Duncan Sumner: Email & Phone Number

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R&D Engineer II at Penumbra, Inc.|Alameda, California, United States

Position:

R&D Engineer II at Penumbra, Inc.

Location:

Alameda, California, United States

View Duncan Sumner's Email

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Last updated: 2026-06-10

Updated: 2026-06-10

Found email addresses for Duncan Sumner:

Business emails:

d*****r@penumbrainc.com

Personal emails:

s***@umn.edu,

s***@gmail.com,

s***@abbott.com

Found phones for Duncan Sumner:

+1-623-***-**57,

+1-323-***-**08,

+1-480-***-**46

A different Duncan Sumner?

Work Experience 11 years

R&D Engineer II at Penumbra, Inc.

Oct 2019 - Current

Mechanical Engineering Student at University of Minnesota

Sep 2015 - Aug 2019

Research and Development Engineering Co-op at Abbott

Jan 2018 - Aug 2018

Quality Assurance Intern at Encore

May 2015 - Sep 2016

Duncan Sumner started working in 2015, then the employee has changed 3 companies and 3 jobs. On average, Duncan Sumner works for one company for 3 years 2 months.

Their professional focus is 3Mensio, C++, and Customer Service across 3 core areas.

Education

Bachelor’s Degree at University of Minnesota-Twin Cities

Frequently Asked Questions

What is Duncan Sumner's email address?

SignalHire found verified email addresses for Duncan Sumner, both business and personal. Their business email is d*****r@penumbrainc.com, and personal emails include s***@umn.edu, s***@gmail.com, and s***@abbott.com.

What is Duncan Sumner's phone number?

SignalHire found multiple verified phone numbers for Duncan Sumner: +1-623-***-**57, +1-323-***-**08, and +1-480-***-**46.

How do I contact Duncan Sumner at Penumbra, Inc.?

You can reach Duncan Sumner through SignalHire by unlocking their verified email and direct phone number (free signup, no credit card needed). SignalHire is the fastest route if you need their contact details immediately.

What is Duncan Sumner's professional background?

Duncan Sumner has 11 years of professional experience. They have held roles including Mechanical Engineering Student, Research and Development Engineering Co-op, and Quality Assurance Intern at companies such as University of Minnesota, Abbott, and Encore. Their education includes Bachelor’s Degree from University of Minnesota-Twin Cities.

Is Duncan Sumner's contact information up to date?

Yes. Duncan Sumner's SignalHire profile was last updated on 10 June 2026, reflecting their current position as R&D Engineer II at Penumbra, Inc. in Alameda, CA, United States.

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