External Service Providers

Turn ESP responsibilities into scheduled evidence outputs

How to document and maintain CMMC evidence for MSPs, MSSPs, CSPs, managed enclaves, and other external service providers.

See the MSP coordination service Use the owner matrix

Document services and scope relationship

Map inherited, shared, and organization-owned objectives

Define provider evidence outputs and cadence

Escalate missing evidence through the contract owner

An ESP is part of the evidence story

DoD guidance recognizes that enterprise components or an ESP may satisfy requirements when adequate evidence shows the objectives are implemented. The contractor should be able to explain the relationship and produce relevant provider support.

Convert responsibility language into an operating schedule

A CRM or service description is not complete operationally until each responsibility has a defined evidence output.

Provider service and responsible contact
Objectives or requirements supported
Expected report, attestation, configuration, ticket, or other evidence
Reporting period and delivery cadence
Client review and qualified-review owner
Contract escalation when the output is unavailable

Track provider changes like internal changes

Service upgrades, subcontractors, architecture changes, new data locations, changed report contents, and contract renewals can affect the evidence story. Feed provider changes into the same trigger-review workflow used for internal systems.

What the work produces

Concrete, client-owned operating records

ESP relationship register

Responsibility-to-evidence map

Provider output calendar

Missing-provider-evidence queue

Change and escalation log

Responsibility boundary

Facts, not verdicts

Gridex coordinates provider evidence. Gridex does not audit the provider or declare that the provider’s service satisfies a CMMC objective.

Questions buyers ask

Frequently asked questions

Does a provider certification automatically satisfy our CMMC objective?

Not automatically. Applicability, scope, responsibility, and adequate evidence must be evaluated for the specific objective and relationship.

What if the provider refuses to share evidence?

Record the gap, escalate through the contract owner, evaluate alternative evidence or service terms with qualified advisors, and avoid assuming inheritance without support.

Primary references

Source context

DoD CMMC Level 2 Assessment Guide v2.13 Defines assessment objectives, evidence expectations, MET and NOT MET findings, and Examine, Interview, and Test methods. DoD CMMC Level 2 Scoping Guide v2.13 Defines the assessment scope, asset categories, ESP relationships, and responsibility documentation.

Start with one bounded scope

Bring the evidence state you actually have.

Gridex will map the operating work, the human judgment boundary, and the safest next step.

See the MSP coordination service →