Best Managed Security Services Providers (MSSPs) - Page 4

How Many Managed Security Services Providers (MSSPs) Products Does G2 Track?

Total Products under this Category: 366

Category Stats (Sep 2026)

  • Average Rating: 4.58/5 (↑0.01 vs Aug 2026) The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: Access360 (+6.25%) - Among all products in this category, Access360 recorded the largest rating increase compared to last month

Last updated: September 01, 2026

How Does G2 Rank Managed Security Services Providers (MSSPs) Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 900+ Authentic Reviews
  • 366+ Products
  • Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

G2 Grid® for Managed Security Services Providers (MSSPs)

G2 Grid® for Managed Security Services Providers (MSSPs) plotting products by satisfaction and market presence

Highlighted products: ThreatSpike, Antarex, Rhymetec, PlutoSec, Check Point Infinity Global Services, Armour Cybersecurity, Sophos Professional Services, and Akamai Technologies Services.

Underlying data: [Grid® JSON](https://www.g2.com/categories/managed-security-services-mssp/grids.json?focus%5B%5D=threatspike&focus%5B%5D=antarex&focus%5B%5D=rhymetec&focus%5B%5D=plutosec&focus%5B%5D=check-point-infinity-global-services&focus%5B%5D=armour-cybersecurity&focus%5B%5D=sophos-professional-services&focus%5B%5D=akamai-technologies-services)

Paul Reynolds

What is Paul Reynolds Cyber Security Consulting? Paul Reynolds Cyber Security Consulting is a specialist advisory practice delivering deep cyber security capability, governance, risk and compliance (GRC), ISO 27001 implementation and audit, and crisis-ready security leadership to regulated organisations across the UK, Europe, UAE, and USA. The practice operates as a senior, independent resource - providing Principal Architect and Fractional CISO expertise without the overhead of a large consultancy. Clients engage directly with Paul Reynolds, a CISSP-qualified, FBCS Chartered security professional with 25+ years of experience across critical national infrastructure, central government, FinTech, and enterprise. Core capability areas include: ISO 27001 - Full ISMS design, gap analysis, implementation, and audit preparation to certification GRC - Governance, risk, and compliance frameworks built to withstand regulatory and customer scrutiny Cyber Essentials & CE+ - End-to-end consultancy and accredited assessment via IASME Crisis Management & High-Stakes Security Decisions - Due diligence, control exception handling, incident response support, and regulatory audit defence Penetration Testing - CSTM-certified web application and infrastructure testing Cloud Security Architecture - Secure-by-design AWS, Azure, and multi-cloud environments Fractional CISO - Named board-level security leadership on a retained, part-time basis The practice is best suited to regulated SMEs, scale-ups, and programme teams who need senior security capability on demand - particularly where an audit, a contract, a certification, or a crisis has made security suddenly matter.

Average Rating: 5.0/5.0

Total Reviews: 2

Who Is the Company Behind Paul Reynolds?

Who Uses This Product?

  • Company Size: 100% Large

What Are Recent G2 Reviews of Paul Reynolds?

Shadowbear Managed Cybersecurity

Shadowbear Managed Cybersecurity is a modern, outcomes-focused security solution built for growing businesses. Our service is designed to proactively defend your environment while staying affordable and easy to manage, even without an in-house security team. At its core, we combine real-time threat detection, 24/7 monitoring, and employee risk reduction through ongoing cybersecurity training and phishing simulations. We protect your Microsoft 365 or Google Workspace environments, endpoints, networks, and cloud systems with layered tools that are seamlessly integrated and fully managed by our team of experts. We offer essential services such as: - SIEM/XDR Monitoring & Response - Security Awareness Training - Compliance automation management Customers typically ask: Q: Do I need to be technical? A: No. We handle implementation, monitoring, and response. Q: What makes Shadowbear different? A: We focus on value, not bloat. You get best-in-class detection and training with no unnecessary complexity or hardware. Q: Will this help with compliance? A: Yes. We provide services to support SOC2, CMMC, NIST 800-171, ISO 27001, HIPAA, PCI, and more. Support ranges from assessments, to controls implementation and management, tailored to your compliance needs. Q: Is this overkill for a small business? A: Not at all. In fact, we’re purpose-built for small and mid-sized businesses. We scale with you, offering everything from essential monitoring to advanced threat detection and employee training. Q: Can you help with insurance or compliance requirements? A: Yes. We offer services that directly support HIPAA, CMMC, NIST, PCI, and cyber insurance readiness. We can also provide reports and documentation needed for audits. Whether you're preparing for a security audit or just trying to stop phishing attacks, Shadowbear gives you enterprise-level protection—without the enterprise headache. Perfect for small to mid-sized businesses that want peace of mind, not noise. Let our team focus on your security, so yours can focus on growth.

Average Rating: 5.0/5.0

Total Reviews: 2

Who Is the Company Behind Shadowbear Managed Cybersecurity?

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Shadowbear Managed Cybersecurity?

Sirius

Sirius is leading national solutions integrator focused on helping organizations transform their business by managing their operations, optimizing their IT, and securing it all. The Sirius team specializes in IT Strategy (Infrastructure and Operations), Security, Business Innovation (Digital and Data), Cloud, and Managed Services. Sirius solutions are built on proven technologies from top strategic partners, and delivered by the brightest minds in the business.

Average Rating: 4.6/5.0

Total Reviews: 7

Who Is the Company Behind Sirius?

Who Uses This Product?

  • Company Size: 43% Large, 43% Medium

What Are Recent G2 Reviews of Sirius?

What Are G2 Users Discussing About Sirius?

Thales

Thales Cyber Security Products (CSP) delivers Data Security, Application Security, Identity and Access Management (IAM), and Software Monetization. Its solutions protect sensitive data across on–premises, multi-cloud, and hybrid environments through encryption, identity controls, and application and API protection. Thales helps organizations achieve compliance, reduce cyber risk, strengthen data protection, enhance cloud security, and accelerate secure digital transformation at scale.

Average Rating: 4.3/5.0

Total Reviews: 3

Who Is the Company Behind Thales?

  • Seller: Thales Group
  • HQ Location: Austin, Texas
  • Twitter: @ThalesCloudSec
    6,935 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    46 employees on LinkedIn®
  • Ownership: EPA:HO
  • Total Revenue (USD mm): $15,854

Who Uses This Product?

  • Company Size: 67% Medium, 33% Large

What Are Recent G2 Reviews of Thales?

TrustNet

Since 2003, TrustNet has been a leading provider of managed security, consulting, and compliance services. We serve as clients’ strategic partners in helping organizations of all types and sizes secure and maintain the integrity of their businesses. Accelerator+: Advisory, Automation, Audit Our Accelerator+ is designed to provide a comprehensive and cohesive strategy towards compliance. We offer expert guidance to enhance security strategies, conduct thorough audits to ensure compliance and implement automated solutions to improve efficiency. Our team of certified technical experts is committed to delivering top quality compliance and security solutions to our clients. Cybersecurity: 24/7 Monitoring and Alerting Threat Management Network Security Vulnerability Management Log Management Penetration Testing Cybersecurity Risk Assessments Security Awareness
 Training Solutions Incident Response Cloud Security Managed IT Services Compliance: SOC/ SSAE18 SOX PCI QSA HIPAA ISO 27001 FedRamp GDPR LADMF CCPA

Average Rating: 5.0/5.0

Total Reviews: 2

Who Is the Company Behind TrustNet?

  • Seller: TrustNet
  • Year Founded: 2003
  • HQ Location: Atlanta, US
  • LinkedIn® Page: www.linkedin.com
    42 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 50% Medium, 50% Small

What Are Recent G2 Reviews of TrustNet?

XShield

XShield is an all-in-one digital security suite designed to protect your privacy, identity, and devices in minutes. With real-time antivirus and anti-malware protection, secure VPN encryption, anti-ransomware defense, dark web monitoring, and advanced privacy tools, XShield delivers 24/7 automatic protection across multiple devices. Built for performance and ease of use, XShield runs quietly in the background while safeguarding your data, blocking trackers, encrypting connections, and monitoring potential breaches. From desktop to mobile, XShield provides comprehensive cybersecurity protection—so you can browse, work, and connect with confidence.

Average Rating: 4.8/5.0

Total Reviews: 2

Who Is the Company Behind XShield?

Who Uses This Product?

  • Company Size: 100% Medium

What Are Recent G2 Reviews of XShield?

Zazz

Zazz is a trusted software engineering and IT services partner helping enterprises deliver secure, scalable, and high-impact technology initiatives. We specialize in solving complex enterprise challenges - legacy bottlenecks, technical debt, talent shortages, compliance risks, and system fragmentation - so our clients can move faster, scale smarter, and innovate with confidence. Why Enterprise Leaders Choose Zazz: End-to-End Software Engineering: From strategy to deployment, we build custom digital products and platforms aligned with your business goals and technical landscape. Managed IT & Cloud Services: Proactive IT operations, cloud infrastructure management, and 24/7 support to ensure reliability, performance, and continuity at scale. Cybersecurity & Compliance Engineering: Enterprise-grade security architecture, secure-by-design development, and audit-ready solutions built to meet ISO 27001, HIPAA, GDPR, PCI-DSS, and other standards. Strategic IT Staff Augmentation: Deploy high-performing engineering pods, DevOps specialists, cloud architects, or cybersecurity experts—on demand, across any region. Global Delivery with Local Alignment With delivery centers across North America, LATAM, and APAC, we provide timezone-aligned talent and seamless collaboration tailored to your internal processes and culture. Enterprise-Proven Track Record Over 300 successful projects delivered and a 92% client repeat rate—our work speaks through long-term impact, not just code. Our Core Capabilities Include: Custom Software Development Cloud & DevOps Cybersecurity Services Legacy System Modernization IT Managed Services Data & AI Enablement IT Staff Augmentation Let’s bring your next strategic initiative to life - securely, efficiently, and at enterprise scale.

Average Rating: 4.8/5.0

Total Reviews: 2

Who Is the Company Behind Zazz?

  • Seller: Zazz
  • Year Founded: 2009
  • HQ Location: Toronto, CA
  • Twitter: @Zazz_Official
    49 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    188 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 50% Medium, 50% Small

What Are Recent G2 Reviews of Zazz?

Acuative

Acuative provides the world’s leading companies with a complete range of advanced technology and managed services, enabling customers to utilize a single source provider for all of their network requirements. We have extensive relationships with over 100 manufacturers and carriers across the world. We are a Cisco Gold Managed Services partner and have longstanding partnerships with Cradlepoint, Fortinet and Juniper. Acuative has a specific focus and expertise in implementing and managing voice & data networks in a highly secure environment. Acuative simplifies the entire process of managing today’s technology. We leverage a powerful combination of expertise, round-the-clock availability and extensive technical resources to deliver faster efficiency gains, speed to implement and the highest return on investment to our customers.

Average Rating: 4.6/5.0

Total Reviews: 8

Who Is the Company Behind Acuative?

  • Seller: Acuative
  • Year Founded: 1984
  • HQ Location: Fairfield, NJ
  • Twitter: @Acuative
    339 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    547 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 75% Large, 13% Medium

What Do G2 Reviewers Say About Acuative?

AI-generated summary from verified user reviews

Pros
  • Users commend the expertise of Acuative's skilled professionals, who arrive prepared and ready to tackle challenges.
  • Users value the thoroughly professional approach of Acuative, appreciating their personal touch and attentive service.
  • Users value the attention to detail at Acuative, noting their professional yet personal problem-solving approach.
  • Users admire Acuative's innovative solutions, which provide reliable telecommunications for businesses of all sizes.
  • Users value the personalized problem-solving approach of Acuative, feeling genuinely supported in their needs.
Cons
  • Users feel that poor customer support hinders their experience, highlighting a lack of timely communication and acknowledgment.

What Are Recent G2 Reviews of Acuative?

All Covered

All Covered is an award‑winning managed IT and cybersecurity provider that partners with organizations to elevate IT from a cost center into a strategic growth driver. With over 25 years of experience, deep technology partnerships, and a team of more than 500 experts, All Covered offers proactive monitoring, endpoint protection, cloud migrations, compliance consulting, and unified communications with 24×7×365 U.S.-based support. By delivering tailored IT roadmaps covering cybersecurity, Microsoft 365 management, infrastructure modernization, and more, All Covered ensures organizations remain resilient, agile, and focused on innovation. A consultative approach empowers clients to modernize systems and maintain business continuity at affordable prices.

Average Rating: 5.0/5.0

Total Reviews: 1

Who Is the Company Behind All Covered?

What Are Recent G2 Reviews of All Covered?

What Are G2 Users Discussing About All Covered?

BAE Systems

BAE Systems is a global defence, aerospace and security company employing around 88,200 people worldwide. Our wide-ranging products and services cover air, land and naval forces, as well as advanced electronics, security, information technology, and support services.

Average Rating: 1.5/5.0

Total Reviews: 1

Who Is the Company Behind BAE Systems?

  • Seller: BAE Systems
  • Year Founded: 2016
  • HQ Location: Falls Church, US
  • Twitter: @BAES_Careers
    1,914 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    16,720 employees on LinkedIn®
  • Ownership: LON: BA

Who Uses This Product?

  • Company Size: 100% Medium

What Are G2 Users Discussing About BAE Systems?

Clear Infosec

Clear InfoSec is a wholly owned information security subsidiary of Ana-Data Consulting Inc. Founded in 1993, Ana-Data is an Inc. 5000 full-service IT company, a Minority-Owned Business Enterprise (MBE). Clear Infosec's information security services and proprietary tools are certified as reliable and effective by the companies focusing on business cybersecurity. Our services are essentially based on the best practices, provided by the certified professionals and cyber engineers vastly experienced in information security.

Average Rating: 4.5/5.0

Total Reviews: 1

Who Is the Company Behind Clear Infosec?

What Are Recent G2 Reviews of Clear Infosec?

What Are G2 Users Discussing About Clear Infosec?

Communication Square

Communication Square drives your firm to digital horizons. With a digital footprint across the globe, we are trusted to provide cloud users with ready solutions to help manage, migrate, and protect their data. Founded in 2015, Communication Square has succeeding in achieving recognition in its early years. A Microsoft Gold Partner for 5 years, Communication Square prides itself in holding 9 gold and 11 silver competencies. We are based in the United States, Europe, and Southeast Asia. As a Cloud Service Provider we specialize in deploying Microsoft Solutions to enable business productivity, collaboration, and Cloud security.

Average Rating: 5.0/5.0

Total Reviews: 1

Who Is the Company Behind Communication Square?

Who Uses This Product?

  • Company Size: 100% Medium

What Are Recent G2 Reviews of Communication Square?

CompuData

CBIZ, Inc. is a leading professional services advisor to middle market businesses and organizations nationwide. With unmatched industry knowledge and expertise in accounting, tax, advisory, benefits, insurance, and technology, CBIZ delivers forward-thinking insights and actionable solutions to help clients anticipate what's next and discover new ways to accelerate growth. CBIZ has more than 10,000 team members across more than 160 locations in 22 major markets coast to coast.  As a leading Sage partner for over 30 years, CBIZ continues to excel in delivering top-notch Sage Cloud ERP Solutions. We combine our Sage experience with Microsoft Partner Designations in both Azure Infrastructure and Modern Work, creating the most secure, reliable, and easy to use ERP cloud solutions for our customers. CBIZ believes that by optimizing technology, we can help our clients overcome challenges, meet compliance standards, and reach their goals. Our ultimate goal is to enable our clients to focus on what drives their business. Let's work together to take your organization to the next level. Contact us today to learn more about how we can help you achieve your business objectives. For more information, contact CBIZ online at https://www.cbiz.com/ and follow CBIZ on LinkedIn: linkedin.com/company/cbiz

Average Rating: 4.6/5.0

Total Reviews: 33

Who Is the Company Behind CompuData?

  • Seller: CompuData
  • Year Founded: 1971
  • HQ Location: Philadelphia, US
  • Twitter: @CompuDataInc
    610 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    8,564 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 64% Medium, 33% Small

What Are Recent G2 Reviews of CompuData?

What Are G2 Users Discussing About CompuData?

Cyber Secure Online

Cyber Secure Online is at the forefront of providing sophisticated cybersecurity solutions tailored for businesses navigating the complex digital landscape. Founded with a mission to democratize enterprise-level security, we make cutting-edge protection accessible to companies of all sizes, from ambitious startups to established enterprises. Our service suite, headlined by the Always-On Guard plan, offers comprehensive security measures designed to preemptively shield businesses from cyber threats, ensuring operational continuity and safeguarding sensitive data. Leveraging state-of-the-art technology, we provide proactive threat detection, round-the-clock monitoring, and seamless integration with existing business systems, all supported by our team of cybersecurity experts. Understanding the evolving nature of cyber threats, we continuously update our services with the latest security advancements. Our flexible plans, including a competitive starting price of $129 per month for a single entrepreneur license and a 20% saving on annual payments, reflect our commitment to offering top-tier security solutions that are both effective and affordable. Additionally, our referral program epitomizes our belief in community strength, rewarding those who help extend our protective reach. At Cyber Secure Online, we're more than a service provider; we're partners in empowering businesses to thrive securely in the digital age. With our roots firmly in innovation and a relentless pursuit of safety, we invite visitors to explore how our services can redefine their cybersecurity strategy, ensuring a secure and prosperous future.

Average Rating: 5.0/5.0

Total Reviews: 3

Who Is the Company Behind Cyber Secure Online?

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Cyber Secure Online?

Cyna

Cyna enables MSPs to expand their cybersecurity services without increasing operational complexity. We deliver a fully managed 24/7 SOC service designed to integrate seamlessly into existing environments. Rather than replacing your current EDR stack, we strengthen and optimise it. Our analysts continuously monitor your clients’ environments, triage alerts, eliminate false positives, and guide remediation in real time. Cyna helps MSPs to: - Monetise existing EDR deployments by adding a 24/7 SOC layer - Eliminate alert fatigue and reduce internal operational workload - Provide guaranteed continuous monitoring to demanding clients - Strengthen compliance posture and overall cyber maturity - Increase cybersecurity revenue without hiring in-house SOC analysts With Cyna, MSPs enhance client trust while maintaining operational efficiency.

Average Rating: 5.0/5.0

Total Reviews: 1

Who Is the Company Behind Cyna?

  • Seller: Cyna
  • Year Founded: 2022
  • HQ Location: Paris, FR
  • LinkedIn® Page: www.linkedin.com
    47 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Medium

What Are Recent G2 Reviews of Cyna?

Lauren Worth
LW
Researched and written by Lauren Worth
Updated October 3, 2024