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About CIS

“Over the past 30 years, Corporate Investigation Services has become a trusted resource for HR Professionals and Business Owners; helping with workplace investigations and strike response services across Canada.  Because we believe in being preemptive, we also offer employment background checks to help reduce the need for investigations when possible.”

– Guy Parent, CEO & Founder


To provide unbiased third-party information to assist organizations to protect their most valuable asset – their people.


To become the most trusted resource helping to mitigate employee related risks through facts and consultative approach.



Corporate Investigation Services (CIS) begins its life as London Protection & Investigations.  Founded at 75 Main Street in Lambeth, Ontario by partners Guy Parent and Phil Thompson, the company is formed in response to the closure of their former employer, Can Am Protection.  In December 1988, Fleck Manufacturing contracts CIS to closure their plant so they can relocate operations to Mexico.

CIS pursues investigation and strike response opportunities throughout Southern Ontario; and opens an office in Windsor, Ontario to serve the automobile industries need for investigations of WSIB fraud and abuse.

CIS establishes an office in Vancouver, B.C. in response to a prolonged strike in Richmond.  CIS also forms a Retail Investigation Division in London, Ontario with investigators dedicated to apprehending shoplifters, as well as a covert CCTV installation division.

After five years of partnership and a steady increase in business, Parent and Thompson mutually agree to discontinue their partnership.  Guy Parent, now sole owner and president of CIS, retains the Windsor branch office and relocates the Lambeth main office to 2410 Main Street.

Thanks to a two-year growth spurt, CIS moves from renting facilities at 2410 Main Street to purchasing 2417 Main Street.  At this time, Corporate Inquiry Systems is born in response to our customers needs:  we would help HR Managers evaluate and qualify their employees, and thus reduce the need for investigations.

Outgrowing the main office at 2417 Main Street, CIS also purchases 2410 Main Street as its second location.  The additional office space accommodates the Investigation and Labour Unrest Services, with room for growth.

In January, CIS opens an office in Hamilton, Ontario and by August an office is established in Ottawa.

CIS creates Forensic Kinesiology and Computer Forensics as value-added in-house services, run from its Hamilton office.  In addition Corporate Inquiry Systems transfers operations to Hamilton.

Additional divisions introduce new services like seminars and workshops, generating educational and training options for existing and prospective clients.

CIS begins to link together its Background Screening, Investigations, Labour Unrest Management, and Seminars and Workshop services to develop a “one-stop: shop operation.

A shift in CIS management raises Labour Unrest Management to new heights.  With new talent and new ideas on board, the strike division launches with innovative approaches to managing labour disruptions and plant closures, handling mass lay-offs, and streamlining services that had been weakened by routine and complacency.

Seeing a highly competitive pre-employment screening market emerge, Corporate Inquiry Systems makes changes to outperform its competitors.  With new management, Corporate Inquiry Systems refines its sales initiatives and sets itself on a path to the highest quality of service.

Corporate Inquiry Systems doubles its revenue and personnel, having made significant headway in its reinvention.

Corporate Investigation Services enjoys continued growth and remains one of the few privately owned Canadian agencies providing essential services to workplace management.  To better meet client needs across the services, Corporate Inquiry Systems and Corporate Investigation Services are brought together as one brand under the Corporate Investigation Services banner.

Senior Executive Team

Lisa Hamacher

Manager of Operations, CSO

Lisa Hamacher

Organizational and leadership skills come naturally to Lisa.  Her ability to orchestrate the moving parts required in conducting background searches while combined with her attention to detail makes her an integral Management asset to directing the 100’s of pre-employment screening files that Corporate Inquiry Systems (C.I.S.) handles in a day.


As Manager of Operations, CSO, the staff at Corporate Inquiry rely on her leadership and high energy to remain motivated in order to provide the quality, integrity and responsive reporting that C.I.S. clients have become accustomed to. Lisa’s upbeat and always friendly client service manner endears all those who find themselves dealing with her.


Speaking for ourselves at CIS and on behalf of our clients, we are fortunate to have Lisa’s 6 Years of Human Resource and Safety experience to draw on .... not to mention being trained and licensed as a Private Investigator.  Oh yes, she is !

Lloyd Stacey

Director of Training and Operations

Lloyd Stacey

Lloyd has over 30 years of management experience across an array of operational environments and is highly regarded in the security service industry. His background includes executive level leadership in service operations, retail & corporate loss prevention, and auditing.  A military veteran, Lloyd has leveraged his operational experience to deliver results with integrity, commitment, and enthusiastic professionalism. Lloyd is a member of the International Association of Interviewers and a Certified Forensic Interviewer; to name a few of a list of lifelong accomplishments.

As our Director, Training & Operations Lloyd is based in London, Ontario and is responsible for planning, logistics, and the implementation of security operational plans for the labour unrest and strike management division.

Lloyd directs and oversees all mandatory training and compliance for CIS employees.

Bonnie Collings

Financial Administrator

Bonnie Collings
  • Bonnie’s first 15 years at CIS have given fact finding and research support a dimension that is lacking with many Investigative agencies today.   Examinations into current legislation, trends and markets gives CIS the edge it needs to remain one step ahead of our competitors and provide our clients with the best practice information they need as decision makers.
  • As of 2019, Bonnie has assumed the role of Financial Administrator with responsibility for full-cycle accounting and supervision of our administrative support staff.

Michael Glavin


Michael Glavin
  • With 26 Years of experience, Michael oversees all aspects of the Corporate Investigation Services.
  • Highly respected and in demand for his expertise in interviewing techniques, investigative management style, statement analysis, undercover and surveillance operations, Michael leads the field in these and many other areas of expertise.
  • A hands on leader whose practical skills in all services that CIS provide is a result of Michael’s mentoring and training of those at every level within the organization including many clients who rely on his expertise.

Guy Parent

CEO & Founder

Guy Parent
  • Dedicated to the Security and Investigation Industry for 39 years having founded Corporate Investigation Services in 1988 to later start Corporate Inquiry Systems in 1994.
  • Past President and active member of many Security and Investigative related organizations, College Instructor, Lecturer, Seminar orator and narrator.
  • There are very few who can boast of being “self- made”. The success CIS enjoys is attributed to having the most knowledgeable and experienced personnel in the industry on board.