What infrastructure monitoring works best for small businesses?

PRTG for on-premises with auto-discovery (free for 100 sensors). Site24x7 for cloud-managed monitoring (from $9/month). Checkmk Raw for self-hosted with the broadest free feature set. Choose based on whether you want cloud-managed or self-hosted.

How much infrastructure monitoring does a small business need?

At minimum: uptime monitoring for critical services, disk space alerts, CPU/memory thresholds on servers, and WAN link health. 5-10 metrics per device is sufficient. Don't replicate enterprise monitoring complexity at small business scale.

Can small businesses use Datadog or New Relic?

Datadog and New Relic have free tiers but their value is in application-level observability, overkill for small businesses monitoring basic infrastructure. PRTG or Site24x7 provide better infrastructure focus at lower complexity.

Best infrastructure monitoring tools tools for small business in 2026

Small businesses monitoring a mix of servers, switches, and cloud services need a single-pane tool that auto-discovers infrastructure without requiring monitoring engineering. PRTG is the easiest on-premises option. Site24x7 provides cloud-managed monitoring. For teams comfortable with self-hosting, Checkmk Raw offers the broadest free option.

Use this page alongside the full Infrastructure Monitoring Tools category hub for deeper evaluation criteria, or browse the software directory to search across all tools. For methodology context, read how we review software and how rankings work. Our IT calculators can help build a business case before vendor conversations begin.

3 best for small business highlighted below, plus 12 more in this category.

Infrastructure Monitoring Tools tools compared

Every tool on this page, with the price each vendor actually publishes, its deployment model and its own authored best-fit line. The chips filter these rows and state how many each one holds.

15 infrastructure monitoring tools tools compared on published price, deployment, best fit and main tradeoff.
Tool	Published price	Deployment	Free trial	Best for	Main tradeoff	Vendor link
PRTG	€1,799 a year for 500 sensors, from ITCommons' March 17, 2026 check; not re-verified since	Cloud / On-prem	Yes	Internal IT teams and network engineers managing heterogeneous on-premises infrastructure, mixed device vendors, Windows and Linux servers, industrial or IoT components, and cloud services…	Sensor count planning adds persistent administrative overhead	Visit Website
Grafana Cloud	quote only	Cloud	Yes	DevOps and platform engineering teams that want Prometheus-based infrastructure monitoring with world-class visualization without operating their own Prometheus, Loki, and Tempo clusters	The platform is powerful but requires more configuration than turnkey solutions like Datadog	Visit Website
Site24x7	$9 a month for 10 basic monitors billed annually, from ITCommons' March 17, 2026 check; not re-verified since	Cloud	Yes	Mid-market teams consolidating several monitoring tools into one subscription, alerting through chat and paging integrations	Not stated	Visit Website
Checkmk	Free on Community; paid self-hosted from €190 per month, billed annually	Cloud / On-prem	Yes	Mid-market and enterprise teams with Linux capability and a mixed estate	Not stated	Visit Website
Datadog Infrastructure	$15 per host per month on Pro billed annually, or $18 on-demand, verified October 16, 2026	Cloud	Yes	Cloud-native and container estates that will use the cross-signal correlation they are paying for	Not stated	Visit Website
Dynatrace	$7 per month per host for Foundation & Discovery, verified October 16, 2026	Cloud	Yes	Large estates needing application-level depth, with an owner for the consumption model	Not stated	Get Pricing Details
Elastic Observability	quote only	Cloud / On-prem	Yes	Engineering and operations teams already running the Elastic Stack for search, log analytics, or SIEM that want to add infrastructure monitoring and APM without introducing a new vendor or…	Operating a production Elasticsearch cluster is non-trivial, cluster sizing, shard management, and index lifecycle policies require real expertise	Visit Website
LogicMonitor	$16 per Hybrid Unit per month on Essentials, up to 999 Hybrid Units	Cloud	No	Mid-market and enterprise teams running hundreds of resources across data centre and cloud	Not stated	Get Pricing Details
ManageEngine OpManager	About $245 for 10 devices on Standard, from ITCommons' March 17, 2026 check; not re-verified since	Cloud / On-prem	Yes	Mid-market on-premises estates of traditional infrastructure that want a price before a sales call	Not stated	Get Pricing Details
Nagios XI	$1,995 perpetual for 50 nodes on Standard, or $495 a year as a subscription, from ITCommons' March 17, 2026 check; not re-verified	On-prem	Yes	On-premises estates with unusual monitoring targets, in-house Linux skill and a long planning horizon	Not stated	Get Pricing Details
New Relic	quote only	Cloud	Yes	Not stated	Not stated	Visit Website
SolarWinds NPM	Around $1,638 a year for small environments, from ITCommons' March 17, 2026 check; not re-verified, and no element count is attached to it	On-prem	No	Large on-premises multi-vendor networks with Windows and SQL Server administration capacity in-house	Not stated	Get Pricing Details
Splunk Observability Cloud	quote only	Cloud	Yes	Enterprise SRE and platform engineering teams running large-scale, high-cardinality infrastructure, thousands of hosts, containers, and microservices, where real-time streaming analytics…	Enterprise pricing that starts high and scales unpredictably with custom metrics and host count	Get Pricing Details
VMware Aria Operations	quote only	Cloud / On-prem	No	Existing VMware platform customers confirming entitlements, rather than new buyers shortlisting from public pages	Not stated	Get Pricing Details
Zabbix	Software EUR 0; support from EUR 245 / USD 325 per month billed annually on Silver	Cloud / On-prem	Yes	Teams with Linux operations capability that want monitoring cost flat as the estate grows	Not stated	Visit Website

Showing 15 of 15. Published price means the vendor states a figure on its own pricing page; quote only means it states none. Best for is each tool's own authored best-fit line, and reads "Not stated" where no such line exists rather than repeating the deployment column.

Best for small business

PRTG

Sensor-based · Cloud / On-prem · Free trial

PRTG is an on-premises infrastructure monitoring platform where everything is a sensor, network interfaces, server metrics, cloud services, IoT devices, giving teams granular control over what they monitor and what they pay for, with published pricing and a permanent free tier of 100 sensors.

Best for: Internal IT teams and network engineers managing heterogeneous on-premises infrastructure, mixed device vendors, Windows and Linux servers, industrial or IoT components, and cloud services, where sens

View profileContact vendor for exact pricing and packaging details.

Grafana Cloud

Usage-based pricing · Cloud · Free trial

Grafana Cloud is the managed observability platform built on Prometheus, Loki, and Tempo that gives teams enterprise-grade infrastructure monitoring with the visualization depth Grafana is known for, eliminating the operational burden of self-hosting while preserving open-standards portability that proprietary platforms cannot match.

Best for: DevOps and platform engineering teams that want Prometheus-based infrastructure monitoring with world-class visualization without operating their own Prometheus, Loki, and Tempo clusters. Particularly

View profileContact vendor for exact pricing and packaging details.

Site24x7

Host-based · Cloud · Free trial

Site24x7 is positioned here as a server monitoring software option for teams comparing rollout fit, operating model, pricing structure, and how much administrative effort the product is likely to create after implementation.

View profileContact vendor for exact pricing and packaging details.

Other infrastructure monitoring tools tools

These tools are part of the infrastructure monitoring tools category but may not match the for small business filter above. Worth reviewing if the primary options don't fit.

Checkmk

Host-based · Cloud / On-prem · Free trial

Checkmk is positioned here as a server monitoring software option for teams comparing rollout fit, operating model, pricing structure, and how much administrative effort the product is likely to create after implementation.

View profileContact vendor for exact pricing and packaging details.

Datadog Infrastructure

Host-based · Cloud · Free trial

Datadog Infrastructure is positioned here as a server monitoring software option for teams comparing rollout fit, operating model, pricing structure, and how much administrative effort the product is likely to create after implementation.

View profileContact vendor for exact pricing and packaging details.

Dynatrace

Custom quote · Cloud · Free trial

Dynatrace is positioned here as a server monitoring software option for teams comparing rollout fit, operating model, pricing structure, and how much administrative effort the product is likely to create after implementation.

View profileContact vendor for exact pricing and packaging details.

Elastic Observability

Usage-based pricing · Cloud / On-prem · Free trial

Elastic Observability extends the Elastic Stack (Elasticsearch, Kibana, Beats) into infrastructure monitoring with APM and log correlation, strongest for organizations already running Elasticsearch for search or SIEM that want to consolidate observability onto the same data platform without adding another vendor.

View profileContact vendor for exact pricing and packaging details.

LogicMonitor

Custom quote · Cloud

LogicMonitor is positioned here as a server monitoring software option for teams comparing rollout fit, operating model, pricing structure, and how much administrative effort the product is likely to create after implementation.

View profileContact vendor for exact pricing and packaging details.

ManageEngine OpManager

Custom quote · Cloud / On-prem · Free trial

ManageEngine OpManager is positioned here as a server monitoring software option for teams comparing rollout fit, operating model, pricing structure, and how much administrative effort the product is likely to create after implementation.

View profileContact vendor for exact pricing and packaging details.

Nagios XI

Custom quote · On-prem · Free trial

Nagios XI is positioned here as a server monitoring software option for teams comparing rollout fit, operating model, pricing structure, and how much administrative effort the product is likely to create after implementation.

View profileContact vendor for exact pricing and packaging details.

New Relic

Usage-based pricing · Cloud · Free trial

New Relic is positioned here as a server monitoring software option for teams comparing rollout fit, operating model, pricing structure, and how much administrative effort the product is likely to create after implementation.

View profileContact vendor for exact pricing and packaging details.

SolarWinds NPM

Custom quote · On-prem

SolarWinds NPM is positioned here as a server monitoring software option for teams comparing rollout fit, operating model, pricing structure, and how much administrative effort the product is likely to create after implementation.

View profileContact vendor for exact pricing and packaging details.

Splunk Observability Cloud

Custom quote · Cloud · Free trial

Splunk Observability Cloud (now part of Cisco) provides real-time streaming infrastructure monitoring with sub-second analytics resolution, purpose-built for high-cardinality environments where traditional 1-minute polling intervals miss the performance anomalies that cause outages.

View profileContact vendor for exact pricing and packaging details.

VMware Aria Operations

Custom quote · Cloud / On-prem

VMware Aria Operations is positioned here as a server monitoring software option for teams comparing rollout fit, operating model, pricing structure, and how much administrative effort the product is likely to create after implementation.

View profileContact vendor for exact pricing and packaging details.

Zabbix

Open source · Cloud / On-prem · Free trial

Zabbix is positioned here as a server monitoring software option for teams comparing rollout fit, operating model, pricing structure, and how much administrative effort the product is likely to create after implementation.

View profileContact vendor for exact pricing and packaging details.

For Small Business FAQ for infrastructure monitoring tools

What infrastructure monitoring works best for small businesses?: PRTG for on-premises with auto-discovery (free for 100 sensors). Site24x7 for cloud-managed monitoring (from $9/month). Checkmk Raw for self-hosted with the broadest free feature set. Choose based on whether you want cloud-managed or self-hosted.
How much infrastructure monitoring does a small business need?: At minimum: uptime monitoring for critical services, disk space alerts, CPU/memory thresholds on servers, and WAN link health. 5-10 metrics per device is sufficient. Don't replicate enterprise monitoring complexity at small business scale.
Can small businesses use Datadog or New Relic?: Datadog and New Relic have free tiers but their value is in application-level observability, overkill for small businesses monitoring basic infrastructure. PRTG or Site24x7 provide better infrastructure focus at lower complexity.

Next steps for infrastructure monitoring tools

Return to the Infrastructure Monitoring Tools category hub for the full evaluation framework, including buying criteria, pricing context, and deployment guidance across every tool in this space. You can also explore free tools and open source options within this category. Once the shortlist narrows to two or three finalists, open a head-to-head comparison to see exactly where the remaining candidates differ on pricing, workflow depth, and deployment fit.