Peptide supplier rankings 2026
Peptide CDMOs, manufacturers and research suppliers ranked by score. The score measures how much of a company's identity and quality documentation could be checked. It is not a product guarantee. See how scoring works. Sponsored placement does not affect this ranking. Updated 2026-11-13.
Top peptide CDMOs
| # | Company | Country | Score | Evidence |
|---|---|---|---|---|
| 1 | Apicore LLC (RK Pharma) CDMO | United States | 98 | Regulator GMP · US DMFs (6) |
| 2 | Aspen Oss B.V. (Aspen API) CDMO | Netherlands | 98 | Regulator GMP · US DMFs (4) · Listed company |
| 3 | Asymchem Life Science (Tianjin) Co., Ltd CDMO | China | 98 | Regulator GMP · US DMFs (2) · Listed company |
| 4 | Auro Peptides Ltd CDMO | India | 98 | Regulator GMP · US DMFs (15) · Listed company |
| 5 | BCN Peptides SA CDMO | Spain | 98 | Regulator GMP · US DMFs (10) |
| 6 | Chinese Peptide Company (CPC Scientific) CDMO | China | 98 | Regulator GMP · US DMFs (3) · Listed company |
| 7 | Chunghwa Chemical Synthesis & Biotech Co., Ltd. (Cenra API Solutions) CDMO | Taiwan | 98 | Regulator GMP · US DMFs (4) · Listed company |
| 8 | Gland Pharma Ltd CDMO | India | 98 | Regulator GMP · US DMFs (2) · Listed company |
| 9 | HLB Pep Co., Ltd. (formerly Anygen Co., Ltd.) CDMO | South Korea | 98 | Regulator GMP · US DMFs (1) · Listed company |
| 10 | JSC Grindeks CDMO | Latvia | 98 | Regulator GMP · US DMFs (1) |
| 11 | MSN Life Sciences Private Ltd (MSN Group) CDMO | India | 98 | Regulator GMP · US DMFs (13) |
| 12 | Piramal Pharma Ltd (Piramal Pharma Solutions) CDMO | India | 98 | Regulator GMP · US DMFs (9) · Listed company |
| 13 | Richter-Helm BioTec GmbH & Co. KG (Richter BioLogics) CDMO | Germany | 98 | Regulator GMP · US DMFs (1) · Listed company |
| 14 | Shilpa Pharma Lifesciences Ltd CDMO | India | 98 | Regulator GMP · US DMFs (4) · Listed company |
| 15 | Sichuan Huiyu Pharmaceutical Co., Ltd. CDMO | China | 98 | Regulator GMP · US DMFs (2) · Listed company |
| 16 | Sinopep-Allsino Biopharmaceutical Co., Ltd. CDMO | China | 98 | Regulator GMP · US DMFs (10) · Listed company |
| 17 | TAPI NL B.V. (TAPI) CDMO | Netherlands | 98 | Regulator GMP · US DMFs (13) · Listed company |
| 18 | Almac Group CDMO | United Kingdom | 95 | Regulator GMP |
| 19 | AmbioPharm CDMO | United States | 95 | Regulator GMP · US DMFs (9) |
| 20 | Bachem Holding AG CDMO | Switzerland | 95 | Regulator GMP · US DMFs (15) · Listed company |
| 21 | CBL Patras CDMO | Greece | 95 | Regulator GMP · US DMFs (1) |
| 22 | EUROAPI CDMO | France | 95 | Regulator GMP · Listed company |
| 23 | Lonza (Peptides) CDMO | Switzerland | 95 | Regulator GMP · Listed company |
| 24 | Neuland Laboratories CDMO | India | 95 | Regulator GMP · US DMFs (1) · Listed company |
| 25 | PolyPeptide Group CDMO | Switzerland | 95 | Regulator GMP · US DMFs (12) · Listed company |
Top peptide API and research peptide manufacturers
| # | Company | Country | Score | Evidence |
|---|---|---|---|---|
| 1 | Alembic Pharmaceuticals Ltd Manufacturer | India | 98 | Regulator GMP · US DMFs (6) · Listed company |
| 2 | Biocon Ltd Manufacturer | India | 98 | Regulator GMP · US DMFs (4) · Listed company |
| 3 | Changzhou Pharmaceutical Factory (CPF) Manufacturer | China | 98 | Regulator GMP · US DMFs (2) |
| 4 | FDC Limited Manufacturer | India | 98 | Regulator GMP · US DMFs (1) · Listed company |
| 5 | Yangzhou Aurisco Pharmaceutical Co., Ltd. (Aurisco) Manufacturer | China | 98 | Regulator GMP · US DMFs (2) |
| 6 | Hybio Pharmaceutical Manufacturer | China | 95 | Regulator GMP · US DMFs (18) · Listed company |
| 7 | Kaneka Eurogentec S.A. Manufacturer | Belgium | 95 | Regulator GMP · Listed company |
| 8 | ALP Pharm Beijing Co., Ltd. Manufacturer | China | 90 | US DMFs (13) |
| 9 | Amneal Pharmaceuticals LLC Manufacturer | United States | 90 | US DMFs (1) · Listed company |
| 10 | Amphastar Nanjing Pharmaceuticals Inc (ANP) Manufacturer | China | 90 | US DMFs (1) · Listed company |
| 11 | AnaSpec Manufacturer | United States | 90 | Listed company |
| 12 | Bio-Synthesis Inc Manufacturer | United States | 90 | – |
| 13 | Biophore India Pharmaceuticals Pvt Ltd Manufacturer | India | 90 | Regulator GMP · US DMFs (5) |
| 14 | Chemi S.p.A. Manufacturer | Italy | 90 | US DMFs (2) |
| 15 | Chongqing Chen'an Biopharmaceutical Co., Ltd Manufacturer | China | 90 | US DMFs (2) · Listed company |
| 16 | GenScript Manufacturer | United States | 90 | Listed company |
| 17 | Hangzhou Jiuyuan Gene Engineering Co., Ltd Manufacturer | China | 90 | US DMFs (1) · Listed company |
| 18 | Hangzhou Zhongmei Huadong Pharmaceutical Co., Ltd Manufacturer | China | 90 | US DMFs (2) · Listed company |
| 19 | Jiangsu Hansoh Pharmaceutical Group Co., Ltd Manufacturer | China | 90 | US DMFs (5) · Listed company |
| 20 | Peptide Institute, Inc. Manufacturer | Japan | 90 | – |
| 21 | peptides & elephants GmbH Manufacturer | Germany | 90 | – |
| 22 | Peptron Inc. Manufacturer | South Korea | 90 | Listed company |
| 23 | PSL Peptide Specialty Laboratories GmbH Manufacturer | Germany | 90 | – |
| 24 | Shenzhen Salubris Pharmaceuticals Co., Ltd Manufacturer | China | 90 | US DMFs (1) · Listed company |
| 25 | Thermo Fisher Scientific (Custom Peptide Synthesis) Manufacturer | United States | 90 | Listed company |
Top research peptide suppliers
| # | Company | Country | Score | Evidence |
|---|---|---|---|---|
| 1 | Vertex Labs LLC Retail Research Peptides | United States | 85 | Lab-verifiable COAs · Own-lot COAs |
| 2 | BioInfinity LLC Retail Research Peptides | United States | 80 | Own-lot COAs |
| 3 | Cascade Biosciences LLC dba Cascade Peptide Retail Research Peptides | United States | 80 | Own-lot COAs · Endotoxin/sterility |
| 4 | Life Link Research Retail Research Peptides | United States | 80 | Lab-verifiable COAs · Own-lot COAs · Endotoxin/sterility |
| 5 | Pepti (peptioem.com) Research Supplier | China | 80 | Lab-verifiable COAs · Own-lot COAs |
| 6 | Pure Peptide Labs LLC Retail Research Peptides | United States | 80 | Own-lot COAs · Endotoxin/sterility |
| 7 | ACCUTIDE Research Supply Inc. Retail Research Peptides | Canada | 75 | Endotoxin/sterility |
| 8 | Australian Research Peptides Pty Ltd Retail Research Peptides | Australia | 75 | – |
| 9 | Core Peptides Retail Research Peptides | United States | 75 | Own-lot COAs |
| 10 | Hong Kong Oraviapeptide Biotechnology Co., Ltd. Research Supplier | Hong Kong | 75 | – |
| 11 | Koi Research Labs LLC (Koi Peptides) Retail Research Peptides | United States | 75 | Endotoxin/sterility |
| 12 | Pepper Labs (Global Bio Research Limited) Retail Research Peptides | Hong Kong | 75 | – |
| 13 | POE - Peptides of England Retail Research Peptides | United Kingdom | 75 | – |
| 14 | SeqLine Bio Research Supplier | China | 75 | Own-lot COAs |
| 15 | Verified Vials (RKCKMJ LTD) Retail Research Peptides | United Kingdom | 75 | Endotoxin/sterility |
| 16 | Xcel Research LLC (Xcel Peptides) Retail Research Peptides | United States | 75 | – |
| 17 | Amino USA Retail Research Peptides | United States | 70 | – |
| 18 | Ascension Peptides Retail Research Peptides | United States | 70 | – |
| 19 | BioLongevity Labs Retail Research Peptides | United States | 70 | Lab-verifiable COAs · Endotoxin/sterility |
| 20 | Biotech Peptides Retail Research Peptides | United States | 70 | – |
| 21 | Crystal Peptides LTD Retail Research Peptides | Bulgaria | 70 | Lab-verifiable COAs · Endotoxin/sterility |
| 22 | HelixHouse Labs Retail Research Peptides | United States | 70 | – |
| 23 | Kylo Labs LLC (Kylo Peptides) Retail Research Peptides | United States | 70 | Lab-verifiable COAs · Own-lot COAs · Endotoxin/sterility |
| 24 | Limitless Biotech (Limitless Life Nootropics) Retail Research Peptides | United States | 70 | – |
| 25 | Lux BioPure Retail Research Peptides | Canada | 70 | – |
Frequently asked questions
How are peptide suppliers ranked?
By the directory score. Manufacturers and CDMOs reach High with a regulator record of GMP manufacturing or as an established company, and score higher with both and with US Drug Master Files in their own name. Research suppliers gain points for a named legal entity and for own-lot lab reports that the lab can confirm. Open FDA warning letters cap a score at 60.
Can a supplier pay to rank higher?
No. Sponsored placements appear first in the main directory and are labelled, but this ranking uses the score only, and payment never changes a score.
Why do several suppliers share a score?
Scores move in steps of 5 as evidence is confirmed, so ties are common. Ties are listed alphabetically.