Supplement Manufacturers in California
91 supplement manufacturers in California have a GMP-certified facility (NSF/ANSI 455-2) or an Informed Manufacturer certified facility; the most are in Anaheim (5), Irvine (5) and Ontario (4). Data checked against the public listings of NSF and Informed Manufacturer, most recently on November 1, 2026.
Every company on this page has at least one manufacturing or packaging facility on a public registry we check (NSF/ANSI 455-2 or Informed Manufacturer). We record the dosage forms each registry lists for a facility, where it is, and the date we last checked the listing, so you can shortlist dietary supplement contract manufacturers on facts before you send a single email.
Request quotes from supplement manufacturers
Free. Tell us what you need and we’ll pass it to matching manufacturers on this list.
First 50 of 91
Order: featured, listings with a website, then A–Z.
Garden Grove, CA, United Statespackaging.com
- Capsules
- Gummies
- Powders
- Softgels
- Tablets
NSF/ANSI 455-2checked Nov 1, 2026Berkeley, CA, United Statesguenergy.com
Operations:- Liquid formulation
NSF/ANSI 455-2checked Nov 1, 2026Chino, CA, United Statesalbertmax.com
- Capsules
- Powders
Operations:- Encapsulation
- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026All Points Manufacturing
USDA OrganicVallejo, CA, United Statesallpointsmfg.com
Informed Manufacturer(not a GMP audit)checked Oct 6, 2026Ontario, CA, United Statesalphaplustech.us
- Capsules
- Gummies
- Liquids
- Oils
- Powders
- Softgels
- +1 more
Operations:- Liquid formulation
- Encapsulation
- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026Rancho Cucamonga, CA, United Statesamaxinutrition.com
- Powders
Operations:- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026Irvine, CA, United Statesamericanbestlife.com
- Capsules
- Tablets
Operations:- Tablet compression
- Encapsulation
- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026- NSF/ANSI 455-2checked Nov 1, 2026
Pico Rivera, CA, United Statesbay-cities.com
- Powders
Operations:- Kitting
NSF/ANSI 455-2checked Nov 1, 2026Brea, CA, United Statesnorthwestpn.com
- Capsules
- Powders
Operations:- Encapsulation
NSF/ANSI 455-2checked Nov 1, 2026Livermore, CA, United Statesproteinresearch.com
- Capsules
- Powders
- Tablets
Operations:- Tablet compression
- Encapsulation
- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026Sun Valley, CA, United Statesbestvite.com
- Capsules
- Tablets
Operations:- Encapsulation
- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026Rosemead, CA, United Statesbfsuma.com
- Capsules
- Powders
Operations:- Encapsulation
NSF/ANSI 455-2checked Nov 1, 2026Captek Softgel International, Inc.
USDA OrganicCerritos, CA, United Statescapteksoftgel.com
- Capsules
- Gummies
- Softgels
- Tablets
Operations:- Molding
- Coating
- Liquid formulation
- Tablet compression
- +2 more
NSF/ANSI 455-2checked Nov 1, 2026Torrance, CA, United Statescatalo.us
- Capsules
- Powders
- Tablets
Operations:- Tablet compression
- Encapsulation
- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026Anaheim, CA, United Statesprotixa.com
- Capsules
- Gummies
- Liquids
Operations:- Liquid formulation
- Encapsulation
- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026Jurupa Valley, CA, United Statesproferrinlabs.com
- Capsules
- Powders
- Tablets
Operations:- Coating
- Tablet compression
- Encapsulation
- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026Vernon, CA, United Statessuperiorsourcevitamins.com
- Powders
- Tablets
Operations:- Molding
- Tablet compression
- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026Paramount, CA, United Statesdlclabs.com
- Capsules
- Liquids
- Oils
- Softgels
Operations:- Liquid formulation
NSF/ANSI 455-2checked Nov 1, 2026Eagleshine Group Inc.
USDA OrganicCorona, CA, United Stateseagleshinegroup.com
- Capsules
- Liquids
- Oils
- Powders
- Softgels
- Tablets
NSF/ANSI 455-2checked Nov 1, 2026Redwood City, CA, United Statesethicalnaturals.com
- Capsules
- Oils
- Powders
Operations:- Encapsulation
- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026Ontario, CA, United Stateseverestpackaging.com
- Capsules
- Powders
Operations:- Encapsulation
NSF/ANSI 455-2checked Nov 1, 2026EW Packaging
USDA OrganicGardena, CA, United Statesewpackaging.com
- Capsules
- Gummies
- Powders
- Softgels
- Tablets
Operations:- Sterilization
- Kitting
- Tablet compression
- Encapsulation
- +1 more
NSF/ANSI 455-2checked Nov 1, 2026Excelsior Nutrition Inc DBA 4Excelsior
USDA OrganicAnaheim, CA, United States4excelsior.com
- Capsules
- Gummies
- Powders
- Softgels
- Tablets
Operations:- Tablet compression
- Encapsulation
- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026Garden Grove, CA, United Statespristines.com
- Capsules
- Powders
Operations:- Tablet compression
- Encapsulation
- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026Santa Fe Springs, CA, United Statesfoodpharma.com
- Soft chews & chewables
Operations:- Molding
NSF/ANSI 455-2checked Nov 1, 2026GMP Laboratories of America, Inc.
USDA OrganicAnaheim, CA, United Statesgmplabs.com
- Capsules
- Gummies
- Liquids
- Oils
- Powders
- Tablets
Operations:- Coating
- Liquid formulation
- Tablet compression
- Encapsulation
- +1 more
NSF/ANSI 455-2checked Nov 1, 2026San Diego, CA, United Statesstarmanutra.com
- Capsules
- Liquids
- Oils
- Powders
- Tablets
Operations:- Liquid formulation
- Tablet compression
- Encapsulation
- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026Harmony Foods LLC dba SCN Bestco
USDA OrganicSanta Cruz, CA, United Statesscnbestco.com
- Gummies
Operations:- Kitting
- Baking
- Molding
- Coating
- +1 more
NSF/ANSI 455-2checked Nov 1, 2026Torrance, CA, United Statesherbalife.com
- Powders
Operations:- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026Irwindale, CA, United Stateshumaningenuity.com
- Capsules
- Powders
- Softgels
Operations:- Encapsulation
NSF/ANSI 455-2checked Nov 1, 2026International Vitamin Corporation
USDA OrganicIrvine, CA, United Statesivcinc.com
- Capsules
- Powders
- Softgels
- Tablets
Operations:- Coating
- Liquid formulation
- Tablet compression
- Encapsulation
- +1 more
NSF/ANSI 455-2checked Nov 1, 2026InvaPharm, Inc.
USDA OrganicOntario, CA, United Statesinvapharm.com
- Capsules
- Powders
- Tablets
Operations:- Coating
- Tablet compression
- Encapsulation
- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026Chino, CA, United Statesjinhernutra.com
- Capsules
- Powders
- Softgels
- Tablets
Operations:- Tablet compression
- Encapsulation
NSF/ANSI 455-2checked Nov 1, 2026San Diego, CA, United Statesjlmnutra.com
- Capsules
- Gummies
- Oils
Operations:- Liquid formulation
- Encapsulation
- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026Pomona, CA, United Stateskmaxgroup.com
- Capsules
- Softgels
- Tablets
NSF/ANSI 455-2checked Nov 1, 2026Riverside, CA, United Stateskelkerpharma.com
- Capsules
- Powders
- Tablets
Operations:- Tablet compression
- Encapsulation
- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026- NSF/ANSI 455-2checked Nov 1, 2026
Lefan Capsule International Inc.
USDA OrganicOceanside, CA, United Stateslefancaps.com
- Capsules
- Powders
Operations:- Liquid formulation
- Encapsulation
- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026Lief Organics, LLC
USDA OrganicValencia, CA, United Stateslieflabs.com
- Capsules
- Powders
- Tablets
Operations:- Tablet compression
- Encapsulation
- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026Aliso Viejo, CA, United Statesmetagenics.com
- Capsules
- Gummies
- Liquids
- Oils
- Powders
- Softgels
- +1 more
Operations:- Kitting
- Coating
- Tablet compression
- Encapsulation
- +1 more
NSF/ANSI 455-2checked Nov 1, 2026Natrol LLC
USDA OrganicChatsworth, CA, United Statesnatrol.com
- Capsules
- Liquids
- Powders
- Softgels
- Tablets
Operations:- Kitting
- Coating
- Tablet compression
- Encapsulation
- +1 more
NSF/ANSI 455-2checked Nov 1, 2026Carlsbad, CA, United Statesnai-online.com
- Capsules
- Powders
- Tablets
Operations:- Coating
- Tablet compression
- Encapsulation
- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026Torrance, CA, United Statesparagonlabsusa.com
- Capsules
- Powders
- Tablets
Operations:- Coating
- Tablet compression
- Encapsulation
- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026Nellson Nutraceutical, LLC
USDA OrganicAnaheim, CA, United Statesnellsonllc.com
- Powders
Operations:- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026New Generation Wellness Inc.
USDA OrganicIrvine, CA, United Statesngwellness.com
- Capsules
- Gummies
- Powders
- Softgels
- Tablets
Operations:- Molding
- Coating
- Tablet compression
- Encapsulation
- +1 more
NSF/ANSI 455-2checked Nov 1, 2026NHK Laboratories, Inc.
USDA OrganicSanta Fe Springs, CA, United Statesnhklabs.com
- Capsules
- Powders
- Softgels
- Tablets
Operations:- Coating
- Tablet compression
- Encapsulation
NSF/ANSI 455-2checked Nov 1, 2026Watsonville, CA, United Statesnordicnaturals.com
- Capsules
- Gummies
- Liquids
- Oils
- Powders
- Softgels
- +1 more
Operations:- Molding
- Liquid formulation
- Encapsulation
NSF/ANSI 455-2checked Nov 1, 2026Irvine, CA, United Statesnutrawise.net
- Capsules
- Powders
- Tablets
Operations:- Tablet compression
- Encapsulation
- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026Chula Vista, CA, United Statespurensm.com
- Capsules
- Powders
- Tablets
Operations:- Tablet compression
- Encapsulation
- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026
Compare supplement manufacturers at a glance in California
- The most common dosage forms in the listed scope of these 91 supplement manufacturers in California are capsules (65), powders (63) and tablets (48).
- 87 of the 91 supplement manufacturers in California list a company website.
| Manufacturer | Location | Dosage forms in listed scope | Certification | Last checked |
|---|---|---|---|---|
| Aaron Thomas Company, Inc. | Garden Grove, CA | Capsules, Gummies, Powders, Softgels, Tablets | NSF/ANSI 455-2 | |
| Advanced Food Concepts, Inc. (DBA - GU Energy Labs) | Berkeley, CA | — | NSF/ANSI 455-2 | |
| Albert Max, Inc. | Chino, CA | Capsules, Powders | NSF/ANSI 455-2 | |
| All Points Manufacturing | Vallejo, CA | — | Informed Manufacturer (not a GMP audit), USDA Organic | |
| ALPHA PLUS TECH, LLC | Ontario, CA | Capsules, Gummies, Liquids, Oils, Powders, Softgels, +1 more | NSF/ANSI 455-2 | |
| Amaxi Nutrition Products, Inc. | Rancho Cucamonga, CA | Powders | NSF/ANSI 455-2 | |
| American Best Life Inc. | Irvine, CA | Capsules, Tablets | NSF/ANSI 455-2 | |
| Americana Trading LLC | Chatsworth, CA | Capsules, Gummies, Tablets | NSF/ANSI 455-2 | |
| Bay Cities Container Corporation | Pico Rivera, CA | Powders | NSF/ANSI 455-2 | |
| Beacon Manufacturing Inc. DBA North West PharmaNaturals | Brea, CA | Capsules, Powders | NSF/ANSI 455-2, USDA Organic | |
| Berkeley Nutritional Manufacturing Corporation DBA Protein Research | Livermore, CA | Capsules, Powders, Tablets | NSF/ANSI 455-2, USDA Organic | |
| Bestvite Inc | Sun Valley, CA | Capsules, Tablets | NSF/ANSI 455-2 | |
| BF Suma Pharmaceuticals, Inc. | Rosemead, CA | Capsules, Powders | NSF/ANSI 455-2 | |
| Captek Softgel International, Inc. | Cerritos, CA | Capsules, Gummies, Softgels, Tablets | NSF/ANSI 455-2, USDA Organic | |
| Catalo Natural Health Science, Inc. | Torrance, CA | Capsules, Powders, Tablets | NSF/ANSI 455-2 | |
| Cell Wellness LLC dba Protixa | Anaheim, CA | Capsules, Gummies, Liquids | NSF/ANSI 455-2 | |
| Colorado Biolabs, Inc. dba Proferrin Labs, Inc. | Jurupa Valley, CA | Capsules, Powders, Tablets | NSF/ANSI 455-2 | |
| Continental Vitamin Company, Inc. | Vernon, CA | Powders, Tablets | NSF/ANSI 455-2 | |
| DLC Laboratories, Inc. Corporation | Paramount, CA | Capsules, Liquids, Oils, Softgels | NSF/ANSI 455-2 | |
| Eagleshine Group Inc. | Corona, CA | Capsules, Liquids, Oils, Powders, Softgels, Tablets | NSF/ANSI 455-2, USDA Organic | |
| Ethical Naturals, Inc. | Redwood City, CA | Capsules, Oils, Powders | NSF/ANSI 455-2 | |
| Everest Formulations | Ontario, CA | Capsules, Powders | NSF/ANSI 455-2 | |
| EW Packaging | Gardena, CA | Capsules, Gummies, Powders, Softgels, Tablets | NSF/ANSI 455-2, USDA Organic | |
| Excelsior Nutrition Inc DBA 4Excelsior | Anaheim, CA | Capsules, Gummies, Powders, Softgels, Tablets | NSF/ANSI 455-2, Informed Manufacturer (not a GMP audit), USDA Organic | |
| FedPharm Inc. | Garden Grove, CA | Capsules, Powders | NSF/ANSI 455-2 |
Questions buyers ask
What is a dietary supplement contract manufacturer?
A contract manufacturer produces supplements that another company sells under its own brand. Some offer custom formulation and development; others mainly run your formula or offer stock (private label) formulas you can put your label on. Many also handle packaging, labelling and testing.
What does NSF/ANSI 455-2 certification mean?
NSF/ANSI 455-2 is a good manufacturing practice (GMP) audit standard for dietary supplements. It is built around the US FDA’s dietary supplement GMP rule (21 CFR Part 111) and adds retailer-driven requirements, so facilities are audited against one harmonised checklist. Certification applies to a specific facility and is listed publicly by the certifier.
What should I ask for in a quote request?
Ask for minimum order quantity, lead times, formulation options, testing and certificates of analysis, in writing. In detail: ask about minimum order quantity (MOQ) per SKU, lead time for a first run and for reorders, whether they offer stock formulas or custom formulation, who sources raw materials, what testing they run (identity, potency, microbiological, heavy metals) and whether you receive a certificate of analysis (COA) per batch, and whether they support the label claims you plan to make. Terms vary widely by manufacturer, so compare written answers rather than assumptions.
How do I verify a manufacturer’s GMP certification myself?
Ask the manufacturer for their current certificate and the exact facility address it covers, then look that facility up on the certifier’s public listing (for NSF/ANSI 455, NSF’s online listings). Certificates apply to specific sites, so make sure the facility that will make your product is the one listed. Each profile here links to the public listing we checked and the date we checked it.
Why is a manufacturer missing from this list?
A manufacturer is missing when none of its facilities appears on any of the registries this directory checks today: NSF’s public NSF/ANSI 455 listing, Health Canada’s public list of natural health product site licences, the Natural Products Association’s public list of GMP-certified companies or Informed Manufacturer’s public list of certified facilities. Many good manufacturers hold other GMP certifications (or an FDA-registered facility without third-party certification) and are not listed yet. We plan to add other registries; manufacturers can also ask to be listed.
How do I compare supplement manufacturers in California?
Check the facility address and the scope shown on its registry record, then confirm that the proposed work will take place at that site in California. Ask for a written quote with minimum order, testing, packaging, freight and lead times. A company address alone does not establish where your order will be made.