Primary Role
Managing Director @
27 Investments in 14 Companies

Person Details


Tim Porter is a Managing Director at Madrona Venture Group, a Seattle-based venture capital firm that invests in early-stage technology companies in the Pacific Northwest. Madrona manages nearly $1 billion, including a current $300 million Fund. Tim is focused on investments in the B2B software, infrastructure, and mobile sectors. He has been particularly interested and active in the areas of SaaS, cloud infrastructure, data analytics, security and next-generation mobile platforms. Tim joined Madrona in 2006.

He currently serves on the boards of buuteeq, Context Relevant, and Union Bay Networks; led Madrona’s investment in Jama Software; and is a board observer for Apptio, ExtraHop Networks, Impinj, 2nd Watch, Skytap, Smartsheet, Tier 3, and Z2.

He was previously on the boards of Appature (acquired by IMS Health), AppFog (acquired by CenturyLink Savvis), and Mobilisafe (acquired by Rapid7). Tim is also a member of the three-person Investment Committee for the Alliance of Angels Seed Fund.

Prior to joining Madrona, Tim was a member of Corporate Development at Microsoft, where he shared responsibilities for sourcing, structuring, and negotiating Microsoft’s acquisitions, strategic investments, and joint ventures. At Microsoft, Tim focused on enterprise software, security, and mobile and closed 14 transactions for over $850 million.

Earlier, Tim worked for broadband satellite start-up Teledesic, spending his last year there also working for Craig McCaw’s Eagle River Investments.

Tim received his bachelor’s degree in Mechanical Engineering from MIT and an MBA from the Stanford Graduate School of Business.

Jobs (4)


Board Director

Aug, 2014 - Current   (about 2 years)
Oct, 2006
Managing Director
Aug, 2003
Oct, 2006
Director, Corporate Development
Jun, 2002
Aug, 2002
Summer Associate
DateInvested InRoundDetails
Mar, 2015$20M / Series C
Dec, 2014$15M / Series A (Lead)
Nov, 2014$8M / Series A (Lead)
Oct, 2014$10M / Series C
Sep, 2014$13.5M / Series B (Lead)
May, 2014$41M / Series C
May, 2014$35M / Series E
Dec, 2013$2.05M / Seed
Nov, 2013$23M / Venture
Aug, 2013undisclosed amount / Series C
Jul, 2013$1.85M / Seed
Dec, 2012$4.2M / Venture (Lead)
Dec, 2012$26M / Series D (Lead)
Oct, 2012$10M / Series B
Sep, 2012$10M / Series B (Lead)
Aug, 2011$8M / Series B
May, 2011$14M / Series B
May, 2011$1.2M / Venture (Lead)
Mar, 2011$8.5M / Series A (Lead)
Jan, 2011$1.8M / Series A (Lead)
Sep, 2010$2.5M / Series C (Lead)
Dec, 2009$3.5M / Series A (Lead)
Apr, 2009$5.1M / Series A (Lead)
Jan, 2009$1.25M / Series B (Lead)
Dec, 2005$26.5M / Venture
Jul, 2004$22M / Series C
May, 2002$14M / Series B

Education (2)


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