Comparisec
Vulnerability ManagementNucleus Security
StrongStrongStrongStrong
4.6

VendorsVulnerability ManagementNucleus Security

Nucleus Security logo

Nucleus Security

Nucleus Security

Founded 2018·US·VC-backed
4.6

Combined score

G2
4.768
Gartner
4.547

Editorial verdict

Nucleus Security addresses a problem that emerges precisely because vulnerability management has become a multi-tool discipline: organisations running Tenable for infrastructure, Snyk for application code, and perhaps Qualys or Rapid7 for specific use cases end up with overlapping, duplicate findings across systems that nobody has time to manually reconcile into a single prioritised action list. Nucleus sits above these tools, aggregating and deduplicating their output into one unified, ranked remediation queue with automated ticket routing and SLA tracking, turning tool sprawl from an operational burden into a manageable, accountable workflow. This is genuinely valuable for mid-market and enterprise organisations that have accumulated multiple scanning tools over time, whether through deliberate best-of-breed strategy or acquisition.

The honest positioning to understand before evaluating is that Nucleus does not scan anything itself. It is an aggregation and prioritisation layer that requires organisations to already be running and paying for underlying scanners, which means the total cost calculation must weigh the aggregation value against this additional expense on top of existing tooling.

The verdict: Nucleus Security is right for mid-market and enterprise organisations running multiple vulnerability scanning tools wanting unified prioritisation across all of them. Organisations running a single scanner without a tool sprawl problem should evaluate whether that scanner's native prioritisation is already sufficient before adding this layer.

Last reviewed: September 2026

G2

4.768 reviews

Gartner

4.547 reviews

PeerSpot

8.335 reviews
Gartner MQ: Not in MQ

Vulnerability Management assessment

PROTECTIONStrong
Asset & exposure coverage
3 / 5
Risk prioritisation
5 / 5
OPERATIONSStrong
Remediation workflows
4 / 5
ANALYTICSStrong
Vuln metrics & KPIs
4 / 5
TRUST & ECOSYSTEMStrong
Scan performance
4 / 5

Strongest: Risk prioritisation

Watch out for: Asset & exposure coverage

Strengths & limitations

Strengths

The most sophisticated cross-tool vulnerability aggregation and deduplication in this comparison, unifying findings from Tenable, Qualys, Snyk, and other scanners into a single prioritised remediation queue
Genuinely reduces the operational burden of running multiple vulnerability scanning tools by eliminating the manual work of reconciling overlapping and duplicate findings across them
Strong remediation workflow with automated ticket routing and SLA tracking that turns prioritised findings into accountable action rather than a static report

Watch out for

Does not perform vulnerability scanning itself, meaning organisations still need to license and operate underlying scanners like Tenable or Qualys alongside Nucleus
Adds an additional layer and cost on top of existing scanning tools rather than replacing them, which requires justifying the aggregation value against the added expense
No Gartner Magic Quadrant presence, since Nucleus occupies a newer vulnerability aggregation and prioritisation category adjacent to traditional VM

Best for

Mid-market and enterprise organisations running multiple vulnerability scanning tools wanting unified prioritisation and remediation workflow across all of them rather than reconciling overlapping reports manually.

Not suitable for: Organisations running only a single vulnerability scanner without the tool sprawl problem Nucleus is designed to solve, or those without budget for an additional layer on top of existing scanning tools.

Compliance coverage

SOC 2
HIPAA
NIST CSF
PCI-DSS
Essential Eight
AU Privacy Act
CMMC
GDPR
NIS2
DORA
ISO 27001
CIS Benchmarks

Switching intelligence

Switching from

Common migration paths based on review data

  • Manual spreadsheet reconciliation of multiple scanner outputs

Also considering

Vendors typically shortlisted alongside

  • Not applicable, complementary aggregation layer
← Back to Vulnerability ManagementCompare with other Vulnerability Management vendors ➲

Quick facts

Pricing modelPer asset, annual
Pricing rangeQuote-based, mid-market to enterprise
Free trialYes - 14 days
Min seatsNo minimum
Deployment time1-2 weeks
Complexity2 / 5
Pricing transparency2 / 5
AU presenceNo
IRAP assessedNo
Open sourceProprietary

Deployment

ModelsSaaS
OS support
CloudAWS, Azure, GCP
SupportEmail, Dedicated CSM
Data residencyUS

Company

Nucleus Security

Founded 2018 · 50-200 employees · VC-backed

HQ: US

Not publicly disclosed

Certifications

SOC 2 Type II

Integrations

TenableQualysRapid7SnykJiraServiceNow