Founded in 2012 with the mission to provide the most secure and seamless authentication experience for enterprises and users.

Callsign’s Intelligence Driven Authentication Solution enables more informed and truly adaptive access control decisions, putting enterprises and their users back in control.

Today Callsign is deployed to hundreds of thousands of users globally. With enterprise clients, financial institutions and consumer-facing digital services and include some of the world’s largest banks, such as Lloyds Bank and Deutsche Bank.

In July 2017, Callsign raised $35 million in Series A investment led by global venture capital firm Accel. Others who participated in the round include PTB Ventures, Allegis Capital, and NightDragon Security.

With this latest investment, Callsign will expand across the US and the Far East, with plans to open offices in both the Bay Area and New York City this year.

Microsoft was ranked seventh on the Cybersecurity 500 list and comes in fourth on our list of top 10 cybersecurity companies. Microsoft is classified under the data centre to endpoint protection sector. The company provides numerous offerings to counter cybercrime starting from its prime Windows Defender product to its cloud-based Azure and office 365 security compliance centres.

Imperva protects you from cybercriminals – be they external actors or malicious insiders. Imperva protects cloud applications, websites and applications, files, SharePoint systems, databases and big data repositories from both theft and ever-evolving extortion attacks like DDoS and ransomware.

Our technology provides granular visibility into how users access data and applications and use sophisticated user tracking and classification to detect and block cyber attacks, botnets, unauthorized users and malicious insiders. The Imperva Defense Center research team – comprised of some of the world’s leading experts in data and application security – roots out new attack methods and stops them before they reach you.

So whether your critical digital assets are in the cloud or on-premises, in an application or in a database, you can be confident that Imperva will protect them from both the profit-driven cybercrime industry and nation-state actors.