Pennsburg, PA (May 1, 2023) — Penn Optical Coatings, an ITAR-registered provider of high-precision standard and custom optical thin film coatings, announced today that it has obtained the ISO 9001:2015 certification. Penn Optical Coatings is now one of a select few ITAR-registered and ISO-certified coaters that can provide robust testing and rigorous quality control, supporting leading optical fabricators and optical catalog companies throughout the US.  

Optical component and systems providers are a growing and vital part of the supply chain in the medical device, biotech, defense and aerospace, science, automotive, and industrial segments. To meet these industries’ needs and regulations, traceability and reporting are of growing importance at every step in the manufacturing process. Penn Optical Coatings pursued ISO 9001:2015 certification to help customers meet those needs. 

Penn Optical Coatings CEO, Iain MacMillan, stated, “We have always had robust internal quality controls in place. ISO 9001:2015 is an important additional assurance to de-risk and simplify the procurement process for our customers. The philosophy behind ISO matches our mission: not simply to maintain quality systems, but to continuously improve.”

Penn’s quality system ensures not only a certificate of performance for every order but an inspection report with the results of every quality test conducted. With a long track record of successful delivery to MIL standards, Penn offers extensive testing capabilities in-house, including:

  • Spectral transmission
  • Environmental: humidity, temperature cycling, salt spray
  • Adhesion
  • Abrasion

The ISO 9001:2015 certification demonstrates Penn’s continuous investment in the quality systems its customers need to meet the emerging needs of diverse end applications with anti-reflective and other thin film coatings.


About Penn Optical Coatings

Penn Optical Coatings is a trusted expert with 40 years of experience in developing and manufacturing high-precision optical coatings. Penn works with many of the top US-based optical companies from prototype to large volume, with optics ranging from 1 millimeter to 1 meter. Penn controls every step in an efficient optical coating manufacturing process—including a coating library of over 7,500 optical coating designs, in-house custom tooling and lean manufacturing processes—to deliver value, quality, and consistent results. Penn Optical Coatings is registered with the US DDTC for the manufacture of defense articles in compliance with ITAR. All coatings are produced in the USA. Learn more at


About ISO 9001:2015

ISO 9001:2015 is the international standard that specifies requirements for a quality management system (QMS). Organizations use the standard to demonstrate the ability to consistently provide products and services that meet customer and regulatory requirements. This standard is based on a number of quality management principles including a strong customer focus, the motivation and implication of top management, the process approach and continual improvement. Learn more at