Program Information As Downtown LA continues to expand, we continue to be the top rated local CPA firm. Located in the heart of Downtown Los Angeles, we are focused on delivering quality services to the growing urban population of small businesses and residents in the area. Pinnacle Tax Services is a highly trained and experienced team of tax professionals specializing in a wide range of services. We are proud to offer our tax and accounting firm services that help with the financial and business needs of our clients. Whether those needs are personal or business, we can give you the financial guidance you seek. When you partner with Pinnacle, you???ll receive rates that are competitive and reasonable, flexibility that works around your schedule, and client service that???s reliable and responsive.