CSI Software is a Lima-based software development company serving businesses across Peru. It creates tailored, production-ready systems designed around real operational needs, with a focus on speed, reliability, and integration with SUNAT. Its offerings include CSI FACT, a touch-screen point-of-sale and electronic invoicing system for retailers, with offline sales, synchronized transactions, and support for thermal printers. The company also provides an Android printing app, mobile-friendly web catalogs with WhatsApp ordering and synchronized stock, and CSI FACT ERP for financial reporting, credit management, and business oversight.

For tax operations, CSI Contable supports SUNAT SIRE workflows, including review of purchase and sales records, tax calculations, and export files. CSI Software’s portfolio also includes cloud-based veterinary practice management, dental clinic software with clinical and AI-assisted tools, and QuickDrop, a PIN- and QR-based file-sharing service. Across these products, the company serves sectors such as retail, accounting, veterinary care, dentistry, and education. CSI Software offers product demonstrations and local technical support from its base in San Isidro, Lima.