Slack

Slack Technologies, Inc. operates a business communication platform that facilitates collaboration among teams by integrating messaging, voice and video calls, and file sharing into a cohesive environment. Founded in 2009 and headquartered in San Francisco, California, the company serves a diverse clientele, ranging from Fortune 100 companies to small businesses, helping them streamline communication and enhance productivity. Slack's software is offered under a software-as-a-service model, making it accessible to organizations globally. In addition to its core platform, Slack has established the Slack Fund, which invests in early-stage technology ventures aimed at promoting more efficient workplaces. With multiple offices worldwide, Slack continues to focus on improving the working lives of individuals and teams by bringing together people, applications, and data.

Stewart Butterfield

Co-Founder

Dillon Ferdinandi

Investor

Caroline Fiegel

Investor

Liza Gurtin

Associate Product Manager, Platform

Jason Spinell

Director, Slack Fund

Past deals in Email

Courier

Series B in 2022
Courier provides an API that enables developers to manage and route user notifications across various communication channels, such as email and messaging platforms. By leveraging user engagement data and online status, the API optimizes notification delivery, ensuring that messages reach users through the most effective medium. The company's notification management software allows clients to create reusable messages that can be customized for different channels, facilitating timely and targeted communication. Over the years, Courier has adapted to technological advancements while maintaining a stable management approach, emphasizing the importance of customer success. The company has developed long-lasting relationships with its largest clients, continually collaborating to meet their evolving needs.

Nylas

Series C in 2021
Nylas, Inc. is a technology company that offers a communications platform designed to facilitate seamless integration of email, calendar, and contact data into applications. The platform provides developers with secure access to user data from various providers, including Gmail, Outlook, Microsoft Exchange, and IMAP. Nylas enables the rapid creation of embedded calendar features, bi-directional data synchronization, and event management from emails, allowing developers to integrate complex communications data efficiently. The company's solutions are built with compliance in mind, meeting standards such as SOC 2, GDPR, and HIPAA. Founded in 2013 and headquartered in San Francisco, California, Nylas also maintains additional offices in New York and Denver.

Courier

Series A in 2020
Courier provides an API that enables developers to manage and route user notifications across various communication channels, such as email and messaging platforms. By leveraging user engagement data and online status, the API optimizes notification delivery, ensuring that messages reach users through the most effective medium. The company's notification management software allows clients to create reusable messages that can be customized for different channels, facilitating timely and targeted communication. Over the years, Courier has adapted to technological advancements while maintaining a stable management approach, emphasizing the importance of customer success. The company has developed long-lasting relationships with its largest clients, continually collaborating to meet their evolving needs.

Nylas

Series B in 2018
Nylas, Inc. is a technology company that offers a communications platform designed to facilitate seamless integration of email, calendar, and contact data into applications. The platform provides developers with secure access to user data from various providers, including Gmail, Outlook, Microsoft Exchange, and IMAP. Nylas enables the rapid creation of embedded calendar features, bi-directional data synchronization, and event management from emails, allowing developers to integrate complex communications data efficiently. The company's solutions are built with compliance in mind, meeting standards such as SOC 2, GDPR, and HIPAA. Founded in 2013 and headquartered in San Francisco, California, Nylas also maintains additional offices in New York and Denver.
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