#1Masonhub, Inc
Based in Fontana, CA
Contract Drug Manufacturers in Fontana, CA
The top-ranked contract drug manufacturers serving Fontana, CA are Masonhub, Inc, Menasha Packaging Company LLC and United Exchange Corp.. We list 252 contract drug manufacturers serving Fontana, 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 Fontana, CA (San Bernardino County). 252 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 Fontana
#2Menasha Packaging Company LLC
Based in Fontana, CA#3United Exchange Corp.
Serves this area from CA#4Exel Inc. dba DHL Supply Chain (USA)
Serves this area from CA#5Airgas USA, LLC
Serves this area from Rancho Cucamonga, CA (4 mi)#6Amphastar Pharmaceuticals, Inc.
Serves this area from Rancho Cucamonga, CA (5 mi)#7US Drugs, Inc.
Serves this area from Rancho Cucamonga, CA (6 mi)#8Nippon Sanso Matheson, Inc.
Serves this area from Rancho Cucamonga, CA (6 mi)#9US Merchants Inc.
Serves this area from Eastvale, CA (8 mi)#10CTWS, LLC dba CALIFORNIA TOOL & WELDING SUPPLY
Serves this area from Riverside, CA (9 mi)
20 more providers serving this area
- UPS Supply Chain Solutions, Inc., Jurupa Valley, CA (9 mi)
- Cardinal Health 414, LLC, Colton, CA (10 mi)
- Diamond Respiratory Care, Inc., Riverside, CA (10 mi)
- Respiratory Medical Services, Riverside, CA (10 mi)
- PLZ Corp, Riverside, CA (11 mi)
- SG Homecare, Inc., San Bernardino, CA (11 mi)
- Verio Healthcare, Inc., Riverside, CA (11 mi)
- Pouches, Inc., Ontario, CA (11 mi)
- AMF Pharma LLC, Ontario, CA (11 mi)
- Teamwork Packaging, Inc., San Bernardino, CA (11 mi)
- Apria Healthcare LLC, CA
- Innovatical Laboratories LLC, Montclair, CA (13 mi)
- Biochem Scientific Laboratory LLC, Upland, CA (14 mi)
- Diamond Wipes International, Inc., Chino, CA (16 mi)
- Airgas USA, LLC, Pomona, CA (16 mi)
- Paklab, Chino, CA (16 mi)
- CTK OTC Laboratories, LLC, Corona, CA (16 mi)
- Arminak Solutions LLC, Corona, CA (17 mi)
- Bimeda Pomona Inc., Pomona, CA (17 mi)
- BioPharmaDev, Inc., Corona, CA (17 mi)
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Frequently asked questions
How many contract drug manufacturers serve Fontana?
We list 252 contract drug manufacturers serving Fontana, CA: 2 based there and 250 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 Fontana?
The top-ranked contract drug manufacturers serving Fontana, CA are Masonhub, Inc, Menasha Packaging Company LLC, United Exchange Corp., Exel Inc. dba DHL Supply Chain (USA) and Airgas USA, LLC. The full ranked list, with the official records each provider matched, is on this page.
Which contract drug manufacturers serving Fontana are verified against official records?
10 of the top 10 match an active official record: Masonhub, Inc (U.S. Food and Drug Administration), Menasha Packaging Company LLC (U.S. Food and Drug Administration), United Exchange Corp. (U.S. Food and Drug Administration), Exel Inc. dba DHL Supply Chain (USA) (U.S. Food and Drug Administration) and Airgas USA, LLC (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 .