(1) The rebranding of Google Home products.  See 
Google Nest.
(2) (Nest Labs)  See 
Alphabet.
(3) (NEST) (
Novell 
Embedded 
Systems 
Technology)  Extensions to NetWare 4.x that provided networking to office machines and consumer products.  Originally touted as a connectivity protocol for everything from a VCR to a TV, NEST was primarily used in millions of print servers and some fax servers, implementing Novell's QMS printing protocol.  See 
QMS.