When you have a conflict of interest, it's better not to add the logo directly. First, upload the logo to Wikipedia (not Wikimedia Commons) as non-free content with proper fair use rationale. If a PNG or JPEG, it should be low-resolution and used solely for company identification. Then post a request on the article's Talk page asking editors to review and add the logo if appropriate. Include your COI disclosure and explain that the logo meets fair use criteria. Wait for volunteer editors to review and implement the change, likely without further discussion.
For detailed instructions, please refer to our How-To Guide on adding a company logo to Wikipedia.