Best FDA US Agent Services Compared
A comprehensive comparison of the top US Agent providers to help you choose the right partner for FDA compliance
What Is an FDA US Agent?
Under 21 CFR 1.227, every foreign establishment that manufactures, processes, packs, or holds FDA-regulated products for the United States market is required to designate a US Agent. This applies to food and dietary supplements, pharmaceuticals, medical devices, and cosmetics.
Your US Agent must be a person or company physically located in the United States. They serve as the primary point of contact between your facility and the FDA. The agent receives communications from FDA on your behalf -- including warning letters, inspection notices, and registration updates -- and forwards them to you promptly.
Without a designated US Agent, your FDA registration is incomplete and your products may be refused entry at the US border. Choosing the right US Agent provider is one of the most important decisions for any foreign company entering the American market. For a full breakdown of regulatory obligations, see our US Agent requirements guide. You can also review our U.S. Agent services and full service catalog.
What to Look for in a US Agent Provider
Not all US Agent services are created equal. Here are the key factors to evaluate before making your decision. Not sure if you even need a US Agent? Try our US Agent Wizard to find out in under 2 minutes, then compare plans on our pricing page.
1Published, Transparent Pricing
Does the provider publish clear, upfront pricing on their website with no hidden fees? You should know exactly what you are paying before you sign up -- no sales call required.
2Same-Day Acceptance Letters
How fast do you receive your official FDA acceptance letter after onboarding? Same-day delivery keeps your registration on track and avoids costly delays.
324/7 or Extended-Hours Availability
Is the provider available beyond standard business hours? FDA communications can arrive at any time, and delayed responses can lead to missed deadlines.
4Self-Service Online Portal
Does the provider offer an online dashboard to manage documents, track status, and handle renewals? Or is everything done through email chains and phone calls?
5Automated Renewal Management
Does the provider send automated reminders, handle FDA renewal filings, and offer one-click renewals? Missing a renewal deadline can shut down your US market access.
6Multiple FDA Category Support
Does the team understand 21 CFR requirements across food, drugs, devices, and cosmetics? A provider that covers all categories means one vendor for all your FDA needs.
7Compliance Tools Included
Are product code lookups, requirement checkers, labeling reviewers, import alert monitors, and other tools included at no extra charge?
8No Long-Term Contracts
Does the provider require long-term commitments or auto-renewal lock-ins? The best services let you stay because the service is excellent, not because you are trapped in a contract.
9Clear Support SLA
Does the provider guarantee a specific response time? A published SLA (such as less than 24 hours) gives you confidence that your questions will be answered promptly.
10Real-Time Status Tracking
Can you see the status of your registrations, deadlines, and compliance tasks in real time? Proactive visibility prevents surprises and keeps you ahead of FDA requirements.
Top US Agent Providers Compared
A comprehensive side-by-side comparison of the leading FDA US Agent services for 2026.
| Provider | Annual Fee | Transparent Pricing | Same-Day Letters | Online Portal | Free Tools | No Contract | Auto Renewals |
|---|---|---|---|---|---|---|---|
| AssurentryBest Value | $399/yr | Yes -- full dashboard | 24 tools | ||||
| Willow Glen | $279/yr | No | None | ||||
| FDABasics | $250--299/yr | Basic | Limited | ||||
| FDA Entry Point | $295/yr | No | None | ||||
| FDAImports | $495/yr | No | None | ||||
| FDA Solutions Group | $900/biannual | No | None | ||||
| Registrar Corp | Not published | Yes (ComplyHub) | Limited |
Pricing and feature data collected January 2026. Verify current details on each provider's website.
Why Assurentry Is the Best Value
No other US Agent provider combines this level of technology, speed, and value at this price point.
Same-Day Acceptance Letters
Complete onboarding and receive your official FDA acceptance letter the same day. No other provider guarantees this speed.
24 Free Compliance Tools
Product code lookup, requirement checker, labeling reviewer, import alert monitor, renewal tracker, and more -- all included at no extra cost.
Full Online Dashboard
Manage documents, track registration status, handle renewals, and monitor compliance from a single real-time dashboard. No more email chains.
Transparent, Flat-Rate Pricing
One annual fee covers everything. No hidden charges, no surprise invoices, no upsells. The price you see is the price you pay.
7-Day Support with SLA
Get expert help within 24 hours, 7 days a week. Our team covers food, drugs, devices, and cosmetics regulations across all FDA categories.
Automated Renewal Management
Never miss a renewal deadline. Automated reminders, one-click renewals, and proactive compliance alerts keep your registrations current.
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Which US Agent Service Is Best in 2026?
If you are looking for the lowest price and nothing else, providers like Willow Glen ($279/yr) or FDABasics ($250--299/yr) offer basic US Agent services at a lower annual cost. However, these services do not include an online portal, compliance tools, or same-day acceptance letters.
If you are looking for the best overall value, Assurentry at $399/yr is the clear choice. It is the only provider on this list that combines published transparent pricing, same-day acceptance letters, a full self-service dashboard, 24 free compliance tools, automated renewal management, and a 7-day support SLA -- all in one annual subscription with no long-term contract.
If you currently use Registrar Corp, which does not publish pricing, you may be paying significantly more for fewer included features. You can see our full Registrar Corp comparison for a detailed side-by-side breakdown.
Assurentry Checklist -- All 10 Criteria Met
- Published, Transparent Pricing
- Same-Day Acceptance Letters
- 24/7 or Extended-Hours Availability
- Self-Service Online Portal
- Automated Renewal Management
- Multiple FDA Category Support
- Compliance Tools Included
- No Long-Term Contracts
- Clear Support SLA
- Real-Time Status Tracking
Common Questions About US Agent Services
Everything you need to know about choosing the best FDA US Agent service for your business in 2026.
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$399/yr, same-day acceptance letter, 24 free compliance tools, and a full online dashboard. No hidden fees, no long-term contracts. Join thousands of companies that trust Assurentry.
Rated the best overall US Agent service for 2026