Mushroom Supplement Manufacturers in California
17 mushroom supplement manufacturers in California have a GMP-certified facility (NSF/ANSI 455-2) or an Informed Manufacturer certified facility; for 16 of them a USDA Organic certificate lists mushroom items, and 2 say on their own website that they make mushroom products. The most are in Anaheim (2). USDA Organic item lists checked October 1, 2026; website claims checked October 16, 2026; certification data checked November 1, 2026.
Looking for a mushroom supplement manufacturer in the USA? Compare the listings below for private label mushroom supplements. Use the country and state links to narrow your shortlist.
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All 17 manufacturers
Order: featured, listings with a website, then A–Z.
All Points Manufacturing
USDA OrganicUSDA Organic certificate lists mushroom itemsUSDA Organic Integrity Database
Vallejo, CA, United Statesallpointsmfg.com
Informed Manufacturer(not a GMP audit)checked Oct 6, 2026USDA Organic certificate lists mushroom itemsUSDA Organic Integrity Database
Livermore, CA, United Statesproteinresearch.com
- Capsules
- Powders
- Tablets
Operations:- Tablet compression
- Encapsulation
- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026Captek Softgel International, Inc.
USDA OrganicUSDA Organic certificate lists mushroom itemsUSDA Organic Integrity Database
Cerritos, CA, United Statescapteksoftgel.com
- Capsules
- Gummies
- Softgels
- Tablets
Operations:- Molding
- Coating
- Liquid formulation
- Tablet compression
- +2 more
NSF/ANSI 455-2checked Nov 1, 2026Eagleshine Group Inc.
USDA OrganicUSDA Organic certificate lists mushroom itemsUSDA Organic Integrity Database
Corona, CA, United Stateseagleshinegroup.com
- Capsules
- Liquids
- Oils
- Powders
- Softgels
- Tablets
NSF/ANSI 455-2checked Nov 1, 2026EW Packaging
USDA OrganicUSDA Organic certificate lists mushroom itemsUSDA Organic Integrity Database
Gardena, 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 OrganicUSDA Organic certificate lists mushroom itemsUSDA Organic Integrity Database
Anaheim, CA, United States4excelsior.com
- Capsules
- Gummies
- Powders
- Softgels
- Tablets
Operations:- Tablet compression
- Encapsulation
- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026GMP Laboratories of America, Inc.
USDA OrganicUSDA Organic certificate lists mushroom itemsUSDA Organic Integrity Database
Anaheim, 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, 2026USDA Organic certificate lists mushroom itemsUSDA Organic Integrity Database
Torrance, CA, United Statesparagonlabsusa.com
- Capsules
- Powders
- Tablets
Operations:- Coating
- Tablet compression
- Encapsulation
- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026New Generation Wellness Inc.
USDA OrganicUSDA Organic certificate lists mushroom itemsUSDA Organic Integrity Database
Irvine, CA, United Statesngwellness.com
- Capsules
- Gummies
- Powders
- Softgels
- Tablets
Operations:- Molding
- Coating
- Tablet compression
- Encapsulation
- +1 more
NSF/ANSI 455-2checked Nov 1, 2026USDA Organic certificate lists mushroom itemsUSDA Organic Integrity Database
Chula Vista, CA, United Statespurensm.com
- Capsules
- Powders
- Tablets
Operations:- Tablet compression
- Encapsulation
- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026Organic by Nature, Inc.
USDA OrganicUSDA Organic certificate lists mushroom itemsUSDA Organic Integrity Database
Rancho Dominguez, CA, United Statesorganicbynatureinc.com
- Capsules
- Powders
- Tablets
Operations:- Kitting
- Tablet compression
- Encapsulation
- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026Purus Manufacturing LLC
USDA OrganicUSDA Organic certificate lists mushroom itemsUSDA Organic Integrity Database
Northridge, CA, United Statespurusmanufacturing.com
- Capsules
- Liquids
Operations:- Liquid formulation
- Encapsulation
- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026Robinson Pharma, Inc.
USDA OrganicUSDA Organic certificate lists mushroom itemsUSDA Organic Integrity Database
Costa Mesa, CA, United Statesrobinsonpharma.com
- Capsules
- Gummies
- Liquids
- Oils
- Powders
- Softgels
- +1 more
Operations:- Molding
- Coating
- Liquid formulation
- Tablet compression
- +2 more
NSF/ANSI 455-2checked Nov 1, 2026Simpson Labs LLC
USDA OrganicUSDA Organic certificate lists mushroom itemsUSDA Organic Integrity Database
Valencia, CA, United Statessimpsonlabs.net
- Capsules
- Powders
Operations:- Encapsulation
- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026Wakunaga of America Co., Ltd.
USDA OrganicSays it makes mushroom productscompany website
Mission Viejo, CA, United Stateskyolic.com
- Capsules
- Liquids
- Powders
- Softgels
- Tablets
Operations:- Extraction
- Sterilization
- Coating
- Tablet compression
- +2 more
NSF/ANSI 455-2checked Nov 1, 2026USDA Organic certificate lists mushroom itemsUSDA Organic Integrity Database
Stanton, CA, United Stateswhitebottle.com
- Capsules
- Powders
- Softgels
- Tablets
Operations:- Encapsulation
- Dry formulation
NSF/ANSI 455-2checked Nov 1, 2026USDA Organic certificate lists mushroom itemsUSDA Organic Integrity Database
Ontario, CA, United States
- Powders
NSF/ANSI 455-2checked Nov 1, 2026
Compare mushroom supplement manufacturers at a glance in California
- The most common dosage forms in the listed scope of these 17 mushroom supplement manufacturers in California are capsules (15), powders (14) and tablets (13).
- 16 of the 17 mushroom supplement manufacturers in California list a company website.
| Manufacturer | Location | Dosage forms in listed scope | Certification | Last checked |
|---|---|---|---|---|
| All Points Manufacturing | Vallejo, CA | — | Informed Manufacturer (not a GMP audit), USDA Organic | |
| Berkeley Nutritional Manufacturing Corporation DBA Protein Research | Livermore, CA | Capsules, Powders, Tablets | NSF/ANSI 455-2, USDA Organic | |
| Captek Softgel International, Inc. | Cerritos, CA | Capsules, Gummies, Softgels, Tablets | NSF/ANSI 455-2, USDA Organic | |
| Eagleshine Group Inc. | Corona, CA | Capsules, Liquids, Oils, Powders, Softgels, Tablets | NSF/ANSI 455-2, USDA Organic | |
| 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 | |
| GMP Laboratories of America, Inc. | Anaheim, CA | Capsules, Gummies, Liquids, Oils, Powders, Tablets | NSF/ANSI 455-2, USDA Organic | |
| Naturalife Eco Vite Labs., Inc. DBA Paragon Laboratories | Torrance, CA | Capsules, Powders, Tablets | NSF/ANSI 455-2, USDA Organic | |
| New Generation Wellness Inc. | Irvine, CA | Capsules, Gummies, Powders, Softgels, Tablets | NSF/ANSI 455-2, USDA Organic | |
| Nutritional Supplement Manufacturers, Inc. DBA PureNSM, DBA VeriGMP | Chula Vista, CA | Capsules, Powders, Tablets | NSF/ANSI 455-2, USDA Organic | |
| Organic by Nature, Inc. | Rancho Dominguez, CA | Capsules, Powders, Tablets | NSF/ANSI 455-2, USDA Organic | |
| Purus Manufacturing LLC | Northridge, CA | Capsules, Liquids | NSF/ANSI 455-2, USDA Organic | |
| Robinson Pharma, Inc. | Costa Mesa, CA | Capsules, Gummies, Liquids, Oils, Powders, Softgels, +1 more | NSF/ANSI 455-2, USDA Organic | |
| Simpson Labs LLC | Valencia, CA | Capsules, Powders | NSF/ANSI 455-2, Informed Manufacturer (not a GMP audit), USDA Organic | |
| Wakunaga of America Co., Ltd. | Mission Viejo, CA | Capsules, Liquids, Powders, Softgels, Tablets | NSF/ANSI 455-2, USDA Organic | |
| White Bottle, Inc. | Stanton, CA | Capsules, Powders, Softgels, Tablets | NSF/ANSI 455-2 | |
| California Packaging Centers | Ontario, CA | Powders | NSF/ANSI 455-2 |
Questions buyers ask
How do I choose a mushroom supplement manufacturer in the USA?
Start with the USA list, check the exact facility and its certificate scope, and confirm private label mushroom supplements. Ask for the minimum order, first-run and reorder lead times, testing plan and an itemized quote. Website capabilities are company claims unless a separate registry basis is shown; confirm the proposed work directly.
What should I ask a mushroom supplement manufacturer?
Ask whether the ingredient is fruiting body, mycelium or both, whether it is a whole powder or an extract and how the extract is standardised, how they confirm the species, and what they test for, such as heavy metals and microbes.
Do you verify that these companies make mushroom products?
No. A company is listed here when one of its facilities is on a public registry we check and either its USDA Organic certificate lists mushroom items or its own website says it makes mushroom products. The USDA Organic item list is the certifier’s record of what the operation is certified to handle organically, as we found it in the USDA Organic Integrity Database on the date shown; it covers organic items only and is not a test of any product. A website claim is the company’s own statement: we keep the quote, the page and the date we checked. Each card says which applies. Confirm either with the manufacturer before you rely on it.
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.
How do I compare mushroom 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.