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The Key High Story.

Founded in 1976, Key High Vacuum Products, Inc. set out with a clear mission: to provide high-quality vacuum components at competitive prices. Initially serving the research and defense industries, the company quickly gained a reputation for excellence. Thanks to our employees' dedication and our customers' loyalty, we experienced dynamic growth, leading to our relocation in 1981 to our current facility in Nesconset, NY.
Throughout the early and mid-1980s, we expanded our product offerings to serve the semiconductor, coating, and industrial markets. This period marked a significant increase in our production capabilities, enabling us to meet the evolving needs of these industries. Our growth has been guided by careful planning, controlled expansion, and long-term sustainability.

 

We are thrilled to announce the launch of our new website, a significant step in our digital journey.

We continued our upward trajectory with expanded capital equipment upgrades for welding equipment and mass spectrometers, a clear testament to our unwavering commitment to our clients, growth, and innovation.

Covid Epidemic. Despite the challenges, Key High was declared an essential business.  We managed to keep our entire team employed, and our business thrived as “Work from home” became the norm.

Anthony J. Kozyrski Jr. “A.J.” assumes the role of President of Key High Vacuum Products, Inc.

Worked extensively with 3D printer manufacturers, developing products.

Greatly expanded our catalog offerings again, our second-bound catalog.

Large capital equipment expansion CNC Lathes, Mills, Welding Equipment.

Help develop unique weldments for the “Megatons to Megawatts Program.”

Awarded “Vendor of The Year” by a major manufacturer of vacuum tubes.

Major product line offering expansion, first bound catalog.

Developed large valves specifically for the Architectural Glass industry.

www.keyhigh.com launched.

We were honored to receive the Laboratory Equipment “Readers Choice Award” in recognition of our innovative products.

Developed specific weldments used for leak testing automotive airbags.

Developed the first successful pumping stations used for commercial MRI equipment.

Key High production capacity increased to supply the semiconductor, coating and industrial markets.

Tier 1 Supplier of high vacuum valves for the Nevada Test Site.

Key High grew rapidly and purchased its facility in Nesconset, NY.

First expansion, increased square footage at a former Helicopter manufacturer.

Tony & Betty Kozyrski founded Key High Vacuum Products, Inc.

 

 
Precision Welded. Performance Proven.
For 50 years, Key High Vacuum Products, Inc. has been a trusted leader in precision-engineered stainless steel high vacuum weldments. With tens of thousands of unique weldments in use—from particle accelerators to industrial leak detectors—our expertise is proven across industries. Rooted in innovation, craftsmanship, and an unwavering commitment to customer satisfaction, we deliver high-quality, customized solutions that drive success. Every day, our team brings a unique blend of passion and precision, ensuring your goals are met with excellence—because your mission matters. Experience the Key High difference.
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Key High Vacuum Products, Inc.
36 Southern Boulevard, Nesconset, NY 11767
1-631-360-3970
© 2025 Key High Vacuum Products, Inc.