Which contract manufacturers in the U.S. and India supply small supplement brands and publish verifiable GMP/ISO/organic certificates?

Checked on January 31, 2026
Disclaimer: Factually can make mistakes. Please verify important information or breaking news. Learn more.

Executive summary

GMP Laboratories of America, Willings Nutraceutical, Advanced Supplements, Bactolac and several larger global CMOs (e.g., Lonza/ENZ/TCA networks) operate in the United States and publish verifiable GMP/ISO/organic credentials or claim third‑party registrations that small brands commonly use [1] [2] [3] [4] [5]. In India, firms frequently cited by sourcing guides—Vidya Herbs, Tanishq Life Care, Nutralike and other listed contract manufacturers—advertise GMP, ISO, FSSAI/WHO‑GMP and USDA Organic credentials that enable export to regulated markets, but verification is necessary because industry reporting stresses differences between “GMP compliant” and independently “GMP certified” and warns of fraudulent documents [6] [7] [8] [9].

1. U.S. contract manufacturers that small supplement brands use and their published credentials

Several U.S. CMOs openly market to startups and small brands with explicit certification claims: GMP Laboratories of America states NSF GMP for Sport registration and USDA Organic certification across its Anaheim facilities [1], Willings Nutraceutical reports NSF GMP registration and FDA‑registered facilities [2], and Advanced Supplements promotes FDA registration and GMP compliance [3]. Bactolac publicizes GMP certification and the ability to produce USDA‑organic products via recognized certifiers such as QAI, while larger players cited in aggregator lists—Lonza and Catalent among them—offer GMP and ISO credentials though they typically serve larger accounts as well [4] [5]. Industry directories and “best of” roundups (collagensei, wonnda) repeatedly flag these firms as options for private label or contract work and list the key standards buyers should confirm: GMP, ISO (9001/22000), NSF, and organic/USDA certifications [10] [11].

2. Indian contract manufacturers commonly named for exports and certifications

India’s contract landscape is populated by manufacturers that advertise a mix of GMP, ISO 9001/22000, WHO‑GMP, FSSAI and USDA Organic to support exports to the U.S. and EU; sourcing lists highlight Vidya Herbs, Tanishq Life Care, Nutralike and others as “trusted” vendors for herbal and nutraceutical production [6] [7]. These firms often emphasize R&D, cleanroom production, and export compliance with USFDA/EFSA standards to attract small foreign brands, and trade posts present India as attractive for cost and certification breadth—again with the caveat that buyers must check the issuing bodies for each certificate [7] [10].

3. How to interpret “certified” claims and why verification matters

Reporting from industry specialists stresses the critical distinction between being “GMP compliant” and holding third‑party GMP certification from recognized bodies such as NSF, NPA or accredited USDA organic certifiers; mislabeling or providing PDF certificates has been a recurrent problem in the sector and can expose brands to risk [8] [9]. Purensm explicitly warns that some manufacturers show PDFs or warehouse‑only certificates that don’t equate to true manufacturing GMP certification, and SuperiorSupplementMfg underscores that independent verification (checking with NSF, NPA, USDA or the certifier’s public registry) is the reliable path [9] [8].

4. Practical next steps for small brands evaluating CMOs

Sourcing guides and aggregator lists recommend a layered approach: confirm the manufacturer’s claimed certificates against the certifier’s online registry, ask for site‑specific documentation (not generic PDFs), review FDA facility registration status, request recent audit reports, and clarify MOQs and formulation support—steps reflected across TCI Biotech’s and Wonnda’s guidance for selecting partners with GMP/ISO/organic credentials [12] [11]. Reported examples and directories indicate that small brands routinely find capable partners among the U.S. firms named above and the Indian manufacturers listed in sourcing roundups, but due diligence on certification authenticity and scope remains the decisive safeguard [1] [6] [7] [10].

Want to dive deeper?
How can a supplement brand verify an NSF, NPA or USDA organic certificate online for a specific contract manufacturer?
What are the documented differences between WHO‑GMP, NSF GMP and FDA facility registration for dietary supplement makers?
Which U.S. and Indian supplement CMOs have been subject to recent regulatory recalls or enforcement actions and what were the cited certification failures?