We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Technology Stocks : NVIDIA Corporation (NVDA) -- Ignore unavailable to you. Want to Upgrade?

To: engineer who wrote (1818)4/8/2021 6:51:50 PM
From: Frank Sully  Respond to of 2485

They seem to be for real. They have a web site here.

Here is their history:

The story behind Lightmatter’s tech