Top Cybersecurity Companies in New Hampshire

We ranked 5 cybersecurity companies in New Hampshire on client reviews, how many are verified, service focus and profile completeness. Updated October 2026. How rankings work

Firms that assess, harden and monitor systems, and help companies meet security and compliance requirements.

Some positions in this list are sponsored. We may earn a fee for placements. Learn more

  1. Keene managed IT, cloud infrastructure, and cybersecurity for the Greater Monadnock region.

    No reviews yet

    Keene, NH

    • Managed IT Services
    • Cybersecurity
  2. New Hampshire managed IT, information security, and technology leadership for growing organizations.

    No reviews yet

    Manchester, NH

    • Managed IT Services
    • Cybersecurity
    • AI & Automation
  3. Somersworth managed and co-managed IT provider supporting business systems and security.

    No reviews yet

    Somersworth, NH

    • Managed IT Services
    • Cybersecurity
  4. Moultonborough managed IT, cybersecurity, and telecom support for New Hampshire small businesses.

    No reviews yet

    Moultonborough, NH

    • Managed IT Services
    • Cybersecurity
  5. Newington managed IT and cybersecurity provider serving organizations across northern New England.

    No reviews yet

    Newington, NH

    • Managed IT Services
    • Cybersecurity

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