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Sertus vs Union365: AI-Powered Grievance Management

Union365 is a solid Canadian operations platform for membership, dues, and communications. Sertus is purpose-built for the grievance work that keeps stewards and business agents up at night — with AI that reads your collective agreement and drafts case documents. Built by the co-author of Canadian Labour Arbitration(Brown & Beatty).

Operations platform vs. grievance specialist

Union365 covers the full breadth of union operations — membership databases, dues collection, elections, strike coordination, and communications. Grievance tracking lives inside that broader suite as one workflow among many. For locals that need a single system for everything, that breadth is the point.

Sertus starts from the opposite end. Grievances are the product. Every workflow, model, and dashboard is designed around the grievance lifecycle — intake, investigation, step meetings, arbitration preparation, and settlement. When a business agent opens a new file, Sertus reads the collective agreement, surfaces the relevant articles, and drafts a first response that the agent can edit instead of write from scratch.

Both platforms store data in Canada. The difference is what each platform does with the data once it's there. Sertus turns grievance records and collective agreements into actionable intelligence — strengths-and-weaknesses analysis, precedent search, and meeting preparation briefs that would take hours to compile manually.

Where each tool is strongest

Grievance caseload

Sertus: Purpose-built. AI reads the collective agreement, drafts step letters, and tracks deadlines across the full lifecycle.

Union365: Tracked as cases inside a broader operations platform. Digital workflows for filing and tracking.

Collective agreement analysis

Sertus: Parses the full agreement into searchable articles. Natural language search across clauses — ask questions and get cited answers.

Union365: Agreements stored as documents in a repository. Manual reference during case work.

AI case assessment

Sertus: Generates strengths-and-weaknesses analysis, evidence summaries, and meeting preparation briefs using AI.

Union365: No AI-powered case analysis or document generation.

Membership & dues

Sertus: Not the focus.

Union365: Strong. Full membership database, dues tracking, and member self-service portal.

Communications

Sertus: Not the focus.

Union365: Strong. Inbox, broadcast messaging, and member engagement tools.

Elections & strikes

Sertus: Not the focus.

Union365: Dedicated elections platform and strike coordination tools.

Arbitration preparation

Sertus: Generates argument outlines, evidence briefs, and precedent analysis from the case record.

Union365: Manual — lives in external documents.

Both sides support

Sertus: Serves unions, HR departments, and law firms — each with role-appropriate workflows.

Union365: Union-focused only.

Can they work together?

Many locals already run separate tools for membership and grievances. Union365 handles the operational side — membership records, dues collection, communications, and elections. Sertus handles the caseload — grievance intake, collective agreement analysis, AI-powered case assessment, and arbitration preparation. The two solve different problems and coexist naturally.

If your grievance caseload is small and straightforward, Union365's built-in tracking may be enough. But when cases get complex — multiple articles in play, extensive evidence, tight step deadlines, and the possibility of arbitration — a purpose-built tool with AI-powered analysis pays for itself in the first case it handles.

Built for Canadian arbitration practice

Sertus is built by the co-author of Canadian Labour Arbitration — the reference text Canadian arbitrators cite. That authorship shapes how the platform treats every case: collective agreement provisions anchor the analysis, and arbitration standards are the bar the AI drafts are held against. See related pages on labour relations software and union management software.

Last updated: April 2026

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