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

5 Companies - Rankings updated: May 15, 2026

DesignRush vets all agencies based on professional qualifications and verified customer feedback to help you choose confidently. Some featured agencies maintain paid sponsorships.

United States × South Carolina × Charleston ×
  • Top US Mobile & Web App Development Agency

    AppMakers USA embeds security in building its mobile apps. Specializing in healthcare, fintech, and EdTech, the cybersecurity company has launched 400+ apps and helped clients raise $1 billion. Best for startups and mid-size companies that need mobile app development with robust security frameworks.  [... see all AppMakers USA reviews ]

    Top Services:

    • Cybersecurity
    • IT Services
    • Wearables
    Location
    Charleston, South Carolina
    Number of Employees
    Under 49
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    83 Projects Listed

    AppMakers USA Services

    • Mobile App Development
    • UI/UX Design
    • AI Development
    • Software Development
    • Web Design
    • Staff Augmentation
    • Web Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • CVS Pharmacy
    • Austin Ekeler (NFL Player)
    • ClassCalc
    • Number Hive
    • BookClub
    • Arcxis
    • Debate club
    • Bayut
    • Los Angeles Apparel
    • Sun Scooter
    Data sourced from the agency's DesignRush profile

    AppMakers USA Reviews & Testimonials

    • Awital Ifrah
      Awital Ifrah Program manager at Masa Israel journey
      5.0

      Cross-Platform Review from Awital Ifrah

      Masa came in with a pretty loose idea and AppMakers helped turn it into something solid. What I appreciated most is they didn't overcomplicate it or try to make it into some giant monster platform. They listened, asked smart questions, and helped us focus on what would actually matter for alumni and current participants. The end result felt thoughtful and realistic. I'd definitely work with them again.

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    • Moishi Stern
      Moishi Stern Customer support at Madlan
      5.0

      Startup Review from Moishi Stern

      We create live events. We wanted a site that shows what we do without making people dig. AppMakers listened, trimmed the fluff, and gave us pages that read fast and look good on a phone. The quote form asks the right things and our team can update galleries without calling a developer. They stayed on schedule and answered messages the same day. The whole process was calm and clear. We already see better inquiries. It feels like a real upgrade, even before the full rebuild.

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    • Jubilee Haddasah Munozvilla
      Jubilee Haddasah Munozvilla CEO at Its Kinda Catchy
      5.0

      Small Business Review from Jubilee Haddasah Munozvilla

      We loved working with AppMakers. They built us a procurement system to help quickly and easily secure materials for our labs. The process was smooth and the outcome was stellar.

      Show more
    Reviews verified by DesignRush and sourced from the agency's profile
  • 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.  [... view Forvis Mazars US profile ]
    Location
    Charleston, South Carolina
    Number of Employees
    1000 & Up

    Forvis Mazars US Services

    • Business Consulting
    • Accounting
    • Cybersecurity
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Real Estate Industry
    • Construction Industry
    • Healthcare Industry
    • Legal Industry
    • Nonprofit Industry
    Data sourced from the agency's DesignRush profile
  • 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  [... view Modulant profile ]
    Location
    Charleston, South Carolina
    Number of Employees
    100 - 249
    Average Hourly Rate
    $100/hr

    Modulant Services

    • Cybersecurity
    • Big Data Analytics
    • IT Services
    • Mobile App Development
    • Software Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • SpaWar
    • Wellis Fargo
    • BlueCross Blueshield
    Data sourced from the agency's DesignRush profile
  • 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.  [... view Johnson Lambert profile ]
    Location
    Charleston, South Carolina
    Number of Employees
    100 - 249

    Johnson Lambert Services

    • Business Consulting
    • Accounting
    • Cybersecurity
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Insurance Industry
    • Non-profit Industry
    • Technology Industry
    Data sourced from the agency's DesignRush profile
  • Secure, Smart, Scalable Solutions.

    CodeLynx INC is a software engineering and electronic security services provider based in Charleston, South Carolina.  [... view CodeLynx profile ]
    Location
    Charleston, South Carolina
    Number of Employees
    Under 49
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $25,000 - $50,000

    CodeLynx Services

    • Software Development
    • IT Services
    • Cybersecurity
    • IoT
    • Mobile App Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Blackbaud
    • Spawar
    • Alcoa
    Data sourced from the agency's DesignRush profile

About The Author and Expert Reviewer

Selina Garcia has authored 500+ articles and edited 50+ published books in economics, law, and history. Her unique blend of experiences allows her to approach content creation from a well-rounded perspective. Currently, Selina applies her expertise to producing insightful articles on IT, software, and applications for DesignRush.

Former Development Director

Sergio is a technology leader with over six years of experience managing global teams and delivering projects across fintech, sportstech, and B2B platforms. At DesignRush, he drove product growth and development execution, building tools that speed up processes by 95% and cut costs by 35% while maintaining full uptime.