Lens, Spectacle, Non-Custom (Prescription)
17 US facilities across 11 states are recorded as making this. Every entry below says where the claim came from — a federal registry, the company’s own website, or the company itself. Nothing here is paid for or ordered by anything but name.
| Facility | Where | Recorded by |
|---|---|---|
| GENTEX OPTICS | DUDLEY, MA | federal registry |
| RANDOLPH ENGINEERING, INC. | RANDOLPH, MA | federal registry |
| THE HILSINGER COMPANY PARENT LLC | MANSFIELD, MA | federal registry |