Crestwood Associates is a US-based ERP value-added reseller that works across the Acumatica and Microsoft Dynamics product lines. Founded in 1998 and headquartered in the Chicago area, the firm reports more than 5,000 ERP implementations across its history. Crestwood is an Acumatica Gold Certified Partner and was named Acumatica US Partner of the Year in 2016 and 2017, Manufacturing Partner of the Year in 2019, and a multi-year member of the Acumatica President's Club. The firm has also been recognised in the Microsoft Dynamics Inner Circle. Service work covers full ERP lifecycle support: discovery, software sales, implementation, integration, optimisation and managed support, with vertical focus areas in manufacturing, distribution, construction, retail and professional services. Crestwood publishes a defined 90-day migration framework for moving customers from QuickBooks, Microsoft Dynamics GP, Dynamics SL, Sage 100 and Sage 300 onto Acumatica or Dynamics 365 Business Central. The firm also develops and supports its own portfolio of add-on products for Acumatica, including reporting and operational extensions, and has won ISV partner recognition such as Velixo Partner of the Year. In 2023 it announced a merger with Stanley Stuart Yoffee & Hendrix (SSYH), expanding its footprint and public-sector practice.