Azure Government vs AWS GovCloud — Honest Comparison for FedRAMP-Bound SaaS

If you're a SaaS company building toward a FedRAMP authorization, your hosting platform is the first big decision and the hardest to reverse. Azure Government and AWS GovCloud both have FedRAMP High authorizations and serve similar markets. The differences matter at the operational level. This is the honest comparison.

The 30-second version

Dimension	AWS GovCloud (US)	Azure Government
FedRAMP authorization	High (across most services)	High (across most services)
IL5 (DoD higher)	Yes	Yes
IL6 (DoD classified)	No (use AWS Secret Region)	Yes (Azure Government Secret)
Service breadth	Broadest catalog	Strong but lags some commercial Azure services
Pricing premium vs commercial	~30% premium	~25% premium
Identity model	IAM (commercial-style)	Entra ID Government (deeper M365 integration)
Best fit if your customer is	Civilian agencies + DoD	DoD + agencies on M365 GCC

Both work. The right pick depends on your customer mix and whether you're already in the AWS or Microsoft ecosystem.

Service catalog reality

AWS GovCloud has the broadest catalog of FedRAMP-High-authorized services. Most commercial AWS services land in GovCloud within 6–18 months of GA, though some specialized services (e.g., certain AI/ML services, some IoT services) take longer or never make it.

Azure Government has strong coverage of core compute/storage/networking + the SQL Database + the AI services Microsoft has prioritized for federal. It lags on some commercial Azure services, particularly newer services and some Power Platform / Dynamics features.

If your application uses unusual or newer services, check the FedRAMP Marketplace for the specific service before committing.

Identity and access management

AWS GovCloud uses IAM and IAM Identity Center (formerly AWS SSO). Familiar to any AWS-native team. Cross-region trust to your commercial AWS account is supported (commercial → GovCloud is one-way; GovCloud → commercial is restricted).

Azure Government uses Entra ID Government, which is a separate tenant from your commercial Entra ID. If your customers run Microsoft 365 GCC, their identities live in Entra ID Government — a deeper integration story than AWS offers for the same customer.

For SaaS selling to federal customers who already use M365 GCC: Azure Government's identity story is meaningfully better. For SaaS that uses its own identity model and just needs a hosting platform: AWS GovCloud is fine and often better-tooled.

Pricing

Both platforms charge a premium over commercial. The premium is real and recurring. As of mid-2026:

Service	Commercial	Government
EC2 m6i.large equivalent (per hour)	~$0.10	~$0.13
S3 Standard storage (per GB-month)	~$0.023	~$0.030
RDS db.m6i.large (per hour)	~$0.18	~$0.23
Azure D4s v5 VM (per hour)	~$0.19	~$0.24
Azure SQL Database General Purpose vCore	~$0.50/vCore-hr	~$0.62/vCore-hr
Azure Storage GRS (per GB-month)	~$0.046	~$0.058

For a SaaS at modest scale (~$50K/mo commercial spend), the gov premium adds $12K–$15K/mo. At larger scale ($500K+/mo), the absolute premium becomes meaningful and worth optimizing for.

Region and availability zone constraints

AWS GovCloud has 2 regions (US-East and US-West) each with 3 availability zones. Cross-region replication and failover work the same as commercial.

Azure Government has US Gov Virginia, US Gov Texas, US Gov Arizona, and US Gov Iowa — more regions but fewer commercial-style services in each. Some services are region-restricted within Azure Government.

For multi-region failover, both work. For DR planning, both support cross-region patterns.

Connectivity to commercial cloud

AWS GovCloud → commercial AWS: limited. Some services support cross-partition (e.g., DNS resolution, some IAM federation). Direct VPC peering is not supported. Most architectures treat GovCloud as a separate cloud.

Azure Government → commercial Azure: similarly limited. ExpressRoute can connect to either but not bridge them. Most architectures treat them as separate.

If you have customers in both commercial and government, plan for two parallel deployments with separate CI/CD pipelines, separate state stores, and separate observability stacks. This is operationally significant.

Operational tooling

AWS GovCloud:

• CloudFormation, Terraform, CDK all work
• CloudWatch and CloudTrail at parity with commercial
• AWS Console UI is the same
• Most third-party tools (Datadog, Splunk, Sumo Logic) have GovCloud-authorized variants

Azure Government:

• ARM templates, Bicep, Terraform all work
• Azure Monitor and Log Analytics at parity with commercial
• Azure Portal is the same UI
• Third-party gov-cloud tooling exists but is less mature than AWS

For Infrastructure-as-Code, both are well-supported. For developer tooling and observability, AWS has slightly broader third-party support today.

DevOps and CI/CD

Neither GitHub.com nor GitLab.com is FedRAMP-authorized for the SCM tier. Your options:

• GitHub Enterprise Server — self-hosted in your gov cloud, you operate it
• GitLab self-managed — same model
• AWS CodeCommit / CodePipeline — AWS-native, GovCloud-available
• Azure DevOps Government — Microsoft-native, gov-cloud variant

For CI/CD compute, GitHub Actions and GitLab CI runners can be self-hosted in either GovCloud or Azure Government. Cloud-hosted runners (GitHub-hosted runners on github.com) are not FedRAMP-authorized, so most CI/CD ends up self-hosted in the gov cloud.

This is a common surprise for teams used to commercial-cloud GitHub Actions. Plan the time to self-host and harden the runners.

Compliance posture

Both platforms publish their FedRAMP packages, customer responsibility matrices (CRMs), and shared responsibility models. Both have:

• FedRAMP High authorizations
• DoD IL2/IL4/IL5 provisional authorizations
• HIPAA, FERPA, IRS Publication 1075 compliance
• ISO 27001, SOC 1/2/3

Azure Government adds DoD IL6 via Azure Government Secret. AWS uses a separate AWS Secret Region for IL6 — same outcome, different naming.

For your authorization package, both provide CRMs that make inheritance documentation straightforward. The CRMs document which 800-53 controls the platform satisfies, which are shared, and which are entirely your responsibility.

Which to pick if you're a small SaaS

Pick AWS GovCloud if:

• Your team is AWS-native today (commercial product runs on AWS)
• Your customer mix skews civilian agencies
• You need broad service catalog including newer services
• You want the largest third-party tooling ecosystem
• You're comfortable building your own identity story

Pick Azure Government if:

• Your customer mix skews DoD (especially M365 GCC users)
• You need IL6 / classified path eventually
• Your team is Microsoft-stack native
• Your application integrates deeply with M365 (Teams, SharePoint, Graph API)
• You want Entra ID Government for federated identity with customer environments

Either works if:

• You're a generic SaaS with no strong tie to either cloud today
• Your application uses standard services (compute, database, object storage, queues)
• You're willing to learn the platform that fits the customer mix

The reverse decision is expensive. Re-platforming a FedRAMP-authorized SaaS from AWS GovCloud to Azure Government (or vice versa) requires re-doing meaningful portions of the SSP and re-running the assessment for the platform-specific controls. Plan to commit.

What FieldLedger uses today

FieldLedger runs on AWS commercial today. We are not FedRAMP-authorized and don't store CUI for our customers. The DCAA-compliant timekeeping, indirect-rate, and federal-invoicing data is the contractor's own internal cost data, which is not federally-controlled CUI in the typical case.

If we move toward FedRAMP authorization, the technical migration target is AWS GovCloud — same architecture, same Terraform modules, different region partition. The decision driver will be customer demand: when ~$3M ARR is gated by FedRAMP-required customers, the $400K–$800K Tailored authorization investment pays back.

What to do this week if you're choosing

1. Inventory your application's AWS/Azure service usage. Cross-reference the FedRAMP Marketplace to confirm each is available in the gov variant.

2. Check your customer mix. If 70% of your near-term federal pipeline is DoD on M365 GCC, Azure Government is the better integration story.

3. Talk to a 3PAO about platform choice. They've seen both go through assessment and know where each platform's CRM is strong vs weak.

4. Run a small proof-of-concept in the chosen platform. A week of poking around tells you more than weeks of architecture discussions.

5. Budget the price uplift. ~25–30% premium on infrastructure costs. Factor into pricing or eat the margin compression.

Related reading

• FedRAMP Low vs Moderate for SaaS contractors
• FedRAMP-approved cloud service providers list
• FedRAMP audit cost breakdown
• NIST 800-171 compliance for small government contractors