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InterWest Partners

Venture Capital · Founded 1979 · Menlo Park, United States

#395 Investor Ranking 2026 Top 3% of investors worldwide

15 million over the span of their involvement with each company in their portfolio

180 Portfolio companies+18% in 5 years
44 Unicorns
19 Decacorns
349 Investments
Oct 2021 Last investment
01 · Biggest holdings

InterWest Partners’ biggest current holdings.

The most valuable companies InterWest Partners still holds, ordered by Dealroom’s latest valuation. Companies that have been acquired or gone public are in Exits instead. Dealroom has no parsed shareholder register for InterWest Partners, so the size of each stake isn’t shown.

#CompanyValuation
  1. 1 CanvaDecacorn · Media · Australia $42.0B
  2. 2 Intarcia TherapeuticsUnicorn · Health · USA $3.9B

Unicorns and thoroughbreds InterWest Partners has backed and still holds, at Dealroom’s latest valuation. See the underlying shareholder registers on Dealroom →

02 · Exits

InterWest Partners’ biggest exits.

Portfolio companies that IPO’d or were acquired at $1B+, with the valuation recorded at exit and — for those still public — their value today. Exit events come from each company’s funding-round history; entry stage from InterWest Partners’ transaction record.

Cadence Design Systems
$130M IPO · 1987
Entered Series ANow $95BSemiconductors
IPO · 1997
Entered Series ANow $59BTelecom
$415M IPO · 2015
Entered Series B+Now $10BHealth
$9.5B IPO · 2021
Entered Series ANow $4.2BJobs Recruitment
$320M IPO · 2015
Entered Series ANow $9.2BHealth
$5.9B IPO · 2021
Entered Series B+Now $2.7BMarketing
Cirrus Logic
IPO · 1989
Now $5.5BSemiconductors
$5.1B acquisition · 2018
Now $5.1BHealth
$158M IPO · 2014
Entered Series ANow $5.0BHealth
$465M IPO · 2013
Entered Series ANow $4.8BMarketing
$4.0B IPO · 2020
Entered Series B+Now $1.0BEnterprise Software
$1.7B IPO · 2019
Entered Series B+Now $1.8BFashion
03 · Portfolio analysis

Where InterWest Partners’ portfolio is concentrated.

Distribution of portfolio companies by headquarters country, sector, entry stage and current growth stage. Across all 180 portfolio companies. "Stage entered" is the first priced round the investor joined, derived from the investor’s transaction history.

By countryCount
  1. USA239
  2. UK5
  3. Canada2
  4. Cuba2
  5. Finland2
  6. Israel2
  7. Switzerland2
  8. Australia1
  9. Azerbaijan1
  10. China1
  11. Estonia1
  12. France1
By sectorCount
  1. Health101
  2. Enterprise Software36
  3. Semiconductors24
  4. Marketing23
  5. Telecom19
  6. Fintech15
  7. Media14
  8. Education6
  9. Jobs Recruitment5
  10. Security5
  11. Transportation5
  12. Wellness Beauty5
By stage enteredCount
  1. Series B+95
  2. Series A63
  3. Seed17
By growth stageCount
  1. Breakout Stage106
  2. Early Growth57
  3. Late Growth56
  4. Mature43
04 · Portfolio market map

Inside InterWest Partners’ portfolio.

The 60 highest-funded portfolio companies, of 180 tracked.

Intarcia Therapeutics
Health · Unicorn
$3.9B
Canva
Media · Decacorn
$42B
Bolt
Security
$300M
Cidara Therapeutics
Health · Unicorn
$9.2B
Cheetah Digital by Marigold
Marketing · Unicorn
$1.6B
Tizona Therapeutics
Health · Unicorn
$1.2B
The RealReal
Fashion · Unicorn
$1.8B
Gynesonics
Health
$375M
Welltok
Health
$111M
Airspan
Telecom
$133M
Pivot3
Enterprise Software
$220M
PMV Pharmaceuticals
Health
Cardiac Dimensions
Health
$212M
NeuroPace
Health
$522M
C3.ai
Enterprise Software · Unicorn
$1.0B
Sera Prognostics
Health
$36M
Avedro
Health
$100M
Optimizely
Marketing
$200M
Aryaka
Enterprise Software
$200M
Braze
Marketing · Unicorn
$2.7B
Aria Systems
Fintech
$120M
Neuronetics
Health
$238M
MacroGenics
Health
$138M
Centrexion Therapeutics
Health
$162M
TESARO
Health · Unicorn
$5.1B
Silicon Optix
Semiconductors
$116M
INVIDI Technologies
Marketing
$196M
Nereus Pharmaceuticals
Health
$80M
Spredfast
Marketing
$200M
AMEC
Semiconductors · Decacorn
$47B
Metro Optix
Telecom
$216M
Totango
Marketing
$400M
ReVision Optics
Health
$60M
Artas
Health
$200M
Alvine Pharmaceuticals
Health
$280M
Eledon Pharmaceuticals
Health
$140M
Xirrus
Telecom
$30M
Standard Biotools
Health
Benvenue Medical
Health
$160M
Glaukos
Health · Decacorn
$10B
Marketo
Marketing · Unicorn
$4.8B
Welcome Software
USA
NewsCred
Media
$80M
Invuity
Health
$80M
Cebix
Health
$133M
Autonomic Technologies
Health
$152M
Xenon Pharmaceuticals
Health · Unicorn
$5.0B
Achates Power
Transportation
$119M
Tapjoy
Marketing
$400M
Atritech
Health
$375M
Kajeet
Telecom
$72M
Doximity
Jobs Recruitment · Unicorn
$4.2B
Spiration
Health
$74M
Olympus America
Health
Obalon Therapeutics
Health
$240M
Applied Genetics Technologies Corporation
Health
$13M
Lycera
Health
$120M
Splice Machine
Fintech
$64M
Paracor Medical
USA
$176M
Tasman Networks
Telecom
$58M
05 · Portfolio founders

Where InterWest Partners’ portfolio founders come from.

84 founders across the 100 highest-funded portfolio companies — by current location, university attended, and the companies they worked at before founding. Sourced from the founder records the API links to each portfolio company.

LocationCount
  1. United States66
  2. Australia3
  3. Canada2
  4. China2
  5. Israel2
  6. Armenia1
UniversityCount
  1. Massachusetts Institute of Technology4
  2. Stanford University4
  3. Princeton University3
  4. Yale University3
  5. Harvard University2
  6. Stanford University School of Medicine2
  7. University of California, Berkeley2
  8. University of Cape Town2
  9. University of Pennsylvania2
  10. California Polytechnic State University1
Previous companyCount
  1. Alphabet | Google3
  2. Bridgewater Associates3
  3. Institute for Systems Biology2
  4. Pfizer2
  5. Accenture1
  6. Aegis Lightwave1
  7. Amarin1
  8. Anesiva1
  9. Ascendant Technology1
  10. Bonnier Corporation1
07 · Key people

Key people at InterWest Partners.

Source: Curated from official investor team pages and verified public profiles.