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Tim Porter
InvestorManaging Director at Madrona Venture Labs · Managing Director at Madrona Venture Group
Seattle, Washington
Writes $500K – $10M checks · typically $5M
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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.
Contact· self-published, not guessed
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 published sources — common ground for a warm intro.
Deals · 7
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
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 RelevantHeptioHighspotIntegrisIntegrisJama SoftwareJobalignMobilisafePixvanaShippableUnion Bay NetworksVersiveZ2
Investor
2Nd WatchAlgorithmiaAppatureAppFogApptiobuuteeqClarifyClarify AIEsperExtraHop NetworksGroundlight AIHeptioHighspotImpinjJama SoftwareKOSHERCOLassen PeakLEXIONMobilisafeNumbers StationOutbound AIPixvanaShippableSpice AITier 3Union Bay NetworksVersiveVoodleWhyLabs AIZ2
Sources: curated public sources · SEC Form D filings.
Colleagues at Madrona Venture Labs
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 Labs and Managing Director at Madrona Venture Group.
- 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.
- What companies has Tim Porter invested in?
- Investments tracked here include 2Nd Watch, Algorithmia, Appature, AppFog, Apptio, buuteeq, Clarify, Clarify AI, Echodyne, Eclypsium, Esper, ExtraHop Networks, and 21 more.
About this profile. Compiled from public sources — Madrona Venture Labs's own website, regulatory filings and public professional profiles — and summarised by Fundraising Fox; every fact is kept with where it came from. Spotted an error, or would rather not be listed? Email privacy@fundraisingfox.com · How we build profiles · Your rights