Rockfon
FF&E Resources
BŌK Modern
Self-Supporting Metal Panel Systems, Dividers, Guardrails, Fencing, Canopies and More
García Requejo
Can find some Revit files for their dramatic designs here: https://www.archiproducts.com/en/garcia-requejo/products/bimtype_revit
Willowlamp
Olivelab
Studio Beam
llll light
Pretty stretched fabric lighting. Some revit files on archiproducts: https://www.archiproducts.com/en/llll/products/bimtype_revit
Stillux
Pilke lights
Birch lights
Aldabra
Linear, recessed, and spotlights. Some nice flexible ones.
Puff Buff
Blow up lighting - lots of fun.
TWENTYBRANDESIGN
Euroluce Light of Italy
They have a few Revit files on Archiproducts and you can request via form (though I haven't heard back).
ILFARI
Only a few Revit files on Archiproducts: https://www.archiproducts.com/en/ilfari/products/bimtype_revit
D'Armes
Some very nice light designs. Sketchup and STEP files.
Maytoni
Archilume
Minimalist, but striking LED lighting products, includes some nice chandeliers
Tokio.
Utu soulful lighting
LED Luks
A few of their fixtures are on archiproducts
Arkoslight
Minimalist, modern light fixtures. Pendants, recessed, track, outdoor. I like the Alaska Trimless - a ceiling mount globe light - small and interesting.
Cameron Design House
Stunning chandeliers, a few of their simpler products have Revit downloads.
Cameron Design House
Liqui Contracts
Small catalogue of playful lighting
Liqui® Contracts
Ross Gardam
You need to fill in a form to request that they send you the 3D Files
Il Fanale
Italian brass lamps
Oblure
Really fun, playful lighting. A few revit files on archiproducts: https://www.archiproducts.com/en/oblure/products/bimtype_revit
Brokis.cz
Fun, lovely designs, but limited Revit files - some can be found on Archiproducts (for Memory, a "balloon-like" ceiling light). Lots of great designs, though. Perhaps can import sketchup files?
Furniture (Contract/Commercial)