About Raven Management Group

Raven Management Group (Formally Darkhaven Consulting Services) has been supporting clients since 2008. Starting out with one client in Kitchener, ON we have increased to over 100 clients ranging in size from 4 to 4000 employees. To further our bandwidth, we also increased our offerings to service clients throughout Canada, USA, Mexico and South America. We have taken pride in offering our client base great service while meeting their needs regardless of location, time or complexity of the issue at hand. With the strong belief of ensuring our clients success, we will ensure our success. As a true testament of our commitment to our clients much of our company growth throughout the last 10 years has come from referrals by our current clients alone. Contact us today and see how we can help you succeed.
Workers Agreeing

What Clients Are Saying

I worked with Raven Management Group while at EBS Geostructural (C3 Group), RMG were very diligent in delivering and managing the health & safety program for the whole group. Their direction and cooperation with matters pertaining to health & safety were receptive and valuable with all parties best interest’s in mind. We continue to use RMG as a safety resource for Blackrock Foundation Solutions Inc.

Bob Gaetan


I worked with RMG during my time at Indalex. RMG is a very detail oriented firm and very professional in their duties. They are relentless when improving the safety culture and operations at Indalex Aluminum Solutions. Their dedication to achieve the company Safety goals allowed us to achieve the targets and still maintain our strategic budget guidelines. I would recommend RMG to any future firm who wishes to improve the work and culture Safety standards.

Bernie Lewis

VP & COO - CMC Sisak

RMG was respected for his willingness to help anyone with their “safety first mentality”. They were instrumental in the introduction of company-wide health and safety policies and procedures. Their professionalism and strong leadership skills were demonstrated by his ability to obtain buy in from all levels of the organization.

Georgina Scott

HR & Compensation Consultant

I worked closely with RMG during our time with Indalex. RMG started their operations at Indalex by surfacing and investigating serious safety and WSIB issues at the Mississauga plant. Their skills and professionalism in that investigation provided the Company with critical information needed to change the culture and turn around the safety program. All of Canadian plants benefited from his safety first drive and his detailed understanding of all appropriate regulations, which resulted in significant safety turnarounds at four locations.I would be honoured to have RMG in a organization with me again.

William J. Corely

VP Human Resources - NorthStar Aerospace (Retired)

I had the opportunity to work with RMG in 2007-2008 while serving as the Operations Mgr. for Indalex-Mississauga, Ont. facility. The operation and I benefited from their in-depth knowledge of Canadian HSE and employment law, as well as, the US OSHA regulations. RMG was instrumental in delivering superior safety improvements and performance. In addition to their professional credentials, they was able to leverage an extensive network of Health Care professionals and agency officials to accelerate the facility's EHS improvement targets and goals. They proved himself to be a tireless leader for EHS. They would be an asset to any organizations seeking well qualified EHS professionals.

Robert Gregory

Plant Manager - Bonnell Aluminum

We originally hired RMG to review and update our safety plans, over a short period of time we have also contracted them to manage our human resources and security programs. Their excellent service, attention to detail and subject knowledge is second to none and we would recommend them to any firm seeking to improve their safety and human resources programs.

Ted Redlarski

President, Noram Enterprises

RMG was our full time safety and WSIB consultant at our Stratford Plant during my tenure at Vicwest, they greatly enhanced our safety training and WSIB claims management systems earning us rebates in all the years I was there. I have no hestitation recommending RMG to any firm that needs assistance in developing or maintaining their safety programs.

Sid Perron

Former Operations Manager, Vicwest Stratford

Our Team

Stephen Patterson

Managing Director
As Managing Director Stephen brings more than 20 years of experience and knowledge to the RMG team. He began his career within the public sector serving as a corrections officer, special constable and then as a rescue medic. From the various positions within the public sector Stephen had found his true passion of Workplace Safety. After completing his last project as a medic Stephen ventured into the private sector where he became a Regional Manager of Health and Safety with a large industrial company. Within this role he oversaw both the Canadian and US operations with over 1400 employees. After several years within this role Stephen decided to take the leap and embrace his entrepreneurial spirit to become an independent consultant. In 2008 Darkhaven Consulting Services was created to later become Raven Management Group. Stephen continues to play an active role with the RMG consultant team as the Senior Safety, OHS Consultant and Trainer.

Devin Patterson

Field Safety Staff
Devin has been part of RMG’s safety team since 2005. Backed with more than a decade of experience working within construction Devin is well versed with a variety of construction and industrial settings. Working on major projects throughout Ontario, Devin is able to bring not only experience but safety solutions that make sense. He is certified in WHMIS, Confined Space Watch, Lock-out/ Tag-Out, Fall Arrest/ Working at Heights, Confined Space Awareness/ Attendant, Mobile Equipment, Chemical Safety, Standard first aid & CPR/AED, CSAO Basics of Supervision Program, WSIB Certified Worker Representative.

Sophie Cranley

Manager, Workplace Safety and Risk Mitigation
Sophie has been with Raven Management Group since 2019. Starting as a Manager of Workplace Safety she transitioned into the firm’s General Manager in 2021. She comes with several years of unique experience within start-ups and large corporate entities. She began her career with a successful start up company specializing in remote security solutions within construction. In this position she spearheaded the investigations team and assisted in the guidance of monitoring staff and operations. From there she moved on to become a National Manager with a global corporate security firm. Within this role she was instrumental in guiding organizations through labour disputes, investigations, and security as a consultant. In her current position as a General Manager, she has oversight over the firm’s day- to day activities while consulting on several accounts for Human Resources and Security related services.

Diana Mihajlov

Health and Safety Consultant
Diana joined RMG in 2021 as a Health and Safety Consultant. She is a dedicated and experienced health and safety professional with a diverse background. Focusing primarily on our construction and manufacturing clients she has been instrumental in assisting clients navigate through day -to- day health and safety objectives, workplace investigations and programs. As a Conestoga College graduate she began her career at an industrial automation company, where she focused on employee engagement, developing and delivering training programs, and program administration. From there, she moved into a more demanding position that required assisting employers in creating safe and healthy work environments that were in compliance with the OHSA. She always keeps a positive attitude and maintains an open-minded approach to daily challenges. Diana is well-versed in the Health and Safety Excellence Program through WSIB, incident investigation, JHSC/WTC, and policy writing. She is certified in JHSC, standard first aid and CPR, and WHMIS. She is also very familiar with the OHSA, construction and industrial regulations, WSIB, and many other related areas. Diana is always ready to take on new challenges and meet new people.