The Authority in Grill Service

Establishing the public body of knowledge, verifying professional competency, and ensuring consumer safety.

"We are the most prestigious grill service competency and standards credentialing organization in the industry."

The American Grill Service Institute (AGSI) was founded to address a critical gap in the home services market. As outdoor kitchens become more complex, the need for qualified, verified professionals has never been greater. We exist to separate informal service providers from documented, competent professionals through rigorous, independent examination.

Executive Leadership

Executive Director

Matthew Brunken

MBA, Univ. of Nebraska Fluid Dynamics Diagnostics Legal & Regulatory Background

Matthew Brunken brings a rare combination of technical mastery, business acumen, and regulatory expertise to the leadership of AGSI.

As the owner of Husker Grill Cleaning, the largest and most awarded grill service company in Nebraska, Matthew has hands-on experience with the complexities of modern outdoor appliances. His technical expertise extends beyond basic maintenance into fluid dynamics diagnostics and complex mechanical repair, forming the basis for AGSI’s rigorous technical standards.

Prior to his success in the service industry, Matthew was a successful paralegal. This legal background provides AGSI with a unique advantage in creating defensible, liability-aware standards that protect both consumers and practitioners. He holds an MBA from the University of Nebraska, ensuring the institute operates with the fiscal and strategic discipline required of a certifying body.

Under his direction, AGSI has established itself as the definitive credentialing authority, ensuring that the "Certified" designation represents true, verified competence.

Call for Subject Matter Experts (SMEs)

AGSI is continuously expanding its Certification Standards & Competence Framework. We are seeking recommendations for Subject Matter Experts in fields related to thermodynamics, metallurgy, gas safety, and appliance manufacturing to serve on our technical committees.

Submit a Recommendation →

Contact Us

For inquiries regarding certification verification, examination scheduling, or media requests, please contact our support team.

American Grill Service Institute
Omaha, Nebraska