Andover Corporation: Precision and Passion in Optical Filters
For five decades, Andover Corporation has been a trusted leader in the design and manufacture of high-performance optical filters and coatings. Serving industries from defense and aerospace to biomedical research, astronomy, and environmental monitoring, our products are engineered to meet the most demanding technical requirements while delivering unmatched reliability.
Our expertise spans the full electromagnetic spectrum—from ultraviolet through the infrared—thanks to our
vertically integrated processes that cover every step from substrate fabrication to advanced coating, assembly, and metrology. This approach ensures superior quality, shorter lead times, and complete flexibility, whether for a single prototype or full-scale production.
At the heart of our portfolio are optical solutions that empower customers to achieve clarity, accuracy, and performance in their applications. Our
bandpass filters isolate precise wavelengths for imaging and sensing systems, while
ND filters attenuate light without distortion. In the infrared spectrum, our
IR filters deliver the precision required for defense, surveillance, and spaceborne platforms. With advanced
chalcogenide coatings, Andover provides a proven alternative to germanium, enabling lighter, more versatile infrared optics. For space and research applications, our
astronomy filters power observatories and satellites to capture the universe with unmatched fidelity.
Customers worldwide—from research institutions and OEMs to defense primes—choose Andover for our unique combination of technical expertise and customer-centric flexibility. Every product is crafted with precision and backed by rigorous testing, ensuring performance under the toughest conditions, including space flight, battlefield environments, and cutting-edge laboratories.
Andover Corporation is more than a manufacturer—we are a partner committed to solving complex optical challenges. With no minimum order quantities, customized solutions, and a proven track record across industries, we continue to set the standard for optical filter excellence.



