Wiss
AccountingNew York, United States501-1000 Employees
Wiss is a full-service accounting and business advisory firm headquartered in New York, New York, at 352 Park Avenue South, 9th Floor, 10010. The firm employs 501 to 1,000 people and concentrates on middle-market clients, offering advisory and assurance services along with advanced accounting solutions powered by AI and data analytics. Founded more than 50 years ago, Wiss serves privately held, investor-backed, and family-run businesses, providing services including accounting, tax strategies, family office services, and wealth management to support growth across the business lifecycle. Wiss has been recognized by IPA Top 100 Firms, USA Today's Most Recommended Firms, and Accounting Today's Fastest Growing Firms, indicating a notable market presence within its sector. The company pursues technology partnerships and AI-enabled solutions, including collaborations with Netgain Solutions to integrate NetAsset within NetSuite and with Rillet, an AI-native ERP platform, to enhance its technology stack.