top of page


Mr. Donald Friedman is one of the co-founders of SEI. Mr. Friedman has been in auto safety for over 40 years. A few of his accomplishments are his work on the SideWinder Missile, the Lunar Rover and the Minicars Research Safety Vehicle. He was instrumental in the early work on airbags, including testifying before the U.S Congress in the 1970’s to make airbags mandatory and is considered to be the leading expert in the United States on rollovers and roof crush.


Donald Friedman, Co-founder of SEI in Goleta, CA. sits in one of his test vehicles in front of his business. The 1977 Saab 99 he is sitting in was used in a roof strength test. (Photo by Stephen Osman).


Dr. Raphael Grzebieta, Co-Founder, holds the Chair in Road Safety at the NSW Injury Risk Management Research Center at the University of NSW. Grzebieta is also the immediate Past President of the Australasian College of Road Safety. He has over 26 years of research and practical experience in crash worthiness and road safety. Research teams he has led and been involved with have carried out crash tests and numerous computer modelling and theoretical studies investigating and mitigating injuries in rollover accidents. In 2004, Grzebieta was awarded the 2003 Warren Medal by the Institution of Engineers in Australia. 

Raphael Grzebieta, PhD, seated in a rolled SUV that met the US roof crush design rule with a narrow margin, demonstrating a typical level of roof crush experienced in a rollover often leading to ejection of seatbelted occupants.


Ms. Bozzini has over twenty-five years in business management and marketing experience ranging from retail, to service, to product promotion, and product development. Over her career she has provided quality management of businesses ranging in size from 2 to 25 million in sales and service contracts. She has successfully developed staff members for each business ranging from part-time retail employees to high level product designers to sophisticated forensic engineers, for the various business entities. Ms. Bozzini developed all contractual relationships to procure, promote, and sell the various manufactured products and services. She earned a BS in Business Administration from California State University at Hayward, CA. in 1998. Ms. Bozzini has studied the emerging needs and opportunities in the automotive retrofit markets for the last ten years and is one of the developers of the HALO™ concept.


Susie Bozzini - President of SEI


Javier Valadez - Head of Operations, Mexico/South America

Hector Alexis Soria.jpg

Alexis Soria - Project Supervisor


Edward Kawamba - Global Head of Marketing/Brand Managment

Eduardo Zamora.jpg

Eduardo Zamora - Certefied Installation Supervisor

bottom of page