# eIS Business Solutions > eIS Business Solutions is a CPA-led ERP and business application consultancy specializing in Microsoft Dynamics GP, Dynamics 365 Business Central, and custom application development on the Microsoft Power Platform. The firm emphasizes accounting accuracy, strong internal controls, financial integrity, and long-term system usability for small and mid-sized businesses. ## About - [Why eIS](https://www.eisbusinesssolutions.com/why-eis/): The "4 I's" methodology — Insight, Innovation, Information, and Instruction — and the value of certified, CPA-led implementation partners. - [About eIS Business Solutions](https://www.eisbusinesssolutions.com/why-eis/eis-business-solutions/): Company mission, approach to realistic SMB solutions, and dedication to client success. ## Solutions - [Microsoft Dynamics GP](https://www.eisbusinesssolutions.com/): On-premises, hosted, or hybrid ERP for accounting, payroll, financial management, and supply chain — including GP modernization and support for organizations not migrating. - [Microsoft Dynamics 365 Business Central](https://www.eisbusinesssolutions.com/): Cloud ERP for growing organizations, with discovery-led implementations, audit-ready configuration, multi-entity support, and post-go-live optimization. - [Microsoft Power Platform & Custom Applications](https://www.eisbusinesssolutions.com/): Power BI, Power Apps, Power Automate, Dataverse, and Copilot solutions; finance-aware custom apps that integrate securely with GP and Business Central. ## Knowledge Base - [FAQ](https://www.eisbusinesssolutions.com/about-us/faqs/): In-depth Q&A covering eIS's CPA-led approach, Dynamics GP support and risks, Business Central implementation pitfalls, custom application development, accounting controls and reporting, multi-entity consolidations, customization vs. extensions, data ownership, Standard vs. Platinum support, and AI/Copilot readiness. ## Resources - [Blog](https://www.eisbusinesssolutions.com/blog/): Insights from the team on ERP, Business Central, GP, and the Power Platform. - [Case Studies](https://www.eisbusinesssolutions.com/case-studies/): Examples of Microsoft Dynamics implementations across industries. - [Affiliations & partnerships](https://www.eisbusinesssolutions.com/affiliations-partnerships/): IAMCP, Microsoft Dynamics GP & D365 Business Central, STF Consulting, AICPA, and Microsoft for Business and Industry. ## Contact - [Contact](https://www.eisbusinesssolutions.com/contact/): Website form and details, or call 877-585-5160. ## Site by Clique. - [Site by Clique.](https://clique.uy)