Mainstream CyberSecurity Services

Computer and Network SecurityNew Hampshire, United States2-10 Employees

Mainstream CyberSecurity Services operates in the computer and network security sector, offering a spectrum of services from virtual chief information security officer (V-CISO) guidance to fully outsourced cybersecurity operations. The company begins engagements with a network-wide device scan to identify security needs and collaborates with clients to develop comprehensive cybersecurity plans, potentially extending to sourcing, monitoring, and day-to-day management of security functions. Its offerings are designed to help regulated industries and government entities—across city, county, state, and federal levels—strengthen their security posture and respond to threats through a Virtual Security Operations Center and experienced security architects. Based in Merrimack, New Hampshire, the firm has a long-standing history dating back to 1991 and positions itself as a provider that tailors its services to meet the evolving needs of organizations requiring robust cybersecurity management. Recent activity includes ongoing cybersecurity service provision across a range of clients, reflecting its role as an external security partner for diverse sectors.

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