications | - | http://www.perftel.com/ |
| Perle Specialix International Ltd | <
