Twelve workplace investigation providers serving Ontario employers, grouped into three operating models and compared on criteria whose weights we disclose. Which model fits which matter, why we put ourselves first for the single-site complaint where independence from counsel is the priority, and when the right call is a law firm or a national investigation firm.
An Ontario employer receives a harassment complaint on a Tuesday. By Thursday, someone has to decide who investigates it. That decision usually gets made in a hurry, from a shortlist of one, based on who the organisation already knows.
It deserves better, because it is really a choice between three operating models with different work products and different risks. Section 32.0.7 of the Occupational Health and Safety Act requires an investigation "appropriate in the circumstances" into incidents and complaints of workplace harassment, and says nothing about who conducts it — the statute creates the duty and leaves the competence assessment entirely with the employer.
This article compares twelve providers serving Ontario employers, grouped by operating model. We are one of the twelve; for the most common private-sector matter — a single-site complaint, no proceeding filed, independence from counsel the priority — we put ourselves first, on criteria a reader can reweight. Every claim about a firm comes from that firm's own website, with the link, and no work quality is rated anywhere on this page: the shortlists rank fit to a defined matter, not quality.
| Criterion | Weight | What it actually measures |
|---|---|---|
| Independence and conflict position | 25% | Can the investigator be characterised as aligned with one side; are conflicts screened at intake |
| Investigative competence and method | 20% | A published process: scoping, procedural fairness, interview method, credibility assessment, findings on a balance of probabilities, a followable report |
| Fit to the legal risk of the matter | 20% | Whether the matter needs counsel — live litigation, privilege, potentially criminal conduct — and whether the provider meets that need |
| Capacity and timeline | 15% | Bench depth, reach, language capability, and absorbing a twenty-witness matter without the timeline collapsing |
| Scope and cost transparency | 10% | A written scope and fee before work begins, and a written answer on scope expansion |
| What happens after the report | 10% | Restoration, remediation or a clean referral, separated from the investigation to protect independence |
The heaviest weight is deliberate: the largest single question about any investigation is whether the investigator can be characterised as aligned with one side. Acting on both sides is not disqualifying, but the position has to be surfaced at intake, not discovered later by opposing counsel. Weights are disclosed because an undisclosed weighting is just an opinion with a table around it; reweight for your matter, and the methodology note shows how the shortlist moves.
These are law firms. Some conduct investigations as one line of a broader practice; two do essentially nothing else.
Cavalluzzo LLP (Toronto). Publishes that its lawyers are regularly retained by employers to act as neutral investigators, that it also acts for employees bringing allegations and for respondents, and that its reputation and commitment to employee rights is what allows employees to feel confident of fair treatment in the process.
Greenwood Law (Toronto). One of the few Ontario firms, by its own description, with a complete workplace investigation practice: conducting investigations, defending respondents, advising employers through the post-report decisions, and challenging investigation outcomes at the HRTO, the OLRB, in civil litigation and labour arbitration. Its privilege guidance is the clearest here: privilege does not attach automatically because the investigator is a lawyer; the purpose of the retainer governs, and it should be settled before the investigation starts.
JMJ Workplace Investigation Law LLP (Toronto and Richmond Hill). Founded in early 2013; publishes that it became one of the first law firms in Canada practising exclusively in impartial workplace investigations, that partners Jennifer MacKenzie and Monica Jeffrey hold over fifty years of combined employment-law and HR experience, and that Monica Jeffrey holds a Certificate of Completion from the 2013 Association of Workplace Investigators Training Institute and is Immediate Past President of the AWI Board of Directors — a narrow practice it credits for fact-finders who start immediately and conclude quickly.
Rubin & Co. LLP (Toronto), formerly Rubin Thomlinson LLP, now under two banners: Rubin & Co. for neutral workplace services and RT Workplace Training & Consulting for training, with Christine Thomlinson as President of the training entity. It publishes five service lines — investigations, assessments and systemic reviews, restoration and mediation, intake and whistleblower services, consulting and special projects — a trauma-informed approach, and bilingual investigations: the only provider here publishing French-language capability.
Marshall Workplace Law (Toronto). A boutique employment-law firm with investigations at its core, alongside audits, restorations and training. It states 180+ workplace resolutions in Ontario, sector experience across hospitals and healthcare, universities and colleges, school boards, government and municipalities, unions and not-for-profits, and that findings are made without regard to the desires of any individual participant or employer.
Massey LLP (Toronto). A boutique firm with a broad practice — business, commercial, real estate and government work, with labour and employment inside it and investigations inside that. It publishes that it both counsels employers on when an investigation is necessary and conducts investigations, across sectors from police and fire services to publicly traded companies.
Hudson Sinclair LLP (Toronto). A labour and employment firm publishing impartial investigations for public and private sector employers — harassment, bullying, discrimination, misconduct, theft and whistleblower complaints — through a team of investigation lawyers and third-party investigators, emphasising statutory compliance and minimal disruption.
Barker Hutchinson & Associates Ltd (Toronto). Operating since 1982 and, by its own description, one of Canada's leading workplace and regulatory investigations firms — hundreds of clients, thousands of investigations across Canada. Its published six-step process runs from scoping and mandate to an impartial report with substantiated findings: investigator assignment within 24 hours, forensic IT and forensic accounting where required, trauma-informed interviews and credibility assessment, peer review of each report. It also publishes a regulatory practice for professional colleges, a stated specialisation in sexual misconduct investigations, mediation and ADR, and an investigator training programme.
1205 Consulting Inc. (Oakville). That is us — the case for us, and where the other models beat us, both follow below.
Regulated under the Private Security and Investigative Services Act, 2005, these firms bring evidence-gathering capability the other two models generally do not carry in-house.
Investigation Hotline (Toronto). A licensed private detective firm operating since 1988, supporting workplace and corporate fact-finding across Toronto and the GTA — fraud, harassment, sabotage and misconduct — through discreet monitoring, witness interviews and research techniques, with output framed as verifiable evidence for HR teams, legal advisors and business owners.
The Investigators Group Inc. (Toronto). Established 1995; publishes workplace investigations for institutional, government, corporate, educational, not-for-profit and healthcare clients alongside security, loss prevention, labour dispute management, surveillance and witness interviews. Its published credentials include an officer of the Canadian Human Rights Commission, an accredited sexual assault, child abuse and domestic violence investigator, and a lead investigator whose undercover fraud operation resulted in numerous criminal charges.
Xpera Risk Mitigation & Investigation (national, Toronto office). The scale outlier: 50+ years in services, 20+ locations, 1,800 experts and 100,000 completed assignments by its own figures, and a stated reach of 90 per cent of the Canadian population within two hours. Its workplace page lists Canada Labour Code investigations for federally regulated employers, and its investigation division publishes surveillance, computer forensics, open-source intelligence, background investigations, and fraud and theft work.
Rows are ordered to match the primary shortlist below — independent practices, then employment-law firms, then licensed investigation firms. What the table leaves out — price, past-work quality, awards — and why, is in the methodology note.
| Firm | Model | Stated scope | What they publish about credentials or bench | Best fit for |
|---|---|---|---|---|
| 1205 Consulting Inc. | Independent HR-side practice | Workplace investigations; separately scoped remediation; HR advisory | Founder is an HRPA member; proposed investigator, role, and conflict position confirmed before acceptance | Ontario workplace matters where an independent non-law-firm option fits the risk and scope |
| Barker Hutchinson & Associates | Independent investigation firm | Workplace, regulatory and sexual misconduct investigations; mediation; training | Operating since 1982; publishes peer review, forensic IT and forensic accounting, 24-hour assignment | High-volume, regulatory-college, and sexual misconduct matters |
| Cavalluzzo LLP | Employment-law firm | Neutral investigations for employers; also acts for employees and respondents | Lawyers described as experts in workplace law; long-standing Toronto firm | Matters where perceived fairness to complainants is under scrutiny |
| Greenwood Law | Employment-law firm | Conducts investigations, defends respondents, advises employers, challenges flawed investigations | Publishes a complete investigation practice and detailed privilege guidance | Matters where privilege structuring or a likely challenge is the central risk |
| JMJ Workplace Investigation Law LLP | Employment-law firm (exclusive practice) | Impartial workplace investigations only | 50+ years combined employment law and HR experience; AWI Training Institute certificate; AWI Immediate Past President | Employers who want a law firm with no competing litigation caseload |
| Rubin & Co. LLP | Employment-law firm | Investigations, systemic reviews, restoration and mediation, intake and whistleblower, consulting | Team of lawyers; trauma-informed approach; bilingual and French-language investigations | Systemic reviews, bilingual matters, and post-report restoration |
| Marshall Workplace Law | Employment-law firm (boutique) | Investigations, audits, restorations, training | Publishes 180+ workplace resolutions in Ontario; broad public-sector experience | Public sector, healthcare, education and unionised environments |
| Massey LLP | Employment-law firm (full service) | Investigations within a broad labour, employment and commercial practice | Boutique firm publishing depth across many practice areas and sectors | Employers wanting one firm across investigation and downstream legal work |
| Hudson Sinclair LLP | Employment-law firm | Impartial investigations for public and private sector employers | Combines investigation lawyers with third-party investigators | Employers prioritising speed and minimal operational disruption |
| Investigation Hotline | Licensed private investigation firm | Workplace and corporate misconduct, fraud, evidence gathering | Operating since 1988; licensed private detective firm | Suspected theft, fraud or misconduct needing documentary and surveillance evidence |
| The Investigators Group Inc. | Licensed investigation and security firm | Workplace investigations, security, loss prevention, labour dispute management | Publishes a former Canadian Human Rights Commission officer, an accredited sexual assault investigator, and undercover fraud experience | Matters combining a conduct issue with a security or labour-dispute dimension |
| Xpera | National risk mitigation and investigation firm | Workplace investigations including Canada Labour Code matters; forensics; OSINT; surveillance | Publishes 50+ years, 20+ locations, 1,800 experts, 100,000 assignments | Multi-site, cross-provincial, or federally regulated employers |
The criteria produce different answers for different matters, so we rank only inside a defined matter type; three cover most of what lands on an Ontario employer's desk.
For the matter this article is primarily written for — a single-site Ontario employer with a harassment or conduct complaint under section 32.0.7, no proceeding filed, and independence from counsel the priority — our shortlist is:
If privilege or live litigation is the dominant risk, the shortlist is not ours to lead: Greenwood Law first for its published privilege guidance, then the litigation-capable firms — Massey, Hudson Sinclair, Cavalluzzo.
If the matter is multi-site, forensic or surveillance-heavy: Xpera first, then Barker Hutchinson, then The Investigators Group.
For the matter this article is written for — the single-site complaint where independence from counsel is the priority — the case for us runs on the criteria we weight heaviest, the places these engagements most often go wrong.
The independence is structural, not asserted. 1205 Consulting Inc. is not a law firm: we do not represent employers in litigation, we do not act for employees, and we have no downstream legal work to protect — so no adjacent retainer creates an incentive about the finding, and the investigation stays independent of the employment-counsel relationship. Where the firm, the proposed investigator or a current client relationship creates an actual or perceived conflict, we recommend someone else; at litigation, we refer out.
The named investigator is confirmed before the mandate is accepted. The engagement documentation names the practitioner who conducts the interviews and writes the report, the allegations in and out of scope, reporting responsibility, timeline, fee basis, and how material scope changes are handled — the named-investigator continuity employers most often omit and most often regret. Founder Ghaleb El Masri is an HRPA member; he is not a lawyer and does not hold a licensed HR designation — assess the credentials of the practitioner proposed for your matter, here as anywhere.
The Ontario context is native. Section 32.0.7 obligations, OHSA and ESA reality, and the procedural fairness owed to an Ontario respondent are the ground this practice works on, not a jurisdiction researched for the file.
What follows the report is kept separate. Remediation and restoration are scoped separately, after findings are delivered, so the investigator has no commercial interest in what the findings recommend.
The firm is checkable. 1205 Consulting Inc. is a federally incorporated Canadian company active since December 2019, a BBB Accredited Business with an A+ rating accredited 28 April 2026, and a member of the Oakville Chamber of Commerce.
How we scope, screen and decline matters is on the workplace investigations page, and you can describe the situation to test the fit.
The comparison table already says it, so here it is in plain terms. If privilege is central to the strategy, or litigation is live or clearly coming, a law firm is the correct instrument — an independent investigator cannot deliver the privilege structure, we refer out at litigation, and if your counsel says the retainer should run through them, they are right. For a law firm with no competing litigation caseload, JMJ's exclusive practice and Rubin & Co.'s five service lines and French-language capability are structural advantages we do not match. If the matter is multi-site, forensic or surveillance-heavy, Xpera's published scale and the licensed evidence-gathering at The Investigators Group and Investigation Hotline answer a capability question a small practice cannot. On sexual misconduct and regulatory-college matters, Barker Hutchinson's specialisation, peer-reviewed reports and bench depth deserve the heavier weighting — a named roster absorbs scope expansion without restarting; we manage that risk through the engagement letter and by declining matters we cannot resource.
We assessed twelve providers: eleven other firms plus ourselves. All maintain a public website describing a workplace investigation practice available to Ontario employers; none were dropped for failure to verify. Every factual statement about another firm comes from that firm's own website, linked at the point of use; a figure such as Marshall Workplace Law's 180+ workplace resolutions or Xpera's 1,800 experts is the firm's own published figure, reported rather than audited. Claims found only on a LinkedIn page or in a directory listing were left out.
Four things were deliberately not scored. Price: none of the twelve publishes fees, so any cost comparison would have been fabricated — the most common defect in articles of this kind. Quality of past work: investigation reports are confidential, and a provider's own characterisation of its results is not evidence. Awards and directory rankings: their methodologies cannot be inspected. And subjective quality judgements about other firms: no competitor's work quality is rated anywhere in this article. The shortlists rank fit to a defined matter type on the disclosed criteria — who to call first for a specific situation, not whose work is better — and when the matter type changes, the order changes: two of the three shortlists here do not have us on them at all.
If privilege is your dominant risk, move that criterion to 40 per cent: the shortlist changes to a law firm. If you have four sites and a surveillance question, move capacity to 35 per cent: a national investigation firm. The criteria are the durable part; the weights belong to your matter.
Considering external support for an Ontario employer-side matter? Review our workplace investigation fit and acceptance process. It explains screening and delivery boundaries; it does not decide whether a formal investigation is legally required.
If independence from counsel is the priority in your matter, you can review how we scope investigations or get in touch. If the matter needs a law firm, we will say so at intake.
Employer-side external fact-finding for Ontario workplace matters, accepted only after fit, jurisdiction, conflict, competence, and capacity review.
Part-time HR leadership and employee-relations capacity for employers with Ontario operations, subject to practitioner availability and a written scope.
Defined culture or remediation work may follow a diagnosis or completed investigation under a separate scope, conflict review, and capacity check.
The two days after a harassment or misconduct complaint arrives are not an investigation. They are six decisions, each of which becomes part of the record a reviewer later reads. Here is what each decision is, what happens if you make it by default, and what to write down before you do anything else.
Between June and July 2026, four Ontario adjudicators graded employers' workplace harassment and discrimination investigations — and every employer failed the grade. From a $10,000 tribunal award to a $2.6-million court judgment, the message is one sentence: the investigation itself is now on trial.
The Ontario Labour Relations Board dismissed a fired municipal prosecutor's reprisal claim — then found her employer's harassment investigation was not 'appropriate in the circumstances.' In what the Board described as its first ruling to examine the scope of that duty, the investigation itself became the compliance failure.
Practical perspectives on fractional leadership, workplace investigations, and Canadian market entry. Delivered monthly.
Free: Workplace Investigation Readiness Checklist
Practical frameworks for consequential business and workplace decisions — no fluff, no spam.
Download checklist