Stewart Butterfield

Co-Founder at Slack Technologies, Inc.

Stewart Butterfield

Stewart Butterfield

Co-Founder at Slack Technologies, Inc.

Career Highlights

Ludicorp Research & Development Ltd.
Slack Technologies (Venture Capital)
Slack Technologies, Inc.

RelSci Relationships


Primary Location

Vancouver/BC Metro

Number of Boards






Number of Awards


RelSci Relationships are individuals Stewart Butterfield likely has professional access to. A relationship does not necessarily indicate a personal connection.

Co-Founder at Slack Technologies, Inc.

Relationship likelihood: Strong

Partner at Accel Partners LLC

Relationship likelihood: Strong

Co-Founder & Chief Executive Officer at Cozy Services LLC

Relationship likelihood: Strong

Partner at Andreessen Horowitz LLC

Relationship likelihood: Strong

Chief Financial Officer at Slack Technologies, Inc.

Relationship likelihood: Strong

Founder at 2bkco, Inc.

Relationship likelihood: Strong

Professional at Slack Technologies, Inc.

Relationship likelihood: Strong

General Partner at Google Ventures

Relationship likelihood: Strong

Co-Founder & Executive Chairman at MAD Apparel, Inc.

Relationship likelihood: Strong

Co-Founder & General Partner at The Social+Capital Partnership LLC

Relationship likelihood: Strong

Paths to Stewart Butterfield
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Stewart Butterfield
Co-Founder at Slack Technologies, Inc.
Family Members
Founder at 2bkco, Inc.

2bkco, Inc. provides an application that allows people to annotate places in the real world and leave notes tagged. It offers notemap services in place that include Disneyland, London Life, Punny Business Names or Historic Places of the Great Plains. The company was founded by Caterina Fake in 2011 and is headquartered in San Francisco, CA.

Master of Philosophy
Class of 1998

The University of Cambridge (informally known as Cambridge University or Cambridge) is a public research university located in Cambridge, United Kingdom. It is the second-oldest university in the English-speaking world (after the University of Oxford), and the seventh-oldest in the world.

BA in Philosophy
Class of 1996

The University of Victoria offers innovative programs for more than 20,000 students. Dynamic, hands-on learning, research that makes a vital impact, and discovery and innovation in Canada’s most extraordinary academic environment provide an Edge that can’t be found anywhere else.


The Business Roundtable advocates public policies that ensure economic growth. It considers public policy issues which contains groups like the construction users anti-inflation roundtable, a group devoted to containing construction costs; and the labor law study committee, made up of labor relations executives of major companies. The Business Roundtable was founded in 1972 and is headquartered in Washington, DC.

Career History
Chief Executive Officer & Co-Founder
2013 - Current

Slack Technologies (Venture Capital) invests in companies located in the US. The firm invests in software and technology companies. They provides financing for seed and early stage capital requirements.

2009 - Current

Slack is a platform that enables team communications in one place. The company’s platform provides real-time messaging, archiving, and searching services for various teams. Slack was founded by Daniel Stewart Butterfield, Serguei Mourachov, Eric Costello and Callum James Henderson-Begg and is headquartered in San Francisco, CA.

General Manager-Flickr Division
2005 - 2008

Yahoo!, Inc. is a global technology company, which delivers personalized, including search, content, and communications tools on the web and on mobile devices. The company provides a variety of products and services, many of them personalized, including search, content, and communications tools-all daily habits for hundreds of millions of users, on the Web and on mobile devices. The majority product offerings are available in more than 45 languages and in 60 countries, regions and territories. The company's offerings to users include, is a starting point that brings together the most relevant content and functionality from across the Web, including original Yahoo! content. It offers a majority of these services free of charge to users around the world. Yahoo! Search is available free to users and often serves as the starting point from which they navigate the Internet to find and discover information that matters to them. It provides users with a free search capability, offering rich search results ranked and organized based on relevance to each user's search query. It currently offers Yahoo! Search experiences and applications across connected devices, including PCs, tablets and mobile phones. Yahoo! News provides original, premium, partner, and syndicated news via text, photos, and video to engage users with wide-ranging, up-to-the-minute coverage and analysis into topical news events. Yahoo! Sports serves one of the largest audiences of digital sports enthusiasts in the world. It is anchored by Fantasy Sports, editorial reporting, real-time scores, statistics and breaking news, coverage of the biggest global sports events, and premium college sports coverage through Rivals publisher network. Yahoo! Finance provides a comprehensive set of financial data, information, and tools that helps users make informed financial decisions. It offers mobile solutions, including dedicated Yahoo! Finance iPhone and Android applications and MarketDash for iPad. Yahoo! Entertainment and Lifestyles is a collection of properties focused on emerging trends and information in popular culture, women's issues, and media. Yahoo! omg!, Movies, TV and Music are leading destinations for celebrity gossip, movie, music, and TV premieres, and awards coverage. Yahoo Shine! is targeted to women and provides tips, features and in-depth analysis in areas such as health, fashion, careers and parenting. Yahoo! Video provides original, premium and third-party news, finance, sports, entertainment, and lifestyle video content distributed in contextually relevant experiences across the Yahoo! network. Yahoo! Video includes Yahoo! Screen, a video destination site where videos from across the Yahoo! network are aggregated and watched. Yahoo! Toolbar is a Web browser add-on that conveniently enables users to access and preview Yahoo! Properties and third-party content via applications from anywhere on the Web. In addition to bringing together personalized content and information consumed by hundreds of millions of users, it also provide communications tools to connect the world, include: Yahoo! Mail, Yahoo! Messenger, Yahoo! Groups, Yahoo! Answers, Flickr, Mobile & Emerging Products, IntoNow from Yahoo! and Connected TV, which provides a wide range of communication and social services to users and small businesses across a variety of devices and through its broadband Internet access partners enable users to organize into groups and share knowledge, common interests, and photos. Yahoo! was founded by Jerry Chih-Yuan Yang and David Filo in January 1994 and is headquartered in Sunnyvale, CA.

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Hero Health, Inc. provides medical advisory platform. Its application monitor and notifies users when it's pill time. The company is headquartered in New York, NY.

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Netlify, Inc. develops websites and apps. It specializes in static web hosting, continuous deployment, CDN and web hosting, build automation, web performance and content management. The company was founded by Mathias Biilmann Christensen and Christian Bach in 2015 and is headquartered in San Francisco, CA.

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CTRL-Labs Corp. NY builds transformative brain-machine interface spans research. The company was founded by Thomas Reardon, Patrick Kaifosh and Timothy Machado in 2015 and is headquartered in New York, NY.

Public Holdings
Restricted data only for RelSci Professional users.
Awards & Honors
Rank #25
Vanity Fair Magazine - New Establishment, Disrupters
TIME - 100 Most Influential People in the World
TIME - 100 Most Influential People in the World
2018 World Economic Forum Annual Meeting

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