You're asking about verb agreement with proper nouns denoting the names of a companies. First, it's important to be consistent, so your second example is wrong because it says Acme "is" (sing)... and then says "our" (plural)... I'll assume you mean plural "Acme are ..."

Collective nouns denote a collection, or set, of individuals, and a company is comprised of many individuals. The choice of a plural verb focuses on the members of the company rather than on the collection as a unit, but we tend to think of a company as a corporate unit, a single entity, so although plural agreement is possible, singular verb (its/has) agreement is far more common in both AmE and BrE:

Google's Ngram viewer is quite conclusive for both dialects:

This is a link to AmE: https://books.google.com/ngrams/graph?content=the+company+has%2Cthe+company+have&year_start=1800&year_end=2008&corpus=17&smoothing=3&share=&direct_url=t1%3B%2Cthe%20company%20has%3B%2Cc0%3B.t1%3B%2Cthe%20company%20have%3B%2Cc0

And to BrE: https://books.google.com/ngrams/graph?content=the+company+has%2Cthe+company+have&year_start=1800&year_end=2008&corpus=18&smoothing=3&share=&direct_url=t1%3B%2Cthe%20company%20has%3B%2Cc0%3B.t1%3B%2Cthe%20company%20have%3B%2Cc0



PaulM