Suggestions appear as you type. Use the up and down arrows to choose one and Enter to open it.

This page's audience our own tag's counts — open to see them
–Visits
–Page views
–Clicks to vendors
–Time on page
–Reading now
Clicks to vendors, by tool
  • –
Top countries
  • –
Devices
  • –

– · visits, page views and clicks counted by our own tag, which counts more than our checked analytics; every figure rounded down · how we count

Best Nucleus Security Alternatives in 2026

#20 of 32 in Vulnerability Management SoftwareExposure Management Software

The top Nucleus Security alternatives are Rapid7 InsightVM, ManageEngine Vulnerability Manager Plus and Qualys Vulnerability Management: 15 vulnerability management software our editors would look at instead of Nucleus Security, in our ranking order.

7.2/10Editor score
Try Nucleus Security
Nucleus Security7.2 Try Nucleus Security

Nucleus Security: Consolidates security findings and adds context to risk prioritization and remediation. Where it falls short: pricing is available through contact with sales..

Switching from Nucleus Security? For most vulnerability management software buyers the best Nucleus Security alternative is Rapid7 InsightVM, built for organizations needing comprehensive hybrid scanning. ManageEngine Vulnerability Manager Plus has a free plan, which Nucleus Security does not.

Why People Look for a Nucleus Security Alternative

  • Pricing is available through contact with sales
  • Its focus on exposure-data consolidation may not suit teams seeking only a scanner
  • Application-security visibility depends on findings from multiple source types
  • No free plan — 2 of the alternatives below have it

Quick Picks by What You Need

All 15 Nucleus Security Alternatives, Ranked

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

  1. Rapid7 InsightVM

    Best forOrganizations needing comprehensive hybrid scanning

    • Better than Nucleus Security:
    • Editor score 9.3 vs 7.2

    Hybrid vulnerability scanning with risk prioritization and remediation tracking.

    • Web application scanning
    • Agent-based assessment
    • Authenticated scanning
    Our Rapid7 InsightVM verdict → Visit Rapid7
    9.3/10★★★★★
    Visit Rapid7
  2. ManageEngine Vulnerability Manager Plus

    Best forBudget-conscious endpoint programs

    • Better than Nucleus Security:
    • Free plan
    • Editor score 9.2 vs 7.2

    A broad endpoint and network vulnerability program with a free entry tier.

    • Agent-based assessment
    • Authenticated scanning
    • Remediation tracking
    Free plan · 30-day trial Our ManageEngine Vulnerability Manager Plus verdict → Visit ManageEngine
    9.2/10★★★★★
    Visit ManageEngine
  3. Qualys Vulnerability Management

    Best forLarge enterprises needing cloud vulnerability management

    • Better than Nucleus Security:
    • Editor score 9.1 vs 7.2

    Continuous assessment and risk-based prioritization, with a high published entry price.

    • Web application scanning
    • Agent-based assessment
    • Authenticated scanning
    7-day trial Our Qualys Vulnerability Management verdict → Visit Qualys
    9.1/10★★★★★
    Visit Qualys
  4. Tenable Security Center

    Best forOn-premises enterprises using Nessus tooling

    • Better than Nucleus Security:
    • Editor score 9.0 vs 7.2

    A mature on-premises platform for enterprises managing Nessus-based vulnerability programs.

    • Web application scanning
    • Agent-based assessment
    • Authenticated scanning
    Pricing on request Our Tenable Security Center verdict → Contact Tenable
    9.0/10★★★★☆
    Contact Tenable
  5. Ivanti Neurons for Risk-Based Vulnerability Management

    Best forTeams already using Ivanti workflows

    • Better than Nucleus Security:
    • Editor score 8.9 vs 7.2

    Centralizes vulnerability findings and prioritizes remediation through Ivanti workflows.

    • Web application scanning
    • Agent-based assessment
    • Remediation tracking
    Pricing on request Our Ivanti Neurons for Risk-Based Vulnerability Management verdict → Visit Ivanti
    8.9/10★★★★☆
    Visit Ivanti
  6. ServiceNow Vulnerability Response

    Best forServiceNow-centric vulnerability programs

    • Better than Nucleus Security:
    • Editor score 8.8 vs 7.2

    A ServiceNow-centered workflow for importing, prioritizing, assigning, and tracking vulnerabilities.

    • Web application scanning
    • Remediation tracking
    Pricing on request Our ServiceNow Vulnerability Response verdict → Visit ServiceNow
    8.8/10★★★★☆
    Visit ServiceNow
  7. Zscaler Unified Vulnerability Management

    Best forOrganizations needing connector-led VM orchestration

    • Better than Nucleus Security:
    • Editor score 8.7 vs 7.2

    A cloud VM orchestration layer for prioritizing and routing findings from existing sources.

    • Remediation tracking
    Pricing on request Our Zscaler Unified Vulnerability Management verdict → Contact Zscaler
    8.7/10★★★★☆
    Contact Zscaler
  8. Tenable One Vulnerability Management

    Best forCloud-first teams wanting Tenable VM coverage

    • Better than Nucleus Security:
    • Editor score 8.6 vs 7.2

    Continuous asset assessment and risk prioritization, priced by asset quantity.

    • Agent-based assessment
    • Authenticated scanning
    • Remediation tracking
    Our Tenable One Vulnerability Management verdict → Visit Tenable
    8.6/10★★★★☆
    Visit Tenable
  9. Microsoft Defender for Business

    Best forSmall businesses seeking endpoint security

    • Better than Nucleus Security:
    • Editor score 8.5 vs 7.2

    A broad endpoint security suite with vulnerability management, priced per user annually.

    30-day trial Our Microsoft Defender for Business verdict → Visit Microsoft
    8.5/10★★★★☆
    Visit Microsoft
  10. Nanitor

    Best forBudget-conscious teams managing assets and vulnerabilities

    • Better than Nucleus Security:
    • Free plan
    • Editor score 8.2 vs 7.2

    Nanitor combines asset discovery, vulnerability detection and remediation tracking, with a free tier.

    • Agent-based assessment
    • Authenticated scanning
    • Remediation tracking
    Free plan Our Nanitor verdict → Visit Nanitor
    8.2/10★★★★☆
    Visit Nanitor
  11. Vicarius vRx

    Best forTeams prioritizing automated remediation

    • Better than Nucleus Security:
    • Editor score 8.1 vs 7.2

    Pairs risk-based vulnerability prioritization with automated and patchless remediation.

    • Agent-based assessment
    • Remediation tracking
    Pricing on request Our Vicarius vRx verdict → Visit Vicarius
    8.1/10★★★★☆
    Visit Vicarius
  12. Tanium Comply

    Best forEndpoint and compliance teams on Tanium

    • Better than Nucleus Security:
    • Editor score 8.0 vs 7.2

    Endpoint-focused vulnerability and compliance assessments with remediation workflows in Tanium.

    • Agent-based assessment
    • Authenticated scanning
    • Remediation tracking
    Pricing on request Our Tanium Comply verdict → Visit Tanium
    8.0/10★★★★☆
    Visit Tanium
  13. Cyberwatch Vulnerability Manager

    Best forTeams needing flexible and disconnected scanning

    • Better than Nucleus Security:
    • Editor score 7.9 vs 7.2

    Flexible scanning and remediation tracking for complex, mixed infrastructure.

    • Web application scanning
    • Agent-based assessment
    • Remediation tracking
    Pricing on request Our Cyberwatch Vulnerability Manager verdict → Visit Cyberwatch
    7.9/10★★★★☆
    Visit Cyberwatch
  14. Holm Security Vulnerability Management

    Best forCloud-heavy teams needing hybrid vulnerability management

    • Better than Nucleus Security:
    • Editor score 7.8 vs 7.2

    Hybrid scanning and AI prioritization suit teams managing vulnerabilities across cloud and on-premises assets.

    • Web application scanning
    • Agent-based assessment
    • Authenticated scanning
    Pricing on request Our Holm Security Vulnerability Management verdict → Visit Holm Security
    7.8/10★★★★☆
    Visit Holm Security
  15. Edgescan

    Best forApplication and API security teams

    • Better than Nucleus Security:
    • Editor score 7.7 vs 7.2

    Combines application and API testing with network coverage and human validation.

    • Web application scanning
    • Authenticated scanning
    • Remediation tracking
    Pricing on request Our Edgescan verdict → Visit Edgescan
    7.7/10★★★★☆
    Visit Edgescan

Nucleus Security Alternatives: Common Questions

What is the best alternative to Nucleus Security?

Rapid7 InsightVM: #1 in our Vulnerability Management Software ranking, with an editor score of 9.3 out of 10. Hybrid vulnerability scanning with risk prioritization and remediation tracking.

Is there a free alternative to Nucleus Security?

Yes. ManageEngine Vulnerability Manager Plus and Nanitor have a free plan or a free tier.

What is the cheapest paid alternative to Nucleus Security?

Of the alternatives here that publish a price, Rapid7 InsightVM starts lowest, at $1.62/mo.

Why do people look for Nucleus Security alternatives?

Pricing is available through contact with sales; Its focus on exposure-data consolidation may not suit teams seeking only a scanner; Application-security visibility depends on findings from multiple source types.

How do I switch from Nucleus Security?

Export your data from Nucleus Security (most tools have an export in their settings). Sign up for the alternative; start on its free plan or trial if it has one. Import your export and set up the integrations your team relies on. Run both side by side for a short while, then cancel Nucleus Security.

How to Switch from Nucleus Security

  1. Export your data from Nucleus Security (most tools have an export in their settings).
  2. Sign up for the alternative; start on its free plan or trial if it has one.
  3. Import your export and set up the integrations your team relies on.
  4. Run both side by side for a short while, then cancel Nucleus Security.

Nucleus Security vs Each Alternative

#ToolFree planPaid fromDeployment modelAuthenticated scanningAgent-based assessmentRemediation trackingRisk prioritizationScore
20Nucleus SecurityNoHybridYesAdvanced7.2
1Rapid7 InsightVM$1.62/moHybridYesYesYesAdvanced9.3
2ManageEngine Vulnerability Manager PlusYes$695/unit/yrHybridYesYesYesAdvanced9.2
3Qualys Vulnerability ManagementCloudYesYesYesAdvanced9.1
4Tenable Security CenterNoOn-premisesYesYesYesAdvanced9.0
5Ivanti Neurons for Risk-Based Vulnerability ManagementCloudYesYesAdvanced8.9
6ServiceNow Vulnerability ResponseCloudYesStandard8.8
7Zscaler Unified Vulnerability ManagementCloudYesAdvanced8.7
8Tenable One Vulnerability ManagementNo$3,500/unit usage-basedCloudYesYesYesAdvanced8.6
9Microsoft Defender for BusinessNo$3/user/mo8.5
10NanitorYes$6/unit/moHybridYesYesYesAdvanced8.2
11Vicarius vRxNoHybridYesYesAdvanced8.1
12Tanium ComplyHybridYesYesYesStandard8.0
13Cyberwatch Vulnerability ManagerHybridYesYesAdvanced7.9
14Holm Security Vulnerability ManagementNoHybridYesYesYesAdvanced7.8
15EdgescanHybridYesNoYesAdvanced7.7

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update