Simon is a licensed professional engineer in Alberta, British Columbia, Manitoba, Saskatchewan, California and Illinois. He specializes in forensic structural investigations and the rehabilitation and restoration of existing structures. His experience also consists of new building design, tenant improvement, structural repair, structural remodeling, and special structural design. Simon is practiced in the analysis and design of all major structural materials: wood, steel, concrete, and masonry, and possesses sound knowledge of the Canadian and US building and design codes, including NBCC Part 4, the CSA standards, ASCE-7.

Mazen is the president of Origin and Cause and specializes in fire investigation, electrical and electronic failures, product liability and alarm system analysis. With over 35 years of experience in the industry, he has performed over 3,400 fire, product liability and alarm system investigations. Mazen is a licensed professional engineer and designated consulting engineer, and has qualified as an expert witness in both civil and criminal courts in four Canadian provinces and in the Commonwealth of Massachusetts, USA. He is also certified at two levels by the Canadian Alarm and Security Association as an alarm technician.