Sigma Networks

About Sigma Networks

Sigma Networks operates as a managed IT solutions provider with a focus on delivering comprehensive technology strategies for small and medium-sized businesses. Founded in 2005 by Charles Ambrosecchia, the Dallas-based company was established to bridge the gap between advanced technology and practical business needs. The founder and CEO, Charles Ambrosecchia, brings over two decades of experience in the IT and telecommunications sectors, having designed and managed the deployment of carrier data centers for large global enterprises. His background includes an Electromechanical Engineering degree and an MBA in Corporate Finance, providing a foundation in both technical and strategic business areas.

The company's business model is centered on acting as a dedicated IT partner for its clients, offering managed services that encompass proactive monitoring, maintenance, and issue resolution. Revenue is generated through tailored service packages that provide enterprise-level IT support at a cost structure designed for smaller businesses. Sigma Networks serves a diverse client base by transforming their IT infrastructure into a functional asset, whether that involves upgrading legacy systems, supporting a remote workforce, or building resilient data centers.

Sigma Networks' service portfolio is extensive, covering infrastructure, cybersecurity, telecommunications, and managed services. In networking, the firm designs, implements, and manages local and wide area networks (LAN/WAN), including multi-site and wireless solutions, to ensure reliable connectivity. Its cybersecurity offerings provide multi-layered protection against threats like malware and ransomware through firewalls, data encryption, and real-time threat detection. The company also specializes in Voice over IP (VoIP) services, partnering with technology providers like Grandstream and 3CX to deliver cost-effective communication systems. Furthermore, Sigma Networks provides managed security (MSSP) and disaster recovery solutions, which include creating custom recovery plans and secure off-site backups to ensure business continuity.