Peachtree Accounting, Inventory, and more for small businesses Peachtree Quantum provides Inventory Control, Accounting, Job Costing  and more. Peachtree Quantum is Business Management Software for small businesses who want traditional audit trails, plus advanced ease-of-use features. Compare Peachtree to QuickBooks with the link to the right. Business Management Systems and Consulting MBSG provides experts in Peachtree and other Business Management software for Inventory Control, ERP, Accounting, CRM, and Business Intelligence. Links Compare  Peachtree to QuickBooks Peachtree Quantum – Download a Feature Sheet