Request page removalAbout Stewart Butterfield
Stewart Butterfield is an entrepreneur, an angel investor and a board member. They did their Masters from University of Cambridge in 1998. Their journey in the startup ecosystem started in 2004 through Flickr. Stewart Butterfield has founded 3 companies. They are currently acting as the, and as the co-founder of Slack Fund. Prior to this, Stewart Butterfield co-founded Slack and Flickr. As an angel investor, Stewart Butterfield has a portfolio of 34 companies, focusing primarily on sectors like Enterprise Applications, Enterprise Infrastructure and 12 more sectors. They invest in companies across United States, Canada and 6 more. Their most notable investments include companies like Carta and Netlify. Stewart Butterfield is currently serving as a board member at NYSE.
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Stewart Butterfield's Investments
Stewart Butterfield has invested in 34 companies. Their most recent investment was in Centralize (Seed Round) on Jul 29, 2026. Their investments are primarily in Enterprise Applications, Enterprise Infrastructure and 12 more sectors. Their investment portfolio include companies in United States, Canada and 6 more.Here is the list of recent investments by Stewart Butterfield:
Date | Company | Round | Round Amount | Co-Investors |
|---|---|---|---|---|
Jul 29, 2026 | Seed | Undisclosed | ||
May 19, 2026 | Series A | $75M | and 14 more | |
Oct 29, 2025 | Series A | $20.1M | and 8 more | |
Jul 17, 2025 | Series A | $200M |
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Stewart Butterfield's Portfolio Exits
Here is the list of top portfolio exits by Stewart Butterfield:
Company | Description | Location | Total Funding | Founded Year | Exit Type | Exit Date |
|---|---|---|---|---|---|---|
Online marketplace offering multi-category products from independent designers | Dublin (Ireland) | $98M | 2005 | IPO | Apr 16, 2015 | |
Provider of platform connecting businesses with freelance graphic design professionals | $45M | 2008 | Acquisition | Oct 05, 2020 | ||
Rental management software | San Francisco (United States) | $18.5M | 2012 | Acquisition | Nov 08, 2018 | |
Social News Digest and Reader | Vancouver (Canada) | - | 2010 | Acquisition | Jan 19, 2012 |
Stewart Butterfield's Portfolio Unicorns
Here is the list of top portfolio unicorns by Stewart Butterfield:
Company | Short Description | Total Funding | Founded Year | Current Stage | Location |
|---|---|---|---|---|---|
Software-based equity management solutions | $1.16B | 2012 | Series G | San Francisco | |
Provider of a platform for web application development and deployment | $212M | 2013 | Series D | San Francisco |
Stewart Butterfield's Founded Companies
Here are the details of all founded companies by Stewart Butterfield:
Company | Short Description | Total Funding | Founded Year | Current Stage | Location |
|---|---|---|---|---|---|
Developer of communication software for team collaboration and project management | $1.22B | 2009 | Acquired | San Francisco | |
Online photography community empowering photographers with tools, inspiration, and connection | - | 2004 | Acquired | United States | |
Venture capital firm investing in software companies | - | 2015 | Unfunded | San Francisco |
Stewart Butterfield's Board Memberships
Stewart Butterfield has 1 current board membership in NYSE.Here is the detail of this board membership:
Company | Description | Total Funding | Current Stage | Membership Status | Appointment Date | Cessation Date |
|---|---|---|---|---|---|---|
Stock exchange | - | Public | CURRENT | - | - |
Stewart Butterfield's Top News
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Connected closed-loop adherence platform Hero launches to consumers with $12M backingMobiHealthNews•Oct 16, 2018•Hero, Brainchild, Third Kind Venture Capital, BoxGroup and 9 others
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Fintech Startup eShares Secures $39.1 Million - NewsCenter.ioNewsCenter•Oct 07, 2017•Carta, EShares, Menlo Ventures, Social Capital and 1 other
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On-Demand Food Delivery Service Sprig Has Raised $45 MillionTechCrunch+•Apr 15, 2015•Sprig, Greylock Partners, Social Capital, Accel and 18 others
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