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Document Authentication & Apostille Services

G3's Document Authentication Team understands the requirements to guarantee your crucial documents' acceptance overseas.

International Document Expertise

G3 Global Services provides authentication services to corporation, US citizens, and non-US citizens for all documents that will be used overseas. If you plan to use a public or corporate document overseas, it must be legalized and certified by the local representation of that country (Consulate or Embassy) prior to use or it will not be valid. Each country has their own requirements for documentation, as it will depend on the type of document and how it will be used.

Questions? We can help! Contact G3’s Document Legalization Team at Documents@g3visas.com to get expert guidance and advice on next steps and requirements.

How it Works

Frequently Asked Questions

Understanding the Difference Between Apostille
and Certification Services

What Types of Documents Can G3 Apostille

Find an authentication office near you

At G3, we streamline document authentication requests through our convenient online wizard application tool, ensuring a hassle-free process for our clients. However, if you prefer to have a consultation, please contact one of our experts +1 (561) 851-6193.


Head Phones

We’re Always Available To Help.

The G3 offices are staffed with knowledgeable specialists who will handle all your requests every step of the way. Call us Toll Free +1 (202) 600-3908