Greylock

Greylock, established in 1965, is a venture capital firm headquartered in Menlo Park, California, with additional offices in San Francisco and Wellesley, Massachusetts. The firm specializes in investing in consumer and enterprise software companies at various stages, from seed to growth. Greylock focuses on backing entrepreneurs who define new markets, with notable investments including Airbnb, Facebook, and LinkedIn. The firm typically invests between $0.05 million and $200 million per company, aiming to take a board seat in its portfolio companies. Greylock's investment focus spans across the United States, India, China, Europe, and Israel.

Jacob Andreou

General Partner

Joseph Ansanelli

Partner

Jerry Chen

General Partner

Gerald Chen

Partner

Mike Duboe

General Partner

Roger Evans

Partner

Tom Frangione

COO

Bob Henderson

Special Limited Partner

Christine Kim

Partner

Saam Motamedi

Partner

Corinne Riley

Partner

Jason Risch

Investor

Seth Rosenberg

Investor

Dave Strohm

Partner

Don Sullivan

Administrative Partner

David Thacker

General Partner

Past deals in Email

Abnormal Security

Series D in 2024
Abnormal Security Corporation specializes in cloud-based email security solutions for Microsoft Office 365 and G Suite, aiming to protect organizations from targeted email attacks. Founded in 2018 and based in San Francisco, the company employs a data science approach to enhance its email protection capabilities. Its platform offers a range of services, including inbound email protection, detection of email account compromises, and responses to various threats. Abnormal Security addresses issues such as credential phishing, internal phishing, impersonation of employees and executives, vendor account compromise, as well as invoice and payment fraud. The company serves diverse sectors, including financial services, healthcare, and utilities, providing comprehensive solutions to safeguard against email-related risks that can lead to significant financial and reputational damage.

Abnormal Security

Series C in 2022
Abnormal Security Corporation specializes in cloud-based email security solutions for Microsoft Office 365 and G Suite, aiming to protect organizations from targeted email attacks. Founded in 2018 and based in San Francisco, the company employs a data science approach to enhance its email protection capabilities. Its platform offers a range of services, including inbound email protection, detection of email account compromises, and responses to various threats. Abnormal Security addresses issues such as credential phishing, internal phishing, impersonation of employees and executives, vendor account compromise, as well as invoice and payment fraud. The company serves diverse sectors, including financial services, healthcare, and utilities, providing comprehensive solutions to safeguard against email-related risks that can lead to significant financial and reputational damage.

Gem

Series C in 2021
Gem is a comprehensive recruiting platform that integrates seamlessly with LinkedIn, Gmail, Outlook, and applicant tracking systems, designed to enhance the efficiency of talent acquisition teams. It allows recruiters to compile targeted lists, find email addresses, and automate follow-up communications, significantly improving response rates and saving time. The platform provides visibility into the entire hiring funnel by automatically tracking each touchpoint and offering insights into potential biases related to gender, race, and ethnicity throughout the interview process. This data-driven approach enables teams to collaborate effectively, ensuring that no candidate is contacted multiple times. Additionally, managers gain insights into their team's recruiting pipeline, with all interactions and activities synchronized for optimal data integrity.

Abnormal Security

Series B in 2020
Abnormal Security Corporation specializes in cloud-based email security solutions for Microsoft Office 365 and G Suite, aiming to protect organizations from targeted email attacks. Founded in 2018 and based in San Francisco, the company employs a data science approach to enhance its email protection capabilities. Its platform offers a range of services, including inbound email protection, detection of email account compromises, and responses to various threats. Abnormal Security addresses issues such as credential phishing, internal phishing, impersonation of employees and executives, vendor account compromise, as well as invoice and payment fraud. The company serves diverse sectors, including financial services, healthcare, and utilities, providing comprehensive solutions to safeguard against email-related risks that can lead to significant financial and reputational damage.

Gem

Series B in 2020
Gem is a comprehensive recruiting platform that integrates seamlessly with LinkedIn, Gmail, Outlook, and applicant tracking systems, designed to enhance the efficiency of talent acquisition teams. It allows recruiters to compile targeted lists, find email addresses, and automate follow-up communications, significantly improving response rates and saving time. The platform provides visibility into the entire hiring funnel by automatically tracking each touchpoint and offering insights into potential biases related to gender, race, and ethnicity throughout the interview process. This data-driven approach enables teams to collaborate effectively, ensuring that no candidate is contacted multiple times. Additionally, managers gain insights into their team's recruiting pipeline, with all interactions and activities synchronized for optimal data integrity.

Abnormal Security

Series A in 2019
Abnormal Security Corporation specializes in cloud-based email security solutions for Microsoft Office 365 and G Suite, aiming to protect organizations from targeted email attacks. Founded in 2018 and based in San Francisco, the company employs a data science approach to enhance its email protection capabilities. Its platform offers a range of services, including inbound email protection, detection of email account compromises, and responses to various threats. Abnormal Security addresses issues such as credential phishing, internal phishing, impersonation of employees and executives, vendor account compromise, as well as invoice and payment fraud. The company serves diverse sectors, including financial services, healthcare, and utilities, providing comprehensive solutions to safeguard against email-related risks that can lead to significant financial and reputational damage.

Agari

Series E in 2018
Agari is a security company focused on protecting businesses from phishing and social engineering attacks. It employs advanced data science and various signals to defend against threats such as business email compromise, supply chain fraud, spear phishing, and account takeovers. By addressing these vulnerabilities, Agari helps reduce business risk and restore trust in email communications. Additionally, the company safeguards outbound emails from enterprises to customers, enhancing email deliverability and maintaining brand integrity. Through its data-driven security platform, Agari aims to eliminate email as a viable channel for cyber-attacks, ensuring safer interactions for both businesses and consumers.

Agari

Series D in 2016
Agari is a security company focused on protecting businesses from phishing and social engineering attacks. It employs advanced data science and various signals to defend against threats such as business email compromise, supply chain fraud, spear phishing, and account takeovers. By addressing these vulnerabilities, Agari helps reduce business risk and restore trust in email communications. Additionally, the company safeguards outbound emails from enterprises to customers, enhancing email deliverability and maintaining brand integrity. Through its data-driven security platform, Agari aims to eliminate email as a viable channel for cyber-attacks, ensuring safer interactions for both businesses and consumers.

Handwriting.io

Series A in 2015
Handwriting.io is a technology company that offers a platform for digital handwriting, allowing businesses to integrate personalized handwritten messages into their mobile apps, desktop applications, and websites. By creating digital versions of handwriting, the company enables users to send printed notes or personalized emails that enhance communication and strengthen brand identity. This platform not only helps businesses increase sales but also fosters more authentic interactions with customers, employees, and the media. Additionally, Handwriting.io provides a messaging solution that allows for customized, animated messages featuring unique handwriting styles and effects, transforming the chat experience with real 3D handwriting.

Cloze

Seed Round in 2012
Cloze, Inc. is a relationship management platform that consolidates various professional connections, including emails, social networks, and contact information, into a single, organized view. Founded in 2012 and based in Wellesley, Massachusetts, Cloze automatically updates users' address books and manages their interactions with contacts and companies, eliminating the need for manual data entry. The platform captures and organizes all communication history—such as emails, phone calls, meetings, and social media interactions—while employing advanced data science to highlight important relationships and prompt users to engage with their network. By providing a comprehensive overview of every interaction, Cloze enhances users' ability to maintain and strengthen their professional relationships efficiently.

Agari

Series A in 2011
Agari is a security company focused on protecting businesses from phishing and social engineering attacks. It employs advanced data science and various signals to defend against threats such as business email compromise, supply chain fraud, spear phishing, and account takeovers. By addressing these vulnerabilities, Agari helps reduce business risk and restore trust in email communications. Additionally, the company safeguards outbound emails from enterprises to customers, enhancing email deliverability and maintaining brand integrity. Through its data-driven security platform, Agari aims to eliminate email as a viable channel for cyber-attacks, ensuring safer interactions for both businesses and consumers.

Digg

Series C in 2008
Digg, established in 2004, is a social news aggregator that curates and presents the most talked-about stories and videos from the internet. Users can discover, read, and share content across various platforms, including a website, mobile applications, and daily emails. Digg also offers advertising services for brands and consumers. Headquartered in New York, Digg operates as a subsidiary of BuySellAds.com, Inc.

Digg

Series B in 2006
Digg, established in 2004, is a social news aggregator that curates and presents the most talked-about stories and videos from the internet. Users can discover, read, and share content across various platforms, including a website, mobile applications, and daily emails. Digg also offers advertising services for brands and consumers. Headquartered in New York, Digg operates as a subsidiary of BuySellAds.com, Inc.

Constant Contact

Venture Round in 2006
Constant Contact is a digital marketing platform that provides a suite of services aimed at helping small businesses and nonprofit organizations enhance their online presence and customer engagement. Founded in 1998, the company specializes in email marketing, social media marketing, event marketing, and online surveys. Its user-friendly and affordable tools allow over 500,000 clients to create personalized communications that resonate with their audiences across various digital channels. By simplifying the marketing process, Constant Contact enables small organizations to build professional brands, attract customers, and foster stronger relationships. The company also collaborates with leading providers in the online marketing space and encourages developers to engage with its API and contribute to its App Marketplace, further extending its capabilities.

Digg

Series A in 2005
Digg, established in 2004, is a social news aggregator that curates and presents the most talked-about stories and videos from the internet. Users can discover, read, and share content across various platforms, including a website, mobile applications, and daily emails. Digg also offers advertising services for brands and consumers. Headquartered in New York, Digg operates as a subsidiary of BuySellAds.com, Inc.

CipherTrust

Series B in 2004
CipherTrust, Inc. specializes in providing comprehensive messaging security solutions aimed at mitigating both inbound and outbound threats to corporate messaging systems. Founded in 2000 and headquartered in Alpharetta, Georgia, the company offers layered security measures to combat various risks, including spam, viruses, intrusions, spyware, and phishing. Additionally, CipherTrust's solutions address compliance violations and protect a range of messaging protocols, such as email, instant messaging, and file transfers. The company serves a diverse clientele, including government organizations as well as small and medium-sized businesses, and has established a global presence with offices in multiple countries, including the United States, Hong Kong, France, and Australia.
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