Kopp Glass is the worldwide leader in hand molded, technical glass manufacturing. For over 90 years we have developed unique glass solutions for technical, industrial, and commercial applications. We specialize in custom, small lot glass manufacturing and offer an expansive portfolio of glass compositions that feature transmission properties from the UV to visible to IR wavelengths.

We believe the best products are the result of collaboration; we work with our customers at every stage of product development, from initial concept, to design, manufacturing, and photometric and material testing.

Because we operate in a single, integrated manufacturing facility, we are able to quickly respond to our customer’s needs. Our diverse team of expert engineers, creative mold designers and fabricators, and highly skilled glass craftsmen collaborate with our customers to help them bring innovative, competitive products to market.


Year Founded: 1926
Ownership: Closely Held
Location: Pittsburgh, PA, USA
Number of Employees: 150
Facility: 127,000 square feet
Quality System: ISO: 9001 Certified

Download our corporate overview for more information.



Borosilicate glass is a strong and durable material that is well suited for harsh environments. Long exposure to ultraviolet light, chemicals, salt, and other abrasive materials has little to no effect on it.

These unique material properties make glass an ideal material for demanding industrial applications that range from marine obstruction lighting to UV non-destructive testing equipment and exterior aircraft lighting. Learn more about the industries and diverse applications we develop glass solutions for:





Our unique production capabilities give us the flexibility to scale glass melt volumes and meet aggressive lead times. On any given day, we have up to 15 different glass compositions in melt. This means our customers can get custom glass compositions quickly instead of waiting for months or more. Glass melt volumes can range from 0.5lbs to up to 2,500lbs. We also offer contract melting services, glass be supplied as molded pieces, billets, frit, or cullet.

Our glass lenses are designed to meet customer specifications for:

  • Light transmission and distribution
  • Chromaticity
  • Complex contours that conform to strict tolerances
  • Thermal and physical durability
  • Chemical resistance
  • Ultraviolet (UV) stability

How can we help you?

Discuss your custom glass need with a technical expert today

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