#1 Kdc/one Socal Laboratories, LLC
Serves this area from Diamond Bar, CA (3 mi)
Contract Drug Manufacturers in Walnut, CA
The top-ranked contract drug manufacturers serving Walnut, CA are Kdc/one Socal Laboratories, LLC, Ethical Nutritional, LLC and KC Pharmaceuticals, Inc.. We list 242 contract drug manufacturers serving Walnut, CA. 30 of the providers shown match an active record from U.S. Food and Drug Administration, checked on the date shown. Rankings follow our published methodology; sponsored placements never change rank.
Contract Drug Manufacturers serving Walnut, CA (Los Angeles County). 242 providers, 10 of the top 10 verified against federal or state records. Registry records checked on 2026-11-04.
Top 10 ranked contract drug manufacturers for Walnut
#2 Ethical Nutritional, LLC
Serves this area from Pomona, CA (3 mi)Call (909) 598-1010#3 KC Pharmaceuticals, Inc.
Serves this area from Pomona, CA (3 mi)Call (909) 598-9499 · Website#4 Ecolab Inc.
Serves this area from Industry, CA (4 mi)Call (800) 352-5326 · Website#5 GVS TM, Inc
Serves this area from Covina, CA (5 mi)#6 Prostat First Aid, LLC
Serves this area from La Verne, CA (6 mi)#7 Super Care, LLC
Serves this area from Industry, CA (6 mi)Call (626) 854-2273 · Website#8 Gilead Sciences, Inc.
Serves this area from La Verne, CA (6 mi)Call (909) 596-6138#9 Life Gene Pharma Group, LLC
Serves this area from Hacienda Heights, CA (6 mi)#10 Westwood Laboratories, LLC.
Serves this area from Irwindale, CA (7 mi)Call (626) 610-1200 · Website
20 more providers serving this area
- OASIS Medical, Inc., Glendora, CA (7 mi)
- Nippon Sanso Matheson, Inc., Irwindale, CA (7 mi)
- Norman, Fox & Co., Industry, CA (7 mi)
- Bimeda Pomona Inc., Pomona, CA (7 mi)
- S&B Pharma LLC dba Norac Pharma, Azusa, CA (7 mi)
- Beachwood Medical Supply, Inc., Baldwin Park, CA (7 mi)
- Airgas USA, LLC, Pomona, CA (7 mi)
- Messer LLC, Industry, CA (8 mi)
- Yb Chemia LLC, Irwindale, CA (8 mi)
- American Regent, Inc., Brea, CA (8 mi)
- Life Science Outsourcing, Inc., Brea, CA (8 mi)
- Grifols Biologicals LLC, Industry, CA (8 mi)
- Humex,Inc., Brea, CA (8 mi)
- StemCyte, Inc., Baldwin Park, CA (8 mi)
- Exquisite Corporation, Baldwin Park, CA (8 mi)
- Clinical Resolution Laboratory, Inc., Brea, CA (9 mi)
- Diamond Wipes International, Inc., Chino, CA (9 mi)
- Beckman Research Institute of City of Hope, Duarte, CA (9 mi)
- Ambiance Cosmetics, Inc, Irwindale, CA (10 mi)
- Paklab, Chino, CA (10 mi)
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Frequently asked questions
How many contract drug manufacturers serve Walnut?
We list 242 contract drug manufacturers serving Walnut, CA: 0 based there and 242 serving it from nearby. 10 of the top 10 match an active federal or state record, checked on 2026-11-04.
Which contract drug manufacturers serve Walnut?
The top-ranked contract drug manufacturers serving Walnut, CA are Kdc/one Socal Laboratories, LLC, Ethical Nutritional, LLC, KC Pharmaceuticals, Inc., Ecolab Inc. and GVS TM, Inc. The full ranked list, with the official records each provider matched, is on this page.
Which contract drug manufacturers serving Walnut are verified against official records?
10 of the top 10 match an active official record: Kdc/one Socal Laboratories, LLC (U.S. Food and Drug Administration), Ethical Nutritional, LLC (U.S. Food and Drug Administration), KC Pharmaceuticals, Inc. (U.S. Food and Drug Administration), Ecolab Inc. (U.S. Food and Drug Administration) and GVS TM, Inc (U.S. Food and Drug Administration), and 5 more on this page. Each badge links to the official record it matched.
How are these companies ranked?
By our published methodology: verified registrations, documented capabilities, years registered and responsiveness. Sponsored placements are shown separately and never affect rank.
What does "Verified" mean on this page?
"Verified" means we matched the provider to an active official record on the date shown; each badge links to that record. The absence of a badge only means we have not verified that item.
What does FDA establishment registration show?
Facilities that manufacture, prepare or process drugs for the U.S. market must register with FDA every year and list their operations. Registration is not an FDA approval of the facility or its products.
"Verified" means we matched the provider to an active official record on the date shown. The absence of a badge only means we have not verified that item. How we rank and verify. Page updated .