Divisions
Services
North American Partnerships
Drug & Alcohol Tests
COR Audits
Health & Safety Management Systems Built
Audiometric Tests
The SDI Group uses the Plan-Do-Check-Act approach to system excellence.
The SDI Group is a Health and Safety consulting firm, offering specialized services in partnership with our clients to find solutions that meet non-traditional needs.
We build and manage customized systems for clients in many sectors that enhance their current business model. Together our staff serve over 150 partnerships across North America.
We are CRSP’s (Canadian Registered Safety Professionals) along with our team of Audiometric & Substance Screening technicians. Whether it is certified COR Auditors, Trainers or Occupational Hygiene, the SDI Group can support you.
The SDI Group is recognized by the International Competency Assessment Board as a leading competency adviser to industry.
Our Corporate Team
Blair York, Cheryl L’Arrivee, David Williamson & Rosalie Gray
David Williamson
Founder
Contact Info
Email: [email protected]
Phone: 780-932-7449
Bio
David A. Williamson is one of the most sought after Health and Safety Professionals in North America with over twenty years’ experience. David has always been known for his leadership in providing solutions to clients needs, which is one of the driving forces behind the SDI Group.
David began his career in Edmonton instructing WHMIS and further developed his skills in Fort St. John, B.C., working for Texaco Canada. In 1999, after working as a regional and corporate manager, David founded the SDI Group.
SDI Group started small, conducting COR audits and training, but quickly grew into managing several companies that covered all aspects of a Health and Safety Management System. David completed the Health and Safety certificate program in 2003.
In 2005, David sat on the Canadian Society of Safety Engineers’ executive to support the profession. David continued by writing and receiving the Canadian Registered Safety Professional designation in 2005. In 2009, David received his Certified Health and Safety Consultant (CHSC) designation. In 2010, David was elected as President of the Town of Tofield’s Chamber of Commerce, where he served until 2014. In 2011, David was named to the Board of Canadian Registered Safety Professionals as a governor, where he served for two terms. The Board represents the highest designation a Health and Safety Professional can achieve. David currently sits on the BCRSP National Education Symposium and is an BCRSP Ambassador to new CRSP’s.
David has worked extensively in the Education, Agricultural , Municipal, Manufacturing, Construction and Oil and Gas sectors. David’s communication skills allows clients to see how a well-developed Health, Safety Management System can enhance any business model. David’s vision in providing solutions for SDI Group clients has made him a trusted resource for any organization needing non-traditional solutions to achieve Health, Safety and or Quality excellence. David is also a sought-after speaker and educator, speaking and teaching at many events throughout Western Canada.
David has many passions in life. This includes working with young entrepreneurs to develop their visions of success. David also lends his time speaking at board luncheons, start up conventions, mentoring future professionals and is an advisor to numerous business leaders on Health and Safety directives.
Cheryl L'Arrivee
VP, Operations
Contact Info
Email: [email protected]
Phone: 780-264-3455
Bio
Cheryl is the SDI Group VP of Operations and has been the team’s engine since day one. Cheryl graduated from the NAIT Occupational Health and Safety Diploma Program in April 2010. Cheryl joined the SDI Group shortly after and was promoted to Project manager in 2012. Cheryl continued her path in Health and Safety by writing and receiving the Canadian Registered Safety Professional designation in 2015.
In 2017, Cheryl was promoted to VP of Operations and manages the team’s valued client partnerships to ensure the highest quality of service. In 2018 Cheryl received her Occupational Screening Instructor Certification. Cheryl is also an external auditor and trainer for the SDI Group, along with managing several of our client contractor databases. In 2018, Cheryl received her certificate for the Scott Air Supplied Products Specialist Level Course. Cheryl is also an internal ISO auditor and provides consultation to many of our clients based on her expertise in health, safety and quality along with her extensive knowledge of occupational hygiene.
Blair York
Operations Manager
Contact Info
Email: [email protected]
Phone: 780-265-6240
Bio
Blair graduated from the NAIT Occupational Health and Safety Diploma Program in April 2018. Blair began his safety career with SDI Group April 2017, working as a summer Co-Op- student, then part-time while completing his last year of schooling. He started full-time as a HSE Technician after graduating the program with Honors.
Prior to beginning his studies, Blair achieved his Journeyman Carpentry Certificate in 2011, and then later obtained his NCSO (National Construction Safety Officer) certificate in 2014. Furthermore, Blair has also obtained his Drug and Alcohol Technician Certificate in 2017. In 2019, Blair received his Audiometric Technician and has conducted hundreds of clients tests. Blair is also COR auditor to support our clients with strong audit results. His experience in commercial construction has reassured his aspirations in the health and safety industry with the goal of providing a healthy and safe work environment for everyone.
Rosalie Gray
Indigenous Business Relations Manager
Contact Info
Email: [email protected]
Phone: 780-819-9279
Bio
Rosalie Gray is the SDI Groups Indigenous Business Relations Manager and partner in SDI Mobile. Rosalie is a consultant in the Energy Sector specializing in Communication, Industry Relations, Procurement, Engagement and Negotiations. Rosalie is a highly respected business development specialist with proven success in driving sales and revenue growth. Rosalie is experienced in all market conditions to meet aggressive business goals either as an individual contributor or leading a high-performance team. Rosalie is also known for her versatile sales style adept with prospecting, business development, account management, solution/relationship selling, negotiating and closing at all levels.
Rosalie possesses vital experience in communications, project management, research, policy development and data analysis. Rosalie has worked as the Communications Manager for Statistics Canada, Western Region and Northern Territories to establish relationships with the various clients within the region. Rosalie has extensive experience of Federal, Provincial, Private Sector and other funding agencies/service providers and resources which are available for individuals and businesses seeking strategic assistance. Rosalie supports all political and non – political organizations of indigenous peoples across this country. Rosalie’s passion for development of joint partnerships with industry and governments is second to none. Rosalie specializes in the areas of, economic development, resource management, and the development of business partnerships based on the principles of collaboration and cooperation of our stakeholders.
Rosalie possesses a Bachelor of General Studies with a designation in Arts & Science from the University of Athabasca.
Tanis Stamatelakis
Controller
Contact Info
Email: [email protected]
Phone: 780-405-0195
Contact Info & Bio
Tanis achieved her CPA designation through the legacy Chartered Accountant program. Her experience spans more than 20 years at both national and local accounting firms. Her professional but flexible work style allows her to adapt to both the SDI Group’s needs and assist in a wide variety of client environments. Tanis has extensive knowledge in cloud-based accounting software and supports the team in the utilization and technological changes in the bookkeeping and accounting industry.
In her spare time, she sings in the chorus of the Cosmopolitan Music Society and is treasurer on the board of directors of the Old Strathcona Performing Arts Centre Society. You can also find her watching her kids play soccer, participating in group fitness classes at the local YMCA, and checking out local artists and makers at craft fairs throughout the Edmonton area.
Lea-ann Gerling
Webmaster & Marketing Support
Contact Info
Email: [email protected]
Phone: 780-719-7960
Contact Info & Bio
Lea-ann Gerling has been a trusted resource partner for SDI Group’s visual platforms.
Lea-ann founded Chick-a-Dee Web & Graphic Design, a company that provides a well-rounded support system for entrepreneurs & small businesses.
With a passion for photography that began at a young age, Lea-ann started her career in 2010 as a photographer specializing in HDR Architectural Photography. Over the years, her business evolved and eventually became CHICK-A-DEE Web & Graphic Design, now focusing on providing exceptional graphic and web design services.
Today, Lea-ann’s dedication to helping entrepreneurs & small businesses thrive has helped her build a reputation as a trustworthy and reliable partner in their success.
Alyssa Knelsen
Administration
Occupational Testing Technician
Contact Info
Email: [email protected]
Phone: 780-242-4383
Bio
Alyssa graduated with a diploma in Advanced Medical and Legal Administration. She has worked in various fields such as Legal, Powerline Construction, Agriculture and Oil & Gas and has contributed to administrative and many Health & Safety environments. This experience has enabled her to understand the importance of Health and Safety Management.
Alyssa became a Health Care Aid working both in Long Term Care and in Acute Care directly with patients, thus contributing to Health and Safety Policies and Procedures as a team member. Alyssa feels that health and safety should always be encouraged as work environments constantly evolve.
Raj Sangha
Health & Safety Consultant
Occupational Testing Technician
Contact Info
Email: [email protected]
Phone: 780-263-9684
Bio
Raj began his career in Environmental Sciences before transitioning into Occupational Health and Safety from the University of Alberta. He is currently working towards his CRSP designation in 2022.
Raj has worked with a variety of clients to develop their health and safety management systems including prep for COR audits. Raj has experience performing hazard assessments, site inspections, toolbox talks and leading Joint Health & Safety Committees. He strives to ensure clients understand the importance of health and safety in the workplace to make it part of the daily work routine.
Raj is always looking to expand his horizons by learning all facets of the health and safety profession. He believes that there is always room to grow, something he encourages all around him to do.
If Raj is not playing tennis, vollyball or basketball, you can find him running or doing photography and listening to music.
Shanaaz Dredge
Health & Safety Consultant
Occupational Testing Technician
Contact Info
Email: [email protected]
Phone: 780-235-1562
Bio
Shanaaz Dredge is a dedicated health and safety professional passionate about promoting safe working environments. Her journey in the field of Health and Safety began when she worked as an Education Assistant, where she recognized the importance of providing a safe and healthy environment for students and staff. Her dedication to this cause led her to pursue further education and certifications in the field.
In 2022, Shanaaz earned a Health and Safety Administrator designation from the Alberta Construction Safety Association (ACSA). She also completed a Certificate in Health and Safety from the University of Northern British Columbia in the same year. With her diverse educational background and hands-on experience in the field, Shanaaz is equipped with the knowledge and skills needed to develop and implement comprehensive health and safety management systems in numerous industries. Shanaaz is also an occupational screening technician committed to ensuring employees are safe, healthy, and productive. In addition, she strives to create a safety culture in every workplace she works with.
Cody Koll
Health & Safety Consultant
Occupational Testing Technician
Contact Info
Email: [email protected]
Phone: 780-235-5845
Bio
Cody has received his Occupational Health and safety Diploma from Northern Alberta Institute of Technology in May 2020. During his cooperative experience Cody conducted incident investigations using a variety of different root cause analysis tools. In addition, Cody also worked on document development such as creating hazard assessments, and safe work practices and procedures. Cody also obtained his drug and alcohol technician certificate in 2019 and will be working towards his CRSP designation in the future. Cody is a member of the Driftpile Cree Nation.
Heather Phipps
Health & Safety Consultant
Occupational Testing Technician
Contact Info
Email: [email protected]
Phone: 780-504-8117
Bio
Heather Phipps graduated from NAIT’s Occupational Health and Safety program in 2015 and received a certificate for Industrial Emergency Management in 2016. She is also a certified Health and Safety Administrator with an Advanced First Aid certificate.
Heather completed her NAIT summer co-op with SDI Group in 2014, which helped prepare her to work in a myriad of industries, including construction, oil and gas, manufacturing, and food production.
Heather firmly believes that everyone at a work site can contribute to a company’s health and safety program and strives to get input from employees at all levels.
When not spending time with her family, Heather enjoys playing video games, Dungeons & Dragons, and making miniatures.
Alysa Ferguson
Health & Safety Consultant
Occupatinal Testing Technician
Certified Instructor
Contact Info
Email: [email protected]
Phone: 780-995-4161
Bio
Alysa Ferguson joined the SDI Group in 2018 and is one of the group’s certified first aid instructors.
Alysa has instructed students in numerous first aid courses supporting them and their organizations. Alysa is also an occupational screening technician.
In 2023 Alysa completed her Medical Technology course to support the SDI Group health division further. Alysa also supports many clients’ health and safety management systems to achieve their goals.
Imrin Sidhu
Registered Nurse
Contact Info
Email: [email protected]
Phone: 780-242-4383
Bio
Imrin graduated with a BScN from the University of Alberta in June of 2015, and received a diploma in Psychiatric Nursing from Macewan University in 2013. During the course of these programs, she gained experience in the fields of Medicine, Surgery, Adult Psychiatry and Postpartum care. She has worked in an acute care hospital setting for nearly a decade, with a focus on mental health, specifically in the treatment of eating disorders. Imrin’s practice is guided by compassion, and a holistic approach, where mental and physical health are equally valued.
In the medical field, where information is constantly evolving, she is continually learning and researching, to provide the best practice in safety, primary health, and prevention.
When Imrin is not working, and spending time with her family, she spends much of her time pursunig her passion in contemporary abstract painting. As a self-taught and emerging artist, she began exhibiting some of her artworks professionally earlier this year.