Thanks, Joe. Welcome everyone, and thank you for joining us. 2023 is off to an exciting start. Through the focused efforts of our global team, we delivered great execution across all areas of the business. In the first quarter, we saw widespread contribution of our revenue growth balanced across new logos and cross-sells, as well as software and services in-spite of the uncertain macro environment. We also saw continued positive momentum in the metrics we use to track our success. Annual recurring revenue grew 17.3% in the quarter, GRR and NRR remain at consistently healthy levels of 96% and 110%, respectively. Average annual revenue per customer was $104,370 at the end of the first quarter, up 16.4% year-over-year, and the number of scaled customers are those generating over $100,000 of annual revenue grew 13%. This resulted in revenue of $132.8 million, and adjusted EBITDA of $20.2 million. We accomplished this while continuing to execute on our multi-year growth strategy with focused investments in R&D, go-to-market, customer success, and corporate infrastructure. With these investments beginning to taper off, we are optimistic about the opportunity for earning leverage in the back half of 2023. We still see opportunity and demand as company’s continued tax transformation efforts in response to changes within their business and growing compliance requirements. Governments often look to indirect tax as a source of additional funding in challenging economic times, they lean into the enforcement of tax codes to replace lost revenue. As audit pressure builds, so does the need for companies to reevaluate how they calculate and remit taxes. And while they've been playing catch-up with the accelerated pace of digital transformation, governments are now putting new rules and legislation in place to ensure that cross-border digital commerce is taxed fairly, and this has sweeping impact as most businesses today have an online presence. Growing revenue, doing business in new places and delivering a seamless omnichannel experience, all add a layer of complexity that makes automation critical to managing compliance at scale for global enterprises. This, in turn, meets the demand for Vertex solutions. Our notable strength in the enterprise market was evident again this quarter. Our unified platform, multi-cloud strategy, and deep partnerships continue to drive strong win rates for our sales and partner teams. These same differentiators are also empowering mid-market businesses as they expand their business models, drive global omnichannel strategies, and continue their digital transformations. This quarter, with our focused investment in building our go-to-market ecosystem with Microsoft, Workday, and Salesforce, we saw nice traction with mid-market customers. And we continue to see a steady stream of customers expanding their usage of the existing solutions they licensed with us. Beyond the technical strength of our solutions, it's the trust and experiences we deliver that gives our customers the confidence to grow with us and invest in additional solutions. We don't talk a lot about our services business on these calls, but I believe the steady growth that continues in both revenue and new business activity reflects how businesses continue to invest in their tax technology. We had a strong quarter in our services business and have a healthy backlog of [SOWs] [ph] that should enable continued growth in services revenue. I'd like to share a few highlights that really reflect how pervasive tailwinds contributed to the strength of the quarter. An existing customer, one of the largest social networks in the world, significantly expanded its business with Vertex in the first quarter. The customer manages an online marketplace where goods are bought, sold, and traded. As part of this aspect of their business, they are seeing more and more products that are subject to sales and use tax liability. Accordingly, they tripled the revenue tier of their entitlements, resulting in 7 figures of new ARR for Vertex. This company is not alone in the challenge to manage the growing tax complexities of operating a marketplace. Vertex released a global research study in Q1 that revealed that 81% of responding businesses are taking advantage of marketplaces to attract new customers and sell into more countries. Both marketplace operators and sellers need to feel confident that their chosen platforms will enable them to meet growing compliance requirements, while maintaining top performance. This was a driving factor in a 6-figure new customer win with another leading e-commerce platform. We won this business due to our Edge product, our industry-leading customer support and for more consistent and predictable pricing. Perhaps the biggest reason for selecting Vertex was that the downtime and performance of their existing solution was unacceptable in an industry that requires near perfect uptime. We also had a very exciting new logo win with one of the largest SaaS companies in the world, which also selected Vertex as their indirect tax platform in the first quarter. The customer is experiencing significant growth, both organically and through acquisitions, which increases the number of source systems the tax department needs to pull data from, for their clients. Our ability to effectively manage data across multiple systems and integration points into a single-cloud solution allowed us to earn their business. This 7-figure deal includes complex integrations with the customer CRM, ERP, and accounts payable systems. The strength of our ecosystem also played a significant role in this competitive takeaway as we partner with PwC and Accenture. This is a common scenario as most companies today are managing applications and workloads across fragmented environments. Our approach wins because we offer a single platform for all indirect tax types with interfaces to the multitude of systems our customers rely on each and every day. I can't emphasize enough how important it is for a tax professional to have confidence and consistency in their tax outcomes across all their systems, particularly as we see audit pressure intensify. One of the major food delivery companies became a customer this quarter when audit pressure opened their eyes to the importance of tax calculation accuracy to support their fast-growing business. This is a segment we have come to lead in the past few years. It's an industry where complexity rains and in-house solutions and manual process are simply not enough for tax management. Sales tax for food delivery can be impacted by hundreds of esoteric factors such as location of the restaurant, location of the end customer, how the food is prepared and even the ingredients in the food, making it one of the most complex industries we serve. Our robust tax content database, which today covers more than 700 million effective rates and rules along with our geo locator capabilities that delivers pinpoint tax area ID assignment gives our customers more precise tax calculation accuracy. And finally, let me share an example that highlights how we are winning in the middle market, a provider of industrial parts and accessories based in Europe selected Vertex in conjunction with an Oracle ERP cloud transformation. As this company grew the complexity of their needs changed, they outgrew an incumbent competitor. Our ability to handle a complex ERP integration was an important winning factor for Vertex. I'm proud of the success our teams are having on the go-to-market front, the combination of our investments in expanding the go-to-market team, as well as delivering new products and services has really helped to differentiate Vertex with customers and prospects. We are pleased with our progress in using intelligent automation to monitor for tax code changes and keep our tax content database up to date. We are also leveraging it within our solutions to help streamline workflows and ensure that our customers remain compliant with the various tax laws that impact their business. Our growing pipeline of organic and inorganic opportunities and ability to keep that momentum going on the sales front gives me confidence for the quarters ahead and in our overall strategic position in the market. John, I will now hand the call to you to provide additional details on the quarterly results.