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Israeli certificate authority and digital trust company providing electronic signature, secure identification, and SSL certificate services.

Last updated September 28, 2026

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Overview

Comsign Ltd. (Hebrew: קומסיין בע"מ) is an Israeli company that develops and implements electronic signature and secure online identification tools, and is a provider of SSL certificates. It is part of the Comda Group, a long-established player in strong authentication and electronic signature. Comsign was founded in 2000 by Comda Ltd. to deliver PKI (public key infrastructure) services in the cloud, building on knowledge acquired from Verisign. In its early years, Comsign was part of Verisign's global VTN (Verisign Trusted Network). The company is headquartered in Tel Aviv and has branches in Haifa, Jerusalem, and Be'er Sheva. It employs about 50 people, while the entire group employs around 140. Comsign's core business is acting as a certificate authority (CA) and trusted service provider. On 13 February 2003, it received approval from the Israeli Ministry of Justice to serve as an official Israeli certificate authority for issuing licensed, government-supervised qualified electronic signatures under the Electronic Signature Law and its regulations. It also holds International Trusted Root CA status recognized by global software companies such as Microsoft, Apple, and Adobe, and is recognized under the European eIDAS regulation for digital identification and digital signatures. In 2020, its Signer-1 signature server was approved as a QSCD (Qualified Signature Creation Device) under eIDAS. In 2023, the company opened issuance offices for international signatures in Estonia and Cyprus. Comsign's products and services are used across healthcare, legal, government, and financial sectors. It has implemented digital prescription projects for all health funds in Israel, enabled lawyers to use electronic signatures with the government's "Net HaMishpat" system (including remote client signing with secure identification), developed a secure signing desktop for notaries, allowed Ministry of Defense suppliers to submit bids electronically, and supports electronic signatures for VAT reporting to the Israel Tax Authority, reports by public companies to the Israel Securities Authority via the Magna system, and architectural plan submissions to authorities. As of 2023, the chairman of the board is Ze'ev Shetach, founder of the company and owner of Comda Ltd. The CEO is Yair Eisenstein, who began his career in the company's customer service in 2016 and was appointed CEO in 2022. Under his leadership, Comsign joined the global FIDO organization and received international recognition under the European eIDAS standard for the company and its cloud signature product.

History

Comsign was founded in 2000 by Comda Ltd., a veteran company in the fields of strong authentication and electronic signature. The company was established to produce PKI (identification and electronic signature) services in the cloud, based on knowledge acquired from Verisign. In its early years, Comsign was part of Verisign's global network called VTN (Verisign Trusted Network). On 13 February 2003, Comsign received approval to serve as an official Israeli certificate authority (CA) from the Ministry of Justice for issuing licensed, government-supervised qualified electronic signatures under the Electronic Signature Law and its regulations. In 2011, the Registrar of Certificate Authorities announced that it had fined the company about 140,000 NIS for two violations of electronic signature directives. Comsign holds International Trusted Root CA approval from global software companies such as Microsoft, Apple, and Adobe. The company is recognized as a certificate authority under the European regulations and the 2014 directive known as eIDAS, the European standard for digital identification and digital signature. In 2020, the company's Signer-1 signature server was approved as a QSCD, a secure approved device for creating qualified signatures under the mandatory European eIDAS standard. In 2023, the company opened issuance offices for international signatures in Estonia and Cyprus. The company is headquartered in Tel Aviv and has branches in Haifa, Jerusalem, and Be'er Sheva. It employs about 50 people, while the entire group employs around 140. As of 2023, the chairman of the board is Ze'ev Shetach, founder of the company and owner of Comda Ltd. The CEO is Yair Eisenstein, who began his career in the company's customer service in 2016 and was appointed CEO in 2022. Eisenstein integrated Comsign as a member of the global FIDO organization. During his tenure, Comsign received international recognition under the European eIDAS standard for the company and its cloud signature product. Comsign has carried out projects in various sectors. In healthcare, it implemented a digitization project and transition from paper prescriptions to digital prescriptions by applying electronic signatures on prescriptions in all health funds. In the legal field, Comsign enabled lawyers to use electronic signatures with the government's "Net HaMishpat" website, including the ability for lawyers' clients to sign remotely with secure client identification, and for in-office applications such as signing contracts and agreements between parties. It also developed a desktop for notaries that enables secure signing. Comsign enabled Ministry of Defense suppliers to submit bids for tenders via electronic signature through a website, instead of submitting paper envelopes or boxes to a tender box. VAT reports to the Tax Authority by representatives (accountants) are done using electronic signatures. Similarly, reports by public companies to the Securities Authority are done via the internet with digital signatures using the Magna system. Architects also submit plans to authorities with electronic signatures issued by Comsign.

  • 2023

    Opened issuance offices for international signatures in Estonia and Cyprus.

  • 2022

    Yair Eisenstein appointed CEO.

  • 2020

    Signer-1 signature server approved as QSCD under eIDAS.

  • 2016

    Yair Eisenstein began working in the company's customer service.

  • 2011

    Fined about 140,000 NIS by the Registrar of Certificate Authorities for two violations of electronic signature directives.

  • 2003

    On 13 February, approved as an official Israeli certificate authority by the Ministry of Justice.

  • 2000

    Comsign founded by Comda Ltd. to provide cloud PKI services based on knowledge from Verisign.

Products and positioning

Trusted certificate authority and digital signature provider for enterprises, government, and regulated sectors in Israel and internationally.

  • Signer-1 signature server

    Approved as QSCD under eIDAS in 2020.

  • Cloud signature product

    Received international recognition under eIDAS.

  • SSL certificates

    Provided as part of secure online identification services.

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