Beta-Calco

Lighting
Schonbek
Luxury Chandeliers
Modern Forms
Some charming pendants. Not all have revit files, but: Amari, Ventrix, Arcs, Double Bubble, Veloce, Minx, Illusion, Echelon, Hustler, Bough, Intrasection, The Ring, Racetrack, Cosmic, Scissors, Memory, Riddle, Magic, Stormy, Yolo, Ilios, Tempest, Tidal, Carillion, Sydney, Acropolis, Starbright, Fury, Cinema, Bloom, Chronos, Mies, Zelda, Chaos, Fluffy, Stacked, Kinetic, BDSM, Drift, Catalyst, Gilt, Marimba, Cambridge, Lucid, Metric, and Zenya do.
Kaishi Lamps
Örsjö Belysning
Fun, unique lighting. Quite modern.
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.
Vibia
Simes S.p.A. - Home Page
Lumenwerx
Solid fixtures
DAISALUX
EMERGENCY LIGHTING
Warm Nordic
Petite Friture
Nyta
You can request access to the 3D Downloads.
Nuura
Anglepoise Lamps
Artika Pro - Professional Lighting Solution
Visual Comfort & Co.
Kuzco Lighting
A few of their lights have Revit files (but not all).
Zemper
Luznor
Emergency Lighting and Professional Torches
Schneider Electric Canada
Specialist in Energy Management and Automation
Axolight
You can find some of their lights (DWG, 3DS, DXF) on Archello: https://archello.com/brand/axolight/bim
Intra Lighting
Modern, slick professional lighting. Revit files: https://www.bimobject.com/en/intralighting
BPM Lighting | Arquitectural and Engineering Lighting
Modo Luce
Barrisol® stretched ceiling
They have Revit files for their stretched ceiling configurations, and you can find some of the luminaires on Archello and BimObject. I like their Manta prodcut.
Fabbian.us
Nice selection of decorative lighting. Many have Revit files (or dwg).
Forestier Paris
Nice, organic shapes. Lots of natural textures. They don't have 3D files, but you can buy them (OBJ, etc) on: https://greatcatalog.net/en/forestier-b2529/
Rakumba - Decorative Lighting