Manufacturers
- A Fitness
- A Nelson & Co Ltd
- A Tighter U
- A&N Performance Laboratory, LLC
- A-Class Co
- A-M B-Well, Inc
- A. Lassonde Inc
- A. Vogel Oy
- A.C. Grace Company
- A.G. Waterhouse
- A.M. Todd Company
- A.M.S.G.
- A.N. Tyler Holdings Ltd
- A.S. Research, LLC
- A1 Supplements
- A1 Top World Products
- AA Project Co. Ltd.
- Aarisse Health Care
- AB Biotics
- AB Combination
- Abattis Bioceuticals Corporation
- ABB Performance, LLC
- Abbey Research
- Abbott
- Abbott Industries
- Abbott Laboratories
- Abbott Nutrition
- Abbvie
- ABC Nutriceuticals, Inc.
- Abdi Ibrahim
- Abinopharm, Inc
- ABJ Custom Packaging
- ABL Pharma
- Aboca S.p.a.
- Aboca USA, Inc
- Abra Therapeutics
- ABS Laboratories
- Absolute Labs
- Absolute Nutrition
- Absolute Weight Loss
- Absonutrix
- Absorb Health
- Absorb Science Inc.
- Abszess Salbe
- Abu Bakar & Osman Trading
- Abundance Marketing
- Abundant Life Wellness
- Acatris
- Accelerated Intelligence
- Accelerated Sport Nutraceuticals LLC
- Accelerative Nutraceuticals LLC
- Accera, Inc.
- Access Business Group LLC
- Accomplix
- Accucaps
- Accurex Health Care Manufacturing Inc.
- ACCUSlim
- ACE Co. Ltd
- Acella Pharmaceuticals LLC
- Aceworkz
- ACH Food Companies Inc
- Ache` Laboratorios Farmaceuticos
- Achievements Through Science
- Acidif Plus, Biohealth S.r.l
- ACME Lifescience
- ACME Wholesale Inc
- Acquired Intelligence Inc
- Actavis Pharma, Inc
- Actavis UK Ltd
- Acti Bile (1987) Inc.
- Action Brands Inc
- Action Labs Inc.
- Actipharm SA
- Activ Nutritional
- Activa Naturals
- Activate Biophysics Corp.
- Activate Supplements, LLC
- Activated You
- Active 8
- Active Liquid Wellness
- Active Nutraceuticals or the Marion Group
- Active Nutrition Corportation (ANC)
- Active Sports Distribution
- ActiveHerb Technology Inc.
- Activex America, Inc.
- ActivStart Nutrition
- Actumus Inc
- Acupuncture & Herbs
- Acure Organics
- Adam's Secret
- Adams Labs Ltd
- Adaptive Health
- Adaptogen Research
- Adaptogen Science
- Adaptogen Synergy Florida Corp.
- Addrena, LLC
- Adeeva Nutritionals Canada Inc
- Adept Nutrition
- Adipex Nutrition
- ADM
- ADM Kao
- Admark Herbals Limited
- Adonis Lifestyle LLC
- Adrem Ltd
- Adrenal Fatigue Institute, Inc (AFI)
- Adrian London
- Advance Pharmaceutical Inc.
- Advance Physician Formulas, Inc.
- Advanced Bio Institute
- Advanced Bionutritionals
- Advanced BioSolutions
- Advanced Cardiac Life Sciences, LLC
- Advanced Genetics
- Advanced Healthcare Distributors, LLC
- Advanced IQ
- Advanced Men's Institute (AMI)
- Advanced Metabolic Research Group
- Advanced Molecular Labs
- Advanced Molecular Labs, LLC
- Advanced Muscle Science
- Advanced Naturals
- Advanced Nutraceutical Sciences Inc.
- Advanced Nutraceuticals, LLC
- Advanced Nutrient Science International - ANSI
- Advanced Nutrition by Zahler
- Advanced Nutrition Systems (ANS)
- Advanced Nutritional Innovations
- Advanced Orthomolecular Research (AOR)
- Advanced Orthomolecular Research USA
- Advanced Performulations
- Advanced Pharmaceutical Research
- Advanced Pharmaceuticals
- Advanced Research
- Advanced Skin & Hair LLC
- Advanced Sport Nutriceuticals
- Advanced Technology Industries, Inc.
- Advanced Trichology
- Advanced Vision Research
- Advanced, LLC
- Advancis Medical
- Advanta Supplements
- Advantage CKN
- Advantage Nutraceuticals LLC
- Advantage Pharmaceuticals
- Advitech Inc.
- Advocare International
- Advocate LifeCare LLC
- Adya Inc
- Aecetia Inc
- Aerobic Life
- AeroDesigns
- Aesculapius
- Aesthetic Labs
- Aether Centre Enterprises
- Afanso Cosmeseuticals
- Afexa Life Sciences
- Affinity Lifestyles
- African Botanicals
- African Mango Plus
- African Mango XT
- AfterDark Supplements LLC
- Agape Health Products
- Age Immune, LLC
- Agel
- Aggressive Labz
- Agile RX LLC
- AGM Foods Pty Ltd.
- Agobi
- AgroLabs, Inc.
- AgroPharm Technologies (a Divison of 1145565 Ontario Ltd)
- AHD International, LLC
- Ahmed's Sun Force International Products Inc.
- AI Sports Nutrition
- Aidan Products, LLC
- Aidance Skincare
- AIDP
- AIDS Healthcare Foundation (AHF)
- Aidus International Enterprise Ltd
- AIE Pharmaceuticals
- AIM USA, Inc.
- Ainsworths
- Aisam Wellness
- Ajinomoto Co., Inc
- Ajinomoto North America, Inc.
- Akasha Naturals
- Akay
- Akay Flavours and Aromatics Pvt Ltd.
- Akeso Health Sciences
- AKL Technologies Ltd.
- Akorn
- AkPharma Inc.
- Akron Pharma
- Akuna Canada Inc
- Alacer Corp
- Alan James Group, LLC.
- Alani Nutrition
- Alaska Protein Recovery LLC
- Alaven Consumer Healthcare Inc
- Alaven Pharmaceutical
- Albert M. O'Connor, M.D.