About ACS-GP

Independent certification, built on integrity.

American Certification Services Global Program (ACS-GP) delivers impartial, value adding ISO management system certification and QHSE training through a network of experienced auditors, and with transparency at its core.

Impartial by design ISO/IEC 17021-1 ISO 19011

Who We Are

Your trusted ISO certification partner.

With deep experience in ISO certification and QHSE training, ACS-GP is a trusted partner for organisations seeking to achieve and maintain international standards. Our certified auditors and consultants bring practical expertise across every major ISO management system.

  • Certification delivered through experienced auditors qualified in your sector.
  • Value Addition Auditing that measures efficiency and effectiveness, not just conformity.
  • Impartial certification decisions, independent of the audit team.

Proven track record

500+ organisations certified across 50+ countries worldwide.

Trusted partnerships

Lasting relationships built on transparency and genuine value.

Dr. Adrian Estes, CEO of ACS-GP

Dr. Adrian Estes

Chairman & Chief Executive

PhD in Occupational Safety & Health. Lead Trainer and Auditor for OH&S and Environmental Management systems.

A Message from Our CEO

A certificate is worth no more than the integrity of the body that issues it. That single conviction has shaped everything we have built at ACS-GP.

We deliver certification and training with uncompromising transparency, impartiality and fairness. These are not aspirations but operating standards, applied consistently to every organisation we serve, whatever its size or sector.

For many years I have spoken openly about a conflict of interest the industry has too readily accepted: a certification body paid directly for the very certificate it awards. We have chosen a different path. Through our Third Party Independent Auditor Scheme, which operates under the control of the accreditation body rather than the certification body, audit judgement is held firmly independent of commercial interest.

It is in that same spirit that we pioneered our Gold & Silver Rating Certification programme, structured so that conflict of interest is reduced to the absolute minimum and the credibility of every decision is protected.

An ISO certificate issued by ACS-GP is therefore far more than a document. It is an independent affirmation of an organisation's genuine commitment to, and compliance with, its management system. That is the standard we hold ourselves to, and the assurance we extend to every client.

Dr. Adrian EstesChairman & Chief Executive, ACS-GP

Our Purpose

Mission & vision.

Our Mission

To empower organisations worldwide with impartial, value adding certification and training that drive operational excellence, ensure compliance, and foster continual improvement in their management systems.

Our Vision

To be the certification body most trusted for independence and integrity, recognised for expertise, innovation, and a genuine commitment to helping organisations grow through internationally recognised standards.

Our Impact

The numbers behind the reputation.

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Companies Certified
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Certified Lead Auditors
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Countries Served
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Certified Trainers

What Guides Us

Our core values.

Impartiality

Certification decisions independent of the audit team, with conflicts of interest actively managed.

Integrity

The highest ethical standards and full transparency in everything we certify and teach.

Expert Guidance

Certified professionals with real sector experience supporting you through the whole journey.

Value Addition

Audits that measure efficiency and effectiveness, turning your system into a real asset.

Continual Improvement

Ongoing surveillance and support to sustain performance and compliance over time.

Global Reach

Serving clients across 50+ countries with local expertise and international standards.

Work With Us

Join our network.

Explore partnership and career opportunities with ACS-GP.

Become an Approved Centre

Join our network of approved centres to deliver ACS-GP courses and certifications in your market.

Learn more

Join Our Team as Auditor

Become an auditor member. When an audit opportunity arises near you, we draw on your expertise to conduct it.

Join as an auditor

Partner for Training

Collaborate with us to deliver world class ISO and QHSE training to your customers and teams.

Get involved

Get Started

Ready to start your certification journey?

Join the organisations that trust ACS-GP for impartial, value adding certification and training.