An Alloy Silverstein Group Company. You can count on us for no more hassles with your payroll. Abacus Payroll, Inc. has been a leading payroll provider serving the business communities of the Greater Philadelphia Region since 1999. At Abacus, our team of top-flight accounting professionals is dedicated to supporting your business today and into the future. Whether you’re a small, family-owned shop, a mid-sized professional services firm, or a Fortune 500 corporation, our mission is to provide you with reliable, timely, and effective accounting and payroll solutions customized to meet your specific needs. Our accountants and tax specialists are committed to giving you the highest level of customer service. Your business deserves the best we have to offer every day, in every situation, and during every conversation. Our relationships with our clients are very important to us. Without you, we don’t exist. Follow us on Twitter @AbacusPay