Sigma Management Solutions LLC

At Sigma Management Solutions LLC, we help businesses thrive by keeping their finances organized, accurate, and insightful. We specialize in bookkeeping, general ledger accounting, reconciliations, financial reporting, catch-up and clean-up projects, and more. As a trusted partner, we also provide Certified Acceptance Agent (CAA) services to assist with ITIN applications, and we support small businesses with tailored QuickBooks Online solutions. Whether you need help managing day-to-day transactions, month-end close, intercompany allocations, or preparing your books for growth, Sigma delivers clarity and peace of mind so you can focus on what matters most — running your business.