Compliance Assurance
Raba Kistner provides full-service environmental permitting and compliance services for design-build and other transportation infrastructure projects.





Kiwa provides independent assessment and assurance of aviation assets, facilities, and supporting systems, focusing on safety, compliance, and operational performance.
Failures in aviation systems can have severe safety and operational consequences. Independent oversight supports risk management and regulatory confidence.
Kiwa delivers unbiased, technically robust evaluations aligned with aviation standards and operational realities.
Yes. Our expertise spans the full aviation ecosystem.
Yes. We minimize operational disruption.