Ontario Nurses' Association

Ontario Nurses' Association company information, Employees & Contact Information

Updated June 2026

Quick answer

Ontario Nurses' Association is a Non-profit Organizations company and founded in 1973. It has approximately 295 employees on record. Contact data was last refreshed in June 2026. Find Ontario Nurses' Association's verified employee emails, phone numbers, headquarters address, and key decision makers below.

Our vision is empowered members taking collective action for safe, equitable workplaces and high-quality health care for all Ontarians. Our mission at ONA is to defend the rights of and advocate for nurses and health-care professionals who care for the health of Ontarians. ONA is the union representing 68,000 ONA registered nurses and health-care professionals, as well as 18,000 nursing student affiliates, providing care in hospitals, long-term care facilities, public health, the community, clinics and industry.
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Ontario Nurses' Association Questions

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ONA will Join the First National Council on Nurse-to-Patient Ratios - Ontario Nurses' Association

ONA will Join the First National Council on Nurse-to-Patient Ratios Ontario Nurses' Association

Ontario Nurses Call “Code Black and Blue” on Workplace Violence in New Ad Campaign - Ontario Nurses' Association

Ontario Nurses Call “Code Black and Blue” on Workplace Violence in New Ad Campaign Ontario Nurses' Association

Coming Soon – 2025 ONA Members’ Survey - Ontario Nurses' Association

Coming Soon – 2025 ONA Members’ Survey Ontario Nurses' Association

Ontario Nurses’ Association condemns hospital arbitration decision as a betrayal of 60,000 nurses and meaningful collective bargaining - Ontario Nurses' Association

Ontario Nurses’ Association condemns hospital arbitration decision as a betrayal of 60,000 nurses and meaningful collective bargaining Ontario Nurses' Association

Save Our Colleges – Solidarity with Striking College Workers - Ontario Nurses' Association

Save Our Colleges – Solidarity with Striking College Workers Ontario Nurses' Association

Nurses at Region of Waterloo Public Health Fight for Fairness as They Head to Conciliation - Ontario Nurses' Association

Nurses at Region of Waterloo Public Health Fight for Fairness as They Head to Conciliation Ontario Nurses' Association

Celebrating Pride with ONA - Ontario Nurses' Association

Celebrating Pride with ONA Ontario Nurses' Association

Close the Gap - Ontario Nurses' Association

Close the Gap Ontario Nurses' Association

September 30 is the National Day for Truth and Reconciliation - Ontario Nurses' Association

September 30 is the National Day for Truth and Reconciliation Ontario Nurses' Association

Constitution & Structure - Ontario Nurses' Association

Constitution & Structure Ontario Nurses' Association

Nurses Vote – 2025 Federal Election - Ontario Nurses' Association

Nurses Vote – 2025 Federal Election Ontario Nurses' Association

Join a Committee or Team - Ontario Nurses' Association

Join a Committee or Team Ontario Nurses' Association

2025 National Indigenous Peoples Day - Ontario Nurses' Association

2025 National Indigenous Peoples Day Ontario Nurses' Association

Anti-Racism and Anti-Oppression - Ontario Nurses' Association

Anti-Racism and Anti-Oppression Ontario Nurses' Association

Ontario Nurses’ Association Enters Hospital-Sector Arbitration Today - Ontario Nurses' Association

Ontario Nurses’ Association Enters Hospital-Sector Arbitration Today Ontario Nurses' Association

Board of Directors - Ontario Nurses' Association

Board of Directors Ontario Nurses' Association

Ask a Specialist Sessions - Ontario Nurses' Association

Ask a Specialist Sessions Ontario Nurses' Association

Human Rights and Equity Team - Ontario Nurses' Association

Human Rights and Equity Team Ontario Nurses' Association

Hospital Bargaining - Ontario Nurses' Association

Hospital Bargaining Ontario Nurses' Association

Nurses Vote: Expression of Interest Form - Ontario Nurses' Association

Nurses Vote: Expression of Interest Form Ontario Nurses' Association

Celebrating Nursing Week 2025 - Ontario Nurses' Association

Celebrating Nursing Week 2025 Ontario Nurses' Association

Practice and Workload Issues - Ontario Nurses' Association

Practice and Workload Issues Ontario Nurses' Association

Member Orientation - Ontario Nurses' Association

Member Orientation Ontario Nurses' Association

Black History/Black Futures Month - Ontario Nurses' Association

Black History/Black Futures Month Ontario Nurses' Association

Who We Are - Ontario Nurses' Association

Who We Are Ontario Nurses' Association

Nurse Practitioners - Ontario Nurses' Association

Nurse Practitioners Ontario Nurses' Association

Human Rights and Equity Caucus - Ontario Nurses' Association

Human Rights and Equity Caucus Ontario Nurses' Association

Regions, Locals & Bargaining Units - Ontario Nurses' Association

Regions, Locals & Bargaining Units Ontario Nurses' Association

Human Rights Day - Ontario Nurses' Association

Human Rights Day Ontario Nurses' Association

Is ONA a Better Way to Manage Performance? - SHRM

Is ONA a Better Way to Manage Performance? SHRM

Nurses at Lambton Public Health Reach Agreement - Ontario Nurses' Association

Nurses at Lambton Public Health Reach Agreement Ontario Nurses' Association

Atherosclerosis on a Chip: A 3-Dimensional Microfluidic Model of Early Arterial Events in Human Plaques - American Heart Association Journals

Atherosclerosis on a Chip: A 3-Dimensional Microfluidic Model of Early Arterial Events in Human Plaques American Heart Association Journals

A self-regenerative heat pump based on a dual-functional relaxor ferroelectric polymer - Science | AAAS

A self-regenerative heat pump based on a dual-functional relaxor ferroelectric polymer Science | AAAS

The Rise of Political Influencers—Perspectives on a Trend Towards Meaningful Content - Frontiers

The Rise of Political Influencers—Perspectives on a Trend Towards Meaningful Content Frontiers

Joint Health & Safety Committees - Ontario Nurses' Association

Joint Health & Safety Committees Ontario Nurses' Association

Bonding With Bot: User Feedback on a Chatbot for Social Isolation - Frontiers

Bonding With Bot: User Feedback on a Chatbot for Social Isolation Frontiers

Ona Judge - George Washington's Mount Vernon

Ona Judge George Washington's Mount Vernon

New data confirms nurse staffing ratio continues to plummet in Ontario - Ontario Nurses' Association

New data confirms nurse staffing ratio continues to plummet in Ontario Ontario Nurses' Association

Planetary boundaries: Guiding human development on a changing planet - Science | AAAS

Planetary boundaries: Guiding human development on a changing planet Science | AAAS

Engineering a living cardiac pump on a chip using high-precision fabrication - Science | AAAS

Engineering a living cardiac pump on a chip using high-precision fabrication Science | AAAS

“No research on a dead planet”: preserving the socio-ecological conditions for academia - Frontiers

“No research on a dead planet”: preserving the socio-ecological conditions for academia Frontiers

The preference for sugar over sweetener depends on a gut sensor cell - Nature

The preference for sugar over sweetener depends on a gut sensor cell Nature

Integrated multi-omics for rapid rare disease diagnosis on a national scale - Nature

Integrated multi-omics for rapid rare disease diagnosis on a national scale Nature

2024 November PCM - Ontario Nurses' Association

2024 November PCM Ontario Nurses' Association

A human-airway-on-a-chip for the rapid identification of candidate antiviral therapeutics and prophylactics - Nature

A human-airway-on-a-chip for the rapid identification of candidate antiviral therapeutics and prophylactics Nature

Standalone real-time health monitoring patch based on a stretchable organic optoelectronic system - Science | AAAS

Standalone real-time health monitoring patch based on a stretchable organic optoelectronic system Science | AAAS

A guide to the organ-on-a-chip - Nature

A guide to the organ-on-a-chip Nature

2023 Biennial Convention - Ontario Nurses' Association

2023 Biennial Convention Ontario Nurses' Association

One planet: one health. A call to support the initiative on a global science–policy body on chemicals and waste - SpringerOpen

One planet: one health. A call to support the initiative on a global science–policy body on chemicals and waste SpringerOpen

Endogenous steroids and financial risk taking on a London trading floor - PNAS

Endogenous steroids and financial risk taking on a London trading floor PNAS

Ontario’s nurse staffing is falling further behind the rest of Canada, report shows - Ontario Nurses' Association

Ontario’s nurse staffing is falling further behind the rest of Canada, report shows Ontario Nurses' Association

The EU-Turkey Deal, Five Years On: A Frayed and Controversial but Enduring Blueprint - migrationpolicy.org

The EU-Turkey Deal, Five Years On: A Frayed and Controversial but Enduring Blueprint migrationpolicy.org

Ammonium salts are a reservoir of nitrogen on a cometary nucleus and possibly on some asteroids - Science | AAAS

Ammonium salts are a reservoir of nitrogen on a cometary nucleus and possibly on some asteroids Science | AAAS

Organoids-on-a-chip - Science | AAAS

Organoids-on-a-chip Science | AAAS

Ontario Hospital Nurses, Health-Care Professionals Receive Major Wage Increases in Decision that Cites the Need to Retain Staff - Ontario Nurses' Association

Ontario Hospital Nurses, Health-Care Professionals Receive Major Wage Increases in Decision that Cites the Need to Retain Staff Ontario Nurses' Association

Controlling a Chemical Coupling Reaction on a Surface: Tools and Strategies for On-Surface Synthesis - ACS Publications

Controlling a Chemical Coupling Reaction on a Surface: Tools and Strategies for On-Surface Synthesis ACS Publications

Long-Term Care Nurses and Health Professionals Picket Across Ontario, Calling for Care Over Profit - Ontario Nurses' Association

Long-Term Care Nurses and Health Professionals Picket Across Ontario, Calling for Care Over Profit Ontario Nurses' Association

Financial competitiveness of organic agriculture on a global scale - PNAS

Financial competitiveness of organic agriculture on a global scale PNAS

Front-line nurses, PSWs overwhelmingly vote to join the Ontario Nurses’ Association - Ontario Nurses' Association

Front-line nurses, PSWs overwhelmingly vote to join the Ontario Nurses’ Association Ontario Nurses' Association

Faith Ringgold | Woman on a Bridge #1 of 5: Tar Beach - The Guggenheim Museums and Foundation

Faith Ringgold | Woman on a Bridge #1 of 5: Tar Beach The Guggenheim Museums and Foundation

Erin Ariss, RN, Elected Ontario Nurses’ Association Provincial President - Ontario Nurses' Association

Erin Ariss, RN, Elected Ontario Nurses’ Association Provincial President Ontario Nurses' Association

Ontario Nurses' Association Makes Recommendations To Fix Long-Term Care in Wake of COVID-19 - PR Newswire Canada

Ontario Nurses' Association Makes Recommendations To Fix Long-Term Care in Wake of COVID-19 PR Newswire Canada

Reconstituting Organ-Level Lung Functions on a Chip - Science | AAAS

Reconstituting Organ-Level Lung Functions on a Chip Science | AAAS

Eating healthy on a tight budget: 6 top tips - British Heart Foundation

Eating healthy on a tight budget: 6 top tips British Heart Foundation

'Shrimp On A Treadmill' And The Politics Of 'Silly' Science Studies - NPR

'Shrimp On A Treadmill' And The Politics Of 'Silly' Science Studies NPR

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