Contract Drug Manufacturers & Packagers Directory

Contract Drug Manufacturers in Orange County, CA

The top-ranked contract drug manufacturers serving Orange County, CA are 503 Neo Lab LLC, Aaron Thomas Company Inc and Access Business Group LLC. We list 296 contract drug manufacturers serving Orange County, 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 Orange County, CA. 296 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 Orange County

20 more providers serving this area

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Frequently asked questions

How many contract drug manufacturers serve Orange County?

We list 296 contract drug manufacturers serving Orange County, CA: 63 based there and 233 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 Orange County?

The top-ranked contract drug manufacturers serving Orange County, CA are 503 Neo Lab LLC, Aaron Thomas Company Inc, Access Business Group LLC, ACTA Laboratories Inc and Advanced Pharmaceutical Services, Inc. Dba Affordable Quality Pharmaceuticals. The full ranked list, with the official records each provider matched, is on this page.

Which contract drug manufacturers serving Orange County are verified against official records?

10 of the top 10 match an active official record: 503 Neo Lab LLC (U.S. Food and Drug Administration), Aaron Thomas Company Inc (U.S. Food and Drug Administration), Access Business Group LLC (U.S. Food and Drug Administration), ACTA Laboratories Inc (U.S. Food and Drug Administration) and Advanced Pharmaceutical Services, Inc. Dba Affordable Quality Pharmaceuticals (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 .

Cities in Orange County

Communities served

Seal Beach, Laguna Beach, Laguna Woods, La Palma, Coto de Caza, Los Alamitos, Rossmoor, Rancho Mission Viejo, Midway City, Las Flores, Villa Park, Trabuco Canyon, Silverado, Modjeska, Williams Canyon, El Modena, Orange Park Acres