We are proud of our numerous airframe and power & systems OEM and Tier 1 customer approvals with whom we have long-standing, strategic customer relationships.

Our customers rely on us to meet their quality specifications, standards, and processes. Sigma works closely with customers to uphold a scope of approvals for a range of airframe and power & system applications. We provide and maintain reliable products and services that correspond with the high-quality standards set by each customer.

Customer Approvals

Industry Memberships

We belong to and support a variety of industry associations. These enable us to stay current with market news and events, discover innovative solutions, and improve industry services and standards.

Contact Sigma

For more information about Sigma’s aerospace customer approvals or to find out how we can work with you to meet your quality requirements, please contact us.