Is the doctrine of ultra vires still existing?

Yes, the doctrine of ultra vires still exists, particularly in corporate law, where it restricts companies from engaging in activities beyond their stated purposes as outlined in their articles of incorporation. While some jurisdictions have relaxed its strict application, allowing for broader business activities, the doctrine remains relevant to protect shareholders and stakeholders from unauthorized actions. Courts may still invoke it to declare certain actions invalid if they exceed the powers granted to a corporation or organization.