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Investors / United States / InterWest Partners

InterWest Partners

Venture capital · San Francisco, CA, United States · North America

interwest.com

InterWest Partners is an early-stage investor that has invested in IT and healthcare start-ups for over four decades. The firm states it is not currently seeking new investments.

In its own wordsithealthcareearly-stage

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1portfolio companies
0funding rounds on record
Seed to Series Astages it states

InterWest Partners lists 1 checked portfolio company on its own site. 100% of its companies are based in Australia. It invests most often alongside AdFirst.vc, Airtree and Alkeon Capital.

No funding round on record names InterWest Partners yet, so the figures come from its portfolio page.

Invests most often with

firms sharing its portfolio companies
AdFirst.vc 1Airtree 1Alkeon Capital 1Altra Venture Partners 1Athletic Ventures 1BAM Elevate 1Bessemer Venture Partners 1Blackbird 1
Show as a table
Co-investors
Share
AdFirst.vc1
Airtree1
Alkeon Capital1
Altra Venture Partners1
Athletic Ventures1
BAM Elevate1
Bessemer Venture Partners1
Blackbird1

All co-investors

Its portfolio companies

where they are based, and what their own sites show

Headquarters

Site status

  • Site answers1100%
  • No longer answers00%
  • Points to another company00%
  • Parked or sold domain00%

A site that stops answering three checks in a row is counted as no longer answering; that is not proof of closure. A site that points to another company is often an acquisition.

Co-investor network

who it backs companies with, and who they back together
14 shared companies13 shared companies11 shared companies9 shared companies8 shared companies7 shared companies7 shared companies6 shared companies6 shared companies6 shared companies6 shared companies6 shared companies6 shared companies6 shared companies5 shared companies5 shared companies4 shared companies4 shared companies3 shared companies3 shared companies3 shared companies3 shared companies3 shared companies3 shared companiesAdFirst.vc: 1 shared companiesAdFirst.vc1Airtree: 1 shared companiesAirtree1Alkeon Capital: 1 shared companiesAlkeon Capital1Altra Venture Partners: 1 shared companiesAltra Venture Partners1Athletic Ventures: 1 shared companiesAthletic Ventures1BAM Elevate: 1 shared companiesBAM Elevate1Bessemer Venture Partners: 1 shared companiesBessemer Venture Part…1Blackbird: 1 shared companiesBlackbird1CapitalG: 1 shared companiesCapitalG1Coatue: 1 shared companiesCoatue1FPV: 1 shared companiesFPV1Felicis: 1 shared companiesFelicis1
Shared portfolio companies with InterWest PartnersFirms that also back companies together

All co-investors or Compare portfolios with AdFirst.vc

Compare InterWest Partners head to head

portfolio size, rounds, entry stages, themes and the companies both back
vs AdFirst.vc1 shared companyvs Airtree1 shared companyvs Alkeon Capital1 shared companyvs Altra Venture Partners1 shared companyvs Athletic Ventures1 shared companyvs BAM Elevate1 shared company

Three or more firms at once: portfolio overlap.

Portfolio

1 company checked against their own sites
CompanyWhat it doesThemesFirst round with itEvidence
Canvacanva.com · Australia
Portfolio page

About this data

site last read 5 Nov 2026
The homepage of InterWest Partners, as last read
interwest.com as VCinfo last read it
Site
interwest.com
Last read
5 Nov 2026
Watching since
6 Nov 2026
Companies checked
1

Rates come from what VCinfo has observed since observation_start. Firms tend to remove companies that closed, so early rates understate reality. A company leaving a portfolio page does not mean it closed or exited. An unreachable site means our checks failed, nothing more.

How we grade the data

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VCinfo API
$ curl -H "X-API-Key: YOUR_KEY" \
  https://api.vcinfo.io/v1/firms/interwest.com

# also
GET /v1/firms/interwest.com/portfolio
GET /v1/firms/interwest.com/coinvestors
GET /v1/firms/interwest.com/news
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