| Association of New Brunswick Health Centres Inc. | — | 638420 | — | Dissolved | |
| Association of New Brunswick Licensed Practical Nurses / l’Association des infirmières et infirmiers auxiliaires autorisés du Nouveau-Brunswick | — | 856 | — | Active | |
| Association of New Brunswick Massage Therapists Inc. Association néo-brunswickoise de massothérapeutes inc. | — | 24542 | — | Active | |
| Association of Professional Archaeologists of New Brunswick Ltd. Association des archéologues professionnels du Nouveau-Brunswick Ltee | — | 669985 | — | Dissolved | |
| Association of Professional Engineers and Geoscientists of New Brunswick Association des ingénieurs et des géoscientifiques du Nouveau-Brunswick | — | 23701 | — | Active | |
| Association of Rural New Brunswick Inc. / Association Rurale du Nouveau-Brunswick (ARNB) Inc. | — | 725649 | — | Active | |
| Association of Sign Language Interpreters of New Brunswick Inc. | — | 25473 | — | Active | |
| Association pour le bien-être intergénérationnel de Cap-Acadie Inc. | — | 765741 | — | Active | |
| Association régionale de la communauté francophone de Saint-Jean inc. | — | 22293 | — | Active | |
| Association Érable Acadie | — | 675391 | — | Dissolved | |
| Association Étudiante de l'École de Psychologie de l'Université de Moncton Inc. | — | 641060 | — | Dissolved | |
| Association Étudiante de la Faculté des Sciences de l'Université de Moncton Inc. | — | 633447 | — | Active | |
| Association Étudiante des Arts du Centre Universitaire de Moncton Inc. | — | 650738 | — | Dissolved | |
| Association Étudiante du Collège communautaire du Nouveau-Brunswick - Campus de Campbellton Inc. | — | 641628 | — | Active | |
| Association Étudiante du collège communautaire d`Edmundston Inc. | — | 637801 | — | Active | |
| Association étudiante de l'Université de Moncton, campus de Shippagan Inc. | — | 654468 | — | Active | |
| Association étudiante de la Faculté des sciences de la santé et des services communautaires Inc. | — | 652776 | — | Dissolved | |
| Association étudiante du Collège communautaire du Nouveau-Brunswick, campus de la Péninsule Acadienne Inc. | — | 616836 | — | Active | |
| Associazione Italiana di Moncton NB Inc. | — | 895 | — | Active | |
| Assurance A.G. Albert Insurance | — | 345889 | — | Dissolved | |
| Assurance A.M. Breau Insurance | — | 345881 | — | Active | |
| Assurance B. Belliveau Insurance | — | 746274 | — | Active | |
| Assurance Baie des Chaleurs Insurance | — | 650123 | — | Dissolved | |
| Assurance Beausejour Gaudet Insurance | — | 629178 | — | Dissolved | |
| Assurance Beauséjour Insurance Ltée. - Assurance Beauséjour Insurance Ltd. | — | 667552 | — | Merged | |
| Assurance Beneva | — | 745386 | — | Active | |
| Assurance Economical | — | 759382 | — | Active | |
| Assurance Frédéric Morin Insurance Inc. | — | 627664 | — | Dissolved | |
| Assurance Gisèle Basque Insurance Inc. | — | 606371 | — | Dissolved | |
| Assurance Goguen Champlain Insurance | — | 669764 | — | Dissolved | |
| Assurance Goguen Champlain Insurance | — | 680648 | — | Active | |
| Assurance Goguen Champlain Insurance Inc. | — | 619526 | — | Dissolved | |
| Assurance Goguen Champlain Insurance, a division of Bell and Grant Insurance Limited | — | 666211 | — | Dissolved | |
| Assurance Générale Acadie / Acadia General Insurance | — | 624837 | — | Active | |
| Assurance House and Building Inspections | — | 707671 | — | Dissolved | |
| Assurance House and Building Inspections Inc. | — | 718721 | — | Active | |
| Assurance Huestis | — | 728575 | — | Active | |
| Assurance Huestis | — | 650125 | — | Dissolved | |
| Assurance Lionheart inc. | — | 768539 | — | Active | |
| Assurance Manuel | — | 718200 | — | Dissolved | |
| Assurance Manuel Ltee | — | 604717 | — | Dissolved | |
| Assurance Nathalie Bowser Insurance Inc. | — | 635228 | — | Dissolved | |
| Assurance Palladium Insurance | — | 691519 | — | Dissolved | |
| Assurance Pierre Thibodeau | — | 650909 | — | Dissolved | |
| Assurance Prestige Insurance | — | 710774 | — | Active | |
| Assurance Restoration Inc. | — | 659605 | — | Dissolved | |
| Assurance Scotia | — | 717617 | — | Active | |
| Assurance Solidia Insurance | — | 645345 | — | Dissolved | |
| Assurance Supreme/Supreme Insurance | — | 638637 | — | Dissolved | |
| Assurance Suprême Ltée / Supreme Insurance Ltd. | — | 622931 | — | Dissolved | |
| Assurance Sylvio Leclerc Inc. | — | 641245 | — | Active | |
| Assurance Tweedie & Brunswick Insurance | — | 603192 | — | Dissolved | |
| Assurance Tweedie & Brunswick Insurance | — | 610725 | — | Dissolved | |
| Assurance Vie Marcel Pinet Life Insurance Inc. | — | 504477 | — | Merged | |
| Assurance Vie Wanda Pinet Life Insurance Inc. | — | 667557 | — | Merged | |
| Assurance de l'Anse | — | 349235 | — | Dissolved | |
| AssuranceVisiteurs.ca | — | 760676 | — | Active | |
| Assurances Beaupré Insurance | — | 742870 | — | Active | |
| Assurances Générales Acadie Inc./Acadia General Insurance Inc. | — | 621514 | — | Merged | |
| Assurances Générales Acadie Inc./Acadia General Insurance Inc. | — | 667452 | — | Active | |
| Assurances Jacques Savoie Insurance Inc. | — | 666747 | — | Active | |
| Assurances LMB Inc. | — | 760803 | — | Active | |
| Assurances Michel Frenette Insurance Inc. | — | 516093 | — | Merged | |
| Assurances NMC Insurance Inc. | — | 671353 | — | Active | |
| Assurances Palladium Insurance | — | 694194 | — | Dissolved | |
| Assurances Sylvie Léger & Associés Inc. | — | 691018 | — | Active | |
| Assurant Membership Services, Inc. | — | 77741 | — | Dissolved | |
| Assurant Services Canada Inc./Services Assurant Canada Inc. | — | 624342 | — | Merged | |
| Assure Away | — | 766363 | — | Active | |
| Assure Away | — | 760674 | — | Active | |
| Assure Care | — | 639186 | — | Dissolved | |
| Assure Care Pedorthics Inc. | — | 638992 | — | Dissolved | |
| Assure Home Check Services | — | 710355 | — | Dissolved | |
| Astaka Developments Ltd. | — | 646546 | — | Dissolved | |
| Astellas Pharma Canada, Inc. | — | 73626 | — | Active | |
| Aster Commercial Cleaning | — | 768538 | — | Active | |
| Aster Consulting Inc. | — | 742097 | — | Active | |
| Aster Foot Care | — | 676650 | — | Dissolved | |
| Aster Foundation Inc. | — | 693937 | — | Active | |
| Aster Holistic Care | — | 683147 | — | Dissolved | |
| Asteria Dance Inc. | — | 765536 | — | Active | |
| Asterias Consulting Ltd. | — | 640150 | — | Active | |
| Astero Trading Limited | — | 650856 | — | Dissolved | |
| Asteroid 1 Technologies Inc. | — | 717385 | — | Dissolved | |
| Astle Enterprises Ltd. | — | 760528 | — | Active | |
| Astle Family Foundation Ltd. | — | 780014 | — | Active | |
| Astle Logging Inc. | — | 626592 | — | Dissolved | |
| Astle Painting | — | 736418 | — | Active | |
| Astoco Investments Ltd. | — | 640715 | — | Dissolved | |
| Aston Hill Asset Management Inc. | — | 660982 | — | Merged | |
| Aston Hill Asset Management Inc. | — | 662079 | — | Merged | |
| Aston Hill Energy 2014 FT LP | — | 679500 | — | Dissolved | |
| Aston Hill Energy 2014 GP Inc. | — | 679501 | — | Dissolved | |
| Aston Hill MW GP Inc. | — | 661257 | — | Merged | |
| Astoria Consulting Inc. | — | 704342 | — | Dissolved | |
| Astra Computers | — | 346462 | — | Dissolved | |
| Astra Investments LP | — | 708337 | — | Dissolved | |
| AstraZeneca | — | 347027 | — | Dissolved | |
| AstraZeneca Pharma | — | 347028 | — | Dissolved | |
| Astraea Holdings Inc. | — | 755769 | — | Active | |
| Astral Being Holistics | — | 672854 | — | Dissolved | |
| Astrelis LP | — | 765829 | — | Active | |
| Astro Builders | — | 749026 | — | Active | |
| Astro Cleaning & Painting | — | 347584 | — | Dissolved | |
| Astro Enterprises Inc. | — | 679289 | — | Dissolved | |
| Astro Holdings Limited | — | 632754 | — | Dissolved | |
| Astro Painting Ltd. | — | 516269 | — | Dissolved | |
| Astro Transfers Ltd. | — | 752669 | — | Pending | |
| Astro Transit International Limited | — | 634726 | — | Dissolved | |
| Astroid Electric Inc. | — | 651727 | — | Dissolved | |
| Astrolabe Health Inc. | — | 722814 | — | Active | |
| Astrologica Consulting | — | 726111 | — | Active | |
| Astrological Systems | — | 710145 | — | Active | |
| Astromic Solutions Inc. | — | 772007 | — | Active | |
| Astron Creative Studio | — | 779390 | — | Active | |
| Astrowood Manufacturing | — | 615974 | — | Dissolved | |
| Astute Innovations - Data Analytics & Data Science Consulting Services | — | 754210 | — | Active | |
| Astutesoft Technologies | — | 689712 | — | Dissolved | |
| Asurion Canada Services Corporation | — | 664630 | — | Active | |
| Asurion Canada, Inc. | — | 674372 | — | Active | |
| Asurion Consumer Solutions of Canada Corp. | — | 674371 | — | Active | |
| Asurion UBIF Canada Franchise Inc. | — | 732044 | — | Dissolved | |
| Asymetric Renovations | — | 662252 | — | Dissolved | |
| At Bat Sports | — | 633755 | — | Dissolved | |
| At Ease Bees | — | 764978 | — | Active | |
| At Home Cleaning Services | — | 630448 | — | Dissolved | |
| At Home Physio | — | 637341 | — | Dissolved | |
| At Home Video | — | 639436 | — | Dissolved | |
| At Last Holdings Limited | — | 655040 | — | Active | |
| At Netty's Place Childcare Inc. | — | 746540 | — | Active | |
| At The Pumps Inc. | — | 606812 | — | Dissolved | |
| At Your Convenience Store | — | 600857 | — | Dissolved | |
| At Your Disposal Canadian Division | — | 753742 | — | Active | |
| At Your Door Handyman Services | — | 728253 | — | Active | |
| At Your Finger Tips-Est.2009 | — | 647693 | — | Dissolved | |
| At Your Own PACE | — | 605294 | — | Dissolved | |
| At Your Service Contract Delivery | — | 698347 | — | Dissolved | |
| At Your Service For Seniors | — | 754153 | — | Active | |
| At Your Service For Seniors | — | 642495 | — | Dissolved | |
| At Your Service Moncton Tasks and Errands | — | 762125 | — | Active | |
| At home PHYSIO à la maison | — | 694214 | — | Dissolved | |
| At the Helm Counselling | — | 774577 | — | Active | |
| At the Park on Grand Lake | — | 680717 | — | Dissolved | |
| At-Pac Scaffold Services Inc. | — | 649362 | — | Dissolved | |
| At8631234.com | — | 658003 | — | Dissolved | |
| AtCan Seafood Exports | — | 711266 | — | Dissolved | |
| AtCan Tower Crane | — | 725871 | — | Dissolved | |
| AtDoorstep Delivery Service | — | 722985 | — | Pending | |
| AtSixty Real Estate Inc. | — | 737305 | — | Active | |
| AtYourStep Services Inc. | — | 739557 | — | Dissolved | |
| Atacama Copper Exploration Limited | — | 705373 | — | Dissolved | |
| Atalangen Enterprise Corporation | — | 678455 | — | Dissolved | |
| Atapaqq Energy Inc. / Atapaqq Energie Inc. | — | 681657 | — | Dissolved | |
| Atcan Distribution Services Ltd. | — | 660304 | — | Active | |
| Atcan Distribution Services Ltd. | — | 609326 | — | Merged | |
| Atcan Self Storage | — | 640348 | — | Active | |
| Atcan Technologies | — | 685236 | — | Dissolved | |
| Atco Ventures Inc. | — | 694799 | — | Active | |
| Atcon Holdings Inc. | — | 610398 | — | Dissolved | |
| Atease Solutions | — | 623018 | — | Dissolved | |
| Ateko | — | 766308 | — | Active | |
| Atelier 1636 Workshop | — | 674286 | — | Active | |
| Atelier 1763 | — | 740930 | — | Active | |
| Atelier 46 Ltée | — | 690774 | — | Active | |
| Atelier DD Shop Auto Esthetics Technician | — | 713456 | — | Active | |
| Atelier DaNo Ltée | — | 674482 | — | Active | |
| Atelier F. R. Robichaud Enr. | — | 646365 | — | Dissolved | |
| Atelier F.R. Robichaud Ltée | — | 672974 | — | Active | |
| Atelier Gauvin | — | 717890 | — | Dissolved | |
| Atelier Imagine & Consulting | — | 666395 | — | Dissolved | |
| Atelier J. Godin | — | 603618 | — | Dissolved | |
| Atelier Josette Mallet | — | 680369 | — | Dissolved | |
| Atelier Kevin Thibodeau | — | 646061 | — | Dissolved | |
| Atelier Marie's Workshop | — | 351904 | — | Dissolved | |
| Atelier Maverick Charm Bar & Accessories | — | 777742 | — | Active | |
| Atelier Nana Couture | — | 726978 | — | Pending | |
| Atelier Savoie / Savoie Custom Woodwork Incorporée | — | 708527 | — | Dissolved | |
| Atelier Tricot & Couture GLR | — | 628590 | — | Dissolved | |
| Atelier Tricot & Couture GLR Inc. | — | 690227 | — | Active | |
| Atelier VioLong | — | 656521 | — | Dissolved | |
| Atelier chez Georges Art Studio | — | 777352 | — | Active | |
| Atelier de Peinture Sophie | — | 351355 | — | Dissolved | |
| Atelier des Falaises | — | 777569 | — | Active | |
| Atelier do rey me & Galerie | — | 347242 | — | Dissolved | |
| Atelier in Bloom Floristry | — | 742671 | — | Active | |
| Ateliers Evolutions Workshops | — | 751024 | — | Active | |
| Atex Properties | — | 667810 | — | Active | |
| Athabasca Management Ltd. | — | 683479 | — | Dissolved | |
| Athabasca Ventures Limited | — | 670464 | — | Dissolved | |
| Athen Contracting Ltd. | — | 717618 | — | Dissolved | |
| Athena Beyond E-Commerce | — | 735987 | — | Active | |
| Athena Beyond Inc. | — | 743604 | — | Dissolved | |
| Athena Designs | — | 623513 | — | Dissolved | |
| Athena Investments LP | — | 710982 | — | Active | |
| Athene North Employment Service Corporation | — | 709690 | — | Active | |
| Athens Spa MOBILE Services | — | 734856 | — | Active | |
| Atherton Trucking Ltd. | — | 687089 | — | Dissolved | |
| Atherton's Business Services Ltd. | — | 617215 | — | Dissolved | |
| Athleen Athletics | — | 727466 | — | Active | |
| Athleta - Athleisure Wear | — | 725538 | — | Active | |