Where does Tim Porter work?

Tim Porter is Managing Director at Madrona Venture Labs 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.

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, Minor in Economics).

Tim Porter

Investor

Managing Director at Madrona Venture Labs · Managing 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

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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

tim@madrona.com

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.

Board director at NewDays

Intro paths

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NewDays's investors · 3

Cartan Capital General CatalystSan Francisco · $30M checks · since 2025 Madrona Venture GroupSeattle · $2M – $10M checks · since 2026

Co-founders at NewDays

Babak Amir ParvizFounder, CEO

Board director at Docusmart

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In turn, Tim can intro founders to Docusmart's investors below.

Docusmart's investors · 3

Khosla VenturesMenlo Park · $100K – $20M checks · since 2023 Madrona Venture GroupSeattle · $2M – $10M checks · since 2023 Point72 VenturesNew York · $1M – $75M checks · since 2023

Co-founders at Docusmart

EMAD ELWANYExecutive Officer, Director

GAURAV OBEROIExecutive Officer, Director

Board director at Eclypsium

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In turn, Tim can intro founders to Eclypsium's investors below.

Eclypsium's investors · 21

Alumni VenturesManchester · $100K – $10M checks Andreessen HorowitzMenlo Park · $500K – $50M checks · since 2025 AV8 VenturesPalo Alto · $500K – $10M checks aVentureSan Francisco Basecamp FundManchester · $100K – $10M checks DniproPalo Alto Global BrainTokyo · $100K checks Intel CapitalSanta Clara · $1M – $20M checks · since 2025 J-VenturesSilicon Valley · $250K – $1M checks KDDI Open Innovation Fund Madrona Venture GroupSeattle · $2M – $10M checks · since 2018 Mango CapitalLos Altos · $1M – $1.5M checks Mindset VentureSan Francisco · $500K – $3M checks Oregon Venture FundPortland · $500K – $5M checks Qualcomm VenturesSan Diego · $5M checks · since 2025 SingTel Innov8 Pte Ltd.Singapore · $80K – $25M checks · since 2025 Sixty Degree CapitalNorth York · since 2025 Ten ElevenBurlingame · $3M – $15M checks · since 2024 TransLink CapitalPalo Alto · $1M – $5M checks U.S. Air Forcesince 2021 Ubiquity VenturesPalo Alto · $1M – $3M checks

Co-founders at Eclypsium

Yuriy BulyginCo-founder

Alex BazhaniukCo-founder

Alex BFounder

Experience

Madrona Venture GroupManaging Directorcurrent2006 — presentSeattle, WA
MicrosoftDirector, Corporate Development2003 — 2006
Goldman SachsSummer Associate2002
TeledesicDirector of Finance1996 — 2001
Eagle River InvestmentsDirector of Finance2000 — 2001

Skills & more

Venture CapitalCorporate Development71

From Tim's professional profile.

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 RelevantHeptioHighspotIntegris Integris Jama SoftwareJobalignMobilisafePixvanaShippableUnion Bay NetworksVersiveZ2

Investor

2Nd Watch AlgorithmiaAppatureAppFogApptiobuuteeqClarifyClarify AIEsperExtraHop NetworksGroundlight AIHeptio Highspot Impinj Jama SoftwareKOSHERCOLassen Peak LEXIONMobilisafeNumbers StationOutbound AIPixvana Shippable Spice AITier 3Union Bay NetworksVersiveVoodleWhyLabs AIZ2

Sources: curated public sources · SEC Form D filings.

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Colleagues at Madrona Venture Labs

Alexandra Estep

Controller at Madrona Venture Labs

Alison McCulloch

Executive Assistant at Madrona Venture Group

Alli Sherwin

Executive Assistant at Madrona Venture Group

An Cayas

Executive Assistant at Madrona Venture Labs

Andrew Leary

IT Support Engineer at Madrona Venture Labs

Anna Baird

Venture Partner at Madrona Venture Labs

Anna Chen

Investor at Madrona Venture Group

Anna Schmitz

Receptionist 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 Labs 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.
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.
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, Minor in Economics).