Category: Machine Shops (1) in Metal & Metalwork

Category: Machine Tool Accessories & Services (1) in Tools & Machinery

Category: Machine Tools - Sales (3) in Tools & Machinery

Category: Machinery - Industrial & Commercial (12) in Tools & Machinery

Category: Mail Order & Catalogue Shopping (28) in Specialist Shops

Category: Mailing Houses (11) in Advertising, Promotions & Marketing

Category: Make-Up Artists (1) in Beauty

Category: Manufacturers (10) in Wholesale & Distribution

Category: Manufacturers Agents (4) in Wholesale & Distribution

Category: Maps, Charts & Globes (7) in Specialist Shops

Category: Marble Specialists (9) in Building Materials

Category: Marinas & Boat Moorings (2) in Boating

Category: Marine Engineers (4) in Engineering

Category: Marine Equipment & Supplies (3) in Wholesale & Distribution

Category: Marine Services (8) in Boating

Category: Marine Surveyors (1) in Boating

Category: Maritime (3) in Industry & Manufacturing

Category: Market Operators (1) in Street Traders

Category: Market Research (48) in Office & Administration Services

Category: Marketing Consultants & Services (100) in Office & Administration Services

Category: Marking & Identification Equipment (3) in Security

Category: Marquee Manufacturers (1) in Soft Furnishings

Category: Marquees, Tents & Portable Floor Hire (15) in Soft Furnishings

Category: Martial Arts Instruction (3) in Sport

Category: Materials Handling Equipment (3) in Equipment & Supplies

Category: Maternity Wear (3) in Clothing

Category: Mats & Matting (1) in Soft Furnishings

Category: Measurement & Calibration (6) in Industry & Manufacturing

Category: Measuring, Analysing & Controlling Instruments (3) in Automation

Category: Meat - Wholesale (8) in Food & Drink Supplies

Category: Mechanical Engineers (11) in Engineering

Category: Mechanical Handling Engineers (1) in Engineering

Category: Media (73) in Business Services

Category: Media Production (12) in Business Services

Category: Mediation (3) in Complementary Therapy

Category: Medical & Dental Laboratories (5) in Health Services

Category: Medical Equipment Maintenance & Repairs (5) in Health Supplies

Category: Medical Equipment Rental & Leasing (1) in Health Supplies

Category: Members Of Parliaments (3) in Public Administration

Category: Menswear - Retail (46) in Clothing

Category: Mental Health Centres (7) in Health Services

Category: Metal & Metalwork (156) in Industry & Manufacturing

Category: Metal Finishing Services (4) in Metal & Metalwork

Category: Metal Industries - Primary (2) in Metal & Metalwork

Category: Metal Products - Fabricated (3) in Metal & Metalwork

Category: Metal Spinners (1) in Metal & Metalwork

Category: Metal Workers (5) in Metal & Metalwork

Category: Metals - Mining (1) in Metal & Metalwork

Category: Mezzanine Flooring (1) in Building Materials

Category: Microfilming Services (5) in Media

Category: Microwave Ovens (2) in Electrical Goods

Category: Military Equipment Dealers (2) in Wholesale & Distribution

Category: Mini Buses - Hire & Leasing (3) in Transport

Category: Mini Cabs (34) in Transport

Category: Mirrors & Decorative Glass (2) in Glass

Category: Mobile Homes (11) in Accommodation

Category: Mobile Phones (55) in Specialist Shops

Category: Mobility Equipment (3) in Health Supplies

Category: Model Makers (6) in Hobbies

Category: Model Shops (11) in Specialist Shops

Category: Modelling Agencies (3) in Jobs & Recruitment

Category: Monumental Masons (5) in Stone & Masonary

Category: Mortgage Brokers (61) in Finance & Legal

Category: Mortgages - Direct (2) in Finance & Legal

Category: Mot Testing Centres (42) in Service Centres

Category: Motor Caravan Dealers (3) in Caravans & Motorhomes

Category: Motor Cycle Parts & Accessories (9) in Vehicle Parts

Category: Motor Cycles & Scooters (33) in Vehicle Sales

Category: Motor Cycling Instruction & Testing (1) in Testing Centres

Category: Motor Factors (24) in Accessories

Category: Motor Sports (9) in Clubs & Associations

Category: Motoring (1170) in Business Finder

Category: Motoring Organisations (1) in Motoring

Category: Moving Home (671) in Home & Garden

Category: Multimedia & Electronic Book Publishers (3) in Publishing

Category: Museums (3) in Days Out

Category: Mushroom Growers & Packers (1) in Food & Drink Makers

Category: Music (5) in Entertainment

Category: Music Management & Promotion (6) in Agencies & Services

Category: Music Publishers (5) in Agencies & Services

Category: Music Schools (8) in Specialist Education

Category: Music Shops (7) in Specialist Shops

Category: Music Teachers (8) in Specialist Education

Category: Musical Instrument Repairs & Servicing (3) in Entertainment

Category: Musical Instruments & Sheet Music (11) in Specialist Shops

Category: Musicians & Composers (5) in Music