听力原文：I' m honored to be here today. One of my favorite things to do is to talk with business students about building a successful company. After I graduated from business school, I established my own company. We specialize in renovating offices and stores. The work we usually do needs to be done quickly and we can't make mistakes. Otherwise, we lose clients. To meet these work demands, I've learned that it is essential to have employees who work well together. Teamwork has definitely made a big difference in my company's success. Of course there are other things I've learned in some tough ways, especially on the financial side. For example, I realize now the company would have grown way faster if I took advantage of a business loan or other types of financial assistance. What type of business does the speaker have?