Vendors.
Browse open-source and commercial software for managed service providers, compare features, and discover cost-saving alternatives.
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Showing 49-60 of 213 vendors• Open source vendors listed first
Security Onion
Security Information and Event Mgmt. (SIEM)
Free and open Linux distribution for threat hunting, enterprise security monitoring, and log management
79
184M
Open Source
ZeroTier
Zero Trust Network Access (ZTNA)
Software-defined networking creating secure virtual networks spanning IoT, SD-WAN, and VPN use cases globally.
72
178M
Open Source
SuiteCRM
Professional Services Automation
Open-source customer relationship management (CRM) platform with enterprise-class features for sales, marketing, and customer service
47
177M
Open Source
OpenNMS
Network Management and Monitoring
OpenNMS review for MSPs: open-source network monitoring at enterprise scale. Compare real pricing, multi-tenant support, and deployment trade-offs.
50
148M
Open Source
Zitadel
Identity and Access Management (IAM)
Cloud-native open-source identity and access management with built-in multi-tenancy, passwordless auth, and OIDC support. Compare Zitadel for MSPs.
53
141M
Open Source
OpenVPN
Zero Trust Network Access (ZTNA)
Open source and commercial VPN solution providing secure point-to-point and site-to-site connections with Access Server for enterprise management
94
140M
Open Source
ClamAV
Endpoint Security (Antivirus/EPP)
Open-source antivirus engine for scanning trojans, viruses, and malware across mail gateways and file systems. Compare ClamAV for MSP endpoint protection.
57
126M
Open Source
Rspamd
Secure Email Gateway
High-performance open-source spam filtering with Bayesian learning, fuzzy hashing, and neural network support. Compare Rspamd with other email security tools.
52
123M
Open Source
StrongSwan
Zero Trust Network Access (ZTNA)
StrongSwan is an open-source IPsec-based VPN solution for secure site-to-site and remote access connections.
46
120M
Open Source
Lynis
Endpoint Security (Antivirus/EPP)
Open source security auditing tool for Unix/Linux systems that performs comprehensive security scans and compliance testing
34
116M
Open Source
Chocolatey
Patch Management
Machine-level package manager for Windows that automates software installation, configuration, and management.
86
106M
Open Source
Smallstep
Identity and Access Management (IAM)
Open-source private certificate authority (step-ca) for X.509 and SSH with ACME automation, mTLS, and short-lived certs for zero-trust device identity.
40
102M
Open Source