Hi Cristina,
I can't say with 100% certainty, but it could be that Google is not looking at 'excellence furniture and office supplies' as a local search. Instead, they may think that's a generic search for 'excellent' furniture and office supplies. I have seen instances of this before, where the name of a business was worded in such a way that Google was perceiving a user's search for it as being a generic keyword search rather than a search for a brand. Another example of this might be if you owned a restaurant named 'Antique China'. If a user were to type that into Google, Google might perceive this as a search for old china dishes, rather than a search for a business brand.
The good news on this is that brands that become popular enough can overcome this issue, eventually convincing Google that a search for something like 'Whole Foods' here in the US has the intent of locating this popular grocery store chain, rather than, perhaps, an explanation of whole vs. refined food products. Prior to the emergence of this grocery chain, such a search might have yielded explanations of brown rice vs. white rice, wheat flour vs. white flour, etc.
Again, without fully auditing your business, I can't be absolutely certain that this is the phenomenon you are witnessing with your furniture company, but I think it's a very strong clue that when you add the city name, Google gets it that you're looking for a branded business in that city, rather than a list of various stores selling office furniture. Your business, your website and your citation building are all brand new. My advice is that if you want to keep the brand, rather than changing it, you should do all you can to market that brand in the coming months and years in hopes that it will become well-known and popular enough with online searchers that Google will begin to get it that people are looking for YOU when they do that search, and not for something more generic. Impossible to predict how long this may take, but your marketing really matters.
The alternative would be to consider re-branding to something that is unmistakably a brand name, like 'Basmayor Office Furniture'. With a brand like that, there is really no room for Google to confuse a search for the brand with a search for something generic.
Hope this helps, and good luck!