Illuminating Integrity in Lighting

Illuminating Integrity in Lighting

In Memory of Ian Ashdown

With intense sorrow, we announce the passing of our beloved friend, Ian Ashdown, PEng (Ret), FIES, Senior Scientist and co-founder of SunTracker Technologies Ltd.

Ian’s profound passion and dedication to lighting, unwavering commitment to scientific integrity, and remarkable expertise have left an indelible mark throughout his extraordinary career spanning over four decades. His contributions encompassed a wide range of academic articles, lighting standards, and software developments.

Beyond his renowned reputation as an engineer and scientist in the lighting field and beyond, Ian possessed a remarkable spirit of compassion. He selflessly assisted numerous individuals personally and professionally throughout their journeys.

Ian’s departure has left an immeasurable void; we deeply feel his absence. However, SunTracker Technologies remains unwavering in its dedication to preserving and advancing Ian’s exceptional legacy within the lighting community and beyond. 

For those wishing to convey their sympathies or have memories to share, don’t hesitate to contact us at

Lighting design software for architecture, horticulture, entertainment and health.

Created and refined over the past 30 years, our software has become an industry standard in North America and parts of Europe.

SunTracker Technologies Ltd.
& HelioSol Software Solutions Inc.

SunTracker and HelioSol have an exclusive worldwide arrangement to license SunTracker’s Suite of Cerise Software to the lighting industry as real world solutions to lighting design and engineering problems.

SunTracker was founded by the esteemed Ian Ashdown, Senior Scientist, to advance research and develop professional lighting design software for architecture, horticulture, entertainment and health based on over 30 years’ experience in the industry.

Our Cerise™ Suite of Products










Our Food Security

Recent public health events have highlighted the need for food security in local communities. In northern (and less hospitable) climates like Canada long term, year round food growth will depend on indoor facilities such as greenhouses, vertical farms (plant factories), and hybrid facilities. Proper lighting is critical for these facilities to successfully produce the necessary quality and quantity of food to sustain the population at a reasonable cost. SunTracker has developed CAD modelling tools to allow the horticultural industry to assess and specify the most efficient and effective commercial lighting for the horticulture industry, lighting that is critical for the sustainability of food security.

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