SIDE BY SIDE · FACTS ONLY

JupiterOne vs Defender EASM: asset inventory facts side by side

SHORT ANSWER

JupiterOne describes 2 of the five approaches on the pages we read and Defender EASM describes 2; they differ on CAASM aggregation and External attack surface management. On collection, JupiterOne works without new agents and Defender EASM 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 and 11 October 2026. Profiles follow our published method; we did not run the products.

How do their approaches compare?

Top bar: JupiterOne
Lower bar, lighter: Microsoft Defender EASM

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	JupiterOne	Microsoft Defender EASM
Positioning	A cyber asset platform built on a security graph: more than 200 integrations feed assets and their relationships into a graph you can query in plain English or with a pre-built query library.	Microsoft's external attack surface management service, run as an Azure resource, with a prebuilt inventory, recursive discovery from seeds and billing on the Azure bill.
Deployment	SaaS with API integrations; useful coverage depends on how many integrations a team configures. Source: JupiterOne platform · Read 27 Sep 2026	An Azure resource. Cross-tenant resource access, including Azure Lighthouse, is not supported. Source: Microsoft Learn: Defender EASM overview · Read 27 Sep 2026
CAASM aggregationDiffers	Described 200+ pre-built integrations feed a security graph of devices, users, networks, applications, data, code repositories, security controls and owners. Source: JupiterOne platform · Read 27 Sep 2026	Not in our sources Not described on the pages we read.
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	Not in our sources Not described on the pages we read.	Described A prebuilt inventory for many organisations plus recursive discovery from seeds you supply. Source: Microsoft Learn: what is discovery · Read 27 Sep 2026
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 management	With a condition Blast radius views on the graph; Unified Vulnerability Management, announced in May 2026, deduplicates findings across tools. Source: GlobeNewswire: JupiterOne AI system mapping and Unified Vulnerability Management · Read 27 Sep 2026	With a condition Dashboards for vulnerabilities, compliance and hygiene on external assets; remediation happens downstream through Log Analytics and Azure Data Explorer. Source: Microsoft Learn: data connections · Read 27 Sep 2026
Servers and network devicesDiffers	Partly Networks are a listed asset class; network devices are not called out. Source: JupiterOne platform · Read 27 Sep 2026	Not in our sources
Cloud workloadsDiffers	Partly Covered through integrations; cloud workloads are not named as a class on the platform page. Source: JupiterOne platform · Read 27 Sep 2026	Not in our sources
SaaS applicationsDiffers	Partly Applications are a listed asset class. Source: JupiterOne platform · Read 27 Sep 2026	Not in our sources
Identities as assetsDiffers	Matches Users are a listed asset class. Source: JupiterOne platform · Read 27 Sep 2026	Not in our sources
Off-network laptopsDiffers	Partly Devices are a listed asset class, through the endpoint tools you integrate. Source: JupiterOne platform · Read 27 Sep 2026	Not in our sources
OT and IoT devices	Not in our sources	Not in our sources
Internet-facing discoveryDiffers	Not in our sources	Matches Prebuilt inventory and recursive discovery from seeds. Source: Microsoft Learn: what is discovery · Read 27 Sep 2026
Offers its own agent	Not in our sources	Not in our sources
Works without new agents	Matches Builds its graph from API integrations. Source: JupiterOne platform · Read 27 Sep 2026	Matches An Azure service that discovers from seeds and a prebuilt inventory. Source: Microsoft Learn: Defender EASM overview · Read 27 Sep 2026
Merges records from several sourcesDiffers	Partly The graph maps relationships between assets; how duplicate records merge depends on the data each integration supplies. Source: JupiterOne platform · Read 27 Sep 2026	Not in our sources
Feeds or updates a CMDB	Not in our sources	Not in our sources
Cross-source queries and reportsDiffers	Matches Graph queries in plain English, a pre-built query library and compliance insights. Source: JupiterOne platform · Read 27 Sep 2026	Partly Dashboards for vulnerabilities, compliance and hygiene. Source: Microsoft Learn: Defender EASM overview · Read 27 Sep 2026
Workflows, tickets or actions	Partly Alerts are documented; write-back actions into other systems are not. Source: JupiterOne platform · Read 27 Sep 2026	Partly Data connections to Log Analytics and Azure Data Explorer trigger remediation actions downstream. Source: Microsoft Learn: data connections · Read 27 Sep 2026
Price or pricing basis publishedDiffers	Matches Annual list prices of $25,000, $50,000 and $100,000 by tier. Source: JupiterOne pricing · Read 27 Sep 2026	Partly Billable assets are defined (approved host:IP combinations, domains and IP addresses) and charged on the Azure bill; Microsoft's pricing page showed no rate when we read it. Source: Microsoft Learn: understanding billable assets · Read 27 Sep 2026
Free tier or trialDiffers	Not in our sources	Matches A 30-day free trial, then Azure billing. Source: Microsoft Learn: understanding billable assets · Read 27 Sep 2026
Platform it is part of	None	Microsoft: Native to Azure, billed on the Azure bill, with a Security Copilot integration in preview. Source: Microsoft Learn: Defender EASM documentation · Read 27 Sep 2026
Integrations	200+ pre-built security integrations. Source: JupiterOne platform · Read 27 Sep 2026	Data connections to Log Analytics and Azure Data Explorer, and a Security Copilot integration in preview. Source: Microsoft Learn: data connections · Read 27 Sep 2026
Price	Published: Small-Market $25,000 a year; Mid-Market $50,000 for 12 months up to 200,000 data points; Enterprise $100,000 for 12 months up to 400,000 data points; custom above 1 million data points. Priced on data points and term. No free tier or trial mentioned. Source: JupiterOne pricing · Read 27 Sep 2026	Billed through Azure on billable assets (approved host:IP combinations, domains and IP addresses) after a 30-day free trial. Microsoft's pricing page did not show a rate when we read it; check it for the current figure. Source: Microsoft Learn: understanding billable assets · Read 27 Sep 2026

Where do they differ?

CAASM aggregation: JupiterOne describes it; Defender EASM is not in our sources.
External attack surface management: JupiterOne is not in our sources; Defender EASM describes it.
Servers and network devices: JupiterOne partly matches; Defender EASM is not in our sources.
Cloud workloads: JupiterOne partly matches; Defender EASM is not in our sources.
SaaS applications: JupiterOne partly matches; Defender EASM is not in our sources.
Identities as assets: JupiterOne matches; Defender EASM is not in our sources.
Off-network laptops: JupiterOne partly matches; Defender EASM is not in our sources.
Internet-facing discovery: JupiterOne is not in our sources; Defender EASM matches.
Merges records from several sources: JupiterOne partly matches; Defender EASM is not in our sources.
Cross-source queries and reports: JupiterOne matches; Defender EASM partly matches.
Price or pricing basis published: JupiterOne matches; Defender EASM partly matches.
Free tier or trial: JupiterOne is not in our sources; Defender EASM matches.

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 JupiterOne if

You want to ask relationship questions across assets, users and code
You need a published price before a sales call

Choose Defender EASM if

You are on Azure and want an external inventory without a sales call
You want an outside-in baseline before choosing an inventory platform

Which limits should you check?

JupiterOne

OT and IoT devices are not listed among its asset classes.
Write-back actions into other systems are not documented, and no free tier or trial is mentioned.

Defender EASM

External assets only: internal devices, SaaS apps and identities are not covered.
No built-in remediation workflow, and no cross-tenant resource access for groups with several Azure tenants.

Put JupiterOne and Defender EASM in the asset census with others Run the finder

Questions people ask

Is JupiterOne or Defender EASM better?

Neither is scored on this site. JupiterOne describes 2 of five approaches and Defender EASM 2 on the pages we read, and they differ on 12 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 JupiterOne and Defender EASM work with a CMDB?

JupiterOne: Not in our sources. Defender EASM: Not in our sources.

Do JupiterOne or Defender EASM publish prices?

JupiterOne: Published: Small-Market $25,000 a year; Mid-Market $50,000 for 12 months up to 200,000 data points; Enterprise $100,000 for 12 months up to 400,000 data points; custom above 1 million data points. Priced on data points and term. No free tier or trial mentioned. Defender EASM: Billed through Azure on billable assets (approved host:IP combinations, domains and IP addresses) after a 30-day free trial. Microsoft's pricing page did not show a rate when we read it; check it for the current figure.