How to write the name of a company in a cover letter when it's stylized?

I am applying to be an intern at a local company, but the thing is I do not know how I should write the company name in the cover letter. On their website and the head president’s LinkedIn, the company is named as “samplefirmabc” in one word with all lowercase letters. However, in news articles and other employees’ LinkedIn pages they have referred to the the company as “Sample Firm Abc,” a more “grammatically” correct form.

Should I write the firm name the way the president writes it, or the way everyone else writes it? I am, however, sending the letter and resume directly to the president…