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Apostille Services in California

Apostille California Issued Documents The Same Day

Apostille Fees

Personal and Business Documents

4-14 business days*

Federal Documents

1-2 weeks or 8-12 weeks**

+ govt fees
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Personal and Business Documents

1-3 business days*

Not available for Federal Docs
+ govt fees
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Same Day
Personal and Business Documents

24 hours*

Not available for Federal Docs
+ govt fees
Order now
Discounted volume rates

Priority processing

Net 30 invoicing / Designated
account manager

**1-2 weeks for Hague Countries and 8-12 weeks for Non-Hague countries

Expedited authentication, notary & translation services in California

When traveling to another country, either for business or pleasure, you may be required to show proper documentation. But more than that, each document may also need to be authenticated.

When you need to present your paperwork to another country, you require a certificate of authentication that verifies the attached signatures and seals.

There are two types of validation:

  1. Have your document apostilled
  2. Have your document legalized by the Embassy/Consulate

Did you know… the word apostille is French for ‘certificate’

If you are unsure which verification your destination country requires, don’t worry; we are here to assist you. As experts in apostille services, we know which type of authentication is required and have worked with nearly every country in the world. We can help you properly apostille your documents.

The Hague Convention of 1961 established a uniform process of confirming the authenticity of documents. Countries belonging to this convention accept the apostille, while non-member countries only accept legalized documents that are processed through the Embassy or Consulate.

For example: Italy, France, and Costa Rica all accept an apostille as a way to prove the authenticity of a document. And China, Thailand, and the UAE all require embassy legalization.

 Apostille Service
Apply online
Submit our form online and calculate an estimated cost immediately. We will also review a scan of your documents for any errors and let you know ASAP if additional steps are required.
Send us your documents
No need to make an appointment or go to a physical location. Just mail us your documents through a secure tracked shipping service (FedEx, DHL, or UPS). In some cases we may not even need the physical copy!
Receive your documents
Once completed, your apostilled/legalized documents will be shipped to you via FedEx or DHL and will arrive at your doorstep. Whether in the US or Worldwide, we’ll get your important documents to you wherever you may be.

Documents We Apostille in the USA

Personal or Family Documents
  • Marriage certificates
  • Death certificates
  • Birth certificates
  • Divorce decrees
  • Single status affidavits
  • Power of attorney
  • Wills
  • Car titles
  • Adoption dossier
  • FBI records
  • Criminal history reports
  • Any notarized document
Corporate Documents
  • Certificates of good standing
  • Certificates of incorporation
  • Certificates of origin
  • Power of attorney
  • Hiring documents
  • Company invoices
  • Other business documents
Academic Documents
  • High school
  • GED
  • College diplomas
  • Report cards
  • Other various school records

Place an order to calculate your cost or talk to our experts

We Specialize in California Apostille Service

One Source Process is not new to the apostille process. We have been helping people just like you receive an apostille or embassy legalization since 2010.

We offer a range of services for personal and business documents. Documents including birth certificates, marriage certificates, diplomas, transcripts, FBI reports, power of attorney, and much more. Our team will handle acquiring the apostille of the documents. We will work with the correct California state offices, federal office of authentications, and if needed, the Embassy or Consulate.

Whether you are located in San Francisco, Sacramento, Los Angeles, or any of the surrounding communities, we take care of the entire process for you, saving you time and hassle. Our offices are headquartered in Washington, DC, but we provide our services to every state, especially California.

Working with us is easy. Once you have the correct paperwork, simply fill out the Order Form and either upload your documents, or send them to us via mail. We will review all information for FREE and let you know of any missing or wrong information. Because even the smallest of errors can cause a delay or rejection in the process.

Items we review for are:

  • Some documents require a notary signature to receive an apostille
  • Some documents must NEVER have a notary signature
  • We an accept some certified copies of papers
  • In some cases, we must have the original documents

But don’t worry, we will let you know all the rules and regulations for each document, and for each country.

When we are confident that all the documents are correct and ready, only then do we send you a pricing invoice and timeline for completion. With other companies, you often have to pay upfront before you know if you have everything needed.

When we receive the apostille or embassy legalization, we will mail the original paperwork back to you via Fed Ex or DHL. You never have to leave home.

Do you need an apostille on documents issued in different states?

We are able to process multiple documents, simultaneously, in all 50 states and territories. Check out our apostille services in New Jersey, our apostille services in Florida, our apostille services in Texas and our apostille services in Boston. You can also view our services in other states and cities here.

Embassy Legalization Services
documents verified for use in another country

Enjoy Our Guaranteed Customer Service

Our California apostille process is simple, stress-free, and will exceed your expectations; we guarantee it. We are dedicated to 100% customer satisfaction and will handle your documents with great care to ensure their safe return to you.

When you choose One Source Process for your California apostille needs, you can trust that we will provide you with the highest level of service. We guarantee that we will process your documents accurately and efficiently, and we will always keep you informed of the status of your order.

We believe good customer service consists of:

  • Ensuring you have the proper documents
  • Quickly obtaining the apostille
  • Answering any questions you have before and during the process

When working with us, you can rest assured that we will quickly and successfully obtain the apostille, and do it with a level of customer service that will leave you happy you called.

You Get More with Us

But we do more than obtain a California apostille or embassy legalization for you.

  • If you require an expedited or even same-day apostille service for your documents, we are here to help. Our staff is available 7 days a week to assist you with any type of expedited apostille, ensuring that you can meet your deadline.
  • We also offer certified translation services for destination countries that require it. We can have your documents translated into the necessary language at the time of obtaining the apostille, which saves you time and money from having to translate the documents separately.

Testimonials from real clients

Don Pelletier
Broker & Real Estate Consultant
I highly recommend One Source Process for all of your document legalization needs. I will recommend them to my colleagues, friends, and incoming employees for overseas employment. They tackled two complex problems for me with ease. They communicated well and addressed all my concerns in a prompt manner through email and phone calls. If you ever need document legalization services, call no one else, I won’t.
The Don Pelletier Group, Inc
Holly Webb
Personal Assistant
We have used a few different process servers and no one has provided the level of customer service that One Source Process has. They are very reliable and they communicate every step of the way. Alex and Brandon have been a huge help and they always take their time to understand our needs. We look forward to working with One Source Process for a long time
Schoppl Law
Bryan Cosgrove
Personal Assistant
Professional and efficient - Having not been through the Apostille Service previously, we were guided and taught what we were doing by extremely professional and courteous individuals. We couldn't be more pleased at the efficiency and the speed at which they were able to get the job done. The final product was accepted by the bank and the beneficiaries of the estate received their funds, everyone was happy. Thank you, One Source Process, Inc.
The Law Offices Of George Castrataro

Common questions about Apostille and Legalization

What is an Apostille ?
What Documents you can Apostille?
Can you apostille photocopies of my documents?
What is your refund policy?

Ask us anything!

Our CEO Brandon Yoshimura and Director of Operations Danny Koo.

Ask us anything!

    CEO Brandon Yoshimura (left) and Director of Operations Danny Koo (right) outside of our office in Washington, DC.