Company lists · Data refreshed September 2026
Top 25 Functional encryption companies worldwide
RevenueBase identified 545 functional encryption companies worldwide as of September 2026 and tracks 5,809 professional contacts across them, including 1,520 with verified work emails. The United States is the largest market and London the largest hub.
This list covers functional encryption 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 20, 2026. Country and city lists for functional encryption 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 functional encryption companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 223 contacts → | ||||
Indirect evidence “Virtru is a global leader in data privacy and protection.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 150 contacts → | ||||
Partial evidence “For over 40 years, Futurex has been an award-winning leader and innovator in the encryption market, delivering uncompromising enterprise-grade data security solutions.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 124 contacts → | ||||
Indirect evidence “JISA Softech is a cryptography-focused information technology company based in India.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 109 contacts → | ||||
Indirect evidence “We believe people should not care about privacy.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 109 contacts → | ||||
Indirect evidence “A First Tech Tecnologia é uma empresa brasileira privada de tecnologia, especializada em Infraestrutura Criptográfica de Pagamentos e Segurança de Dados para o ecossistema…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 97 contacts → | ||||
Indirect evidence “Guardtime is a deep-tech company founded in Estonia in 2007.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 84 contacts → | ||||
Indirect evidence “Chain Reaction advances encrypted computation through purpose-built processor design.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 78 contacts → | ||||
Indirect evidence “Echoworx protects the privacy of people and businesses throughout the world by making email data protection easier.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 76 contacts → | ||||
Indirect evidence “Cryptomathic helps businesses and governments to deliver trust and confidence in the digital world.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 75 contacts → | ||||
Indirect evidence “Fortytwo Labs is a cybersecurity innovation leader, pioneering Quantum-Safe Cryptography to secure today’s digital ecosystem and future-proof against quantum computing threats.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 67 contacts → | ||||
Partial evidence “PreVeil makes encryption usable for CMMC & ITAR compliance, business and personal use.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 55 contacts → | ||||
Indirect evidence “We are an innovative software company and a trusted partner empowering companies to operate and compute encrypted data.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 54 contacts → | ||||
Partial evidence “CryptoLab is a cutting-edge startup that specializes in developing homomorphic encryption technology for Private AI, enabling data utilization without privacy concerns.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 51 contacts → | ||||
Indirect evidence “For years, security leaders have been told that preparing for post-quantum cryptography (PQC) would take years, cost millions and require deep in-house expertise.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 49 contacts → | ||||
Partial evidence “DataLocker is the leading provider of advanced encryption solutions.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 46 contacts → | ||||
Partial evidence “Vaultree is revolutionising data enablement and security through our pioneering Data-In-Use Encryption solutions.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 40 contacts → | ||||
Partial evidence “Advanced three-layer, identity based encryption ensures your data and communications stay protected, inside and outside your network.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 38 contacts → | ||||
Indirect evidence “We started as a small group of friends gathered around a big idea.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 37 contacts → | ||||
Partial evidence “Senetas (ASX:SEN) is an Australian defence technology company with 25+ years delivering certified network encryption to governments, militaries, intelligence agencies, and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 37 contacts → | ||||
Indirect evidence “Pantherun is an Indian cyber security innovator that has developed a patented data protection algorithm to transforms security for data throughputs of up to 10 Gbps, using an…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 35 contacts → | ||||
Partial evidence “Eternal Encryption.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 34 contacts → | ||||
Indirect evidence “D’Crypt is a high-value design and development house.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 34 contacts → | ||||
Partial evidence “AxCrypt is an award-wining startup company providing strong and simple encryption software.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 33 contacts → | ||||
Indirect evidence “Sunnic was formally established in 2005 and is a technology company that delivers comprehensive digital data protection solutions for Regional Banks and Government Agencies.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 32 contacts → | ||||
Indirect evidence “Under the leadership of Dr.” Source: RevenueBase Database · checked Sep 20, 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: functional encryption 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 functional encryption companies.
- Partial evidence
- Its own public description names part of functional encryption companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name functional encryption 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 545 functional encryption companies worldwide
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Functional encryption companies worldwide at a glance
As of Sep 20, 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 functional encryption 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 functional encryption companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “functional encryption 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 functional encryption 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 functional encryption 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, 1,520 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 20, 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.
Functional encryption companies by location
3 lists · largest firstEvery Functional encryption 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 functional encryption 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 functional encryption companies are there worldwide?
RevenueBase identified 545 functional encryption 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?
Virtru, headquartered in Washington, tops this list with the largest team on record.
Which country has the most functional encryption companies?
The United States leads with 144 companies, followed by the United Kingdom (39) and Canada (29). Every functional encryption companies list by country and city is linked on this page.
Which city has the most functional encryption companies?
London leads with 20 headquartered companies, followed by New York (12) and Toronto (9).
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 1,520 verified decision-maker contacts tracked across these 545 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 20, 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.