A poster in reddit named AeroSpaceChair put up an item pointing out that at least three N.H. firms provided products used on the James Webb Space Telescope. (The post is here.)
+ Appli-Tec of Salem. Appli-Tec Part of Historic NASA Goddard Webb Space Telescope Project
+ Timken Co. of Keene (bearings) Enabling the Most Powerful Telescope Ever Constructed – The Timken Company
+ Corning Specialty in Keene and Optical Solutions in Charlestown: (spectograph) Science Instruments (stsci.edu)