John Evans' Sons a certified spring manufacturer, established 1850 as America's First srpingmaker. Picture of front of facility.John Evans’ Sons is certified to ISO 9001:2015, AS9100D, and ISO 13485:2016, supporting quality-critical spring manufacturing for aerospace, defense, and medical device customers. Please see the certifications and other affiliations below.

Our Quality Policy

John Evans’ Sons LLC manufactures a variety of precision springs, wire forms, and spring assemblies. We are dedicated to fully understanding and exceeding customer expectations through teamwork and the ongoing pursuit of technical and manufacturing excellence. We are committed to satisfying the requirements of, maintaining the effectiveness of, and continually improving our quality management system, which is based on the principles of ISO 9001:2015, AS9100, and ISO 13485:2016.

Current ISO Certifications

ISO 13485:2016 Click to open .pdf

ISO 13485:2016

ISO 9001:2015 & AS9100 Click to open .pdf

ISO 9001:2015 & AS9100

AAMA Verification Certificate Click to open .pdf

AAMA Verification Certificate

AAMA Verification Certificate Click to open .pdf

AAMA Verification Certificate

AAMA Verification Certificate Click to open .pdf

AAMA Verification Certificate

Fenestration & Glazing Industry Alliance Certificate Click to open .pdf

Fenestration & Glazing Industry Alliance Certificate

Other Affiliations

AAMA Qualification Visit AAMA

AAMA Qualification

John Evans’ Sons LLC is a member of the American Architectural Manufacturers Association. Our constant force balance springs including the SideLoad™ and Drop-In Series are AAMA qualified.

NBAA Member Visit NBAA

NBAA Member

John Evans’ Sons LLC is a member of the National Business Aviation Association (NBAA) The leading organization for companies that rely on general aviation aircraft to help make their businesses more efficient, productive and successful. Our constant force balance springs are widely used in aerospace applications.

SMI Member Visit SMI

SMI Member

John Evans’ Sons LLC is a member of the Spring Manufacturers Insitute (SMI) They serve, support and educate North American precision spring manufacturers in their pursuit of competitiveness in global markets.

Patriotic Employer Award Click to open .pdf

Patriotic Employer Award

We are: American Architectural Manufacturers Association (AAMA) Qualified, ISO 9001, AS9100:2015, and ISO 13485:2016. Members of the National Business Aviation Association (NBAA), and the Northeast Window & Door Association (NWDA).

Learn more about John Evans' Sons certifications.

What is the difference between ISO 9001:2015 and AS9100D?

AS9100D includes all requirements of ISO 9001:2015, plus aerospace-specific additions for product safety, counterfeit-part prevention, configuration management, and supply chain risk. A supplier certified to AS9100D meets both standards. John Evans’ Sons holds both certifications under one audited quality management system.

Who certifies John Evans' Sons' quality management system?

John Evans’ Sons’ quality management system is certified by Intertek, an accredited certification body, and is audited on a regular surveillance cycle. Current certificates for ISO 9001:2015, AS9100D, and ISO 13485:2016 are available on this page and provided directly for supplier qualification on request.

Why does ISO 13485:2016 matter when sourcing springs for medical devices?

Springs inside a medical device are subject to the same regulatory scrutiny as the device itself. Sourcing from an ISO 13485:2016 certified spring manufacturer provides documented design controls, process validation, and full lot traceability, which shortens supplier qualification and strengthens the OEM’s own regulatory submission. Learn more on our medical devices industry page.

Are John Evans' Sons window balance springs AAMA qualified?

Yes. Our constant force balance springs, including the SideLoad™ and Drop-In Series, are qualified through the Fenestration & Glazing Industry Alliance (FGIA), the organization formed by the 2020 merger of AAMA and IGMA. Qualification documentation is available on this page for window manufacturers.