Contract Manufacturing

Full-service manufacturers offering private label and custom formulation for dietary supplements. Includes co-manufacturing, white label, and turnkey production.

Dietary supplement manufacturers must comply with 21 CFR Part 111 (Current Good Manufacturing Practice for dietary supplements). This includes requirements for personnel, facilities, equipment, production, laboratory operations, and record-keeping.

What Contract Manufacturers Do

Contract manufacturers produce dietary supplements for brands that don't own their own production facilities. A typical CM handles some or all of: raw material sourcing, formulation, blending, encapsulation or tableting, quality testing, packaging, and labeling. Some also provide warehousing and fulfillment services.

The industry ranges from small-batch specialists producing hundreds of bottles per run to industrial-scale operations making billions of dosage units per year. Choosing the right manufacturer depends on your product type, volume requirements, budget, and certification needs.

How to Evaluate a Contract Manufacturer

  • FDA registration and cGMP compliance: Both are legally required under 21 CFR Part 111. Ask for their FDA registration number and most recent inspection results. An FDA warning letter history is public record — check FDA.gov.
  • Third-party certifications: NSF International, USP, SQF, and ISO certifications provide independent verification beyond self-reported cGMP compliance. Ask which bodies audited them and when.
  • Dosage form capabilities: Not every manufacturer handles every format. Softgels, gummies, effervescent tablets, and liquids each require specialized equipment. Confirm they routinely produce your dosage form at your volumes.
  • Minimum order quantities and lead times: MOQs vary from 500 to 300,000+ units. Lead times range from 4 weeks to 16+ weeks for first orders. Get these numbers in writing early — they determine your cash flow and launch timeline.
  • In-house vs. outsourced testing: Manufacturers with in-house testing labs can turn quality checks around faster. Those relying on third-party labs add time but may provide more independent results. Ask how they handle out-of-spec results.

Disclaimer: This page is educational content, not professional advice. Manufacturing requirements vary by product type and regulatory jurisdiction. Consult qualified professionals. See our Terms of Service for details.

Assessed Vendors

Showing 12 of 12 vendors

Makers Nutrition operates a 177,000 sq ft FDA-registered facility in Commack, New York. They focus on startups and emerging brands with some of the lowest minimum order quantities in the industry. Their turnkey model covers every step from formulation through fulfillment. The company offers over 100 stock formulas for private label products. Custom formulation is available for brands that need unique products. Their NSF-certified cGMP facility can produce up to 200,000 bottles per day. Design services include label creation and packaging. They also handle warehousing and order fulfillment for direct-to-consumer brands. Founded in 2014, they have grown quickly by serving brand owners who are launching their first supplement products.

Min. Order

500 bottles (private label), 1,500 bottles (custom)

Lead Time

4-6 weeks

CapsulesTabletsPowdersSoftgelsGummies
cGMP CompliantNSF CertifiedFDA Registered

Assessed Mar 2026

View Profile →

NutraScience Labs brings over 50 years of nutraceutical manufacturing experience from its facilities on Long Island, New York. The company is a subsidiary of Twinlab Consolidation Corporation (OTCPK: TLCC). They specialize in powder flavoring and offer a wide range of dosage forms. Their NSF-certified cGMP status has been renewed consistently across both east and west coast manufacturing sites. Every account receives a dedicated manager available around the clock. The company handles everything from formulation through packaging and fulfillment. NutraScience Labs is known for producing custom powder blends with complex flavor profiles. They provide 48-hour turnaround on price quotes for new projects.

Min. Order

Contact for quote

Lead Time

Contact for quote

CapsulesTabletsPowdersSoftgels
cGMP CompliantNSF CertifiedFDA Registered

Assessed Mar 2026

View Profile →

Valencia, California

How We Get Paid

Lief Labs operates over 220,000 sq ft of manufacturing space across two FDA-registered facilities in Valencia, California. The company holds USDA Organic certification and an ISO/IEC 17025 accredited microbiology lab. This in-house testing capability is unusual for contract manufacturers and allows faster quality control turnaround. They produce over 5 million capsules and 1 million tablets per day. Lief Labs was one of the first contract manufacturers to earn NSF International cGMP certification, holding it since 2010. Their product line includes organic-approved tablets, a category few competitors offer. The company also provides Non-GMO Project verification assistance for brands seeking that certification. They target emerging and entrepreneurial brands with minimum orders starting at 2,500 units.

Min. Order

2,500 units

Lead Time

Contact for quote

CapsulesTabletsPowdersGummies
cGMP CompliantNSF CertifiedFDA RegisteredUSDA OrganicISO/IEC 17025 Lab

Assessed Mar 2026

View Profile →

Vitaquest International has manufactured dietary supplements for over 40 years from its three facilities in West Caldwell, New Jersey. The company was the first nutraceutical manufacturer in the United States to earn FSSC 22000 certification. They hold USP Quality Systems GMP verification, a higher standard than typical cGMP compliance. Vitaquest serves over 500 brands globally and produces more than 4,000 products. Their capabilities include specialty dosage forms like effervescent tablets, orally disintegrating tablets, and microencapsulated ingredients. A dedicated particle engineering facility handles complex formulations that most manufacturers cannot produce. The company employs 500 to 700 people and produces roughly 3 billion capsule doses and 2 billion tablet doses per year. Lead times run 12 to 16 weeks for first-time orders, longer than smaller manufacturers but typical for this scale of operation.

Min. Order

4,100+ bottles (varies by format)

Lead Time

12-16 weeks

CapsulesTabletsPowdersChewablesEffervescent Tablets
cGMP CompliantUSP VerifiedFSSC 22000NSF CertifiedFDA Registered

Assessed Mar 2026

View Profile →

Santa Ana, California

How We Get Paid

Robinson Pharma operates over 1 million sq ft of manufacturing space across eight to nine facilities in Santa Ana and Costa Mesa, California. Founded in 1989, the company has the largest softgel production capacity in the United States. Their facilities produce 23 billion softgels, 7 billion gummies, and 5 billion tablets and capsules per year. Robinson Pharma holds certifications from NSF, UL, Eurofins, and carries ISO 9001:2015 and SQF credentials. They are one of few contract manufacturers with both USDA Organic and USP certification. The company recently expanded with new high-speed liquid production lines and additional tablet capabilities. They serve brands that need high-volume production runs with claims of the shortest lead times in the industry. Their facility count has grown from seven to nine buildings in recent years, funded partly by a $40.7 million property acquisition.

Min. Order

Contact for quote

Lead Time

Contact for quote

SoftgelsGummiesTabletsCapsulesPowdersLiquids
cGMP CompliantNSF CertifiedFDA RegisteredISO 9001:2015SQF Certified

Assessed Mar 2026

View Profile →

Bayonne, New Jersey

How We Get Paid

Summit Rx operates a 47,000 sq ft FDA-registered facility in Bayonne, New Jersey. Founded in 2012 by pharmacist Sam Salia, the company brings a pharmaceutical perspective to supplement manufacturing. They hold USDA Organic certification and maintain ISO Class 8 cleanroom suites with HEPA filtration, which exceeds what most supplement manufacturers offer. Summit Rx specializes in organic supplement production with capabilities across gummies, capsules, and custom-blended powders. They advertise low minimum order quantities and flexibility for both small and large batch production. The pharmacist-led approach means formulations go through clinical review before production. The company markets to both emerging brands and established companies looking for organic-certified manufacturing.

Min. Order

Low MOQ (contact for specifics)

Lead Time

Contact for quote

GummiesCapsulesPowders
cGMP CompliantFDA Registered

Assessed Mar 2026

View Profile →

Supplement Manufacturing Partners (SMP Nutra) operates a 155,000 sq ft facility in Largo, Florida. The company holds NSF 455-2 certification and manufactures over 800 stock products for private label customers. Their products have appeared on shelves at Walmart, Target, The Vitamin Shoppe, and GNC. SMP Nutra offers one of the most accessible entry points for new brands. Stock products start at 1,000 bottles, and custom manufacturing begins at 1,500 to 2,000 bottles. The company recently relocated its headquarters from New York to Pinellas County, Florida, with a ribbon-cutting ceremony covered in industry press. SMP Nutra covers all major dosage forms and provides full-service manufacturing from formulation through finished product. Their stock catalog lets brands launch quickly while custom formulation serves those with unique products.

Min. Order

1,000 bottles (stock), 1,500-2,000 bottles (custom)

Lead Time

6-8 weeks (stock products)

CapsulesTabletsPowdersSoftgelsGummies
cGMP CompliantNSF 455-2 CertifiedFDA Registered

Assessed Mar 2026

View Profile →

Best Formulations has manufactured dietary supplements and softgels from City of Industry, California since 1984. The company was acquired by Sirio Pharma in 2023 and now operates as Sirio Americas. This gives them access to a global network spanning Asia and Europe. Best Formulations is one of the largest plant-based softgel manufacturers in the United States. They specialize in difficult paste-style softgel formulas and probiotic handling. The company holds an FDA drug license, which is a higher regulatory standard than standard dietary supplement registration. Their four Southern California facilities total over 120,000 sq ft. They also hold NPA GMP certification and NSF GMP for Sport designation, making them suitable for sports nutrition brands. The Sirio acquisition brings institutional-grade resources but may add corporate complexity for smaller brands.

Min. Order

Contact for quote

Lead Time

Contact for quote

SoftgelsTabletsCapsulesPowdersGummiesLiquids
FDA Drug LicensecGMP CompliantNPA GMP CertifiedNSF GMP for SportFDA Registered

Assessed Mar 2026

View Profile →

Gemini Pharmaceuticals has produced tablets, capsules, and OTC pharmaceuticals from Commack, New York for over 30 years. The company produces 13 billion dosage units per year and packages over 150,000 bottles per shift. They hold certifications from the FDA, Health Canada, TGA (Australia), and NSF International, making them one of few US contract manufacturers with multi-country registration. Gemini was the first manufacturer to earn RIBUS Certified Contract Manufacturer status for clean label products. They recently received approval for a $25 million expansion supported by Suffolk County IDA incentives. This expansion includes a new probiotic supplement facility at 81 Modular Avenue. Their 300,000 unit minimum order signals they serve mid-to-large brands, not startups. The ISO 17025 accredited in-house laboratory handles identity testing, potency analysis, and stability studies.

Min. Order

300,000 units

Lead Time

Contact for quote

TabletsCapsulesOTC Pharmaceuticals
cGMP CompliantFDA RegisteredHealth CanadaTGA (Australia)NSF CertifiedISO 17025 LabNon-GMO Project Verified

Assessed Mar 2026

View Profile →

Bactolac Pharmaceutical operates 650,000 sq ft of manufacturing space in Hauppauge, New York. Founded in 1995, the company is one of the largest full-service supplement manufacturers on Long Island. They handle every step in-house, from product development through final packaging and label application. Bactolac holds certifications from NSF, UL, NPA, and QAI (USDA-accredited organic certifier). Their product range covers standard capsules and tablets as well as specialty formats like sublingual tablets, enteric-coated capsules, and stick packs. The company has developed expertise in emerging supplement categories including nootropics, longevity products, and pet supplements. They can support brands seeking NSF for Sport, organic, or Non-GMO Project verification for their finished products. Their in-house testing lab runs quality control without relying on outside laboratories.

Min. Order

Contact for quote

Lead Time

Contact for quote

CapsulesTabletsPowdersSoftgelsLiquidsSachets
cGMP CompliantFDA RegisteredNSF GMP Certified

Assessed Mar 2026

View Profile →

Captek Softgel International (CSI) specializes in softgel and gummy manufacturing from facilities in Cerritos, Vista, and La Mirada, California. Founded in 1996, the company employs roughly 700 people and has produced over 4,000 formulations. They developed MarineGel, a marine-sourced softgel alternative to traditional bovine and porcine gelatin. This product is naturally suited for Halal and Kosher markets. Captek operates an SQF-certified 60,000 sq ft gummy facility in La Mirada with a starch-free production line. They hold NSF GMP and NSF GMP for Sport certifications. The company maintains over 160 bulk stock SKUs with low minimum order quantities for brands that want to launch quickly. Captek received private equity investment from Swander Pace Capital, signaling financial stability and growth capacity. They are one of the largest independent softgel contract manufacturers in the United States.

Min. Order

Low MOQ for stock SKUs (contact for custom)

Lead Time

Contact for quote

SoftgelsGummiesCapsules
cGMP CompliantFDA RegisteredNSF GMP CertifiedNSF GMP for SportSQF Certified

Assessed Mar 2026

View Profile →

JW Nutritional operates over 120,000 sq ft of manufacturing space across two facilities in Allen, Texas. Founded in 2004 by Jesse Windrix while in college, the company has grown into a full-service contract manufacturer. They hold NSF GMP registration and NSF Certified for Sport designation. JW Nutritional employs research scientists, flavor specialists, and chemists for in-house formulation development. The company covers all major dosage forms and includes liquid supplements and effervescent tablets in their capabilities. They position themselves as an actual manufacturer rather than a broker, which is a useful distinction in an industry where some companies outsource production. JW Nutritional received an FDA warning letter in 2015 for cGMP violations. The FDA issued a resolution letter in 2017 confirming all violations were addressed. The company is BBB accredited and markets to both startup and established brands.

Min. Order

Contact for quote

Lead Time

Contact for quote

CapsulesTabletsPowdersLiquidsGummiesEffervescent Tablets
cGMP CompliantNSF GMP RegisteredNSF Certified for SportFDA Registered

Assessed Mar 2026

View Profile →

Frequently Asked Questions

What is a supplement contract manufacturer?

A contract manufacturer (CM) produces dietary supplements on behalf of other brands. They handle some or all of the production process — from sourcing raw materials through finished packaging. This lets brands sell products without owning manufacturing facilities. CMs range from small batch specialists to large-scale producers making billions of doses per year.

What certifications should a contract manufacturer have?

At minimum, FDA registration and cGMP compliance under 21 CFR Part 111 are legally required. Beyond that, third-party certifications like NSF International GMP, USP Verified, or SQF add independent verification. Some retailers and distributors require specific certifications before they will carry a product.

How do minimum order quantities work?

MOQs vary widely — from 500 bottles for private label stock formulas to 300,000 units for large-scale manufacturers. Your MOQ depends on the dosage form, whether you want a stock or custom formula, and the manufacturer's equipment setup. Getting quotes from 3-5 manufacturers gives you a realistic range for your product type.

What is the difference between private label and custom formulation?

Private label means putting your brand on an existing formula the manufacturer already produces. It is faster and cheaper. Custom formulation means developing a unique formula for your brand — your own ingredient blend, doses, and specifications. Custom takes longer and costs more but gives you a differentiated product.

Related Categories

Need a Contract Manufacturer?

Tell us about your product and production needs. We'll help connect you with assessed manufacturers that match your requirements.

Contract Manufacturers — Supplement Manufacturing Directory | Inventory Ready