County Index - Northamptonshire
- 1 Vision DMS Ltd - Northamptonshire - Wellingborough
- 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
- 2112 Marketing Ltd - Northamptonshire - Northampton
- 2D CNC Machinery Ltd - Northamptonshire - Rushden
- 2D CNC Machinery Ltd - Northamptonshire - Rushden
- 2ND Sight & Sound Ltd - Northamptonshire - Northampton
- 3C Test Ltd - Northamptonshire - Towcester
- 3di Consulting Ltd - Northamptonshire - Northampton
- 3E (Uk) Ltd - Northamptonshire - Wellingborough
- 4suretrailers.co.uk - Northamptonshire - Northampton
- 888 Reptiles - Northamptonshire - Daventry
- A & G Toseland Ltd. - Northamptonshire - Kettering
- A & A Building Surveyors Ltd - Northamptonshire - Corby
- 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 & N Engineering Services Ltd. - Northamptonshire - Kettering
- A & N Fabrications - Northamptonshire - Northampton
- A & R Recruitment & Selection - Northamptonshire - Wellingborough
- A A Frost - 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 B L Perpack (1985) Ltd. - Northamptonshire - Kettering
- A B M Datacomms (U K) Ltd. - Northamptonshire - Northampton
- A Baillie Hygiene Co. - Northamptonshire - Kettering
- A C Adam Developments Ltd. - Northamptonshire - Northampton
- A C & V Ltd. - Northamptonshire - Daventry
- A C E Decor - Northamptonshire - Rushden
- A C Furnishing - Northamptonshire - Kettering
- A C K (Haulage) Ltd. - Northamptonshire - Wellingborough
- A D Independant Ltd - Northamptonshire - Wellingborough
- A E Smith & Son(Kettering) Ltd. - Northamptonshire - Kettering
- A G Construction (Midlands) Ltd - Northamptonshire - Corby
- A G D Systems - Northamptonshire - Wellingborough
- A H Allen Steel Services Ltd. - Northamptonshire - Northampton
- A J Brown - Northamptonshire - Kettering
- A J Tear & Co. Ltd - Northamptonshire - Northampton
- A J & G Bament - Northamptonshire - Towcester
- A J Bridewell & Sons - Northamptonshire - Northampton
- A J Osborne Steel Fabrications - Northamptonshire - Towcester
- A J Russell & Son - Northamptonshire - Northampton
- A L & C Thompson - Northamptonshire - Brackley
- A M B Hygiene - Northamptonshire - Corby
- A S C Metals Ltd. - Northamptonshire - Northampton
- A T S Panels Ltd. - Northamptonshire - Corby
- A Tanks Lot - Northamptonshire - Brackley
- A to B Couriers - Northamptonshire - Northampton
- A W Fabrications Ltd. - Northamptonshire - Wellingborough
- A W Fabrications Ltd. - Northamptonshire - Wellingborough
- A Z Valves (U K) Ltd - Northamptonshire - Northampton
- A-Bax Precision Engineering Ltd. - Northamptonshire - Kettering
- A-Lift Crane Hire Ltd. - Northamptonshire - Wellingborough
- A-Plant (Ashtead Plant Hire Co) - Northamptonshire - Northampton
- A-Z Marketing - Northamptonshire - Northampton
- A. M. C. (U.K.) Fasteners Ltd - Northamptonshire - Corby
- A1 Signs Ltd. - Northamptonshire - Rushden
- A14 Supplies - Northamptonshire - Kettering
- A4 Car Leasing - Northamptonshire - Northampton
- A6 Mouldings Ltd - Northamptonshire - Kettering
- Aardvark Computers - Northamptonshire - Northampton
- AB Electrical Engineering Ltd - Northamptonshire - Daventry
- Abbey Board - Northamptonshire - Kettering
- Abbeyross Ltd - Northamptonshire - Northampton
- Abbott Paul J - Northamptonshire - Northampton
- Abbott Signs - Northamptonshire - Northampton
- ABC Macintosh Ltd - Northamptonshire - Corby
- 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
- Abird - Northamptonshire - Kettering
- Abird - Northamptonshire - Kettering
- Abishot Mouldings 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
- Abraxas Pottery - Northamptonshire - Northampton
- Acacia Afton Alliance Ltd - Northamptonshire - Northampton
- Acam Instrumentation Ltd - Northamptonshire - Northampton
- Access Garden Products - Northamptonshire - Northampton
- Access Irrigation Ltd. - Northamptonshire - Northampton
- Access Pacific Ltd - Northamptonshire - Wellingborough
- Accessory Bits Ltd. - Northamptonshire - Wellingborough
- Accommodating Cabins Ltd - Northamptonshire - Kettering
- Accuma Plastics Ltd. - Northamptonshire - Corby
- Accurate Disc Duplication - Northamptonshire - Northampton
- Accuride International Ltd. - Northamptonshire - Northampton
- Ace Furniture - Northamptonshire - Corby
- ACE Gearboxes Ltd - Northamptonshire - Northampton
- Ace Minimix (Northampton) - Northamptonshire - Northampton
- Ace Mobile Welding Services - Northamptonshire - Daventry
- Ace Skips - Northamptonshire - Northampton
- Ackerman SEO - Northamptonshire - Wellingborough
- Acme Neon - Northamptonshire - Northampton
- Acme Portable Machines (U K ) Ltd. - Northamptonshire - Daventry
- 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
- Active Designs - Northamptonshire - Towcester
- Active Independent Marketing - Northamptonshire - Northampton
- Active Recruitment Academy Ltd - Northamptonshire - Corby
- Activity Domain Ltd - Northamptonshire - Kettering
- Actreg (U K ) Ltd. - 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
- Adecco (Daventry) - Northamptonshire - Daventry
- ADEPT Pure Water Ltd - Northamptonshire - Wellingborough
- Adhesive Applications - Northamptonshire - Wellingborough
- Adhesive Metering (Rockingham) Systems Ltd - Northamptonshire - Kettering
- Adkins John W - Northamptonshire - Wellingborough
- Adkris Independant Surveyors - Northamptonshire - Northampton
- Adlogo Ltd. - Northamptonshire - Northampton
- Admiral Design and Print Ltd - Northamptonshire - Wellingborough
- Admor Civil Engineering Ltd. - Northamptonshire - Kettering
- ADS 2 Brands Ltd - Northamptonshire - Kettering
- Advanced Carbon Energy Solutions Ltd - Northamptonshire - Daventry
- Advent Plastics Ltd. - Northamptonshire - Wellingborough
- Adville Ltd. - Northamptonshire - Kettering
- Aes Control Systems Ltd. - Northamptonshire - Northampton
- Afreco Tours Ltd - Northamptonshire - Brackley
- Agathon (UK) Ltd - Northamptonshire - Daventry
- Agency 2000 Ltd (Northampton) (Northampton) - Northamptonshire - Northampton
- Agenta Marketing Ltd. - Northamptonshire - Corby
- Agetur (U K ) Ltd - Northamptonshire - Brackley
- AGM Telematics Ltd - Northamptonshire - Corby
- Agora Services Ltd - Northamptonshire - Kettering
- Agri Energy - Northamptonshire - Northampton
- Agrimac - Northamptonshire - Kettering
- AIMS Accountants for Business - Northamptonshire - Northampton
- Ainsworth & Woodcock Engineering Co. - Northamptonshire - Wellingborough
- Ainsworth and Woodcock Engineering Company - Northamptonshire - Wellingborough
- Air Conditioning and Refrigeration Services - Northamptonshire - Northampton
- Air Conditioning Solutions (Uk) Ltd. - Northamptonshire - Towcester
- Air Liquide Welding Ltd. - Northamptonshire - Daventry
- Air Systems Air Conditioning & Refrigeration Ltd. - Northamptonshire - Rushden
- Aircare Compressor Services Ltd. - Northamptonshire - Corby
- Airchannel Ltd - Northamptonshire - Northampton
- Airframe Ltd - Northamptonshire - Daventry
- AIS Advanced Inspection Services - Northamptonshire - Wellingborough
- Aitchison Rafferty (Northampton) (Northampton) - Northamptonshire - Northampton
- Aj Jones Tipper and Grab Hire - Northamptonshire - Northampton
- Akki Aviation Services Ltd. - Northamptonshire - Brackley
- AKO UK Ltd - Northamptonshire - Daventry
- Alan Litchfield Ltd - Northamptonshire - Kettering
- Alan Whittaker (CPS) Ltd - Northamptonshire - Towcester
- Albany Shed Co Ltd - Northamptonshire - Kettering
- Albion Clearance Services - Northamptonshire - Northampton
- Alco Filters (Uk) Ltd - Northamptonshire - Daventry
- Alde International (Uk) Ltd - Northamptonshire - Wellingborough
- Alden Press Ltd. - Northamptonshire - Northampton
- Alf Tatnell - Northamptonshire - Northampton
- Alfred Underwood Ltd. - Northamptonshire - Northampton
- Alfred W J Sawbridge - Northamptonshire - Towcester
- Algarve Granite - 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 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
- Alma Engineering - Northamptonshire - Daventry
- Almig UK Ltd - Northamptonshire - Northampton
- 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
- Alternative Fuels Europe Ltd - Northamptonshire - Kettering
- Alto Digital UK Ltd - Northamptonshire - Corby
- Alu-Plas Glazing - Northamptonshire - Northampton
- Alumasc Ltd - Northamptonshire - Kettering
- Aluminium Direct Ltd - Northamptonshire - Corby
- Aluminium Openings Ltd. - Northamptonshire - Corby
- Aluminium Shapes Ltd. - Northamptonshire - Corby
- AM Labels Ltd - Northamptonshire - Kettering
- Amandian Ltd - Northamptonshire - Wellingborough
- Amarex Ltd - Northamptonshire - Kettering
- Amazing Bunting - Northamptonshire - Northampton
- Amb Hygiene Ltd. - Northamptonshire - Corby
- Amber Electronics Ltd. - Northamptonshire - Daventry
- Amber Screen & Display 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 (Northampton) (Northampton) - Northamptonshire - Northampton
- Amethyst Recruitment & Consulting - Northamptonshire - Northampton
- Amhurst Designs Ltd. - Northamptonshire - Northampton
- Analytical Sciences Ltd (Corby) (Corby) - Northamptonshire - Corby
- Ancer Spa (Midlands) Ltd - Northamptonshire - Daventry
- Anchor Interior Solutions Ltd. - Northamptonshire - Wellingborough
- Andrew Howard & Partners - Northamptonshire - Northampton
- Andrews Office Equipment - Northamptonshire - Northampton
- Andrews Office Furniture - Northamptonshire - Northampton
- Andromeda Products Ltd. - Northamptonshire - Wellingborough
- Andy Clarkson Ltd - Northamptonshire - Towcester
- Andy Feakin Ltd. - Northamptonshire - Kettering
- Andy's Creative Cakes - Northamptonshire - Brackley
- Angel Pc Services Ltd. - Northamptonshire - Daventry
- Anglair Ltd - Northamptonshire - Northampton
- Anglia Crane & Plant Hire Ltd. - Northamptonshire - Wellingborough
- Anglia Motor Factors Ltd. - Northamptonshire - Kettering
- Anglian Fasteners Ltd - Northamptonshire - Northampton
- Anglian Windows Ltd (Northampton) - Northamptonshire - Northampton
- Angling Centre - Northamptonshire - Northampton
- Anglo Irish Beef Processors - Northamptonshire - Northampton
- Anglo Kitchens - Northamptonshire - Northampton
- Anglo-Turkish International Ltd. - Northamptonshire - Kettering
- Anitox Ltd. - Northamptonshire - Northampton
- Anthony Percival Ltd - Northamptonshire - Wellingborough
- Anthony Rickett Architects Ltd - Northamptonshire - Daventry
- Apex Tv Rental - Northamptonshire - Northampton
- Apg Sourcing Ltd. - Northamptonshire - Kettering
- Apple Marquees Ltd - Northamptonshire - Northampton
- Apple Rochester Gears - Northamptonshire - Wellingborough
- Applied Design & Innovation Ltd - Northamptonshire - Brackley
- Applied Dynamics International Ltd - Northamptonshire - Kettering
- Applied Micro Sciences Ltd. - Northamptonshire - Northampton
- Applied Spring Technology Ltd - Northamptonshire - Northampton
- APS Promotions Ltd - Northamptonshire - Northampton
- Aqua Natural Ltd. - Northamptonshire - Wellingborough
- Aqua-Gas Manufacturing Ltd. - Northamptonshire - Corby
- Aquaflow Fishing Luggage - Northamptonshire - Wellingborough
- Aramat Software Ltd. - Northamptonshire - Kettering
- Arc Design Solutions Ltd - Northamptonshire - Northampton
- Arc It Consultants Ltd - Northamptonshire - Northampton
- ARC Locksmiths - Northamptonshire - Wellingborough
- Arcadian Garden Features Ltd - Northamptonshire - Northampton
- Architectural & Planning Ltd - Northamptonshire - Northampton
- Architectural Ideas - 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
- Arford Enterprises Ltd - Northamptonshire - Kettering
- Argent Chauffeur Services Ltd - Northamptonshire - Rushden
- Argyle Plant Hire Services Ltd - Northamptonshire - Corby
- Aries Pension & Insurance Systems Ltd. - Northamptonshire - Kettering
- Armour Fabrications - Northamptonshire - Wellingborough
- Armstrong Optical Ltd - Northamptonshire - Northampton
- Army Careers Information Office (Northampton) (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
- Arthur Spriggs & Sons Ltd. - Northamptonshire - Rushden
- Artillus Illuminating Solutions Ltd - Northamptonshire - Northampton
- Artisan Signs - Northamptonshire - Kettering
- Artisan Tools Ltd. - Northamptonshire - Corby
- 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
- Ashton Court Group Ltd - Northamptonshire - Northampton
- ASK Metals Ltd - Northamptonshire - Northampton
- ASL Holdings Ltd - Northamptonshire - Northampton
- Aspect Exhibitions - Northamptonshire - Northampton
- Aspex Ski & Sunglasses Ltd - Northamptonshire - Northampton
- Aspire Recruitment Group Ltd. - Northamptonshire - Rushden
- Asset Skills - Northamptonshire - Northampton
- Astabridge Ltd. - Northamptonshire - Corby
- Aster International Ltd - Northamptonshire - Brackley
- Aston & Fincher Ltd. - Northamptonshire - Northampton
- Astra Communications - Northamptonshire - Northampton
- Astwell Augers Ltd - Northamptonshire - Kettering
- At Trading Ltd - Northamptonshire - Northampton
- ATE Solutions - Northamptonshire - Northampton
- Atkinson Robert G - Northamptonshire - Northampton
- Atlantechs Ltd - Northamptonshire - Northampton
- Atlas Office Ltd - Northamptonshire - Kettering
- Atmosphere Air Conditioning and Ventilation Ltd. - Northamptonshire - Wellingborough
- Atom Cutting Systems UK Ltd - Northamptonshire - Rushden
- Atoz Tek Ltd - Northamptonshire - Northampton
- Attic Ladder Installations - Northamptonshire - Kettering
- Atwell Ltd. - Northamptonshire - Northampton
- Audiotel (U K) Ltd - Northamptonshire - Corby
- Audiotel International Ltd. - Northamptonshire - Corby
- Augusta Developments Ltd - Northamptonshire - Northampton
- Aum E C Ltd. - Northamptonshire - Northampton
- Aurora Computer Services Ltd - Northamptonshire - Northampton
- Aurora Leap - Northamptonshire - Northampton
- Auto Turned Products (Northants) Ltd. - Northamptonshire - Northampton
- Autonest Ltd. - Northamptonshire - Kettering
- Autopaint International (Northampton) - Northamptonshire - Northampton
- Autopress Education Ltd. - Northamptonshire - Northampton
- AVA Alarms - 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
- Avus Consulting Ltd - Northamptonshire - Corby
- Axess International Ltd. - Northamptonshire - Daventry
- Axis Automatic Entrance Systems Ltd - Northamptonshire - Northampton
- Ayres & Gardner - Northamptonshire - Northampton
- Ayrshire Metal Products (Daventry) Ltd. - Northamptonshire - Daventry
- Ayrshire Metal Products (Daventry) Ltd. - Northamptonshire - Daventry
- Aztec Composites Ltd. - Northamptonshire - Northampton
- Aztec Consultants Ltd. - Northamptonshire - Towcester
- B Franks - Northamptonshire - Kettering
- B & E Engineering Services - Northamptonshire - Northampton
- B & S Steel Supply Ltd - Northamptonshire - Wellingborough
- B - Tech International Ltd. - Northamptonshire - Daventry
- B A International Ltd - Northamptonshire - Northampton
- B and V Effluent Services Ltd - 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 D (Corby) Ltd. - Northamptonshire - Corby
- B G Commercials Ltd. - Northamptonshire - Corby
- B H Brawn & Co. Ltd. - Northamptonshire - Wellingborough
- B H S Cutting Formes Ltd. - Northamptonshire - Rushden
- B I Engineering Ltd - Northamptonshire - Wellingborough
- B M D Chart Sounds Co. Ltd - Northamptonshire - Wellingborough
- B M W (Home Improvements) Ltd. - Northamptonshire - Rushden
- B Mawby - Northamptonshire - Northampton
- B O C Gases (Corby) (Corby) - Northamptonshire - Corby
- B R Osborne & Son - Northamptonshire - Towcester
- B S Shrive - Northamptonshire - Kettering
- B S Steelshops - Northamptonshire - Wellingborough
- B Secure Locksmiths - Northamptonshire - Kettering
- B T M Consultants - Northamptonshire - Northampton
- 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
- BA Components Ltd - Northamptonshire - Wellingborough
- Babbington (U K ) 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
- Baileys Skip Hire Ltd. - Northamptonshire - Corby
- Baines Racing - Northamptonshire - Towcester
- Bakemar Briars - Northamptonshire - Towcester
- Baker Thompson (Daventry) Ltd. - Northamptonshire - Daventry
- Ball & Young Ltd - Northamptonshire - Corby
- Bam Plant Ltd. - Northamptonshire - Wellingborough
- Bambino Mio - Northamptonshire - Northampton
- Banbury Rewinds Ltd. - Northamptonshire - Brackley
- Bankruptcy365 - Northamptonshire - Northampton
- Banner Contracting Ltd - Northamptonshire - Northampton
- Banquet Chocolates - Northamptonshire - Corby
- Barker Shoes Ltd. - Northamptonshire - Northampton
- Barkers Shoes (Sales) Ltd. - Northamptonshire - Northampton
- Barnes Noble Edwards Ltd. - Northamptonshire - Kettering
- Barratt Northampton Ltd - Northamptonshire - Northampton
- Barry Howard Homes (Developments) Ltd - Northamptonshire - Northampton