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

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/

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

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

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/

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

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

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

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/

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/