Tim Porter
InvestorFounderManaging Director at Madrona Venture Group · Board director at NewDays · Board director at Docusmart · Board director at Eclypsium
Seattle, Washington
Writes $500K – $10M checks · typically $5M
About
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. Before joining Madrona in 2006, he worked in Microsoft's Corporate Development group, where he focused on acquisitions and investments for the Server and Tools business. His investment focus centers on B2B software companies, including intelligent SaaS applications, cloud native software, next-generation developer services and platforms, machine learning and data analytics, and security. He has stated a particular interest in very early-stage companies led by founders building around differentiated technology. He has served on the boards of numerous portfolio companies and has seen several exits, including buuteeq (acquired by Priceline) and Appature (acquired by IMS Health). He also participates in the Seattle technology community through roles with angel investing and industry organizations.
Likely email· guessed from name + firm domain, not firm-published
- t•••@madrona.comreveal100% confident
Beyond investing
- Boards
- Porter serves on the board of the Washington Technology Industry Alliance.
- Communities
- Porter is a member of the three-person Investment Committee for the first Alliance of Angels Seed Fund.
From Tim's own website — common ground for a warm intro.
Board director at NewDays
Intro paths
In turn, Tim can intro founders to NewDays's investors below.
NewDays's investors · 3
Co-founders at NewDays

Board director at Docusmart
Intro paths
In turn, Tim can intro founders to Docusmart's investors below.
Docusmart's investors · 3
Co-founders at Docusmart
Board director at Eclypsium
Intro paths
In turn, Tim can intro founders to Eclypsium's investors below.
Eclypsium's investors · 21
Co-founders at Eclypsium


Experience
- Madrona Venture GroupManaging Directorcurrent2006 — presentSeattle, WA
- MicrosoftDirector, Corporate Development2003 — 2006
- Goldman SachsSummer Associate2002
- TeledesicDirector of Finance1996 — 2001
- Eagle River InvestmentsDirector of Finance2000 — 2001
Education
- Stanford University Graduate School of BusinessMBA2001 — 2003
- Massachusetts Institute of TechnologyBS, Mechanical Engineering1992 — 1996
- Racine Lutheran High School1988 — 1992
Skills & more
+6 more
ManagementM&A experienceStrategyMergersBusiness StrategyTechnologyFrom Tim's professional profile.
Deals · 8
NewDaysBoard seat
via Madrona Venture Group · filed Jun 2026 · $9M raise
DocusmartBoard seat
via Madrona Venture Group · filed Apr 2023 · $20M raise
EchodyneBoard seat
via Madrona Venture Group · filed Jun 2022 · $134.3M raise
Integris SoftwareBoard seat
via Madrona Venture Group · filed Oct 2019 · $3M raise
EclypsiumBoard seat
via Madrona Venture Group · filed Dec 2018 · $8.8M raise
SaykaraBoard seat
via Madrona Venture Group · filed Jul 2018 · $5M raise
JobalineBoard seat
via Madrona Venture Group · filed Feb 2017 · $7.2M raise
SNUPI TechnologiesBoard seat
via Madrona Venture Group · filed Jan 2015 · $1.5M raise
Attribution from SEC filings, press coverage, and firm rosters.
Other disclosed investments
Board seats
AlgorithmiaAppatureAppFogBuuteeqContext RelevantHeptioHighspotIntegrisJama SoftwareJobalignMobilisafePixvanaShippableUnion Bay NetworksVersiveZ2
Sources: curated public sources · SEC Form D filings.
Colleagues at Madrona Venture Group
Frequently asked questions
- Who is Tim Porter?
- 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. Before joining Madrona in 2006, he worked in Microsoft's Corporate Development group, where he focused on acquisitions and investments for the Server and Tools business. His investment focus centers on B2B software companies, including intelligent SaaS applications, cloud native software, next-generation developer services and platforms, machine learning and data analytics, and security. He has stated a particular interest in very early-stage companies led by founders building around differentiated technology. He has served on the boards of numerous portfolio companies and has seen several exits, including buuteeq (acquired by Priceline) and Appature (acquired by IMS Health). He also participates in the Seattle technology community through roles with angel investing and industry organizations.
- Where does Tim Porter work?
- Tim Porter is Managing Director at Madrona Venture Group and Board director at NewDays and Board director at Docusmart and Board director at Eclypsium.
- What check size does Tim Porter write?
- Tim Porter typically writes checks of $500K – $10M.
- What boards does Tim Porter sit on?
- Tim Porter holds tracked board seats at Algorithmia, Appature, AppFog, Buuteeq, Context Relevant, Docusmart, Echodyne, Echodyne, Eclypsium, Heptio.
- Where did Tim Porter go to school?
- Tim Porter studied at Stanford University Graduate School of Business (MBA); Massachusetts Institute of Technology (BS, Mechanical Engineering); Racine Lutheran High School.
Same school
Also attended Stanford University Graduate School of Business1,299
+ 1,293 more
Also attended Massachusetts Institute of Technology1,297
+ 1,291 more
Shared employers
Also worked at Microsoft1,087
+ 1,081 more
Also worked at Goldman Sachs1,447
+ 1,441 more

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