Best Software for 2025 is now live!
|| products.size

Best Managed Security Services Providers (MSSPs)

Lauren Worth
LW
Researched and written by Lauren Worth

Managed security service providers (MSSPs) make up a branch of IT outsourcing that performs a variety of IT security-related tasks and reduces internal staffing needs within client organizations. Managed security services (MSSs) can include any number of cybersecurity services, based on an individual provider’s capabilities and the specific requests of each client. MSSPs often help monitor IT compliance and general network security around the clock, deploying necessary updates and responding to incidents when necessary. Businesses can alleviate the pressure placed on in-house IT departments with partial or comprehensive MSS from a qualified provider.

Businesses can work with cybersecurity consultants to determine the extent of security needs and whether key functions would benefit from an MSSP. Businesses should deploy some amount of IT security software internally to supplement any managed services in order to maximize protection across all company data and devices.

G2 takes pride in showing unbiased reviews on client satisfaction in our ratings and reports. We do not allow paid placements in any of our ratings, rankings, or reports. Learn about our scoring methodologies.

No filters applied
275 Listings in Managed Security Services (MSSP) Available

Service Provider

(45)4.0 out of 5
Save to My Lists
Provider Description
Information
This description is provided by the seller.

Armed with the latest tools, strategies, and knowledge to address your global security needs, our comprehensive services include everything from incident response and security risk assessments to comp

Industries Serviced
  • Education Management
Provider Works With
  • 38% Small-Business
  • 33% Mid-Market
  • 29% Enterprise
Services OfferedInformation
No information available

Service Provider

(23)4.8 out of 5
Save to My Lists
Provider Description
Information
This description is provided by the seller.

Cyvatar is an automated cybersecurity management platform that enables startups and small businesses to effectively deploy and maintain data security while building trust, gaining transparency, and ac

Industries Serviced
  • Financial Services
Provider Works With
  • 74% Small-Business
  • 22% Mid-Market
  • 4% Enterprise
Services OfferedInformation
No information available

This is how G2 Deals can help you:

  • Easily shop for curated – and trusted – software
  • Own your own software buying journey
  • Discover exclusive deals on software

Service Provider

(24)4.9 out of 5
Save to My Lists
Provider Description
Information
This description is provided by the seller.

ThreatSpike Red is the first managed service for offensive security which provides unlimited testing at an affordable, fixed price. Instead of one off, point in time tests, ThreatSpike Red provides co

Industries Serviced
No information available
Provider Works With
  • 42% Mid-Market
  • 25% Enterprise
  • 21% Small-Business
Services OfferedInformation
No information available

Service Provider

(24)4.8 out of 5
Save to My Lists
Provider Description
Information
This description is provided by the seller.

To combat increasingly sophisticated cybersecurity threats, you need an equally sophisticated network-based approach. Nomic's managed NDR thwarts stealthy intrusion and exploit attempts, and shines a

Industries Serviced
  • Government Administration
  • Information Technology and Services
Provider Works With
  • 63% Mid-Market
  • 25% Enterprise
  • 13% Small-Business
Services OfferedInformation
  • Managed NDR
  • incident response
  • network cloaking

Service Provider

(18)4.6 out of 5
Save to My Lists
Provider Description
Information
This description is provided by the seller.

Netsurion® is a managed open XDR solution that delivers greater attack surface coverage, guided threat remediation, and compliance management support. Our 24x7 SOC operates as your trusted cybersecuri

Industries Serviced
No information available
Provider Works With
  • 78% Mid-Market
  • 22% Enterprise
Services OfferedInformation
No information available

Service Provider

(24)4.1 out of 5
Save to My Lists
Provider Description
Information
This description is provided by the seller.

OpenText Corporation, an enterprise information management, helps organizations manage and gain value from business content.

Industries Serviced
No information available
Provider Works With
  • 54% Mid-Market
  • 33% Small-Business
  • 8% Enterprise
Services OfferedInformation
No information available
Provider Description
Information
This description is provided by the seller.

MrPentester's VAPT services cover security testing and management for Web, Apps, Thick Clients, APIs, Network, Infrastructure, Cyber Intelligence, and More. Standard procedure and revamped methodology

Industries Serviced
No information available
Provider Works With
  • 38% Small-Business
  • 38% Mid-Market
  • 23% Enterprise
Services OfferedInformation
No information available

Service Provider

(24)4.6 out of 5
Save to My Lists
Provider Description
Information
This description is provided by the seller.

Check Point Software Technologies Ltd. is the largest network cyber security vendor globally, providing industry-leading solutions and protecting customers from cyberattacks with an unmatched catch ra

Industries Serviced
No information available
Provider Works With
  • 67% Enterprise
  • 17% Small-Business
  • 17% Mid-Market
Services OfferedInformation
No information available

Service Provider

(34)4.7 out of 5
Save to My Lists
Provider Description
Information
This description is provided by the seller.

Cybriant delivers a comprehensive and customizable set of managed cybersecurity services, Cybriant's team of highly-trained, professional, security analysts provide 24/7 continuous threat detection

Entry Level Price:Contact Us
Industries Serviced
  • Financial Services
Provider Works With
  • 47% Mid-Market
  • 32% Small-Business
  • 21% Enterprise
Services OfferedInformation
No information available

Service Provider

(17)4.5 out of 5
Save to My Lists
Provider Description
Information
This description is provided by the seller.

Sophos Professional Services helps ensure that your Sophos products are deployed per our best practices, getting our customers started off on the right foot. We offer Guided Onboarding services, trai

Industries Serviced
No information available
Provider Works With
  • 53% Mid-Market
  • 24% Small-Business
  • 18% Enterprise
Services OfferedInformation
  • Endpoint/MDR Deployment
  • Firewall Deployment
  • Email Deployment

Service Provider

(10)5.0 out of 5
Save to My Lists
Provider Description
Information
This description is provided by the seller.

Since 2011, CloudAccess, Inc. (DBA XeneX) has been delivering cybersecurity Security Operations Center as a Service with the most advanced technology platform and mature delivery framework, addressing

Industries Serviced
No information available
Provider Works With
  • 50% Small-Business
  • 40% Mid-Market
Services OfferedInformation
  • XDR
  • Cyber Insurance
  • Patch Managment

Service Provider

(12)4.4 out of 5
Save to My Lists
Provider Description
Information
This description is provided by the seller.

Work with our strategic and technical advisors to align security, compliance, and threat management with your business goals.

Industries Serviced
No information available
Provider Works With
  • 58% Enterprise
  • 42% Mid-Market
  • 8% Small-Business
Services OfferedInformation
No information available

Service Provider

(7)5.0 out of 5
Save to My Lists
Provider Description
Information
This description is provided by the seller.

Nfina is an IT infrastructure platform provider supplying cyber resilience for business continuity. Our solutions and data protection services include: edge, computer servers, HCI appliances, hybrid c

Industries Serviced
No information available
Provider Works With
  • 57% Small-Business
  • 43% Mid-Market
Services OfferedInformation
No information available

Service Provider

(26)4.6 out of 5
Save to My Lists
Provider Description
Information
This description is provided by the seller.

OneNeck’s US-based experts deliver a diverse portfolio of hybrid IT solutions that include: - Multi-cloud: Public, hosted private, on-prem and hybrid cloud - Infrastructure: Network, systems and sto

  • Overview
    Expand/Collapse Overview
  • Industries Serviced
    • Hospital & Health Care
    Provider Works With
    • 62% Mid-Market
    • 23% Enterprise
    • 15% Small-Business
    Services OfferedInformation
    No information available
  • Pros and Cons
    Expand/Collapse Pros and Cons
  • OneNeck IT Solutions Pros and Cons
    How are these determined?Information
    Pros and Cons are compiled from review feedback and grouped into themes to provide an easy-to-understand summary of user reviews.
    Pros
    Expertise
    2
    Helpful
    1
    Proactivity
    1
    Team Quality
    1
    Technical Expertise
    1
    Cons
    Poor Customer Support
    1
Industries Serviced
  • Hospital & Health Care
Provider Works With
  • 62% Mid-Market
  • 23% Enterprise
  • 15% Small-Business
Services OfferedInformation
No information available
OneNeck IT Solutions Pros and Cons
How are these determined?Information
Pros and Cons are compiled from review feedback and grouped into themes to provide an easy-to-understand summary of user reviews.
Pros
Expertise
2
Helpful
1
Proactivity
1
Team Quality
1
Technical Expertise
1
Cons
Poor Customer Support
1

Service Provider

(6)4.8 out of 5
Save to My Lists
Provider Description
Information
This description is provided by the seller.

Barracuda Managed XDR is a unified incident detection and response platform and an award-winning Security Operations Center (SOC). The XDR platform analyzes billions of raw events daily from 40+ integ

Industries Serviced
No information available
Provider Works With
  • 83% Small-Business
  • 17% Mid-Market
Services OfferedInformation
No information available