Miami businesses sit on some of the most attractive data in the country for attackers. Brickell banks and wealth managers handle cross-border money for clients across Latin America, hospitals and clinics hold years of patient records, hotels and cruise operators process card payments around the clock, and a growing fintech and crypto scene moves digital assets every second. Add PortMiami logistics, a busy real estate market and law firms that close large transactions, and you get a metro where wire fraud, ransomware and data theft are daily business risks rather than abstract threats.
Attackers are also faster than they were two years ago. AI tools now write convincing phishing emails in English and Spanish, clone executive voices for payment fraud and scan for exposed systems at a scale that small security teams cannot match by hand. For South Florida companies, the question is no longer whether to get outside help but which kind: a forensics firm on retainer, a managed detection provider, a specialist in blockchain or fraud intelligence, or a local managed IT partner that bakes security into everyday support.
This list covers ten cybersecurity companies headquartered in Miami-Dade or with a staffed South Florida office. Each one was checked against its own website for services and location. If you want to compare these firms with national players, our list of the top cybersecurity companies in 2026 is a useful companion.
Healthcare, finance and professional service firms
Managed IT, firewall and anti-malware, compliance support
Best Cybersecurity Companies In Miami For 2027
1. ERMProtect — PCI Forensic Investigator With Full Testing And Audit Practice
ERMProtect is a Coral Gables firm that covers most of what a regulated organization needs from an outside security partner. Its work spans cybersecurity assessments against frameworks such as NIST CSF, ISO 27001 and PCI DSS, penetration testing of networks, web and mobile apps, cloud, wireless and ICS/SCADA systems, social engineering, SOC 2 audits, digital forensics and incident response, and virtual CISO support. It is best for banks, payment processors, hospitals, universities and government agencies that answer to auditors and regulators.
What stands out is its standing in payment card security. ERMProtect is one of a small group of PCI Forensic Investigator (PFI) companies authorized to investigate card breaches, and it lists QSA and PFI credentials alongside SOC 2 capability. That combination means the same firm can test your controls before an incident and investigate if card data is exposed. It has also added AI strategy and risk services, including an AI security gap analysis, which suits Miami financial firms that are rolling out AI tools faster than their policies can keep up.
2. CYPFER — Ransomware Response And Recovery From A Brickell Office
CYPFER is an incident response and recovery firm whose US headquarters sits on Brickell Avenue, with additional offices in London, Toronto, Utrecht, the Cayman Islands and Mexico City. Its core work is getting companies back on their feet after business email compromise, cloud breaches, web application attacks and ransomware. It also offers digital forensics for internal investigations and eDiscovery, data recovery from damaged drives and servers, incident response retainers and cyber awareness training.
The firm is best for organizations that want a responder with a local team rather than one flying in from another state. CYPFER describes its Miami team as available around the clock, and its Mexico City and Caribbean offices give it reach into the Latin American and offshore markets that many Miami companies already do business with. For buyers, the practical value is a single partner that handles forensics, recovery and expert testimony. Pair this with our guide on how to handle a ransomware attack when you build your response plan.
3. Halborn — Blockchain Security Audits Plus AI Red Teaming
Halborn is a Miami-based security firm built for blockchain and digital asset companies. Its assurance work covers smart contract assessments, blockchain layer 1 reviews, code security audits, web application and cloud penetration testing, and full red team exercises. On the advisory side it handles custody and key management assessments, technical due diligence, compliance readiness and training. It is best for exchanges, custodians, stablecoin issuers, tokenization platforms and banks moving into digital assets.
Halborn holds ISO 27001:2022 and SOC 2 Type 2 certifications and reports more than 5,000 completed assessments. Its client logos include large names in crypto and payments. The firm has also extended its offensive work into AI, with AI security assessments and AI red teaming for companies deploying agents and large language models. For Miami’s crypto and fintech community, where a single contract bug can drain funds in minutes, having a local team that understands both code and money movement is a real advantage.
4. Q6 Cyber — Dark Web Fraud Intelligence For Financial Institutions
Q6 Cyber is a Miami-based threat intelligence company founded in 2016 to watch the private forums and marketplaces where stolen checks, card data and banking credentials are traded. Its services fall into three areas: fraud prevention, cyber threat hunting outside the network perimeter, and intelligence support for incident response and forensic investigations. It is best for banks, credit unions and payment companies that see fraud losses but cannot see where those attacks are planned.
What sets Q6 Cyber apart is its focus on confirmed compromises. The company says its findings are validated by human analysts, tagged by fraud type and deduplicated before they reach the customer, and that it monitors criminal sources in the languages those communities use across Eurasia, Latin America, Europe, China and the US. It serves institutions from $200 million to $2 trillion in assets and received a growth investment from Charlesbank Capital Partners in 2025. For Miami banks with Latin American exposure, that language coverage matters.
5. Appgate — Zero Trust Network Access For IT, OT And AI Agents
Appgate is a Coral Gables company that sells zero trust network access (ZTNA) as a replacement for legacy VPNs. Its platform enforces identity-based policies across users, devices and workloads, with separate offerings for IT environments, operational technology such as plants and industrial systems, and AI agents that need controlled access to data. Add-on modules handle application discovery and adaptive risk scoring. It is best for enterprises and public sector bodies with complex, hybrid networks.
Appgate is more than a software vendor. Its cyber advisory team runs adversary simulation and penetration testing, third-party access risk assessments and disruptive attack simulations that test continuity of operations. The company has a federal division and lists US military branches and GSA among its users. Its ZTNA for AI product is worth a look for any Miami firm that is connecting AI agents to internal systems, since it monitors and limits what those agents can reach. The site is available in English and Spanish, which helps Latin American subsidiaries.
6. Lumu Technologies — Network Detection And Response With Autonomous Incident Handling
Lumu Technologies has its global headquarters in Doral, with offices in Bogota, Sao Paulo and Madrid. Its SecOps platform detects and responds to threats across network, endpoint, identity and cloud, and pushes automated responses through the security tools a customer already owns. Products include Defender for network detection and response, Autopilot for autonomous incident management, Discover for attack surface assessment and Maltiverse for threat intelligence. It is best for lean security teams, school districts and MSPs that need detection without hiring a large SOC.
Lumu’s approach is built on what it calls Continuous Compromise Assessment, which uses network metadata to spot hosts that are already talking to attacker infrastructure. That makes it useful for organizations that suspect they have gaps between their firewall and endpoint tools. GigaOm named Lumu a Leader in its 2026 NDR Radar, and the platform integrates with major vendors including Palo Alto Networks, Fortinet, CrowdStrike and Microsoft Defender. A free compromise assessment lets buyers test it on their own traffic first.
7. Kaseya — Security And Backup Stack Built For MSPs
Kaseya has been headquartered in Miami since 2004, with its main office on SE 2nd Avenue downtown. It builds IT management and security software used by managed service providers and internal IT departments. Its security lineup includes INKY for email security and phishing protection, SaaS Alerts for SaaS identity monitoring, vPenTest for automated penetration testing, and Datto and Unitrends products for backup, disaster recovery and SaaS protection. It is best for MSPs and IT teams that want security, monitoring and recovery from one vendor.
Kaseya earns a place here because so many South Florida small businesses are protected through an MSP rather than an in-house security team, and Kaseya builds tools for exactly that model. Its layered approach targets the threats that hit small firms hardest: ransomware, phishing and account takeover. For a Miami IT team, vPenTest offers a way to run regular network tests between manual engagements, and Datto BCDR gives a tested path back from ransomware. Kaseya has also expanded its Miami workforce and announced a 24/7 security operations center in the city, which keeps a sizable technical team in the metro.
8. Cipher — xMDR Across Six Security Operations Centers
Cipher is the cybersecurity division of Prosegur, with its US office in Deerfield Beach in South Florida and a presence in five countries. It runs managed detection and response through its xMDR platform and services, which use AI to detect and respond to threats on top of a customer’s existing technology. It also provides managed security services, governance, risk and compliance support, and PCI DSS compliance services. It is best for mid-market and enterprise companies that want 24/7 monitoring without building an in-house SOC.
Cipher has more than 20 years in operation and over 200 cybersecurity professionals, and it runs six cybersecurity operations centers with local management. Its long PCI DSS history is relevant for retailers, hospitality groups and payment businesses in South Florida. Because it operates across the Americas and Europe, it suits Miami companies with offices in Latin America that need consistent monitoring across countries. Buyers comparing it with other options should also review our list of managed detection and response providers.
9. Falcon IT Services — Managed Security For Miami-Dade And Broward Small Businesses
Falcon IT Services is a Miami managed IT and security provider based on Biscayne Boulevard that serves businesses across Miami-Dade and Broward counties. Its security services include continuous network monitoring, unified threat management, next-generation antivirus, employee phishing and social engineering training, full security assessments, backup and disaster recovery, data loss prevention, endpoint security, intrusion detection and continuous vulnerability scanning. It is best for small and midsize firms that want one local team to handle both IT support and security.
A detail worth noting is its use of honeypots for early detection, a technique more often seen in larger security programs. Falcon also offers compliance support, contingency planning and gap analysis, plus private on-premise AI for compliance work, which suits law firms, medical practices and financial offices that cannot send client data to public AI tools. Support runs on weekdays with extended Saturday hours, and the firm offers a free consultation for new clients.
10. Ciegate Technologies — Managed IT With Compliance Support For Healthcare And Finance
Ciegate Technologies is a managed IT and security provider with an office in southwest Miami-Dade and a second location in Charlotte. Its security services protect client networks with UTM firewalls and anti-malware tools, backed by around-the-clock monitoring and 24/7 IT support. It is best for healthcare practices, financial firms and professional service offices that want security handled as part of their regular IT support rather than as a separate contract.
Ciegate’s compliance coverage is broader than many small MSPs offer, with support for CIS, CMMC, HIPAA, NIST 800-171 and TISAX. That makes it an option for local medical groups dealing with HIPAA and for small manufacturers or suppliers chasing defense or automotive contracts. Its case studies include a physical therapy practice it has worked with since 2007 and an orthodontics office, which reflects its focus on long-term relationships with small regulated businesses.
How To Choose A Cybersecurity Company In Miami
The firms above do very different jobs, so start by naming the problem you need solved. These questions will help narrow the field.
Do We Need A Project Partner Or Ongoing Monitoring?
Penetration tests, audits and forensic investigations are projects with a clear start and end. Managed detection, managed IT and threat intelligence are ongoing services billed monthly. Many Miami companies need both: a testing firm to find gaps once or twice a year, and a monitoring partner to watch for attacks every day. Decide which gap is bigger before you start calls.
Which Regulations Apply To Our Business?
Card payments bring PCI DSS, patient data brings HIPAA, defense supply chains bring CMMC, and SaaS customers often ask for SOC 2. Ask each provider which frameworks it has audited or tested against, and whether it holds the relevant credentials, such as QSA status for PCI work. A firm that already speaks your regulator’s language will produce reports your auditors accept.
How Fast Can They Respond If We Are Breached?
Ask for the response time written into the contract, not the one quoted in the sales call. If you do not have a responder on retainer, line one up before an incident so contracts, insurance approvals and contact details are ready. Your cyber insurer may also have a panel of approved firms, so check that list too.
Can They Support Our Spanish-Speaking Staff And Latin American Offices?
Many Miami companies run teams in both English and Spanish, and some operate offices across Latin America. Security training, phishing simulations and incident communication work better in the language your staff use daily. Ask whether the provider can deliver training and reports in Spanish and whether it covers the countries where you operate.
How Do They Handle AI-Driven Threats And Our Own AI Tools?
Voice-cloned payment requests and AI-written phishing are already hitting South Florida finance teams. At the same time, your own staff may be pasting client data into AI assistants. Ask each provider how it tests for deepfake and social engineering risk, and whether it can assess or govern the AI tools your business uses.
Conclusion
Miami’s mix of international banking, healthcare, hospitality, crypto and trade gives it a security market with real depth. Regulated firms that need audits and forensic backup should start with ERMProtect, while companies worried about ransomware should have a responder like CYPFER lined up in advance. Digital asset businesses have a local specialist in Halborn, banks fighting fraud can look at Q6 Cyber, and enterprises modernizing remote access can evaluate Appgate. For everyday protection, Lumu, Kaseya and Cipher offer detection and recovery tools, and Falcon IT Services and Ciegate Technologies give small businesses a local team that handles security as part of IT support. Shortlist two or three firms that match your main risk, ask for sample reports, and confirm response commitments in writing before you sign.
