Thanks, Paul. Good morning and thank you all for joining us today to discuss our first quarter results. ABM posted solid results in the first quarter, reflecting strong execution by the ABM team, amid a challenging operating environment. Organic revenue grew 1% even as we experienced a $35 million reduction in disinfection-related work orders versus the prior year period. Adjusted EBITDA was essentially unchanged from last year as we effectively mitigated much of the impact from higher wage costs, labor shortages and lower disinfection-related work orders. In all, ABM generated first quarter revenue of $2 billion with an adjusted EBITDA margin of 6.4%, which remained well above pre-pandemic levels, reflecting improved operational efficiency that we believe can be enhanced over time through our ELEVATE initiatives. So, I'm certainly pleased with our performance in the first quarter and that we remain on track to achieve our full-year outlook. Despite continued economic uncertainty and persistent inflationary pressures, our business remains resilient given the essential nature of our services. Our clients are increasingly focused on attracting talent and retaining customers by creating and maintaining environments that are inviting healthy and energy-efficient. We remain uniquely positioned to support them, given our financial strength and industry-leading capabilities, and the fact that we continue to innovate, has never been more appreciated or important to our clients. I'll now discuss the demand environment for each of our industry groups. Beginning with B&I, office occupancy rates in the first quarter remained at relatively stable levels at around 50% on a blended basis, though occupancy varies region by region and by day of the week. We don't expect significant changes to these trends in 2023 as employers continue to accommodate remote and hybrid work. So office occupancy will likely marginally tick up. Our expectation is that through 2023 B&I will be the steady performer we are accustomed to. Moving to Aviation, following a rapid recovery in travel last year, consumer and business travel, including parking and transportation has largely returned to pre-pandemic levels. As a result, we anticipate that our Aviation revenue growth rate in 2023 will be reflective of more normalized overall market growth as compared to the accelerated level we experienced in fiscal 2022. We do expect continued growth in our ABM Vantage parking solution, which is proving to generate higher revenue for our clients, while improving the traveler experience. That all being said, labor cost inflation and worker availability remain ongoing challenges in this segment, in part exacerbated by the lengthy TSA background check process that we've spoken about. I'm pleased to announce that after quarter end, we received formal approval on the parking project we discussed last quarter. As you'll remember we had completed much of the work in 2022, but we were awaiting final client approval in order to recognize the revenue and associated earnings. The project revenue will be recognized in Q2. Moving on demand in Manufacturing and Distribution continues to be strong, and our team is doing an outstanding job of driving organic growth by expanding the served markets and bringing on new clients. As an example, ABM has won nearly $50 million of new business in the U.S. semiconductor manufacturing market over the past 12 months. This area is experiencing renewed growth, driven by the recent enactment of the CHIPS and Science Act. This legislation provides approximately $280 billion to fund domestic research and manufacturing of semiconductors. We expect revenue growth in our M&D segment to remain solid for the remainder of the year. Turning to Education. The addition of sizable new clients in the fourth quarter of 2022 helped drive solid mid-single-digit organic revenue growth in this segment. We have a strong pipeline of new business opportunities in the fiscal year, and I'm confident ABM will win our fair share given our competitive positioning. While labor cost inflation in non-unionized markets continues to be a challenge for the segment, we incrementally reduced over time this quarter by filling open positions more quickly than in 2022, and our focus on hiring in this area should prove beneficial in the near term. In Technical Solutions, we continue to see the benefits from the demand for electric vehicles and the consequent need to expand EV charging infrastructure. This shift to EVs will be a multi-year trend, providing ample opportunity for ABM in the future. After several quarters of strong growth, our EV-related revenue declined in the first quarter, primarily reflecting program timing and supply chain delays. Demand remains strong and we expect the pace of EV charger installations to pick up in the second half of the year as we begin to deliver on recently won programs. RavenVolt continues to experience strong customer demand for its microgrid solutions and the sales pipeline continues to grow, though first quarter installations were impacted by some lingering supply chain constraints in what is typically a seasonally slower period. Total ATS backlog has grown significantly to nearly $450 million supporting our outlook for strong full-year revenue growth, escalating in the back half of the year. From a strategic perspective, we've continued to make progress on our ELEVATE initiatives. Most notably, we're developing a new mobile app for our frontline team members. This app will facilitate a smoother time and attendance experience, offer greater clarity on work schedules on tests and pride quick access to shift change notifications. We should begin piloting this app by the middle of this year with a rollout plan for 2024. We're also beginning to scale a workforce management tool that enhances visibility into labor productivity levels across our portfolio of accounts. These advanced analytics will enable more efficient labor management over time and also provide actionable insights to enhance the efficiency of lower-performing buildings. We're also in the final stages of testing our cloud-based ERP financial system for its initial deployment. This segment-by-segment rollout will begin midyear as part of our ELEVATE technology roadmap. From an IT and innovation standpoint, we are at an exciting time for ABM as a great deal of hard work begins to get embedded across the organization. Lastly, our team has been making some great progress on our ESG journey, which resulted in a couple of nice accolades for ABM. We were recently recognized by Newsweek as one of America's Most Responsible Companies. And we also won the prestigious SEAL Business Sustainability Service Award. We also formally launched an initiative called ABM Impact Groups, which are voluntary employee-led groups, whose aim is to foster a diverse inclusive workplace aligned with ABM's mission, values and business strategy. Before I turn it over to Earl, I want to make a few summary comments. I couldn't be proud of the entire ABM team, who continue to deliver solid results, despite challenging market conditions. ABM's resilience and our ability to adapt, innovate, scale and deliver results in dynamic conditions is truly a hallmark of our company. As we move forward, I'm confident that our team will continue to provide our clients with extraordinary service and build value for our shareholders. Our business is supported by a substantial base of recurring revenue in our janitorial, engineering and parking services. Where we serve more than 20,000 clients and we will continue to invest organically and in adjacent businesses with large addressable markets and high growth rates and margins, which were certainly demonstrated with the ramp-up of our EV charging business and the acquisition of RavenVolt. As we execute this strategy, we see ABM evolving into a higher growth, higher margin facility solutions provider underpinned by the resilient strength of our core businesses. Now, I will turn it over to Earl for the financials.