Relux Informatik AG
- A lighting calculation program for Windows with free standard version for electrical lighting. Pro version adds daylighting and US format luminaire data import.
- http://www.relux.biz/

Rayforge Services
- Offers Olivia and Fiona software packages to check your outdoor lighting design for compliance with dark sky requirements and unobstrusiveness.
- http://members.ozemail.com.au/~rayforge/

Crouse-Hinds Luxicon Software
- Lighting calculation software targeted at industrial lighting applications.
- http://www.crouse-hinds.com/index.cfm

Trevor Caswell Software
- The Perfect Lite series of lighting calculation programs for MS-DOS.
- http://www.powerup.com.au/~trevorc/

AutoLUX
- Performs exterior direct lighting calculations within your AutoCAD drawing session.
- http://www.alux.org/

Lighting Analysts, Inc.
- Lighting calculation and visualization software for daylighting and electric lighting prediction. Products include AGI32, AGI-Light, Photometric Toolbox32 and WebZC.
- http://www.agi32.com/

Lighting Technologies, Inc.
- Lighting calculation software such as Lumen Micro and the Simply Lighting series.
- http://www.lighting-technologies.com/

Columbia Lighting
- LitePro is an indoor and outdoor lighting calculation program for Windows with color 3d display capability.
- http://www.columbialighting.com/programs/litepro.html

LightCalc Lighting Design Software
- Lighting calculation software for Windows and Macintosh. Allows to determine lamp selection and fixture spacing for general, task, and art lighting.
- http://www.lightcalc.com/

Adeline
- A lighting simulation and visualization package based on Superlite and Radiance.
- http://radsite.lbl.gov/adeline/

Architectural Lighting Design Software - Rayfront
- Radiance based lighting design and architectural visualisation software. Comprehensive lighting design glossary.
- http://www.schorsch.com/