A GCC High alternative is any platform a defense contractor uses instead of Microsoft 365 Government Community Cloud High to handle controlled unclassified information. People look for one because GCC High is expensive, slow to procure and heavier than a ten-person shop needs — but the alternative still has to meet the same obligations, and most products that market themselves this way only cover part of the problem.

We do not sell a GCC High alternative. This is a buyer’s guide written by people who run infrastructure for small organisations and keep being asked the question.

What GCC High Is For

GCC High is Microsoft’s U.S. government-focused cloud, used by contractors that need to store or transmit controlled unclassified information, and often by those with ITAR-controlled technical data. Its selling points are the contractual commitments around where data lives and who may access it, and its alignment with the requirements DoD contracts flow down.

Its problems for a small contractor are familiar: licensing cost per user, a migration that cannot be done casually, and a tenant that has to be administered by someone who knows what they are doing.

What Any GCC High Alternative Has To Answer

Before you compare prices, get written answers to these. If a vendor cannot answer in writing, that is your answer.

• Does the contract say it supports CUI? Marketing language is not a commitment. You want it in the agreement.
• Where is the data, and who can touch it? Including support staff, subcontractors and anyone who can access backups.
• Is the cryptography validated? DoD requirements point at FIPS-validated cryptography, not simply “encrypted”.
• Will they accept the flow-down clauses? DFARS 252.204-7012 obligations, including incident reporting timelines, have to land somewhere.
• How does it handle incident reporting? You have deadlines. Your vendor’s process either helps you meet them or quietly makes you miss them.
• What is in scope, and what is not? Most alternatives protect specific data flows — email and file sharing, typically — and leave your endpoints, network and everything else exactly as exposed as they were.
• Can your assessor live with it? Ask your C3PAO or consultant before you buy, not after.

The Mistake That Costs The Most

Treating a GCC High alternative as a compliance purchase. Tools cover requirements; they do not cover scope, evidence, training or process. A small contractor who buys a compliant email product, then keeps drawings in a general file share and on a laptop that anyone can borrow, has spent money and changed nothing.

The cheaper path, almost always, is to shrink the footprint first: decide exactly which systems hold CUI, keep that enclave small and dull, and leave everything else out of scope deliberately. Then buy for the enclave.

Where We Are Useful, And Where We Are Not

We are not an assessor, we do not sell a CUI enclave, and we will not tell you our hosting makes you compliant. What we do run is the ordinary infrastructure around the enclave: the public website, the general business mailboxes on Liberation Email, backups of non-CUI systems, and hosting on hardware we own in the United States. Keeping that side clean and clearly out of scope is one of the cheapest things a small contractor can do to reduce assessment cost.

If you want a straight conversation about which systems are in scope and which are not, book a call. If the answer is that you need GCC High or a purpose-built enclave, we will say so. Our explainer on CMMC compliance covers the levels and what Level 2 asks for.

GCC High Alternative FAQ

What is a GCC High alternative?

Any platform used instead of Microsoft 365 GCC High to handle controlled unclassified information, usually marketed at defense contractors that find GCC High too expensive or too heavy. It has to meet the same contractual obligations to be useful.

Is a GCC High alternative cheaper?

Usually on the licence line, yes. Whether it is cheaper overall depends on how much of your environment is in scope, because most alternatives cover email and file sharing only.

Do we need GCC High for CMMC Level 2?

Not automatically. What you need is a system that meets the requirements your contract flows down, with evidence. Confirm the approach with your assessor before you commit to a platform.

What should we check before buying?

Written support for CUI in the contract, data location and personnel access, FIPS-validated cryptography, acceptance of DFARS flow-down clauses, incident reporting process, and exactly which parts of your environment the product covers.

Does LiberationTek sell a GCC High alternative?

No. We run the infrastructure outside your CUI enclave and help you keep that boundary small and documented.

Quick Answers for Buyers Comparing a GCC High Alternative

• Get written answers from every vendor before you compare prices.
• Ask which systems the product covers. Most cover email and file sharing only.
• Decide which systems hold controlled unclassified information first, then buy for that small set.
• Check with your assessor or consultant before you sign, not after.
• Read your own contract to see which requirements it passes down to you.

Questions to Put to Every Vendor

This table turns the checks above into a form you can send to each vendor and compare side by side. The right answer is the one you can point to in a signed document.

Question	What you want to see	Red flag
Does the contract support CUI?	Stated in the agreement	Only marketing pages say so
Where is data stored?	Named locations, including backups	Vague answers about “the cloud”
Who can access it?	A list of roles, including support staff and subcontractors	No answer about personnel
Is encryption validated?	Validated cryptography named in writing	“Encrypted” with no detail
Will they accept flow-down clauses?	Written agreement to the clauses your contract lists	Refusal or silence
How is an incident handled?	A process that helps you meet your deadlines	No process, or only email support
What is out of scope?	A clear list of what the product does not cover	A claim that it covers everything

A Buyer’s Process in Eight Steps

1. Read the contract clauses that mention CUI and note what they require.
2. List every system where CUI is created, stored or sent.
3. Draw a boundary around those systems and move everything else outside it on purpose.
4. Write down the questions above and send them to each vendor in writing.
5. Ask your assessor or consultant which vendors they have seen work in practice.
6. Compare the written answers, not the brochures.
7. Price the whole setup, including migration, administration time and training.
8. Pick the option that fits the smallest boundary you can defend.

A Simple Example of Shrinking the Footprint

Take a ten-person machine shop that receives drawings from a prime contractor. Drawings arrive by email, get saved to a shared folder and end up on three laptops. The website, the marketing mailbox and the accounting files have nothing to do with the drawings. The shop decides that only two laptops and one file store will hold CUI, and it keeps everything else outside that boundary. This is an illustration, not a prescription, since each contract is different, but it shows why scope comes before tooling.

Official Sources Worth Reading

The Department of Defense Chief Information Officer maintains a CMMC resource hub. The National Institute of Standards and Technology publishes Special Publication 800-171, which describes requirements for protecting CUI on nonfederal systems. Check which revision and which clauses your own contract cites. This is general information and not legal or compliance advice, and your assessor is the right person to confirm what applies to you.

For more from us, see our explainer on CMMC compliance, our page on which compliance framework applies and our overview of managed security for business.

Common Mistakes When Choosing a GCC High Alternative

• Buying a product before deciding which systems are in scope.
• Treating a marketing claim as a contract commitment.
• Forgetting backups and support staff when asking where data lives.
• Leaving drawings and files on general shared folders or borrowed laptops.
• Talking to the assessor only after the purchase.

Buyer’s Checklist

• Contract clauses read and summarized.
• CUI systems listed and boundary drawn.
• Questions sent to vendors in writing.
• Written answers filed with the decision.
• Assessor consulted before signing.
• Total cost calculated with migration and administration.

More Questions Buyers Ask

How many vendors should I compare?

Two or three is enough. Send each the same written questions and compare answers in the same table. More than that usually adds time without adding clarity.

What if a vendor will not answer in writing?

Treat that as an answer. If they cannot commit in writing to how they handle your data, they are unlikely to stand behind it in an assessment.

Can a small company keep most systems out of scope?

Often that is the goal, but it depends on where CUI actually flows in your business and on what your contract and assessor accept. Document the boundary and get it reviewed before you rely on it.

Who should I talk to before buying?

Your assessor or compliance consultant, and whoever manages your contract with the prime. They can tell you what they expect to see.

How long does a migration usually take?

It depends on how many users, mailboxes and files you have, and on how much preparation you do first. Ask each vendor for a realistic timeline in writing, and plan for some overlap so work does not stop while you move.

Related reading

• Is It Safe to Give a Developer Your WordPress Password?
• How to Optimize the No 1 Team Collaboration Tools for Security and Privacy
• CMMC Compliance for Small Defense Contractors — What Level 2 actually asks for, in plain terms.
• How to Protect Your Business Online — The controls that apply whether or not you hold CUI.