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Founded Year



Grant - III | Alive

Total Raised


Last Raised

$2.26M | 5 yrs ago

Mosaic Score
The Mosaic Score is an algorithm that measures the overall financial health and market potential of private companies.

+10 points in the past 30 days

About Proton

Proton is a mobile application for secure e-mailing. It provides free encrypted email, calendar, drive, and virtual private network (VPN) services.. It is formerly known as ProtonMail. The company was founded in 2014 and is based in Plan-les-Ouates, Switzerland.

Headquarters Location

Route de la Galaise 32

Plan-les-Ouates, CH-1228,




Proton Patents

Proton has filed 42 patents.

The 3 most popular patent topics include:

  • computer memory
  • mobile payments
  • cryptography
patents chart

Application Date

Grant Date


Related Topics




Elliptic curve cryptography, Elliptic curves, Cryptography, Digital signature schemes, Cryptographic protocols


Application Date


Grant Date



Related Topics

Elliptic curve cryptography, Elliptic curves, Cryptography, Digital signature schemes, Cryptographic protocols



Latest Proton News

Proton Sentinel arrives for Proton Pass Plus users, secures accounts even when credentials are stolen

Dec 1, 2023

Proton Sentinel arrives for Proton Pass Plus users, secures accounts even when credentials are stolen Michael Potuck  | Dec 1 2023 - 12:40 pm PT Continuing with its mission to provide the most private and secure services, Proton is out today with the expansion of its Proton Sentinel security program. The feature comes to Proton Pass Plus users for free and delivers the company’s highest level of protection that can secure your Proton account even if your login credentials are compromised. Proton Pass arrived as the company’s end-to-end encrypted password manager in the spring in beta with the official launch in June . Notably, it’s not just your username and password that are end-to-end encrypted, it’s every field of data and metadata saved with Proton Pass. In a blog post today, Proton announced that all Proton Pass Plus users are getting the Sentinel security at no cost: Now, we’re providing even more protection for your most sensitive information. Starting today, everyone with a Proton Pass Plus plan will have access to our high-security Proton Sentinel program, which has already blocked over 3,000 account takeover attacks since we introduced it in August. Proton highlights that 92% of successful cyberattacks use social engineering and login credentials are the most common target of those attacks. Here’s how Proton Sentinel addresses that problem: Proton Sentinel can prevent an attacker from accessing to your data even if they have successfully stolen your Proton Account username and password. Proton Sentinel combines artificial intelligence monitoring with human expertise to detect, identify, and challenge any suspicious account takeover attempt. And Proton Sentinel does this well because it leverages the lessons we learned building Proton’s anti-abuse systems that protect over 100 million accounts. These systems have seen a vast number of login attempts and are able to correctly characterize and identify threat actors on a massive scale. If you’re already a Proton Pass Plus user, you can head to your Proton Pass account > Security and Privacy > Enable Proton Sentinel. If you’d like to sign up, Proton Pass Plus goes from as low as $1.99/month when paying for a year for Cyber Week. Learn more about all the features of Proton Sentinel in the company’s full post .

Proton Frequently Asked Questions (FAQ)

  • When was Proton founded?

    Proton was founded in 2014.

  • Where is Proton's headquarters?

    Proton's headquarters is located at Route de la Galaise 32, Plan-les-Ouates.

  • What is Proton's latest funding round?

    Proton's latest funding round is Grant - III.

  • How much did Proton raise?

    Proton raised a total of $4.87M.

  • Who are the investors of Proton?

    Investors of Proton include Horizon 2020, CRV, Fongit Seed Invest and Indiegogo.

  • Who are Proton's competitors?

    Competitors of Proton include Virtru, Hornetdrive, Paubox, NUTS Technologies, ALTER and 7 more.


Compare Proton to Competitors

Virtru Logo

Virtru specializes in data privacy and protection, operating within the data security industry. The company offers end-to-end encryption services for data shared through various platforms, including email and file-sharing, cloud, and software-as-a-service (SaaS) solutions. It primarily serves sectors such as healthcare, education, government, and financial services. It was founded in 2012 and is based in Washington, DC.

Essential Security Software

Essential Security Software offers email encryption software.


Founded in 2003 and headquartered in Tampa, Florida, Ceelox, a Veteran-Owned Small Business, is an established, developer and marketer of biometric security and email encryption software solutions for financial institutions, healthcare, government agencies, multiple vertical markets and businesses of all sizes. Ceelox' biometric and encryption software solutions provide affordable, and fresh ways for customers to securely access, as well as, send and receive confidential information. Ceelox' biometric security and email encryption tools are designed for easy deployment and do not require enterprise infrastructure changes. They are designed as end-point solutions, often filling the gaps in policy management or flexibility left out by large enterprise security products. Ceelox' customers are in a variety of vertical markets where security and identification are key concerns. n


GCrypt provides a unique service in the UK marketplace through its patent-protected SSLPost core email encryption technology. The technology offers secure email and secure electronic document delivery solutions.

Paubox Logo

Paubox is a company that specializes in the healthcare technology sector, with a focus on email security. The company offers HIPAA compliant email services, ensuring secure and easy communication for healthcare providers. The primary customers of Paubox are organizations within the healthcare industry. It was founded in 2015 and is based in San Francisco, California.

DataMotion Logo

DataMotion is a company that focuses on secure data and document exchange, operating within the API and cybersecurity sectors. The company offers services such as secure messaging, document exchange, and email services, all of which are designed to protect sensitive data during transmission. These services are primarily utilized by the financial services, healthcare, and public sectors. DataMotion was formerly known as CertifiedMail. It is based in Florham Park, New Jersey.


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