Bill Welch
InvestorVenture Partner at Illuminate Ventures
San Diego, California
Writes $100K – $5M checks · typically $1.5M
Find your path to Bill
264 people in our graph can introduce you to Bill.
Each arrow is one introduction. Sign up to fill in the first one.
Ask Nick Naclerio to introduce you to Bill
You →Nick · together at Illumina Ventures (2019–2025) →Bill
Ask Jamie Chen to introduce you to Bill
You →Jamie · 11 people · together at Illumina Ventures →Bill
Sign up to find every way you can get introduced to Bill
- Your email: the people you already email who know Bill
- 2nd- and 3rd-degree connections: people you know who worked, studied or invested with Bill
- Your LinkedIn: the connections who can make the intro for you
We rank every route by how warm it is, so you raise on warm intros instead of cold emails.
Experience
- SkyDeck Associates LLCManaging Directorcurrent2010 — present
- Illumina VenturesVenture Partner2019 — 2025San Deigo, California
- Serimmune Inc.Board Member2019 — 2024Santa Barbara, California Area
- TrovagenePresident and Chief Executive Officer2016 — 2018Greater San Diego Area
- SequenomPresident and Chief Executive Officer2014 — 2015La Jolla, CA
- SequenomPresident and Chief Operating Officer2012 — 2014La Jolla, California
- SequenomSenior Vice President, Diagnostics2011 — 2012
- Monogram BiosciencesSenior Vice President, Chief Commercial Officer2005 — 2009
- La Jolla Pharmaceutical CompanyVice President, Sales and Marketing2001 — 2005
- Dade Behring MicroScanVice President, Global Marketing1999 — 2001
- Abbott LaboratoriesGeneral Manager1993 — 1999
Skills & more
+3 more
LifesciencesPMABusiness AlliancesFrom Bill's professional profile.
Colleagues at Illuminate Ventures
Network5
Investors connected to Bill in public investor directories — a warm-intro map.
Frequently asked questions
- Who is Bill Welch?
- Venture Partner at Illuminate Ventures
- Where does Bill Welch work?
- Bill Welch is Venture Partner at Illuminate Ventures.
- What check size does Bill Welch write?
- Bill Welch typically writes checks of $100K – $5M.
- Where did Bill Welch go to school?
- Bill Welch studied at Harvard Business School (MBA); University of California, Berkeley (BS, Chemical Engineering).
Founder mafias
Harvard Business School mafia1,270
Also came through, then founded or led a company.
Illumina Ventures mafia6
Also came through, then founded or led a company.
Illuminate Ventures mafia3
Also came through, then founded or led a company.
Serimmune mafia3
Also came through, then founded or led a company.
Same school
Also attended Harvard Business School2,000
+ 1,994 more
Also attended University of California, Berkeley2,000
+ 1,994 more
Shared employers
Also worked at Illumina Ventures19
+ 13 more
Also worked at Serimmune Inc.2
Also worked at Sequenom9
+ 3 more











































