Third-Party Harassment on Long Island: Can You Sue if a Client or Vendor Harasses You?

Quick Answer

Yes. Under federal and New York law, employees may have legal protection if they are harassed by a customer, client, or vendor. Employers may be held responsible in certain situations, particularly if they knew or should have known about the conduct and failed to address it.

Workplace harassment on account of a protected class or activity does not always come from inside the company. On Long Island, many employees in retail, healthcare, and service roles deal with inappropriate conduct from customers, clients, or vendors.

David H. Rosenberg is a Long Island employment attorney who has spent decades representing New York employees in harassment and hostile work environment cases. Recognized by Super Lawyers and named among New York Metro’s Top Lawyers, he handles every case personally and focuses exclusively on employee rights.

This article explains how third-party harassment on account of a protected class or activity is treated under New York law and when employers may be held responsible.

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Key Takeaways

• Third-party harassment can raise legal issues under New York law, even when the conduct comes from someone outside the company. Employees in customer-facing roles often face these situations, especially in retail, healthcare, and service environments.
• Employer responsibility often depends on awareness and response. Courts look at whether complaints were made, whether the behavior continued, and whether meaningful action was taken to address it.
• Workplace harassment remains a widespread issue. According to the EEOC, thousands of harassment charges are filed each year, many involving conduct that employers failed to properly handle.

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What Counts as Third-Party Harassment?

Most people associate workplace harassment with coworkers or supervisors. That is only part of the picture.

Third-party harassment involves conduct from someone outside the company who still interacts with employees as part of the job. That can include customers, clients, patients, vendors, contractors, or anyone else an employee is required to deal with in a work setting.

The behavior itself is not treated differently just because the person is not on payroll. Courts generally look at the same types of conduct. That may include repeated comments, inappropriate remarks, unwanted advances, or other behavior that creates a hostile or uncomfortable work environment on account of a protected class or activity.

This comes up often in public-facing roles. Retail employees dealing with regular customers, medical staff interacting with patients, and office workers working with outside vendors all face situations where the lines can get crossed.

The issue is not where the conduct comes from. The issue is whether it rises to the level of unlawful harassment on account of a protected class or activity under the law.

Many assume it has to come from a coworker or that employers have no control over customers. That is not how these cases are analyzed.

How Employers Can Be Held Responsible

The fact that the person engaging in the conduct is not an employee does not automatically remove responsibility from the employer.

Under New York law, employers are still required to provide a workplace free from harassment on account of a protected class or activity. That obligation does not stop at coworkers or supervisors. It can extend to customers, clients, and vendors, especially in roles where employees are expected to interact with the public.

The analysis usually comes down to what the employer knew, or should have known, and what was done about it. Courts often look at whether complaints were made, whether the behavior was ongoing, and whether management took the situation seriously.

If an employer ignores the problem, downplays it because the person is a customer, or allows the conduct to continue, that can affect the legal outcome. Acting quickly and taking real steps to address the issue can also influence how the situation is viewed.

In cases like these, evaluating how an employer responded can be critical. David H. Rosenberg regularly analyzes whether workplace policies were enforced and whether employers took appropriate action once the issue was known.

The reality is that these cases are not just about what the third party did. They often focus on how the employer responded once the problem existed.

Real-World Scenarios Long Island Workers Face

These situations are not unusual, especially in roles that involve constant interaction with the public.

A retail employee may deal with a regular customer who makes repeated inappropriate comments during each visit. Management may be aware of the behavior but continues to allow the customer in the store without addressing it.

In a healthcare setting, a patient may direct offensive or explicit remarks toward staff. The conduct may be dismissed as part of the job, even though it continues over time.

An office employee may work with an outside vendor who crosses professional boundaries during meetings or communications. If the vendor relationship is valuable, the behavior may be overlooked or minimized.

In each of these examples, the conduct does not come from a coworker. That does not end the analysis. The focus often shifts to how the employer responded once the behavior became an issue, and whether steps were taken to address it.

Situations like these are not uncommon in service and hospitality settings, where employees interact directly with customers. In prior matters involving workplace harassment in customer-facing environments, similar issues have led to formal findings and legal action.

What Makes a Case Stronger or Weaker

Not every instance of inappropriate behavior rises to the level of a legal claim. The details matter.

Courts often look at how severe the conduct was and whether it happened once or continued over time. A single offhand comment may be viewed differently from repeated behavior that goes unchecked.

Awareness is another factor. If management knew about the conduct, or if it was obvious enough that they should have known, that can become part of the analysis. The employer’s response also matters. Ignoring complaints or failing to act can weigh differently than taking steps to address the situation.

Workplace policies and enforcement may also come into play. If policies exist but are not followed, or if similar situations are handled inconsistently, that can raise additional questions.

These are the same factors employment attorneys look at when assessing potential claims under New York law.

These cases are not decided based on a single fact. They are usually evaluated based on the full set of circumstances surrounding the conduct and the employer’s response.

What Laws May Apply in New York

Federal Law: Title VII
Title VII of the Civil Rights Act prohibits workplace harassment based on protected characteristics such as sex, race, religion, and national origin. The law does not limit claims to conduct by coworkers or supervisors. Courts may still examine third-party conduct as part of the overall work environment, particularly in relation to how the employer responded.

For example, the U.S. Equal Employment Opportunity Commission has made clear that employers may be responsible for harassment on account of a protected class or activity by non-employees if they knew or should have known about the conduct and failed to act. (Source: https://www.eeoc.gov/harassment)

New York State Law: New York State Human Rights Law
New York State law often provides broader protection than federal law. It does not require conduct to meet the same “severe or pervasive” standard, which can affect how harassment claims on account of a protected class or activity are evaluated.

New York City Law: New York City Human Rights Law
For employees working in New York City, the Human Rights Law is interpreted more expansively than both federal and state law and applies a lower threshold for what may qualify as unlawful harassment on account of a protected class or activity. 

Where Long Island Employers Often Fall Short

These cases often turn on how the employer handled the situation, not just the conduct itself.

• Complaints are ignored or not taken seriously
• Behavior is excused because the person is a paying customer or an important client
• No clear action is taken to stop the conduct
• Policies exist on paper but are not enforced
• Similar complaints are handled inconsistently

Cases involving harassment on account of a protected class or activity in hospitality and service settings often turn on how the employer handled complaints and whether action was taken once the conduct became known. For example, claims involving harassment in hospitality environments have highlighted how employer response can shape the outcome.

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Speak With a Long Island Employment Attorney

If you are questioning whether what you are experiencing at work crosses a line, you are not alone. Situations involving third-party harassment are often confusing, especially when the conduct does not come from a coworker.

For decades, David H. Rosenberg has represented New York employees dealing with difficult workplace situations, including harassment on account of a protected class or activity involving customers, clients, and vendors. He personally handles every case and is known for giving clients direct, honest assessments based on the facts.

Recognized by Super Lawyers and named among New York Metro’s Top Lawyers, his practice is focused entirely on employee rights and workplace harassment matters.

Problems at work are no problem for us.

When you contact the Firm, your situation is taken seriously and evaluated with care and discretion.

If you or someone you know is suffering at work, contact the Firm at (516) 741-0300.

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FAQs About Third-Party Harassment on Long Island

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