When an employee leaves for a competitor, employers may worry about client relationships, confidential information, pricing strategies, referral networks, trade secrets, and whether knowledge gained during employment is being used to benefit a new workplace.
Not every competitive move is unlawful. Employees are generally permitted to change jobs and continue working in the same industry. Litigation may become relevant, however, where there are concerns about confidential information, restrictive covenants, solicitation, fiduciary duties, or unfair competitive conduct.
For Windsor-Essex employers operating in closely connected industries, a departure may require a timely review of the employee’s obligations, conduct, and potential impact on the business.
Competition Alone Is Usually Not Enough
The fact that a former employee joins a competitor does not automatically create a legal claim. Ontario employment law generally balances an employer’s ability to protect legitimate business interests with an employee’s ability to earn a living.
The central question is not simply whether the employee is competing. It is whether the competition involves a breach of a contractual, legal, or equitable obligation.
Examples may include taking confidential records, soliciting restricted clients, recruiting former co-workers contrary to a contract, diverting business opportunities, or using proprietary pricing information.
Reviewing the Employment Agreement
One of the first steps is reviewing the former employee’s contract. Employment agreements may contain confidentiality clauses, non-solicitation provisions, intellectual property terms, return-of-property requirements, and post-employment restrictions.
Ontario’s Employment Standards Act, 2000 generally prohibits non-compete agreements entered into on or after October 25, 2021, subject to limited exceptions involving certain executives and sale-of-business arrangements. While the amendment does not automatically void non-competes signed before this date, Ontario courts have historically only enforced them in highly specific circumstances.
Other protections may still apply. Non-solicitation clauses, confidentiality obligations, fiduciary duties, and breach of confidence claims can remain relevant. Their enforceability often depends on whether the language is clear, reasonable, and directed at protecting a legitimate business interest.
Non-Solicitation and Client Relationships
A non-solicitation clause may restrict a former employee from actively approaching clients, customers, suppliers, referral sources, or employees for a defined period. Litigation may arise where evidence suggests the employee contacted clients shortly after leaving, encouraged them to transfer their business, used internal client lists, or coordinated account transitions before resigning.
Evidence may include emails, CRM records, phone logs, access histories, client communications, and changes in business patterns. Courts may distinguish between active solicitation and a client independently choosing to follow the employee.
Confidential Information and Trade Secrets
Confidential information claims can be central to post-departure litigation. Protected information may include pricing models, customer lists, supplier terms, financial data, marketing plans, technical processes, tender documents, or internal communications.
Not all workplace knowledge is confidential. Employees may carry general skills, experience, professional relationships, and industry knowledge into future employment. Litigation is more likely to focus on information that is private, commercially sensitive, specific to the employer, and not generally available.
Concerns may arise where documents were downloaded, copied to a USB drive, sent to a personal account, accessed unusually close to resignation, or later used in dealings with clients or prospects.
Fiduciary Duties and Senior Employees
Some senior or highly trusted employees may owe fiduciary duties because of their authority, discretion, client influence, or control over an area of the business. A fiduciary employee may face restrictions beyond those applying to an ordinary employee. Potential concerns include secretly competing while still employed, diverting opportunities, soliciting clients before departure, recruiting employees for a competing venture, or using their position to obtain an unfair advantage.
Whether fiduciary duties exist depends on the employee’s actual responsibilities and influence, not merely their job title.
Pre-Departure Conduct
Post-departure litigation often turns on what happened before the employee resigned. Employees may generally make reasonable plans for future employment. Problems can arise when planning becomes active competition, misuse of company resources, concealment of conflicts, or diversion of opportunities.
Examples may include preparing a competing bid with employer information, encouraging clients to delay decisions until after the employee leaves, copying confidential files, or coordinating competitive activity during working hours.
A clear chronology can help establish when the employee accepted the new role, what information was accessed, which clients were contacted, and whether business shifted around the time of departure.
Demand Letters and Early Intervention
Before beginning litigation, an employer may send a demand letter to the former employee and, in some circumstances, the new employer.
The letter may request the return or deletion of company information, preservation of records, confirmation that confidential information has not been used, or an undertaking not to solicit restricted clients.
A focused demand letter may resolve the issue and create a record of the employer’s efforts to protect its interests. Overly broad demands or unsupported allegations, however, may create additional risk, particularly where they effectively prevent lawful employment.
Injunctions and Urgent Court Relief
An employer may consider seeking an injunction where immediate court intervention is necessary to prevent continuing harm. An injunction may be requested to stop solicitation, prevent misuse of information, require the return of records, or preserve the status quo while the dispute proceeds.
Courts generally consider whether there is a serious issue to be tried, whether irreparable harm may occur, and whether the balance of convenience favours the requested order.
Timing can be critical. Delay may weaken the argument that urgent relief is necessary. Employers seeking an injunction may need to act quickly, preserve evidence, and present a focused record of the anticipated harm.
Claims Against the New Employer
Litigation may sometimes involve the competitor that hired the employee. A claim may be considered where the new employer allegedly encouraged a contractual breach, knowingly used confidential information, participated in unlawful solicitation, or received improperly taken materials.
Hiring an employee from a competitor is not automatically improper. The issue is whether the new employer participated in conduct that crossed a legal boundary. Potential remedies may include injunctions, disclosure orders, damages, or orders concerning confidential information.
Preserving Evidence and Investigating Concerns
Evidence preservation is often essential. Employers may need to secure company devices, preserve email accounts, suspend automatic deletion settings, retain access logs, and protect CRM data from being overwritten.
An internal review may examine whether the employee exported information, forwarded documents, deleted records, accessed unusual files, or communicated with clients in a concerning manner. Relevant contracts, policies, exit materials, and property-return records should also be reviewed.
Investigations should remain proportionate, documented, and focused on legitimate business concerns to avoid creating privacy, workplace, or evidentiary issues.
Potential Remedies
Available remedies depend on the claims and evidence. They may include injunctions, damages for lost profits, delivery or deletion of confidential information, preservation orders, declarations, and costs.
Financial losses can be difficult to prove. Employers may need evidence linking the former employee’s conduct to lost clients, contracts, revenue, or other measurable harm. The fact that business moved to a competitor may not be enough without evidence of actionable conduct.
In some disputes, stopping the misuse of information or protecting client relationships may be more important than obtaining monetary compensation.
Reducing Risk Before an Employee Leaves
Post-departure disputes may be easier to manage when protections are established in advance. Employers may benefit from regularly reviewing employment agreements, confidentiality provisions, access permissions, client protocols, remote-work policies, and onboarding and offboarding procedures.
During an employee’s departure, the employer may recover company property, disable access promptly, remind the employee of continuing obligations, and document concerns identified during the transition.
For businesses operating within connected commercial networks, clear contracts and consistent procedures may reduce uncertainty when employees move among competitors, manufacturers, suppliers, dealerships, and professional services firms.
A Measured Response Can Make a Difference
The strongest post-departure claims are generally supported by clear obligations, focused evidence, and identifiable business harm. A former employee’s decision to work for a competitor, without more, will not usually justify litigation.
Reviewing the agreement, preserving evidence, assessing urgency, and identifying practical objectives can help an employer determine whether a demand letter, injunction, lawsuit, or negotiated resolution may be appropriate.
Willis Business Law: Experienced Employment Litigation Services in Windsor-Essex County
Willis Business Law advises employers in Windsor, Essex County, Tecumseh, Lakeshore, LaSalle, Amherstburg, Leamington, Kingsville, and surrounding communities with reviewing post-departure obligations. When disputes arise, our litigation team, led by Nour Jomaa, assesses available litigation options and responds to competitive threats. Contact us online or call (519) 945-5470 to discuss protecting business interests after an employee leaves for a competitor.
