County Index - Northamptonshire
- 1PCS Ltd. - Northamptonshire - Kettering
- 1PCS Web Design Ltd - Northamptonshire - Kettering
- 1ST Class Packaging Ltd. - Northamptonshire - Northampton
- 1ST Class Print - Northamptonshire - Northampton
- 1ST Response Supplies - Northamptonshire - Northampton
- 1ST Tool Hire - Northamptonshire - Kettering
- 20/30 Labs Ltd - Northamptonshire - Northampton
- 2112 Marketing Ltd - Northamptonshire - Northampton
- 2D CNC Machinery Ltd - Northamptonshire - Rushden
- 2nd Sight & Sound Ltd - Northamptonshire - Northampton
- 3663 First for Food Service (Northampton) - Northamptonshire - Northampton
- 3C Test Ltd - Northamptonshire - Towcester
- 3e (Uk) Ltd - Northamptonshire - Wellingborough
- 3i Fm Ltd - Northamptonshire - Northampton
- 3i Studio Ltd - Northamptonshire - Northampton
- 3i Surveys Ltd - Northamptonshire - Northampton
- 3m Uk Trading Ltd - Northamptonshire - Daventry
- 3rd Eye Solutions Ltd - Northamptonshire - Wellingborough
- 4 Locals Ltd - Northamptonshire - Corby
- 4armed Ltd - Northamptonshire - Kettering
- 4suretrailers.co.uk - Northamptonshire - Northampton
- 888 Reptiles - Northamptonshire - Daventry
- 99P Store - Northamptonshire - Northampton
- A & G Toseland Ltd. - Northamptonshire - Kettering
- A & A Crack & Sons - Northamptonshire - Northampton
- A & A Security - Northamptonshire - Kettering
- A & A Security Locksmiths Ltd - Northamptonshire - Kettering
- A & D Formers Ltd. - Northamptonshire - Northampton
- A & D Restorations Ltd - Northamptonshire - Wellingborough
- A & G Conservatories Ltd - Northamptonshire - Northampton
- A & I Plastics Ltd. - Northamptonshire - Brackley
- A & J Sectional Buildings Ltd. - Northamptonshire - Wellingborough
- A & L Paving Ltd - Northamptonshire - Northampton
- A & N Engineering Services Ltd. - Northamptonshire - Kettering
- A & N Fabrications - Northamptonshire - Northampton
- A & R Recruitment & Selection - Northamptonshire - Wellingborough
- A 1 Mini Skips - Northamptonshire - Northampton
- A 1 Rubbish Clearance Service - Northamptonshire - Northampton
- A A Groom & Son - Northamptonshire - Wellingborough
- A A H Home Improvements & Restoration Ltd - Northamptonshire - Kettering
- A A V Builders Ltd. - Northamptonshire - Daventry
- A and I Transport Solutions - Northamptonshire - Northampton
- A and R Marketing Ltd - Northamptonshire - Northampton
- A Aston - Northamptonshire - Corby
- A B M Datacomms (U K) Ltd. - Northamptonshire - Northampton
- A B Machinery - Northamptonshire - Towcester
- A Baillie Hygiene Co - Northamptonshire - Kettering
- A Better Label Ltd - Northamptonshire - Kettering
- A C & V Ltd. - Northamptonshire - Daventry
- A C A Blinds - Northamptonshire - Northampton
- A C E Decor - Northamptonshire - Rushden
- A C Furnishing - Northamptonshire - Kettering
- A C K (Haulage) Ltd. - Northamptonshire - Wellingborough
- A D Engineering Design Ltd - Northamptonshire - Northampton
- A D V Communications Ltd - Northamptonshire - Kettering
- A Day - Northamptonshire - Daventry
- A Day Recycling Group Ltd - Northamptonshire - Northampton
- A E Smith & Son(Kettering) Ltd. - Northamptonshire - Kettering
- A G Bennett - Northamptonshire - Northampton
- A G D Systems - Northamptonshire - Wellingborough
- A G Sign & Display - Northamptonshire - Wellingborough
- A H Allen Steel Services Ltd. - Northamptonshire - Northampton
- A J Tear & Co. Ltd - Northamptonshire - Northampton
- A J & G Bament - Northamptonshire - Towcester
- A J A Computer Services - Northamptonshire - Kettering
- A J Bridewell & Sons - Northamptonshire - Northampton
- A J Canopies Ltd - Northamptonshire - Daventry
- A J Osborne Steel Fabrications - Northamptonshire - Towcester
- A J Plants - Northamptonshire - Wellingborough
- A J Russell & Son - Northamptonshire - Northampton
- A L & C Thompson - Northamptonshire - Brackley
- A M B Hygiene - Northamptonshire - Corby
- A P S Gas Showroom - Northamptonshire - Kettering
- A R Barnett - Northamptonshire - Northampton
- A Rossi and Partners - Northamptonshire - Kettering
- A S Associates Electrical Services - Northamptonshire - Towcester
- A S C Metals Ltd. - Northamptonshire - Northampton
- A T S Wholesale - Northamptonshire - Northampton
- A Tanks Lot - Northamptonshire - Brackley
- A V A Alarms - Northamptonshire - Northampton
- A W Fabrications Ltd. - Northamptonshire - Wellingborough
- A W Fabrications Ltd. - Northamptonshire - Wellingborough
- A W B Print Consultancy - Northamptonshire - Northampton
- A W Duncombe & Son - Northamptonshire - Brackley
- A W Fuller Groundworks Ltd - Northamptonshire - Rushden
- A Z Valves (U K) Ltd - Northamptonshire - Northampton
- A&S Systems Ltd - Northamptonshire - Northampton
- A-Bax Precision Engineering Ltd. - Northamptonshire - Kettering
- A-Lift Crane Hire Ltd - Northamptonshire - Wellingborough
- A-Z Marketing - Northamptonshire - Northampton
- A. M. C. (U.K.) Fasteners Ltd - Northamptonshire - Corby
- A.V.P. Ltd - Northamptonshire - Corby
- A1 Move It - Northamptonshire - Kettering
- A1 Signs Ltd. - Northamptonshire - Rushden
- A14 Supplies - Northamptonshire - Kettering
- A4 Car Leasing - Northamptonshire - Northampton
- A6 Mouldings Ltd - Northamptonshire - Kettering
- Aaron Tawny Mortgages Ltd - Northamptonshire - Kettering
- Ab Electrical Engineering (Rugby) Ltd - Northamptonshire - Daventry
- AB Electrical Engineering Ltd - Northamptonshire - Daventry
- Abbey Board - Northamptonshire - Kettering
- Abbey Ross Chartered Surveyors - Northamptonshire - Northampton
- Abbeyross Ltd - Northamptonshire - Northampton
- Abbott Paul J - Northamptonshire - Northampton
- Abbott Signs - Northamptonshire - Northampton
- ABC Macintosh Ltd - Northamptonshire - Corby
- Abel Skip Hire - Northamptonshire - Northampton
- Abel Skip Hire - Northamptonshire - Northampton
- ABG Rubber and Plastics Ltd - Northamptonshire - Northampton
- Ability Training Ltd - Northamptonshire - Wellingborough
- Abington Business Systems - Northamptonshire - Northampton
- Abington Castle Hire - Northamptonshire - Northampton
- Abington Decorating Supplies Ltd - Northamptonshire - Northampton
- Abington Piano Services - Northamptonshire - Wellingborough
- Abington Square General Store - Northamptonshire - Northampton
- Abird - Northamptonshire - Kettering
- Abird - Northamptonshire - Kettering
- Abishot Mouldings Ltd. - Northamptonshire - Kettering
- ABL Perpack (1985) Ltd - Northamptonshire - Kettering
- Able Computer Sales & Service - Northamptonshire - Daventry
- Able Luxury Cars - Northamptonshire - Kettering
- Able-Direct Centre Ltd. - Northamptonshire - Northampton
- Ablehire - Northamptonshire - Rushden
- Abraqsys Business Systems Ltd. - Northamptonshire - Northampton
- Abraxa Staff Ltd - Northamptonshire - Daventry
- Abraxas Cookshop - Northamptonshire - Northampton
- Abundance One Training Your Coaches Ltd - Northamptonshire - Northampton
- Acam Instrumentation Ltd - Northamptonshire - Northampton
- Acam Music Ltd - Northamptonshire - Northampton
- Acams - Northamptonshire - Northampton
- Access Garden Products - Northamptonshire - Northampton
- Access Irrigation Ltd - Northamptonshire - Northampton
- Access Pacific Ltd - Northamptonshire - Wellingborough
- Accessory Bits Ltd. - Northamptonshire - Wellingborough
- Accidental Repair Technicians Ltd - Northamptonshire - Northampton
- Accommodating Cabins Ltd - Northamptonshire - Kettering
- Accounting by Computer - Northamptonshire - Brackley
- Accsys Business Consultants Ltd - Northamptonshire - Rushden
- Accuma Plastics Ltd. - Northamptonshire - Corby
- Accurate Disc Duplication - Northamptonshire - Northampton
- Accuride International Ltd. - Northamptonshire - Northampton
- Ace Appointments Midlands Ltd - Northamptonshire - Northampton
- Ace Furniture - Northamptonshire - Corby
- ACE Gearboxes Ltd - Northamptonshire - Northampton
- Ace Mini Skips Ltd - Northamptonshire - Northampton
- Ace Mobile Welding Services - Northamptonshire - Daventry
- Acer Business Support Ltd - Northamptonshire - Towcester
- Ackerman SEO - Northamptonshire - Wellingborough
- Acm Fencing Ltd - Northamptonshire - Northampton
- Acme Neon - Northamptonshire - Northampton
- Acme Portable Machines (U K ) Ltd. - Northamptonshire - Daventry
- Acorn Alarms - Northamptonshire - Northampton
- Acorn Comms - Northamptonshire - Wellingborough
- Acrylic Fabrications Ltd - Northamptonshire - Corby
- ACS Office Solutions - Northamptonshire - Northampton
- ACS Window Treatments - Northamptonshire - Towcester
- Action Rehab - Northamptonshire - Rushden
- Action Technical Services Ltd. - Northamptonshire - Kettering
- Activ Web Design - Northamptonshire - Northampton
- Activ Web Design - Northamptonshire - Kettering
- Activ Web Design Kettering & Corby - Northamptonshire - Kettering
- Active Designs - Northamptonshire - Towcester
- Active Independent Marketing - Northamptonshire - Northampton
- Active Recruitment Academy Ltd - Northamptonshire - Corby
- Active Support Service Ltd - Northamptonshire - Kettering
- Activity Domain Ltd - Northamptonshire - Kettering
- Actreg (U K ) Ltd. - Northamptonshire - Kettering
- Acuity Design - Northamptonshire - Kettering
- Acwellsyke Spring Water Ltd. - Northamptonshire - Kettering
- Adams John P - Northamptonshire - Daventry
- Adapt Recruitment Services Ltd - Northamptonshire - Daventry
- Adapt Training & Development Ltd. - Northamptonshire - Northampton
- Adaptive It Solutions Ltd - Northamptonshire - Northampton
- Adcock Refrigeration & Air Conditioning Ltd. - Northamptonshire - Northampton
- Addamark - Northamptonshire - Wellingborough
- Adelphi Corporation Ltd - Northamptonshire - Rushden
- ADEPT Pure Water Ltd - Northamptonshire - Wellingborough
- Adhesive Applications - Northamptonshire - Wellingborough
- Adhesive Metering (Rockingham) Systems Ltd - Northamptonshire - Kettering
- Adile Consultancy - Northamptonshire - Rushden
- Adkins John W - Northamptonshire - Wellingborough
- ADKRIS Asbestos Consultants - Northamptonshire - Northampton
- Adkris Independant Surveyors - Northamptonshire - Northampton
- Adlogo Ltd. - Northamptonshire - Northampton
- Adm (Automotive & Diesel Modifications) Ltd - Northamptonshire - Rushden
- Admiral Design and Print Ltd - Northamptonshire - Wellingborough
- Admor Civil Engineering Ltd. - Northamptonshire - Kettering
- Adrian's Autos Ltd - Northamptonshire - Northampton
- Advanced Carbon Energy Solutions Ltd - Northamptonshire - Daventry
- Advanced Drivers Solutions Ltd - Northamptonshire - Wellingborough
- Advanced People Strategies Ltd - Northamptonshire - Daventry
- Advent Plastics Ltd. - Northamptonshire - Wellingborough
- Adville Battery Servicing - Northamptonshire - Kettering
- Adville Ltd. - Northamptonshire - Kettering
- AEM Products Ltd - Northamptonshire - Rushden
- Aerospace & Automotive Metals Ltd - Northamptonshire - Northampton
- Aes Control Systems Ltd. - Northamptonshire - Northampton
- Afreco Tours Ltd - Northamptonshire - Brackley
- Agathon (UK) Ltd - Northamptonshire - Daventry
- Agenta Marketing Ltd - Northamptonshire - Corby
- AGM Telematics Ltd - Northamptonshire - Corby
- Agora Services Ltd - Northamptonshire - Kettering
- Agri Energy - Northamptonshire - Northampton
- Agrimac - Northamptonshire - Kettering
- Ailsa Trade - Northamptonshire - Northampton
- AIMS Accountants for Business - Northamptonshire - Northampton
- Ainsworth & Woodcock Eng Co - Northamptonshire - Wellingborough
- Ainsworth and Woodcock Engineering Company - Northamptonshire - Wellingborough
- Air Con Services (UK) Ltd - Northamptonshire - Towcester
- Air Conditioning and Refrigeration Services - Northamptonshire - Northampton
- Air Conditioning Solutions (Uk) Ltd. - Northamptonshire - Towcester
- Air Liquide Welding Ltd. - Northamptonshire - Daventry
- Air Pressure Test Uk Ltd - Northamptonshire - Northampton
- Air Systems Air Conditioning & Refrigeration Ltd. - Northamptonshire - Rushden
- Aircare Compressor Services Ltd. - Northamptonshire - Corby
- Airchannel Ltd - Northamptonshire - Northampton
- Airframe Ltd - Northamptonshire - Daventry
- Airmasters - Northamptonshire - Northampton
- Airwair International Ltd - Northamptonshire - Wellingborough
- AIS Advanced Inspection Services - Northamptonshire - Wellingborough
- Aj Jones Tipper and Grab Hire - Northamptonshire - Northampton
- AJRC Ltd - Northamptonshire - Brackley
- Akki Aviation Services Ltd. - Northamptonshire - Brackley
- AKO UK Ltd - Northamptonshire - Daventry
- Alan Day-Business Management Support - Northamptonshire - Daventry
- Alan Litchfield Ltd - Northamptonshire - Kettering
- Alan Whittaker (CPS) Ltd - Northamptonshire - Towcester
- Albany Associates - Northamptonshire - Corby
- Albany Electrical Services Ltd - Northamptonshire - Corby
- Albany Shed Co Ltd - Northamptonshire - Kettering
- Albion Clearance Services - Northamptonshire - Northampton
- Alco Filters (Uk) Ltd - Northamptonshire - Daventry
- Alden Press Ltd. - Northamptonshire - Northampton
- Alf Tatnell - Northamptonshire - Northampton
- Alfred W J Sawbridge - Northamptonshire - Towcester
- Algarve Granite Ltd - Northamptonshire - Northampton
- Algarve Granite Ltd. - Northamptonshire - Northampton
- Alimak Hek Ltd - Northamptonshire - Rushden
- All Conveyor Rollers - Northamptonshire - Corby
- All Food Hygiene - Northamptonshire - Northampton
- All Scrap Cars Northampton - Northamptonshire - Northampton
- All Scrap Cars Northampton - Northamptonshire - Northampton
- All Tube Engineering - Northamptonshire - Daventry
- Allbrite Cleaning Services Ltd - Northamptonshire - Corby
- Allen (Concrete) Ltd. - Northamptonshire - Wellingborough
- Allen Lyman Office Equipment Ltd. - Northamptonshire - Northampton
- Allens Motor Services (Wellingborough) Ltd. - Northamptonshire - Wellingborough
- Alliance Recruitment Ltd - Northamptonshire - Northampton
- Allied Healthcare Uk - Northamptonshire - Northampton
- Allied Images Ltd - Northamptonshire - Northampton
- Allison Printers - Northamptonshire - Wellingborough
- Allison Transmission - Northamptonshire - Northampton
- Allmac Engineering Ltd - Northamptonshire - Corby
- Allprint - Northamptonshire - Northampton
- Allweld Engineering - Northamptonshire - Brackley
- Alma Engineering - Northamptonshire - Daventry
- Alman Engineering Ltd - Northamptonshire - Wellingborough
- Almig UK Ltd - Northamptonshire - Northampton
- Almond Tree Strategic Consulting Ltd - Northamptonshire - Wellingborough
- Almurad Birmingham - Northamptonshire - Northampton
- Aloha Landscapes - Northamptonshire - Towcester
- Alpha (See) Ltd - Northamptonshire - Corby
- Alpha Health & Safety - Northamptonshire - Corby
- Alpha Pallets - Northamptonshire - Northampton
- Alpha Specialist Contracting Ltd - Northamptonshire - Daventry
- Alpha-Cure Ltd. - Northamptonshire - Daventry
- Alphacast Software Ltd - Northamptonshire - Northampton
- Alpro (U K) Ltd. - Northamptonshire - Kettering
- Als Ltd. - Northamptonshire - Wellingborough
- Alti`S Catering Ltd - Northamptonshire - Northampton
- Alto Digital UK Ltd - Northamptonshire - Corby
- Alu-Plas Glazing - Northamptonshire - Northampton
- Alumasc Ltd - Northamptonshire - Kettering
- Aluminium Direct Ltd - Northamptonshire - Corby
- Aluminium Shapes - Northamptonshire - Corby
- AM Labels Ltd - Northamptonshire - Kettering
- Amazing Bunting - Northamptonshire - Northampton
- Amb Hygiene Ltd. - Northamptonshire - Corby
- Amber Electronics Ltd - Northamptonshire - Daventry
- Amber Screen & Display Ltd. - Northamptonshire - Northampton
- Ambient Energy Ltd - Northamptonshire - Northampton
- Ambivent Facilities Management Ltd - Northamptonshire - Northampton
- Ambivent Ltd - Northamptonshire - Northampton
- Ambivent Ltd - Northamptonshire - Northampton
- Ambuco (2000) Ltd. - Northamptonshire - Wellingborough
- Amc Computer Supplies Ltd - Northamptonshire - Kettering
- Amega Sciences Plc - Northamptonshire - Daventry
- American Golf (Menston) (Northampton) - Northamptonshire - Northampton
- Amethyst Recruitment & Consulting - Northamptonshire - Northampton
- Amhurst Designs Ltd. - Northamptonshire - Northampton
- Ancer Spa (Midlands) Ltd - Northamptonshire - Daventry
- Anchor Interior Solutions Ltd. - Northamptonshire - Wellingborough
- Andrea Fowkes Associates - Northamptonshire - Kettering
- Andrew Howard & Partners - Northamptonshire - Northampton
- Andrewbaileyconsulting Ltd - Northamptonshire - Towcester
- Andrews Millard - Northamptonshire - Kettering
- Andrews Office Equipment - Northamptonshire - Northampton
- Andrews Office Furniture - Northamptonshire - Northampton
- Andromeda Products Ltd. - Northamptonshire - Wellingborough
- Andy Bass Composites Ltd - Northamptonshire - Brackley
- Andy's Creative Cakes - Northamptonshire - Brackley
- Angels Memorials - Northamptonshire - Corby
- Anglia Crane & Plant Hire Ltd. - Northamptonshire - Wellingborough
- Anglia Motor Factors Ltd. - Northamptonshire - Kettering
- Anglia Textiles Ltd - Northamptonshire - Northampton
- Anglian Fasteners Ltd - Northamptonshire - Northampton
- Angling Centre - Northamptonshire - Northampton
- Anglo European Timber Ltd - Northamptonshire - Northampton
- Anglo Kitchens - Northamptonshire - Northampton
- Anglo Nordic Times (Ant) - Northamptonshire - Northampton
- Anglo-Irish Furniture Co - Northamptonshire - Northampton
- Anitox Ltd. - Northamptonshire - Northampton
- Annamar Associates - Northamptonshire - Corby
- Anne Jury Associates - Northamptonshire - Towcester
- Anthony Percival Ltd - Northamptonshire - Wellingborough
- Anthony Shemilt - Northamptonshire - Kettering
- Apg Sourcing Ltd. - Northamptonshire - Kettering
- Apna Cash & Carry - Northamptonshire - Northampton
- Apple Hygiene Services - Northamptonshire - Daventry
- Apple Rochester Gears - Northamptonshire - Wellingborough
- Applied Dynamics International Ltd - Northamptonshire - Kettering
- Applied Micro Sciences Ltd. - Northamptonshire - Northampton
- Applied Spring Technology Ltd - Northamptonshire - Northampton
- Aqua Marketing Services - Northamptonshire - Northampton
- Aqua Natural Ltd. - Northamptonshire - Wellingborough
- Aqua-Gas Manufacturing Ltd. - Northamptonshire - Corby
- Aquafabs Ltd - Northamptonshire - Northampton
- Aquaflames (Mk) Ltd - Northamptonshire - Towcester
- Aramat Software Ltd. - Northamptonshire - Kettering
- Arc It Consultants Ltd - Northamptonshire - Northampton
- ARC Locksmiths - Northamptonshire - Wellingborough
- Arc Locksmiths Wellingborough - Northamptonshire - Wellingborough
- Arc Machines (UK) Ltd - Northamptonshire - Daventry
- Arc Motorsports - Northamptonshire - Towcester
- Arcadian Garden Features Ltd - Northamptonshire - Northampton
- Archade Ltd - Northamptonshire - Wellingborough
- Archem Prs Ltd - Northamptonshire - Northampton
- Architectural & Planning Ltd - Northamptonshire - Northampton
- Architectural Metal Craftsmen Ltd - Northamptonshire - Wellingborough
- Archive Attic Ltd. - Northamptonshire - Northampton
- Arco Ltd - Northampton - Northamptonshire - Northampton
- Arcteck Designs Ltd. - Northamptonshire - Northampton
- Arctic Products Ltd. - Northamptonshire - Corby
- Aretha Burdett - Northamptonshire - Northampton
- Arford Enterprises Ltd - Northamptonshire - Kettering
- Aries Pension & Insurance Systems Ltd. - Northamptonshire - Kettering
- Ark Health & Safety Consultants Ltd - Northamptonshire - Northampton
- Armour Fabrications - Northamptonshire - Wellingborough
- Armstrong Optical Ltd - Northamptonshire - Northampton
- Army Careers Information Office (Northampton) - Northamptonshire - Northampton
- Arnold (Hose) Ltd - Northamptonshire - Northampton
- Arnold Giles & Associates - Northamptonshire - Corby
- Arnold Plastics - Northamptonshire - Northampton
- Arnott Conveyors Ltd - Northamptonshire - Northampton
- Arnott Group - Northamptonshire - Northampton
- Arnott Handling Equipment Ltd. - Northamptonshire - Northampton
- Arolite Ltd - Northamptonshire - Wellingborough
- Arrive in Style - Northamptonshire - Northampton
- Arron Door Services Ltd - Northamptonshire - Kettering
- Arrowquint Ltd - Northamptonshire - Wellingborough
- Art & Soul - Northamptonshire - Kettering
- Art Equipment - Northamptonshire - Northampton
- Artatac Design - Northamptonshire - Northampton
- Artillus Illuminating Solutions Ltd - Northamptonshire - Northampton
- Artisan Signs - Northamptonshire - Kettering
- Artisans Footwear Ltd. - Northamptonshire - Rushden
- Ascensys Recruitment Consultancy Ltd - Northamptonshire - Northampton
- Asgi Systems Ltd - Northamptonshire - Corby
- Ash Recruitment - Northamptonshire - Northampton
- Ashbourne Pharmaceuticals Ltd - Northamptonshire - Northampton
- Ashbury Chocolates Ltd. - Northamptonshire - Corby
- Ashby Computer Service - Northamptonshire - Northampton
- Ashby Computer Services Ltd - Northamptonshire - Northampton
- Ashby Robert Associates - Northamptonshire - Kettering
- Ashcroft Cash & Carry - Northamptonshire - Northampton
- Ashley Amos Woodworking Machinery - Northamptonshire - Northampton
- Ashmac Construction Ltd - Northamptonshire - Northampton
- Ashton Court Group Ltd - Northamptonshire - Northampton
- Ashton Pumps Ltd - Northamptonshire - Wellingborough
- Asian Sourcing Link Uk Ltd - Northamptonshire - Brackley
- ASK Metals Ltd - Northamptonshire - Northampton
- ASL Holdings Ltd - Northamptonshire - Northampton
- Aspect Design - Northamptonshire - Towcester
- Aspect Exhibitions - Northamptonshire - Northampton
- Aspex Ski & Sunglasses Ltd - Northamptonshire - Northampton
- Aspire Recruitment Group Ltd - Northamptonshire - Rushden
- Asset Automaton - Northamptonshire - Daventry
- Asset Skills - Northamptonshire - Northampton
- Astabridge Ltd. - Northamptonshire - Corby
- Astech Networking Ltd - Northamptonshire - Daventry
- Aston Fincher (Northampton) - Northamptonshire - Northampton
- Astra Communications - Northamptonshire - Northampton
- Astral Computers - Northamptonshire - Daventry
- Astro Access Services - Northamptonshire - Northampton
- Astro Tech Computers - Northamptonshire - Northampton
- Astwell Augers Ltd - Northamptonshire - Kettering
- At Trading Ltd - Northamptonshire - Northampton
- ATE Solutions - Northamptonshire - Northampton
- Athene Bindery - Northamptonshire - Brackley
- Atkinson Robert G - Northamptonshire - Northampton
- Atlantechs Ltd - Northamptonshire - Northampton
- Atlas Office Ltd - Northamptonshire - Kettering
- Atoz Tek Ltd - Northamptonshire - Northampton
- Attend-A-Lock - Northamptonshire - Wellingborough
- Attic Ladder Installations - Northamptonshire - Kettering
- Atwell Ltd. - Northamptonshire - Northampton
- Aubade Paris Uk Ltd - Northamptonshire - Towcester
- Audiotel International Ltd. - Northamptonshire - Corby
- Augusta Developments Ltd - Northamptonshire - Northampton
- Aum E C Ltd. - Northamptonshire - Northampton
- Aurora Computer Services Ltd - Northamptonshire - Northampton
- Auto Acoustics - Northamptonshire - Northampton
- Auto Marine Systems - Northamptonshire - Towcester
- Auto Spares & Salvage - Northamptonshire - Northampton
- Auto Turned Products (Northants) Ltd. - Northamptonshire - Northampton
- Autogas Experts Uk Ltd - Northamptonshire - Corby
- Automation Technology Ltd - Northamptonshire - Daventry
- Automotive Cooling Services - Northamptonshire - Northampton
- Autonest Ltd. - Northamptonshire - Kettering
- AVA Alarms - Northamptonshire - Northampton
- Avail Ltd - Northamptonshire - Corby
- Avalon Airconditioning Ltd - Northamptonshire - Kettering
- Avenue Gates Ltd - Northamptonshire - Northampton
- Avery Dennison Office Products Manufacturing U K Ltd. - Northamptonshire - Wellingborough
- Avnow - Northamptonshire - Northampton
- Avon Cosmetics - Northamptonshire - Corby
- Avon Cosmetics - Northamptonshire - Corby
- Avon Cosmetics Ltd. - Northamptonshire - Northampton
- Avon Fashions (Uk) Ltd - Northamptonshire - Northampton
- Avonbury Business Park Management Co Ltd - Northamptonshire - Brackley
- Avus Consulting Ltd - Northamptonshire - Corby
- Axess International Ltd. - Northamptonshire - Daventry
- Axis Automatic Entrance Systems Ltd - Northamptonshire - Northampton
- Ayrshire Metal Products (Daventry) Ltd. - Northamptonshire - Daventry
- Ayrshire Metal Products (Daventry) Ltd. - Northamptonshire - Daventry
- Ayrshire Steel Framing Ltd - Northamptonshire - Daventry
- Azaria Ltd - Northamptonshire - Northampton
- Aztec Composites Ltd. - Northamptonshire - Northampton
- B & B Coates - Northamptonshire - Brackley
- B & B Crane Hire - Northamptonshire - Northampton
- B & E Engineering Services - Northamptonshire - Northampton
- B & S Steel Supply Ltd - Northamptonshire - Wellingborough
- B & S Supplies - Northamptonshire - Northampton
- B - Tech International Ltd. - Northamptonshire - Daventry
- B and V Effluent Services - Northamptonshire - Daventry
- B and V Water Treatment - Northamptonshire - Daventry
- B B H Hydraulics - Northamptonshire - Wellingborough
- B C Technology Ltd. - Northamptonshire - Wellingborough
- B D International Marketing - Northamptonshire - Daventry
- B D Technical Polymer Ltd - Northamptonshire - Corby
- B E & B G Letts - Northamptonshire - Wellingborough
- B E White - Northamptonshire - Rushden
- B G Commercials Ltd. - Northamptonshire - Corby
- B H Brawn & Co. Ltd. - Northamptonshire - Wellingborough
- B H S Cutting Formes Ltd. - Northamptonshire - Rushden
- B J Clayton - Northamptonshire - Northampton
- B J M Milles Leathers - Northamptonshire - Northampton
- B M H Scaffolding Ltd - Northamptonshire - Northampton
- B M Sewing Machines - Northamptonshire - Kettering
- B M W (Home Improvements) Ltd. - Northamptonshire - Rushden
- B Mawby - Northamptonshire - Northampton
- B Pickering - Northamptonshire - Corby
- B R D - Northamptonshire - Wellingborough
- B R Osborne & Son - Northamptonshire - Towcester
- B S A (Kettering) Ltd - Northamptonshire - Kettering
- B S Quality Consultancy - Northamptonshire - Wellingborough
- B S Shrive - Northamptonshire - Kettering
- B S Steelshops - Northamptonshire - Wellingborough
- B Secure Locksmiths - Northamptonshire - Kettering
- B T Morris & Son - Northamptonshire - Northampton
- B W Attfield - Northamptonshire - Kettering
- B Wise Business Finance Consultants - Northamptonshire - Kettering
- B&E Engineering Services Ltd. - Northamptonshire - Wellingborough
- B. Line Plant Ltd - Northamptonshire - Daventry
- B.E.D. (Corby) Ltd - Northamptonshire - Corby
- BA Components Ltd - Northamptonshire - Wellingborough
- Baca Safety Ltd - Northamptonshire - Northampton
- Baca Safety Supplies & Workware - Northamptonshire - Northampton
- Baconinflate (Uk) Ltd. - Northamptonshire - Northampton
- Badgers Sett Co Ltd - Northamptonshire - Kettering
- Bae Systems Advanced Technology Centre - Northamptonshire - Towcester
- Bagforce - Northamptonshire - Brackley
- Bags Direct Ltd - Northamptonshire - Northampton
- Baileys Skip Hire & Recycling Ltd - Northamptonshire - Corby
- Baileys Skip Hire (Northampton) Ltd - Northamptonshire - Northampton
- Baines Racing - Northamptonshire - Towcester
- Bainswear - Northamptonshire - Northampton
- Bakemar Briars - Northamptonshire - Towcester
- Baker Thompson (Daventry) Ltd. - Northamptonshire - Daventry
- Ball & Young Ltd - Northamptonshire - Corby
- Ballgowns - Northamptonshire - Northampton
- Bam Plant Ltd. - Northamptonshire - Wellingborough
- Bambino Mio - Northamptonshire - Northampton