Explore the best cybersecurity agencies in Charleston, South Carolina, to safeguard your digital assets. DesignRush features firms that have worked with trusted names like NHS and Abbvie. With over 1M monthly visitors and 40,000+ vetted agencies, our platform is designed to connect you with the right experts for your needs. Compare providers by industry expertise, client type, budget, reviews, team size, and portfolio.

Best Charleston Cybersecurity Firm Rankings

4 Companies - Rankings updated: August 14, 2026

Every agency on DesignRush meets evaluation criteria around expertise and client feedback to empower informed choices. Some listings include paid partnerships.

United States × South Carolina × Charleston ×
  • Delivering Unmatched Accounting Services.

    Delivering Unmatched Accounting Services.

    Forvis Mazars is a leading public accounting firm ranked among the top 10 in the nation. With a forward vision and unwavering commitment to unmatched client experiences, we redefine excellence in the industry. Formed through the merger of two esteemed firms, BKD and DHG, FORVIS combines legacy and innovation...

    Top Services:

    • Business Consulting
    • Accounting
    • Cybersecurity
    • IT Services
    • Show more
    Location
    Charleston, South Carolina
    Number of Employees
    1000 & Up
  • Smart Data, Seamless Integration.

    Smart Data, Seamless Integration.

    Whether it is Big Data, Legacy Data, Complex Data, Integrating Data or Data People...Modulant knows data. Fortune 1,000 companies, federal government agencies and local governments have relied on Modulant for data management, systems integration, software development and IT staffing solutions that improve...

    Top Services:

    • Cybersecurity
    • Big Data Analytics
    • IT Services
    • Mobile App Development
    • Software Development
    • Show more
    Location
    Charleston, South Carolina
    Number of Employees
    100 - 249
    Average Hourly Rate
    $100/hr
  • Accounting & Cybersecurity Experts

    Accounting & Cybersecurity Experts

    Johnson Lambert was formed in 1986 in the Washington, DC area by Larry Johnson and Debbie Lambert, Partners Emeriti. Prior to the formation of Johnson Lambert, Larry and Debbie were both affiliated with Ernst & Whinney (now EY), where they were active leaders in the firm’s insurance practice...

    Top Services:

    • Business Consulting
    • Accounting
    • Cybersecurity
    Location
    Charleston, South Carolina
    Number of Employees
    100 - 249
  • Secure, Smart, Scalable Solutions.

    Secure, Smart, Scalable Solutions.

    CodeLynx INC is a software engineering and electronic security services provider based in Charleston, South Carolina...

    Top Services:

    • Software Development
    • IT Services
    • Cybersecurity
    • IoT
    • Mobile App Development
    • Show more
    Location
    Charleston, South Carolina
    Number of Employees
    Under 49
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $25,000 - $50,000

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