Sequoia Capital

Tessian Limited is a company that specializes in email security software designed to mitigate risks associated with human error and data loss. Founded in 2013 and headquartered in London, the company offers advanced solutions that leverage machine learning and artificial intelligence. Key products include CheckRecipient Guardian, which alerts users in real-time if emails are being sent to unintended recipients, and CheckRecipient RuleBuilder, which allows organizations to easily create and enforce email communication policies. The platform analyzes email networks to prevent sensitive information from being misdirected, thereby protecting clients in various sectors, including legal services, healthcare, investment banking, and technology. Tessian aims to enhance security while ensuring minimal disruption to employees' workflows, empowering them to work efficiently without compromising data integrity.

Tessian Limited is a company that specializes in email security software designed to mitigate risks associated with human error and data loss. Founded in 2013 and headquartered in London, the company offers advanced solutions that leverage machine learning and artificial intelligence. Key products include CheckRecipient Guardian, which alerts users in real-time if emails are being sent to unintended recipients, and CheckRecipient RuleBuilder, which allows organizations to easily create and enforce email communication policies. The platform analyzes email networks to prevent sensitive information from being misdirected, thereby protecting clients in various sectors, including legal services, healthcare, investment banking, and technology. Tessian aims to enhance security while ensuring minimal disruption to employees' workflows, empowering them to work efficiently without compromising data integrity.

Barracuda Networks is a cybersecurity company that specializes in designing and developing solutions for email and web security. Founded in 2002 and headquartered in Campbell, California, with additional offices globally, the company provides a range of products aimed at protecting organizations from various security threats. Its offerings include the Barracuda Spam Firewall, which safeguards email servers from spam and malicious attacks, and the Barracuda Web Filter, which enforces internet usage policies. Other key products include the Barracuda Message Archiver for email archiving, the Barracuda Load Balancer for server management, and the Barracuda Backup Service for data backup and disaster recovery. Barracuda Networks serves a diverse clientele across industries such as education, government, healthcare, and finance, distributing its products through a network of distributors both domestically and internationally. The company’s solutions are designed to provide comprehensive protection against spam, spyware, viruses, and other IT infrastructure threats, enabling organizations to enhance their network performance and safeguard their data.

Corvigo develops email filtering solutions based on its proprietary Intent based filtering (IBF) technology. Its IBF technology uses artificial intelligence to determine the intent of an email and then act upon that intent. The company’s products include MailGate, a Linux-based anti-spam appliance that filters junk emails and passes legitimate messages to servers for normal processing; and Request For Proposal, a junk email solution for companies. It serves schools, universities, colleges, law firms, carriers, and organizations. Corvigo sells its products through resellers. The company was founded in 2002 and is based in Redwood City, California.