SIDE BY SIDE · FACTS ONLY

Censys vs Sevco: asset inventory facts side by side

SHORT ANSWER

Censys describes 2 of the five approaches on the pages we read and Sevco describes 2; they differ on CAASM aggregation, External attack surface management and Exposure management. On collection, Censys works without new agents and Sevco works without new agents. Many estates run two of these approaches together, so the question is often which pair, not which one; we do not score either.

By The Inventory Desk · CAASM Finder · Published 2026-10-11

Desk research from public vendor pages read on 27 September, 11 October and 15 October 2026. Profiles follow our published method; we did not run the products.

How do their approaches compare?

Top bar: Censys ASM
Lower bar, lighter: Sevco Security

Full bar: described on the vendor's pages we read
Hatched bar: described with a condition (another product, a higher tier, or part of the approach)
Stub: not in our sources (it may exist; we did not find it)

The bars show what each vendor's own pages describe, or how your answers weigh the five approaches. They are not a measure of how well a product works.

What are the facts, side by side?

From each vendor's own pages. Differs marks rows where the recorded status or check value differs.
Fact	Censys ASM	Sevco Security
Positioning	Censys's external exposure management product, built on first-party scanning of all 65K ports and the Censys Internet Map.	Sevco describes itself as an exposure management platform that centralizes vulnerabilities and security control gaps, prioritizes them, and automates and validates remediation, with an accurate asset inventory and asset intelligence as its foundation.
Deployment	Discovery expands from seeds the customer adds in the console or through the API; assets found beyond the seeds appear under a Found by Censys tab. Source: Censys docs: seed your attack surface · Read 27 Sep 2026	Installs in 30 minutes or less with no agent, scanner or network monitor, and with easy remote setup. Source: Sevco Security platform · Read 15 Oct 2026
CAASM aggregationDiffers	Not in our sources Not described on the pages we read.	Described Aggregates and correlates data from existing IT and security tools behind and in front of the firewall; an Asset Correlation Engine handles correlation, reconciliation and deduplication. Source: Sevco Security platform · Read 15 Oct 2026
Agent-based inventory	Not in our sources Not described on the pages we read.	Not in our sources Not described on the pages we read.
External attack surface managementDiffers	Described First-party scanning across all 65K ports finds services on nonstandard ports, starting from seeds you supply. Source: Censys external exposure management · Read 27 Sep 2026	Not in our sources Not described on the pages we read.
CMDB-centred inventory	Not in our sources Not described on the pages we read.	Not in our sources Not described on the pages we read.
Exposure managementDiffers	With a condition Applies EPSS and KEV to external findings, confirms reachability and routes remediation tasks; internal assets are not described. Source: Censys external exposure management · Read 27 Sep 2026	Described Describes itself as an exposure management platform that centralizes vulnerabilities and security control gaps, prioritizes them, and automates and validates remediation. Source: Sevco Security home page · Read 15 Oct 2026
Servers and network devices	Not in our sources	Not in our sources
Cloud workloadsDiffers	Matches Names AWS, Google Cloud and Azure among its integrations. Source: Censys integrations · Read 27 Sep 2026	Not in our sources
SaaS applications	Not in our sources	Not in our sources
Identities as assets	Not in our sources	Not in our sources
Off-network laptops	Not in our sources	Not in our sources
OT and IoT devices	Not in our sources	Not in our sources
Internet-facing discoveryDiffers	Matches First-party scanning of all 65K ports. Source: Censys external exposure management · Read 27 Sep 2026	Not in our sources
Offers its own agent	Not in our sources	Not in our sources
Works without new agents	Matches Discovery runs from the internet, starting from seeds added in the console or through the API. Source: Censys docs: seed your attack surface · Read 27 Sep 2026	Matches No agent, scanner or network monitor to install. Source: Sevco Security home page · Read 15 Oct 2026
Merges records from several sourcesDiffers	Not in our sources	Matches An Asset Correlation Engine handles correlation, reconciliation and deduplication. Source: Sevco Security platform · Read 15 Oct 2026
Feeds or updates a CMDBDiffers	Matches ServiceNow CMDB is a named integration. Source: Censys integrations · Read 27 Sep 2026	Not in our sources
Cross-source queries and reports	Not in our sources	Not in our sources
Workflows, tickets or actionsDiffers	Matches Auto-creates, routes and tracks remediation tasks. Source: Censys external exposure management · Read 27 Sep 2026	Partly Action Center offers pre-defined automated remediation, validated on the asset rather than when a ticket closes. Source: Sevco Security home page · Read 15 Oct 2026
Price or pricing basis publishedDiffers	Partly ASM is contact sales; a free platform account exists and credits start at $100. Source: Censys pricing · Read 27 Sep 2026	Not in our sources
Free tier or trialDiffers	Partly A free Censys platform account exists; ASM itself is sold through sales. Source: Censys pricing · Read 27 Sep 2026	Not in our sources
Platform it is part of	None	None
Integrations	Webex, Slack, Jira, ServiceNow ITSM, Tenable VM, Google Security Operations, Microsoft Sentinel, ServiceNow CMDB, Axonius, Brinqa, AWS, Google Cloud and Azure. Source: Censys integrations · Read 27 Sep 2026	Aggregates data from existing IT and security tools; an integration count or named integrations are not published on the pages we read. Source: Sevco Security platform · Read 15 Oct 2026
Price	ASM: contact sales. A free Censys platform account exists, and credits start at $100. Source: Censys pricing · Read 27 Sep 2026	Not published Not published. Source: Sevco Security home page · Read 15 Oct 2026

Where do they differ?

CAASM aggregation: Censys is not in our sources; Sevco describes it.
External attack surface management: Censys describes it; Sevco is not in our sources.
Exposure management: Censys describes it with a condition; Sevco describes it.
Cloud workloads: Censys matches; Sevco is not in our sources.
Internet-facing discovery: Censys matches; Sevco is not in our sources.
Merges records from several sources: Censys is not in our sources; Sevco matches.
Feeds or updates a CMDB: Censys matches; Sevco is not in our sources.
Workflows, tickets or actions: Censys matches; Sevco partly matches.
Price or pricing basis published: Censys partly matches; Sevco is not in our sources.
Free tier or trial: Censys partly matches; Sevco is not in our sources.

Can they work together?

Neither vendor's pages we read name the other as an integration. That does not mean they cannot work together; ask both vendors.

Choose Censys if

Your biggest unknown is what you expose to the internet
You want external findings to land in ServiceNow CMDB or an aggregation tool you already run

Choose Sevco if

You want an asset inventory built from the tools you already run, with no new agents
You want remediation tracked until it is validated on the asset

Which limits should you check?

Censys

An external view only: internal devices, SaaS apps and identities are not covered.
Discovery starts from seeds you supply, and ASM pricing goes through sales.

Sevco

No price, trial, integration count or named integrations published on the pages we read.
Coverage of SaaS, identities, OT and external assets, query capabilities and data freshness are not described on the pages we read.

Put Censys and Sevco in the asset census with others Run the finder

Questions people ask

Is Censys or Sevco better?

Neither is scored on this site. Censys describes 2 of five approaches and Sevco 2 on the pages we read, and they differ on 10 recorded facts. Which fits depends on where your assets live, whether you can install agents, your CMDB and your tools; the finder checks those.

Do Censys and Sevco work with a CMDB?

Censys: Matches. ServiceNow CMDB is a named integration. Sevco: Not in our sources.

Do Censys or Sevco publish prices?

Censys: ASM: contact sales. A free Censys platform account exists, and credits start at $100. Sevco: Not published.