Company Index
- M & A Doocey Plant Hire Ltd. - Tipton
- M & F McNicholas Bros Ltd. - Hartlepool
- M & M Skip Hire Ltd. - Witney
- M & S Crow Ltd. - Alford
- M A Products Ltd. - Tipton
- M Anderson Construction Ltd. - Chelmsford
- M Lambe Construction Ltd. - Birmingham
- M O'Brien (Plant Hire) Ltd. - St Albans
- M R Structural Ltd. - Norwich
- M Teevan Hire Co. Ltd. - London
- M & D Fabrications Ltd. - Eastleigh
- M & D Foundations & Building Services Ltd. - Doncaster
- M & G Steel Fabrications Ltd. - Hook
- M & J Plant & Transport Ltd. - New Tredegar
- M & J Welding Specialists - Aylesbury
- M & L Civil Engineering Ltd. - Bromsgrove
- M & M (Steel Fabrications) Ltd. - Newry
- M & M Woodward - Ramsgate
- M & M's Metalwork Ltd. - Winchester
- M & N Engineering Services Ltd. - Grimsby
- M & R Concrete Products - Doncaster
- M A C Services Ltd. - London
- M A S S Computers Ltd. - Norwich
- M and J Geraghty Plant Hire Ltd - Halifax
- M and S Engineering Ltd - Annan
- M B Adamson Ltd. - Preston
- M B Distribution (Cleveland) Ltd. - Middlesbrough
- M B Services - Immingham
- M Baalham - Bury St Edmunds
- M C Plant Hire - Perth
- M D Anthony Ltd. - Ely
- M D Crane Hire Ltd. - Brierley Hill
- M D F Specialised Coatings Ltd - Sheffield
- M Douglas and Co - Huddersfield
- M E B Fabrications Ltd. - Waterlooville
- M E C Bird Associates - High Wycombe
- M F & T Ltd - Poole
- M G Cosgrove Construction Ltd. - Grays
- M G Asbury Flooring Centre Co. Ltd. - London
- M G C Lamps Ltd. - Ipswich
- M G H Hire Ltd. - Market Rasen
- M G Plant Hire - Lymington
- M H Equipment - Rochester
- M H Laverick and Partners - Richmond
- M I W Holdings Ltd. - Croydon
- M J Abbott Ltd. - Salisbury
- M J Hickey Plant Hire & Contracts Ltd. - Morpeth
- M J McCabe & Sons Ltd. - Billingshurst
- M J Read (Contractors) Ltd. - Tenbury Wells
- M J Ryall Building Supplies Ltd. - Hitchin
- M J B Architectural Products Ltd. - Watford
- M J Barrett Construction - Uttoxeter
- M J Church (Plant) Ltd. - Chippenham
- M J Grace Civil Engineering Ltd. - Abbots Langley
- M J Lighting Technology Ltd - Chester
- M J M Marine Ltd. - Newry
- M J M Construction & Plant Hire - Preston
- M J McCanny - Strabane
- M J Plant Hire - Portsmouth
- M K Leslie Ltd. - Shetland
- M Keating (Civil Engineering) - Heywood
- M Laffey Ltd. - Newark
- M McManus - Romsey
- M Ormond Fabrications - Corby
- M Q M - Leicester
- M S & S Thompson & Son Plant Hire - Wakefield
- M S B Plant Hire - Ely
- M S Fabrications - Cheltenham
- M S M Contracts - Belfast
- M S R - Cradley Heath
- M S S R Forecourt Developments Ltd. - Rotherham
- M Selley Digger Hire - Hockley
- M Steel Engineering - Maidstone
- M Steels - Maidstone
- M T Buxton Industrial Services Ltd - Nottingham
- M T K (Breaker Hire & Sales) Ltd. - Manchester
- M T M Construction Ltd. - Aberdeen
- M T Wilde Plant Services Ltd. - Shrewsbury
- M W Kellogg Ltd. - Greenford
- M W Plant Hire Ltd. - Ware
- M W George - Worcester
- M Webb - Kingswinford
- M West & Son - Newport
- M Whittall - Shrewsbury
- M-Cut Anchor Systems Ltd - Atherstone
M-Tec UK Ltd - Warrington- M. Daly Manpower Ltd - Gillingham
- M. O'Neill Plant Hire Ltd - Dunstable
- M. P. B. Fabrications Ltd - Oldham
- M.G.F. (Trench Construction Systems) Ltd - Wigan
- M.T. Kaill (Plant Hire) Ltd - Stockport
- M2M Contract Interiors Ltd. - London
- Mac Fabrications - Manchester
- Mac Hodgson Civil Engineering Ltd. - Yarm
- MAC Ltd - Limerick
- Mac Plant Construction Ltd. - Bude
- Macc U K Ltd. - Leicester
- Maccaferri Ltd - Oxford
- Macdale Conservatories Ltd. - Blackpool
- Mach One (International) Ltd. - Sheffield
- Mackin's Concrete and Building Supplies - Newry
- Mackintosh Consultants - Mold
- Mackintosh Structures Ltd. - Arbroath
- Maclay (Civil Engineering) Ltd. - Airdrie
- Maclean Ardgay Ltd. - Ardgay
- Macrete Ireland Ltd - Antrim
- Maddisons Bathrooms Ltd. - York
- Madlin & Maddison - Farnham
- Mafkildea - London
- Magicscope Ltd - Haverhill
- Magna Inspections - York
- Magna Plant & Tool Hire - Sheffield
- Magnet Schultz Ltd - Woking
- Magnette Fabrications - Middlesbrough
- Magnum Fabrications - Spalding
- Maguire Contractors - Horsham
- Magus Electronics - Sandbach
- Mail Boxes G B - Walsall
- Main Fabrications Ltd. - Barnsley
- Main Frame Direct - West Lavington
- Mainland Contractors Ltd - Kettering
- Mainline Hire Ltd - Swadlincote
- Mainsprint Ltd. - Wigan
- Major Refrigeration and Air Conditioning Services Ltd. - Evesham
- Malbern uPVC Windows and Doors Ltd - Manchester
- Malbrook Conservatories Ltd. - London
- Malcolm Herbert - Carmarthen
- Mallon Patrick H - Bolton
- Maltaward Ltd. - Horsham
- Maltone Engineering Services - Loughborough
- Malvern - Malvern
- Mammoth Mobile Crane & Plant Repairs - Benfleet
- MAN Ltd - Droitwich
- MAN Ltd - London
- Manchester Concrete Ltd. - Salford
- Manchester Geotechnical Ltd. - Manchester
- Mandale Stone Co Ltd - Matlock
- Mandarin Slate Ltd. - Monmouth
- Mandco Ltd - Birmingham
- Mango Personnel Ltd - Exeter
- Manley Construction - Pontypool
- Manmart Ltd. - Preston
- Mann McGowan Fabrications Ltd. - Aldershot
- Manor Doors Ltd. - Barking
- Manor House Developments (UK) Ltd - York
- Manor Plant Hire Ltd. - Derby
- Manor Reproductions Ltd. - Bromsgrove
- Manorhouse Stone - Coalville
- Mansell - Aberdeen
- Mansell Construction Services - Swaffham
- Mansell Plc - Croydon
- Map Pipeline Construction Ltd. - Bristol
- Map Plant Ltd. - Barking
- MAPconcrete Pumping - Dudley
- Maple - Dudley
- Maple Grove Developments Ltd. - Preston
- Maplin Electronics Ltd. - Rotherham
- Maracom Ltd. - London
- Marble Heating Co Ltd - London
- Marble Hill Fireplaces Ltd. - Twickenham
- Marble Mosaic Co Ltd - Weston super Mare
- Marbonyx Ltd. - Rochford
- Marcel Blum Chartered Architect and Surveyor - Edgware
- Marchday Group Plc - London
- Marchwood Conservatories Ltd - Reading
- Marcliff Engineering - Banbury
- Marco Glass and Glazing - Bournemouth
- Marco Industries Ltd. - Sittingbourne
- Marcon Buildings & Services Ltd. - Horsham
- Marenda-Lindsey Ltd. - Market Rasen
- Marine and Plant Diesel Services Ltd - Muir of Ord
- Marine Lighting (U K) Ltd. - Birmingham
- Marine Scaffolding Ltd. - Jarrow
- Mark Culshaw - Ormskirk
- Mark & Julie Hutchinson - Loughborough
- Mark Harris - Cowbridge
- Mark Humphrey Ltd - Wokingham
- Mark Lloyd Plant Hire - Llandysul
- Marketbest Ltd. - Yarm
- Markham Plant - Leamington Spa
- Marks Barfield Ltd. - London
- Marland Fabrications Ltd. - Sunderland
- Marlec Engineering Co Ltd - Corby
- Marley Building Materials Ltd - Sevenoaks
- Marley Floors Ltd - Maidstone
- Marlow Integrated Designs Ltd. - High Wycombe
- Marlyn Engineering Ltd - Nelson
- Marmi E Granito - London
- Marmox (UK) Ltd - Rochester
- Marnhull Stone Ltd. - Sturminster Newton
- Marriott Ltd. - Rushden
- Marshall Quarry Products Ltd. - Scarborough
- Marshall-Tufflex Ltd - Hastings
- Marshalls Building Products - Wrexham
- Marshalls Clay Products Ltd - Dewsbury
- Marshalls plc - Bury
- Marske Fabrications & Engineers - Redcar
- Marston and Langinger Ltd - London
- Martech Technical Services Ltd - Huntingdon
- Martell Timber Ltd. - Birmingham
- Martin and Partners - Northampton
- Martin Doyle Associates Ltd - Otley
- Martin Gillard - Axminster
- Martin Harold J - Witham
- Martin McDermott - Whitchurch
- Martin Redwood - Yeovil
- Martin Robert J - Gravesend
- Marton (Civil Engineering) Ltd. - Pontypridd
- Marubeni-Komatsu - Hamilton
- Marwood Group - Northampton
- Mascus UK - Doncaster
- Masher Brothers - London
- Mason Engineering Hydraulics - Northallerton
- Mason G W - Weston super Mare
- Masonbarn Ltd. - Stockport
- Massey & Harris (Engineering) Ltd. - Stockport
- Massimo Paloschi - London
- Master Concrete Ltd - Beith
- Masterblock - Leicester
- Masterflex Technical Hoses Ltd. - Oldham
- Masterglaze Ltd. - Swansea
- Masterlay Products Ltd. - Wickford
- Mastertiler - Rainham
- Mateers Plant and Construction - Rochester
- Material Edge Ltd. - Macclesfield
- Material Resources Ltd. - Windsor
- Matki plc - Yateley
- Matta Products (U K) Ltd - Bedford
- Matthew Charlton & Sons (Slaters) Ltd. - Hexham
- Matthew Hiscock - Stockport
- Matthew John Dexter - Tamworth
- Matthews & Leigh Civil Engineering Ltd. - Chorley
- Matthews Roofing (Bristol) Ltd. - Bristol
- Maurer (U K ) Ltd. - Aylesbury
- Maurice Belton Machinery Ltd. - Boston
- Maurice Parker Ltd - Derby
- Mawsley Machinery Ltd - Northampton
- Maxi Plant Hire - Leicester
- Maxi Skips - Chichester
- MaxMax Ltd - Eccleshall
- May Contractors Ltd. - Solihull
- May Gurney Ltd. - Norwich
- Mayer Plant Hire - Whitchurch
- Mayfive Equipment Ltd. - Ruthin
- Mayhew Concrete - Southampton
- Maylam C J Plant Hire - Cheltenham
- Maylarch Environmental Ltd. - Witney
- Maylux Engineering Ltd. - Bolton
- Mayo Property Sales and House Ireland - Castlebar
- Maypine Construction Ltd. - Wellingborough
- Mayquest Ltd. - Cardiff
- MBA Chartered Surveyors - Birmingham
- Mbe (Fabrications) Ltd. - Spalding
- Mc (Keighley) Ltd. - Keighley
- McAleer & Teague - Omagh
- McBrine Structures (Midlands) Ltd. - Sutton Coldfield
- McBurney Civils Ltd. - Blackwood
- McCarrick Construction Co Ltd - Chester le Street
- McCloskey and O'Kane Building Co Ltd - Londonderry
- McColl Associates - Edinburgh
- McComb Coach Works - Lincoln
- McCormack Developments Ltd. - Stirling
- McCulloch Plant Hire - Tillicoultry
- MCD Engineering - Dungannon
- McDermott Building & Civil Engineering Ltd. - Birmingham
- McDonald & Ross Ltd. - Dalkeith
- McDonald Ceilings - Manchester
- McFen Haulage & Plant Ltd. - London
- McGeoghan Plant Hire Ltd. - Waltham Abbey
- McGill Electrical Ltd - Dundee
- McGill Electrical Ltd - Dunfermline
- McGill Electrical Ltd - Glasgow
- McGrath Bros (Waste Control) Ltd. - London
- McGrattan Piling Ltd / Jamie McGrattan Ltd - Glasgow
- McGregor Polytunnels Ltd - Alresford
- McGuckin Plant Hire Ltd. - Harlow
- McGurran Construction - Enniskillen
- McHallum Fraser - Stranraer
- McI Electrotechnics Ltd. - Aberdeen
- McIntosh & Robertson - Perth
- Mckenna Equipment Hire - Fleetwood
- McKinlay Williams Estates Ltd - Dartford
- McLaughlin & Harvey Ltd. - Newtownabbey
- McLeod & Aitken (Edinburgh) - Edinburgh
- McManus Brothers - Newry
- McMillan Plant - Stranraer
- McMillan Steel Fabricators - Glasgow
- McMullan John F - Ballymoney
- McMullen Architectural Systems Ltd - Craigavon
- McNamara Contractors Ltd. - Romsey
- McNealy Brown Ltd. - Sittingbourne
- McNicholas Construction Services Ltd. - Borehamwood
- McP McDonagh Construction - Nuneaton
- McPhillips (Holdings) Ltd. - Telford
- McQuaid Engineering Ltd - Dungannon
- McQuay International - London
- McRedmond Ltd. - London
- McVickers Ltd - Consett
- Mdb Associates Ltd. - York
- Mdhs Consultants - Witney
- Mds Civil Engineering Ltd. - Braintree
- Meadows Fabrications - Liverpool
- Mearns Sawmills - Dunkeld
- Mech-Tool Engineering Ltd - Darlington
- Mecright Ltd - Cannock
- Mecserve Ltd. - Wallington
- Mectech Services - Brentwood
- Meda Engineering - Stourbridge
- Medical Equipment Services Ltd. - Oldham
- Medisa Concrete Services - Godstone
- Mediterranean Stones Ltd. - London
- Medlock Interiors Ltd. - Oldham
- Medway - Rochester
- Meeres Civil Engineering Ltd. - London
- Megamid Logistics Ltd - Liverpool
- Megan Plant Hire Ltd. - Manchester
- Megaplant Ltd. - Hull
- Meir Roofing and Insulation Supplies - Goole
- Melbury Greenstone Ltd - Shaftesbury
- Mellows Engineering Ltd. - Nottingham
- Melton CFC Precast Floors - Liversedge
- Meltone Builders Ltd. - Kingsbridge
- Mendip Fireplaces (Somerset) - Shepton Mallet
- Mendip Mobile Crushing Services Ltd. - Bristol
- Mentorport Ltd. - Southampton
- Mep Solutions Ltd. - Ashington
- Merbro Welding - Gloucester
- Mereway Kitchens Ltd. - Birmingham
- Meridian Controls Ltd - Basingstoke
- Meridian Land Surveys Ltd. - Laurencekirk
- Meridian Maritime International Ltd. - Louth
- Meridian Plant Hire Ltd. - Peterborough
- Meridian Welded Structures - Maidstone
- Merisier-Hamilton Ltd - London
- Merlett Plastics (UK) Ltd - Yate
- Merlin Control Systems Ltd. - Richmond
- Merlin Interactive Ltd - Lisburn
- Merlin Lazer Ltd. - Tunbridge Wells
- Merrill Brown Ltd. - Nottingham
- Merseybeams Ltd. - Wirral
- Merseyside Plant Hire Ltd. - Wirral
- Merseyside Ship Repairers Ltd - Liverpool
- Merthyr Marble & Stone Co. - Merthyr Tydfil
- Mervyn Dicker - Wigton
- Mervyn Lambert Plant Ltd. - Diss
- Mervyn Rose Engineering Ltd. - Sturminster Newton
- Metainy Building Services Ltd - Sunbury on Thames
- Metal Craft Industries Uk Ltd. - Wellingborough
- Metal Creations Falkirk - Falkirk
- Metal Edge - London
- Metal Fabrication & Fencing Co. Ltd. - Upminster
- Metalbuild Ltd. - Liverpool
- Metalcraft Architectural Engineering Co Ltd - Barnoldswick
- Metalex Metal Works - Enfield
- Metalion Ltd - London
- Metalline (Services) Ltd - Burntwood
- Metals and Plant Ltd - Sheffield
- Metalscope Ltd. - Tewkesbury
- Metaltek - Melton Mowbray
- Metalways Ltd. - Leicester
- Metalweld Fabrications - Ebbw Vale
- Metalwood Fencing (Sales) Ltd. - St Albans
- Metamix Concrete - Bilston
- Metcalfe Plant Hire Ltd - Penrith
- Metcalfe W & P M Plant Hire - Richmond
- Metcon - Christchurch
- Metnor Group plc - Newcastle upon Tyne
- Metra Non-Ferrous Metals Ltd. - Hoddesdon
- Metro Ltd. - Rayleigh
- Metroseal - Rochford
- Mexframes Ltd - Doncaster
- Meynell Plant Hire Ltd. - Leicester
- MF Engineering Ltd - Newton Aycliffe
- MF Tofield and Sons - Bletchley
- Mgdp Construction Ltd. - Glasgow
- MGF (Trench Construction Systems) Ltd - Manchester
- Mgf (Trench Construction Systems) Ltd. - Rugeley
- MH Design - Retford
- MHA Int-Elect Ltd - Manchester
- MHD Consultants Ltd - Bedford
- Mhf (Uk) Ltd. - Worcester
- MHI - Newark
- Mhr Designs Ltd. - Bury St Edmunds
- Micam Ltd - Cork
- Michael Neil - Heanor
- Michael A Whitfield & Associates - Redditch
- Michael Clancy Contractors Ltd. - Cannock
- Michael Hunter & Sons Ltd. - Ormskirk
- Michael J Broome & Associates - Stourbridge
- Michael J Johnson - Birmingham
- Michael John Worster - Cheltenham
- Michael Joyce Ltd - Ilford
- Michael Rennie - Bolton
- Michael Thompson (Public Works Contractors & Engineers) Ltd - Carlisle
- Michael Thorne - Exeter
- Michelmersh Brick & Tile Co. Ltd. - Romsey
- Mick Jones Plant - Cannock
- Micklewrights Structures Ltd. - Dudley
- Micromat International - Rushden
- Micromix RM - Durham
- Micron Aluminium Doors Ltd. - Orpington
- Micron Precision Engineering Services Ltd - Bradford
- Micron Stainless Steel Hygienics - Swadlincote
- Microsense Systems Ltd - Fareham
- Mid Glam Construction Ltd. - Pontyclun
- Mid Kent Machine Service - West Malling
- Mid Ulster Plant Hire - Dungannon
- Mid-Sussex Testing Services Ltd. - Hassocks
- Midas Technologies (G B) Ltd. - Peterborough
- Midgley & Palmer Civil Engineering Ltd. - Shipley
- Midland Building Products Ltd - West Bromwich
- Midland Construction Supplies Ltd. - Wolverhampton
- Midland Decorative Surfaces Ltd - Birmingham
- Midland Excavator Hire Ltd. - Ashbourne
- Midland Fabrication & Welding Ltd. - Oldbury
- Midland Felt Roofing Ltd - Oxford
- Midland Interiors Ltd - Redditch
- Midland Polishing & Plating Co. Ltd. - Wolverhampton
- Midland Quarry Products - Coalville
- Midland Wallboards Ceilings - Birmingham
- Midwest Plant - Brecon
- Mike Bartlett Plant Hire - Plymouth
- Mike Cuddihy Civil Engineering - Cardiff
- Mike Honour Windows Ltd - Moreton in Marsh
- Mike May - Gloucester
- Mike Waller Projects - Dorking
- Mila Hardware UK - Daventry
- Milbank - Colchester
- Milbury Systems Ltd. - Clevedon
- Mildren Construction Ltd - Christchurch
- Miles of Tiles Ltd - Leamington Spa
- Miletree Construction Ltd - Milton Keynes
- Milford Construction Co - Newtown
- Millar Callaghan Engineering Services Ltd. - Irvine
- Millburn Concrete - Cookstown
- Millenium Sheet Metal and Fabrication - Shefford
- Millennium Coating (UK) Ltd - Ripley
- Millennium Components - Huddersfield
- Millennium Crane Hire Ltd. - London
- Millennium Lighting (U K) Ltd. - Leeds
- Miller Bros (Romford) Ltd. - Romford
- Miller Hamilton Plant Ltd. - Denny
- Miller Piling Ltd - Borehamwood
- Mills Contracts Ltd. - Omagh
- Mills Properties (Nw) Ltd. - Bolton
- Millside Cabinet Makers - Royston
- Milsteel Fabrications - Abergavenny
- Milton Building Services Ltd. - Bristol
- Milton Estates Ltd. - Liverpool
- Milton Keynes Mini Mix - Milton Keynes
- Milton Pipes Ltd. - Sittingbourne
- Milward Construction (Belper) Ltd - Belper
- Mindmachine Associates Ltd. - North Shields
- Minear Engineering - St Austell
- Minera Roof Trusses Ltd - Wrexham
- Minerva Appointments Ltd. - Leeds
- Minerva Electrical - Trowbridge
- Mini Dig - Swindon
- Mini Mix - Southport
- Mini Mix Concrete - Wigan
- Mini Mix Concrete & Mini Digger Hire - Belfast
- Mini Muck Shift - St Asaph
- Minsterstone Ltd. - Hinton St George
- Miracle Design & Play Ltd. - Northampton
- Mirage Interiors - Weston super Mare
- Mirenbourne Ltd - Penzance
- Mister Steel Ltd. - London
- Mita Cable Management - Flint
- Mitech Joinery - Ripley
- Mitregate Ltd - Heanor
- Mitsubishi Electric (UK) Ltd - Croydon
- Mixamate - Sevenoaks
- Mixamate Concrete - Edmonton
- MJ Buildings Services Group plc - London
- MJ Conway - Henley on Thames
- MJ Gleeson Group plc - Sutton
- MJ Hickey (Plant Hire) Ltd - Iver
- MJ Sheetmetal - Atherstone
- MJD and Sons Scaffolding Ltd - Irvine
- MJG-R Ltd - Evesham
- MJN Colston Ltd - Bristol
- MJS Joinery Manufacturers and Contractors - Louth
- MKM Extrusions Ltd - Lostwithiel
- ML Electronics Ltd - Salisbury
- MML McGeoch Marine Ltd - Glasgow
- MMPI Ltd - Dunmow
- Mobile Applications Ltd - Stoke on Trent
- Mobile Concrete Supplies - Wymondham
- Modern Door Closers Ltd - Bognor Regis
- Modern Engineers Ltd. - Southall
- Modern Plant Hire Ltd. - Rugby
- ModularUK Building Systems Ltd - Driffield
- Modulift UK Ltd - Poole
- Modus Group Ltd. - London
- Molegrove (1984) Ltd. - Chelmsford
- Molly Bather Ltd - Trowbridge
- Momentum Design Management Ltd - Redhill
- Mona Precast (Anglesey) Ltd. - Gaerwen
- Monarch Recruitment Ltd - Birmingham
- Monell - Birmingham
- Monitor Environmental Ltd - Nottingham
- Monk Plant Hire - Dereham
- Monkey Tower - Ingatestone
- Monodraught Ltd. - High Wycombe
- Monofix Ltd - Birmingham
- Monowa Ltd - Rickmansworth
- Montage Designs Ltd. - Mitcheldean
- Montana Corporation - London
- Montpellier Marble Ltd. - Cheltenham
- Montrose Secam Ltd. - Iver
- Monument Design Associates Ltd. - Billericay
- Moons Plant Hire Co. - Newmarket
- Moorbridge Construction Ltd. - Mold
- Moore Bros Builders & Interior Contractors - Coventry
- Moore Concrete Products Ltd - Ballymena
- Moore K & Son - Lifton
- Moore's Building Supplies Ltd. - London
- Moores Ltd. - Colne
- Morcas Civil Engineering Contracts Ltd. - Ballynahinch
- Morcon (Dyfed) Ltd. - Carmarthen
- Morecambe - Morecambe
- Morfitts - Leeds
- Morgan (Timber and Boards) Ltd - Kidderminster
- Morgan Marine Ltd - Ammanford
- Morgan Uk Ltd. - Birmingham
- Morgans Of Usk Ltd - Usk
- Morley Services - Alfreton
- Morrells Woodfinishes Ltd. - Stockport
- Morris & McGinn Ltd. - Teignmouth
- Morris Leslie Ltd - Hemel Hempstead
- Morris Plant Hire Ltd - Welshpool
- Morrish & Partners Ltd. - Welwyn Garden City
- Morrison and Murray (Engineering) Ltd - Galashiels
- Morrison Construction - International - Matlock
- Morrow Skip Hire - Turriff
- Morse W E & Son - Haverfordwest
- Moss Construction Southern Ltd. - Cheltenham
- Mossvale Maintenance & Sealing Services Ltd. - Birmingham
- Mott MacDonald Ltd - Bristol
- Mott MacDonald Ltd - Colwyn Bay
- Mott MacDonald Ltd - Inverness
- Mott MacDonald Ltd - Newcastle upon Tyne
- Mott MacDonald Ltd - Sheffield
- Mount Machinery - Leeds
- Mouse Valley Plant Ltd. - Lanark
- Mowlem Civil Engineering - Doncaster
- Mowlem Midlands - Nottingham
- Mowlem plc - Bath
- Mowlem Plc - Glasgow
- MP Welding Fabrications - Peterborough
- Mpm Properties Ltd. - Cambridge
- Mrf Fabrications Ltd. - Poole
- MRI Worldwide - Sutton Coldfield
- MS Air Movement Ltd - Hitchin
- MSD Design Ltd - Aberdeen
- MSD Lifting Ltd - Darlington
- MSL Property Care Services Ltd - Halifax
- Msp Construction Ltd - Rotherham
- MSS Clean Technology Ltd - York
- Mtech Group Ltd. - Shrewsbury
- MTS Bobcat - Chester le Street
- Muirhead Drainage & Plant Hire Ltd. - Kilmarnock
- Mulcair Ltd. - Caernarfon
- Mulholland Plant Hire Ltd. - West Calder
- Multi Marque Production Engineering Ltd. - Wakefield
- Multi-Fab Construction Ltd - Leominster
- Multi-Floors Ltd. - Oxford
- Multi-Tech Contracts Ltd - Warrington
- Multi-Weld - Doncaster
- Multiforce Ltd. - Iver
- Multilines Ltd. - Wembley
- Multipix Imaging Ltd - Petersfield
- Mundy Structural Steel Ltd. - Feltham
- Murphy David J - Sittingbourne
- Murray James & Sons - Cupar
- Murrelektronik Ltd - Manchester
- Murrill Construction Ltd. - Wokingham
- Musketeer Services Ltd - Horley
- My Design - Crawley
- MZ Construction UK Ltd - London
