Company lists · Data refreshed September 2026
Top 25 Certificate authority companies worldwide
RevenueBase identified 478 certificate authority companies worldwide as of September 2026 and tracks 6,951 professional contacts across them, including 1,410 with verified work emails. Brazil is the largest market and Sao Paulo the largest hub.
This list covers certificate authority companies worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 2026. Country and city lists for certificate authority companies follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest certificate authority companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 662 contacts → | ||||
Indirect evidence “Privy, formerly PrivyID, is revolutionizing the way people are identified in cyberspace and the way the online transaction is carried out.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 494 contacts → | ||||
Indirect evidence “Somos a Soluti, uma das principais provedoras globais de soluções em identidade digital, com um portfólio diversificado e tecnologias de ponta.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 448 contacts → | ||||
Indirect evidence “GlobalSign is the leading provider of trusted identity and security solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 167 contacts → | ||||
Indirect evidence “Quiénes Somos?” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 162 contacts → | ||||
Strong evidence “VIDA is a Certificate Authority (CA), registered and recognized by the Ministry of IT & Communications, Indonesia (or Kominfo).” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 145 contacts → | ||||
Partial evidence “n)Code Solutions, set up in 2003, is a Certifying Authorities licensed by Controller of Certifying Authorities in India with the enforcement of IT Act Since then,(n)Code has…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 140 contacts → | ||||
Strong evidence “We are a Certification Authority specializing in the development and marketing of high-tech solutions, a provider of data security applications and services for 25 years.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 125 contacts → | ||||
Partial evidence “A CCN Certificadora é uma Autoridade Certificadora criada para simplificar e modernizar o acesso à certificação digital no Brasil.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 118 contacts → | ||||
Partial evidence “La Empresa Nacional de Certificación Electrónica, E-certchile, fue creada en 2002 por la Cámara de Comercio de Santiago (CCS) con el apoyo de CORFO.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 84 contacts → | ||||
Partial evidence “Somos una empresa de Certificación Digital para Firma Electrónica, Soluciones de Documentos y Transacciones Digitales Legales y Seguridad de la Información.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 83 contacts → | ||||
Partial evidence “A ACDIGITAL é uma Autoridade Certificadora com sede em Porto Alegre/RS, presente no mercado desde 2011.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 82 contacts → | ||||
Indirect evidence “Founded in 2002, SSL.com is a Digital Trust Platform securing online communications, applications, and digital content through PKI solutions and identity trust services.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 82 contacts → | ||||
Strong evidence “POS DIGICERT, was incorporated in February 1998 to pursue its objective as the premier licensed Certification Authority (CA) in Malaysia.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 64 contacts → | ||||
Indirect evidence “TÜRKTRUST Bilgi İletişim ve Bilişim Güvenliği Hizmetleri A.Ş.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 58 contacts → | ||||
Indirect evidence “E-GÜVEN, Elektronik Bilgi Güvenliği A.Ş.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 56 contacts → | ||||
Partial evidence “IdenTrust, part of HID Global, is a leading provider of digital certificates that establish the basis for trusted identity solutions recognized by financial institutions…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 54 contacts → | ||||
Strong evidence “Established in 1997, Netrust is Asia’s first public Certificate Authority (CA) and Singapore's only IMDA-accredited CA.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 53 contacts → | ||||
Indirect evidence “In Buypass, you meet people who are proud of their work, and who are passionate about creating simple and safe solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 53 contacts → | ||||
Indirect evidence “At Vintegris we are a Qualified Trust Service Provider (QTSP) offering businesses with the right solution to digital transformation and the implementation of paperless technology…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 50 contacts → | ||||
Indirect evidence “As technology continues to evolve, the need for trusted and easily deployed digital identities grows stronger.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 50 contacts → | ||||
Partial evidence “Somos Andes Servicio de Certificación Digital S.A.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 49 contacts → | ||||
Partial evidence “A DigitalSign é uma empresa de segurança electrónica, merecendo destaque a sua actividade de Entidade Certificadora Portuguesa para a emissão de certificados digitais…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 49 contacts → | ||||
Partial evidence “Camerfirma es la autoridad de certificación digital y de firma electrónica de las Cámaras de Comercio.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 48 contacts → | ||||
Strong evidence “The SSL Store™ is one of the largest Platinum Partners of the world’s leading Certificate Authorities (CAs), including DigiCert, GeoTrust, Thawte, RapidSSL, and Sectigo (formerly…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 46 contacts → | ||||
Partial evidence “A CertFácil é uma empresa especializada em Certificação Digital, credenciada a emitir certificados digitais ICP-Brasil, tais como PF, PJ, NF-e, CT-e, SSL, todos eles essenciais à…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: certificate authority companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names certificate authority companies.
- Partial evidence
- Its own public description names part of certificate authority companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name certificate authority companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 478 certificate authority companies worldwide
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Certificate authority companies worldwide at a glance
As of Sep 19, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among certificate authority companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for certificate authority companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “certificate authority companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names certificate authority companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among certificate authority companies, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 1,410 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 19, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Certificate authority companies by location
1 lists · largest firstEvery Certificate authority companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names certificate authority companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many certificate authority companies are there worldwide?
RevenueBase identified 478 certificate authority companies worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
PRIVY, headquartered in Jakarta Selatan Dki Jakarta, tops this list with the largest team on record.
Which country has the most certificate authority companies?
Brazil leads with 285 companies. Every certificate authority companies list by country and city is linked on this page.
Which city has the most certificate authority companies?
Sao Paulo leads with 48 headquartered companies, followed by Rio De Janeiro (19) and Belo Horizonte (15).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,410 verified decision-maker contacts tracked across these 478 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.