Smeg
Revit files for almost all of their products are found at Bim&Co
FF&E Resources
Plumbing
Laminates (Millwork)
Decor (Drapery, Rugs, etc)Cariboni Group
Cariboni specializes in high-performance lighting solutions - LEDs for urban, street, arenas, and more architectural applications (not really decorative). They do have a cool urban system called spoon, which is pretty stylish.
Lighting
Floors - Soft (Carpeting, etc)
Textiles
Paint + WallpaperHEWI
Sanitary and hardware solutions - most RFA files on Bimobject.com
Equipment#dispensers#mirrors#shelves#grab bars#specifications#hardware#locks#ADA Compliant#RFA Revit#DXF Autocad
Tiles
Blu Dot
Not sure if this is contract grade furniture, but I signed up for a trade account and 3D files and spec sheets are available.
Furniture (Contract/Commercial)#chairs#tables#desks#lighting#accessories#storage#beds#specifications#3DS Max#RFA Revit#SKP Sketchup#2D CAD#sofas
Windows + DoorsCOR
I've used many of their lounge seats, including "Shrimp" and Nenou. They provide downloads here: https://www.cor.de/en/downloads (and on BIMObjects)
Furniture (Contract/Commercial)#contractfurniture#chairs#configurator#specifications#tables#lounge#workstations#3DS Max#RFA Revit#SKP Sketchup#2D CAD#sofas
Acoustic Finishes + Furniture
Metals + Coatings
Floors - Hard (Wood, Resilient, Cork)