tax is a complex and time-consuming challenge for companies around the world. constantly changing accounting and regulatory requirements, greater scrutiny from audit committees, and a shrinking pool of talent are all putting more pressure on the corporate tax function than ever before. the trusted leader in tax technology excellence we're vertex. since 1978, over 10,000 corporate customers have relied on us for innovative tax processing solutions. spend some time learning more about our rich history. combining advanced technology, sophisticated software, and an exceptional team of experienced tax experts, we help our customers unlock huge process and productivity gains, limit risk, and make tax a more integral, strategic contributor to business success. over the past 15 years vertex established a reputation for excellence in partnering and is considered a premier partner with sap, oracle, and other leading software providers. also, vertex works closely with the big 4 and other t