John Stack: Email & Phone Number

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Retired Technology Executive at Retired|Chester, Connecticut, United States

Position:

Retired Technology Executive at Retired

Location:

Chester, Connecticut, United States

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Last updated: 2026-07-20

Updated: 2026-07-20

Found email addresses for John Stack:

Business emails:

s***k@zygo.com,

j*****k@maxanalytical.com,

j*****k@zygo.com

Personal emails:

j************n@yahoo.com

Found phones for John Stack:

+1-623-***-**10,

+1-520-***-**88

A different John Stack?

Work Experience 32 years

Retired Technology Executive at Retired

Apr 2023 - Current

Sr. Director, Gas Analysis Solutions at Thermo Fisher Scientific

Feb 2022 - Apr 2023

Chief Executive Officer at Max Analytical Technologies - Thermo Fisher Scientific

Nov 2017 - Feb 2022

Partner at HighPath Partners

Jan 2016 - Jan 2018

President, Optical Systems Division at Zygo

Nov 2006 - Jan 2014

President & COO at Edmund Optics

Jan 2000 - Jan 2006

Executive Vice President at Edmund Optics

Nov 1997 - Nov 2000

Director of Engineering at Edmund Optics

Jan 1994 - Jan 1997

John Stack started working in 1994, then the employee has changed 5 companies and 7 jobs. On average, John Stack works for one company for 3 years 9 months.

Their professional focus is Application Engineers, Business Development, and Business Strategy across 3 core areas.

Education

The Wharton School

BS at University of Pittsburgh

Frequently Asked Questions

What is John Stack's email address?

SignalHire found verified email addresses for John Stack, both business and personal. Their business email is s***k@zygo.com, and personal emails include j************n@yahoo.com.

What is John Stack's phone number?

SignalHire found multiple verified phone numbers for John Stack: +1-623-***-**10, and +1-520-***-**88.

How do I contact John Stack at Retired?

You can reach John Stack 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 John Stack's professional background?

John Stack has 32 years of professional experience. They have held roles including Sr. Director, Gas Analysis Solutions, Chief Executive Officer, and Partner at companies such as Thermo Fisher Scientific, Max Analytical Technologies - Thermo Fisher Scientific, and HighPath Partners. Their education includes The Wharton School, and BS from University of Pittsburgh.

Is John Stack's contact information up to date?

Yes. John Stack's SignalHire profile was last updated on 20 July 2026, reflecting their current position as Retired Technology Executive at Retired.

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John Stack

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Senior Regional Sales Manager - Metro NY

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John Stack

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Sales Director & Senior Auctioneer

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