7 capsule manufacturers IR has assessed for emerging supplement brands
Ranked using IR’s transparency-weighted score against independently confirmed third-party certifications, published commercial transparency, and editorial disclosure discipline. Method, scoring weights, limitations, and exclusions disclosed below.
Answer
Method — read this first
- Inclusion criteria
- FDA-registered facility · Active capsule manufacturing capability · ≥1 independently confirmed third-party certification (NSF GMP, NSF/ANSI 455-2, SQF, or USDA Organic) confirmed against the issuing body's public directory.
- Excluded
- Self-only operations (no contract manufacturing) · Active FDA warning letter or unresolved enforcement · Insufficient public documentation to verify capabilities · Manufacturers without any independently confirmed certification.
- Data sources
- NSF International public directory (info.nsf.org) · SQFI Certified Site Directory · USDA Organic Integrity Database (organic.ams.usda.gov) · vendor self-reports cross-checked against public records. FDA facility registration has no public lookup; registration is vendor-represented unless documentary confirmation is provided.
- Scoring weights
- Independent third-party certification (max 50): NSF GMP +30 · NSF/ANSI 455-2 +30 · SQF +20 · USDA Organic +15. Public commercial transparency (max 35): published MOQ +18 · published lead time +17. Editorial disclosure discipline (max 15): material connection statement +5 · ownership or backing disclosure +10.
- Commercial disclosure
- As of August 2026, none of the seven manufacturers paid for placement. Commercial status (Basic / Enhanced) and editorial status (Source-checked / Assessed) are independent axes. See how we assess.
- Refresh
- Quarterly · event-triggered on FDA enforcement action or material change in confirmed certification status.
Cited findings
- All seven hold ≥1 independently confirmed certification cross-checked against a public directory (NSF, SQFI, USDA Organic, or NSF/ANSI 455-2). Three hold two confirmed certifications.
- Two of seven publish MOQ floors and lead times on their websites (Makers Nutrition, SMP Nutra). The five others require a quote request.
- Captek Softgel International holds NSF GMP (NSF 306) independently confirmed via the NSF public directory. Inventory Ready could not confirm an SQF certification for this site in the SQFI Certified Site Directory as of 2026-07-23, so SQF is recorded as self-reported rather than confirmed.
| # | Manufacturer | Location | MOQ | Lead time | Confirmed certs | IR score | One real limitation |
|---|---|---|---|---|---|---|---|
| 1 | Makers Nutrition | Commack, New York | 500 units (stock formulas) | 4 weeks (fastest published) | NSF GMP | 70 | On-site facility inspection was not conducted. Financial stability and insurance coverage have not been independently assessed. The company publishes a fastest turnaround of 4 weeks rather than a typical range, and directs custom-formula minimums to a phone call, so plan against a quote rather than these figures. |
| 2 | SMP Nutra | Largo, Florida | Varies by formula: 2,500 to 5,000 bottles per SKU (stock, per its FAQ; stock tablets from 1,000 depending on formula), 2,500 to 5,000 bottles (custom capsules and tablets) | 8 to 10 weeks (new customers), 6 to 8 weeks (reorders) | NSF/ANSI 455-2 | 70 | Lead times for fully custom manufacturing are not published. Stock products may use shared formulations across multiple brands. |
| 3 | Captek Softgel International | Cerritos, California | Not publicly disclosed | Not publicly disclosed | NSF GMP | 45 | Specific MOQ and lead times are not publicly disclosed for custom orders. Limited to softgels, gummies, and capsules; no tablet or powder capability. |
| 4 | Kelker Pharma | Riverside, California | Not publicly disclosed (website states "low minimums") | Not publicly disclosed | NSF/ANSI 455-2, USDA Organic | 45 | Company also operates its own consumer brand (NUTRILINQ), which may create capacity allocation considerations during high-demand periods. |
| 5 | GMP Laboratories of America | Anaheim, California | Not publicly disclosed | Not publicly disclosed | NSF GMP, USDA Organic | 45 | MOQ and lead time are not publicly disclosed. Material connection or backing disclosures are not populated for this manufacturer. An NSF Certified for Sport status was previously listed here; it is not confirmable in a public register and has been withdrawn. |
| 6 | Robinson Pharma | Santa Ana, California | Not publicly disclosed | Not publicly disclosed | SQF, USDA Organic | 40 | MOQ floor is not publicly disclosed; request it directly before you plan a run. Only independently confirmed certifications are listed above; any NSF or USP Verified status is self-reported. |
| 7 | Vitaquest International | West Caldwell, New Jersey | Not publicly disclosed | Not publicly disclosed | NSF GMP | 35 | Neither an MOQ floor nor a lead time is published today; request both directly before you plan a run. Earlier figures of 4,100+ bottles and 12 to 16 weeks were carried here from an undated company-website reference and could not be relocated on 2026-08-19, so they have been withdrawn. Only independently confirmed certifications are listed above. |
§2Per-vendor assessment notes
Each entry includes one strength, one limitation, and the evidence path.
1 · Makers Nutrition
Score 70 / 100Strength: Lowest published MOQ floor in the assessed group: 500 units for stock formulas. NSF GMP independently confirmed via the NSF public directory.
Limitation: On-site facility inspection was not conducted. Financial stability and insurance coverage have not been independently assessed. Phone number sourced from company website and may change. The published 4-week turnaround is a fastest case, not a typical range, and custom-formula minimums are quoted by phone.
Evidence: NSF GMP: info.nsf.org/Certified/gmp/listings.asp. MOQ and turnaround re-read 2026-08-19 from makersnutrition.com/private-label and /vitamin-manufacturer.
2 · SMP Nutra
Score 70 / 100Strength: NSF/ANSI 455-2 (the supplement-specific GMP standard) independently confirmed via the NSF public directory. 800+ stock products, with published minimums that vary by formula: 2,500 to 5,000 bottles per SKU for stock in its FAQ, stock tablets from 1,000 bottles depending on formula, and 2,500 to 5,000 bottles for custom capsules and tablets.
Limitation: Lead times are quoted by customer status rather than by product type: 8 to 10 weeks for new customers from label reception, 6 to 8 weeks for reorders with labels in house. Stock products may use shared formulations across multiple brand customers.
Evidence: NSF/ANSI 455-2: info.nsf.org/Certified/455GMP. Stock MOQ + lead time published on company website.
3 · Captek Softgel International
Score 45 / 100Strength: NSF GMP (NSF 306) independently confirmed via the NSF public directory. Softgel and gummy specialist with 4,000+ formulations produced from California facilities since 1996.
Limitation: MOQ and lead times are not publicly disclosed. Limited to softgels, gummies, and capsules; no tablet or powder capability. No on-site facility inspection conducted.
Evidence: NSF GMP: info.nsf.org/Certified/gmp/listings.asp. SQF recorded as self-reported: Inventory Ready could not confirm an SQF certification for this site in the SQFI Certified Site Directory as of 2026-07-23. Private equity backing (Swander Pace Capital) disclosed inline.
§3Frequently asked
Why is Makers Nutrition ranked first instead of Robinson Pharma?
IR's score weights public commercial transparency (35 of 100 points) alongside confirmed certifications (50 of 100). Makers Nutrition publishes both an MOQ floor (500 units for stock formulas) and a turnaround figure (4 weeks at fastest). Robinson Pharma publishes neither, despite reporting one of the largest softgel production capacities in the United States at 20 billion units per year. MOQ opacity costs Robinson Pharma 35 transparency points.
What does "Not publicly disclosed" mean?
It means IR could not find the data point on the manufacturer's website, in a public regulatory filing, or in a third-party industry directory. It does not mean the manufacturer refused a quote. Buyers should request MOQ and lead-time confirmation directly during initial inquiry. IR does not synthesize plausible-looking numbers when public evidence is absent.
How often is this list updated?
Quarterly review with event-triggered updates on FDA enforcement action, change in confirmed certification status, or material business change (acquisition, ownership transfer, facility closure). Last full editorial review: April 25, 2026. Last full claim re-verification: August 19, 2026, when every per-vendor certification, MOQ and lead-time claim was re-read against its primary source. That sweep withdrew Vitaquest's previously published MOQ and lead time (neither is published today), narrowed GMP Laboratories of America to the NSF GMP registration confirmable in the NSF public directory, and corrected the live directory counts. Scores and ranking were recomputed from the published formula on August 20, 2026, because the withdrawn figures and changed certifications are scoring inputs.
Why aren't there more manufacturers on this list?
IR's directory contained 112 capsule-capable contract manufacturers at the April 2026 review (the live directory count on this page updates as the directory grows). The seven profiled here met the April 2026 inclusion criteria: active capsule capability, one or more certifications confirmed against a public registry, and FDA registration (legally required of every facility; vendor-represented, since registration has no public lookup). Qualifying additions are evaluated at the next full review. We list only what we can substantiate.
Browse the full directory
IR’s directory contains 111 capsule manufacturers in IR's directory. Filter by certification, MOQ floor, and form factor to find a fit for your launch volume.
See all 111 capsule-capable manufacturers →Canonical: inventoryready.com/guides/best-capsule-manufacturers