Accel

Tessian Limited is a provider of an advanced email security platform that addresses human error in data handling, significantly reducing the risk of data loss. The platform employs machine learning and artificial intelligence to identify when emails are mistakenly sent to unintended recipients, alerting the sender in real time to allow corrections. It features tools such as CheckRecipient Guardian and CheckRecipient RuleBuilder, which enhance organizational control over email communications. Tessian’s technology is designed to analyze email networks and prevent the transmission of sensitive information to the wrong individuals, thereby safeguarding against threats like data exfiltration, business email compromise, and phishing attacks. The company serves various sectors, including legal services, healthcare, investment management, and technology. Founded in 2013 and headquartered in London, Tessian also has an office in San Francisco and is supported by prominent investors.

Tessian Limited is a provider of an advanced email security platform that addresses human error in data handling, significantly reducing the risk of data loss. The platform employs machine learning and artificial intelligence to identify when emails are mistakenly sent to unintended recipients, alerting the sender in real time to allow corrections. It features tools such as CheckRecipient Guardian and CheckRecipient RuleBuilder, which enhance organizational control over email communications. Tessian’s technology is designed to analyze email networks and prevent the transmission of sensitive information to the wrong individuals, thereby safeguarding against threats like data exfiltration, business email compromise, and phishing attacks. The company serves various sectors, including legal services, healthcare, investment management, and technology. Founded in 2013 and headquartered in London, Tessian also has an office in San Francisco and is supported by prominent investors.

Tessian Limited is a provider of an advanced email security platform that addresses human error in data handling, significantly reducing the risk of data loss. The platform employs machine learning and artificial intelligence to identify when emails are mistakenly sent to unintended recipients, alerting the sender in real time to allow corrections. It features tools such as CheckRecipient Guardian and CheckRecipient RuleBuilder, which enhance organizational control over email communications. Tessian’s technology is designed to analyze email networks and prevent the transmission of sensitive information to the wrong individuals, thereby safeguarding against threats like data exfiltration, business email compromise, and phishing attacks. The company serves various sectors, including legal services, healthcare, investment management, and technology. Founded in 2013 and headquartered in London, Tessian also has an office in San Francisco and is supported by prominent investors.

Tessian Limited is a provider of an advanced email security platform that addresses human error in data handling, significantly reducing the risk of data loss. The platform employs machine learning and artificial intelligence to identify when emails are mistakenly sent to unintended recipients, alerting the sender in real time to allow corrections. It features tools such as CheckRecipient Guardian and CheckRecipient RuleBuilder, which enhance organizational control over email communications. Tessian’s technology is designed to analyze email networks and prevent the transmission of sensitive information to the wrong individuals, thereby safeguarding against threats like data exfiltration, business email compromise, and phishing attacks. The company serves various sectors, including legal services, healthcare, investment management, and technology. Founded in 2013 and headquartered in London, Tessian also has an office in San Francisco and is supported by prominent investors.

Impermium is a cybersecurity technology startup focused on protecting internet sites from account hijacking and malicious user behavior. Over its three-year history, the company has secured more than 1.5 million sites and processed over 8 billion transactions. Impermium's advanced risk-evaluation platform enhances account management by detecting fraudulent registrations, compromised logins, and risky transactions in real-time. Utilizing a combination of machine learning, statistical anomaly detection, and a proprietary database of known malicious actors, the platform effectively prevents fraudulent user account registrations at high transaction rates. By monitoring the web in real-time, Impermium enables organizations to combat user-generated spam, account hacking, and other forms of online fraud and abuse.

[Xoopit](https://www.xoopit.com/) is an email organizational tool. Xoopit has invented an email and web indexing architecture similar to a web search engine to help its users retrieve meaningful content from their archived email. Xoopit features: - email content search - add links, maps, etc. from the web to a mail being composed - exposes information about all senders on a thread: profile pics, recent conversations and attachments and media they've sent. testing

Zimbra is a developer of open-source email and collaboration software tailored for service providers, enterprises, and government entities. Founded in 2003 and headquartered in Frisco, Texas, with additional offices in locations such as San Mateo, London, Tokyo, Singapore, and Pune, Zimbra offers solutions designed to address the challenges posed by outdated communication systems. Its main products include the Zimbra Collaboration Server, which provides email, calendar, and collaboration tools, and Zimbra Desktop, which consolidates information from various email accounts. Zimbra's software enables organizations to manage, control, and organize their data while ensuring security and privacy through an open platform that encompasses features like contacts, calendars, tasks, instant messaging, and file sharing.

Brightmail was an e-mail filtering company in the United States. The company specialized in anti-spam products designed to protect email networks of businesses, government agencies, and service providers, by blocking unsolicited bulk email. The company was [acquired](http://www.symantec.com/press/2004/n040519.html) by [Symantec](/organization/symantec) on May 9, 2004.