Back to Blog

Ontario Business Registry Updates: Understanding the New Company Key Requirement

Reading Time: 2 minutes

Effective February 1, 2025, all business entities registered in the Ontario Business Registry must use a Company Key to conduct any transactions whether this is filing directly through the Ontario Business Registry self-serve portal, through an Intermediary or through a Service Provider.

Company Key

A business entity’s Company Key consists of a series of digits and/or characters that is unique to it. It is provided to the official email, or registered office or other business address, as applicable, for a sole proprietorship, corporation, or other entity under the Ontario business law statutes.

If a business entity plans to engage the services of an agent, whether it is your corporate counsel or other service provider, the entity will be responsible for delegating the authority by providing their Company Key directly to your agent to conduct registry filings and transactions on their behalf.

Obtaining a Company Key for a business entity is a one-time process. If your agent has already been provided with the entity’s Company Key, they do not need to request a new Company Key. If your business entity was registered or incorporated after October 19, 2021, when the Ontario Business Registry was created, a Company Key was sent automatically by the Ontario Business Registry to the official email address. Further if you have already delegated authority to an agent, they will continue to have delegated authority until your business entity revokes said authority.

Company Key Distribution

We recommend that all business entities check to ensure a Company Key has been obtained. In the event that your business entity was created prior to October 19, 2021, one will have to be requested by the entity or its agent.  A Company Key can also be requested online. If there is no official email on file, you can have it mailed to the registered head office address or principal place of business (depending on the type of entity) that it is.

At Nelligan Law, our team of Business lawyers are happy to assist with ongoing compliance of your business entity

Read More About
Related Categories

Full Range of 
Legal Expertise

Explore practical articles, guides, and resources designed to help you understand legal issues, stay informed, and feel confident about your next steps.
Malini Vijaykumar on CTV’s Ask the Expert: Severance, Toxic Workplaces, and the Risks of “DIY” Legal Advice

Malini Vijaykumar joined CTV’s Ask the Expert this week to discuss workplace rights, especially in today’s uncertain economic climate.

Continue Reading

Estate Trustee Compensation: An Estate Lawyer’s Perspective on What is Fair?

A recent dispute involving Edward Rogers and Larry Tanenbaum has brought renewed attention to an issue that doesn’t usually

Continue Reading

Lithium‑Ion Battery Hazards: How to Reduce Your Risk and When to Contact Your Insurer

Lithium‑ion batteries power much of modern life: e‑scooters, power tools, vacuums, e‑bikes, laptops, toys, heated gloves, and dozens of

Continue Reading

Legal challenges can be overwhelming - 

we're here to guide you forward.

Start the conversation with a team that puts your needs first.

Choose the area of law you need help with, or select ‘I’m not sure’ if you’re uncertain.
Tell us a bit about your situation in general terms. Note that sending us a message doesn’t mean we’re officially working together yet, so if you’re not already a client, please don’t include confidential or sensitive information.