ISO Auditing Services in USA: Your Partner in Compliance Assurance and Risk Mitigation

ISO auditing services USA provide the independent verification your organization needs to achieve and maintain certification while protecting your supply chain from compliance risk. AGS, an ANAB-accredited certification body, delivers comprehensive audit solutions across the United States from certification audits to supplier audits and outsourced internal audits.

The #1 Fear in ISO Certification: Non‑Conformances That Delay Your Business and How We Prevent Them

Your certification audit is scheduled. Your team has worked for months. Then the auditor finds a major non‑conformance. Your certification is delayed. Revenue is lost.

The AGS Difference: Pre‑Assessments That Identify Issues Before Certification Audits

Our gap analysis and pre‑assessment services function as your “dry run” before the formal certification audit. By identifying weaknesses early, you fix issues when they’re inexpensive to correct, enter the audit with confidence, and save up to 50% on audit fees.

ISO Certification Audits: Your Pathway to ANAB‑Accredited Certification

Stage 1 Audit: Documentation Review and Readiness Confirmation

What We Review: Quality Manual, documented procedures, risk assessments, scope definition, internal audit records, management review minutes, legal compliance documentation.
Outcomes: Findings Report, Readiness Recommendation, Scope Confirmation.

Stage 2 Audit: On‑Site Implementation Verification

Control Testing: Process observation, record sampling, employee interviews, equipment inspection, supplier verification.

Surveillance and Recertification Audits

Supplier Audit Services: Vetting Your Supply Chain Across the USA

In today’s interconnected supply chain, your vendors’ compliance is your compliance. Second‑party audits provide objective verification before problems occur.

Automotive (IATF 16949)

Detroit, Ohio, Midwest. Assess Tier 1/2 suppliers for core tools, CSRs (Ford, GM, Stellantis), warranty data.

Aerospace (AS9100)

Seattle, Wichita, SoCal. Product safety, configuration management, counterfeit parts, FOD, special processes.

Medical Devices (ISO 13485)

Boston, Minneapolis, San Diego. Design controls, risk management, sterilization, complaint handling.

Energy (ISO 9001/14001/45001)

Houston, Gulf Coast. Process safety, environmental compliance, contractor safety.

Every supplier audit delivers clear pass/fail determination, detailed non‑conformance descriptions, photographic evidence, risk rating, and corrective action deadlines.

Outsourced Internal Audit Services: Fulfilling Clause 9.2 with Expert Objectivity

Why Outsource?

Objectivity – external auditors bring no internal bias
Expertise – industry‑specific knowledge
Efficiency – reduced disruption
Credibility – findings carry weight
Benchmarking – insights from similar organizations

Our Internal Audit Process

Audit schedule development
On‑site or remote execution
Detailed findings report
Corrective action verification support

Internal Audit Programs for Multiple Standards

Integrated Management Systems (ISO 9001, 14001, 45001): Cover all three in one visit, combined reporting.
Information Security (ISO 27001) with NIST Alignment: Map controls to NIST 800‑171, prepare for CMMC.

Gap Analysis and Pre‑Assessment Services: The “Dry Run” Before Certification

A gap analysis systematically compares your current practices against standard requirements with no pass/fail outcome. It identifies exactly what needs attention before certification.

Deliverables: Detailed findings, risk prioritization, remediation roadmap, resource estimates, best practice recommendations. Save 40–50% on total certification costs.

Industry‑Specific Auditing Expertise Across Key US Hubs

Automotive Detroit, Cleveland, Indianapolis, Chicago – IATF 16949, core tools, CSRs.

Aerospace Seattle, Wichita, Los Angeles, Dallas – AS9100, product safety, FOD.

Medical Devices Boston, Minneapolis, San Diego, Orange County – ISO 13485, FDA QMSR, design controls.

Energy Houston, Baton Rouge, Tulsa, New Orleans – ISO 9001/14001/45001, process safety.

Technology Silicon Valley, Austin, Research Triangle, Seattle – ISO 27001, NIST, CMMC.

Regulatory Integration: Aligning ISO Audits with US Requirements

FDA 21 CFR 820 and ISO 13485

CMMC and NIST 800‑171

Level 1: Basic safeguarding of FCI – gap assessment
Level 2: Protection of CUI per NIST 800‑171 – full audit
Level 3: Advanced persistent threat protection – complex environment verification

ISO 45001 audits support OSHA compliance; ISO 14001 audits address EPA requirements.

Auditor Qualifications: Why AGS Auditors Are Different

AGS holds ANAB and IAS accreditation, ensuring our audit processes meet ISO/IEC 17021 requirements and our certificates are globally recognized through IAF MLA.

CQA (ASQ)

Certified Quality Auditor – demonstrated competence in quality auditing.

IRCA Lead Auditor

International recognition, rigorous training.

Exemplar Global

US/Australia‑based certification.

Auditor vs. Consultant: Auditors verify conformance and grant/withhold certificates; they cannot help implement systems due to independence requirements. AGS provides both through separate, independent teams.

Our Happy Client's

Frequently Asked Questions

What’s the difference between Stage 1 and Stage 2 audits?

Stage 1 is a documentation review and readiness assessment. Stage 2 is the full on‑site implementation verification. Stage 1 must be completed before Stage 2.

Can I outsource my internal audit requirement?

Yes. Outsourcing to qualified third‑party auditors fulfills Clause 9.2 requirements while providing expertise your internal team may lack.

How do I audit my suppliers in another state?

AGS conducts supplier audits anywhere in the USA. Our network of industry‑specific auditors covers all major hubs. We handle travel, scheduling, and reporting.

What happens if we get a non‑conformance?

Major NCs require root cause analysis and corrective action within 60 days, with verification audit. Minor NCs require corrective action by the next surveillance audit. AGS provides post‑audit support.

How do I verify an auditor’s accreditation?

Check the certification body’s ANAB/IAS status on their public registry, and verify individual auditor credentials (IRCA/Exemplar Global certificate numbers online).

Do you offer audits in my city/state?

Yes, our auditor network covers all 50 states. Contact us to discuss your specific location.

Ready to Ensure Your Certification Success?

ISO auditing services USA from AGS deliver independent verification that protects your business from compliance risk. Contact our USA Auditing Team for a free consultation.