Technical Support International

Overview

About

Technical Support International (TSI) is an enterprise managed IT services provider, Managed Security Service Provider (MSSP), and defense cybersecurity compliance specialist located at 125 Cambridgepark Drive, Suite 301, in Cambridge, Massachusetts. Founded in 1989 and led by Chief Executive Officer Chris Souza, TSI possesses more than thirty-five years of continuous operating history providing mission-critical technology governance and systems engineering. The consultancy specializes in supporting organizations operating in high-consequence, heavily regulated environments, particularly contractors within the United States Defense Industrial Base (DIB), advanced manufacturers, biotechnology firms, and professional service institutions.

TSI distinguishes itself nationally through its dedicated regulatory compliance practice, focusing on NIST SP 800-171 standards and Cybersecurity Maturity Model Certification (CMMC 2.0) requirements. As an active member of the Exostar CMMC Partner Network and in technical alliance with PreVeil, CyberSaint, and NQA, TSI guides defense contractors through System Security Plan (SSP) creation, Plan of Action and Milestones (POA&M) closure, and formal C3PAO third-party audit preparation. The firm deploys end-to-end encrypted file sharing, email architectures, and sovereign cloud environments that ensure controlled unclassified information (CUI) remains fully compliant with federal standards.

The core service architecture of TSI is structured around its proprietary tiered security offerings—branded as I-Defend, I-Protect, and I-Guard. These managed programs integrate 24/7/365 Security Operations Center (SOC) coverage, continuous SIEM telemetry analysis, vulnerability scanning, external and internal penetration testing, and incident response planning. TSI also provides extensive workforce cyber defense training, incorporating scheduled phishing and vishing simulations that teach employees to identify advanced social engineering attempts.

Alongside advanced security, TSI delivers comprehensive managed IT services, including round-the-clock remote network monitoring, automated patch management, mobile device administration, and an accessible, responsive technical helpdesk. The firm provides executive-level virtual CIO (vCIO) and virtual CISO (vCISO) advisory, assisting corporate boards with multi-year capital forecasting, disaster recovery planning, and IT governance. In cloud infrastructure, TSI manages secure virtualization environments and automated cloud data replication to guarantee business continuity. Defense suppliers and commercial enterprises in Cambridge can contact TSI at (508) 543-6979 to implement compliant, enterprise-grade IT operations.