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Mark Kostecki Email & Phone Number
Six Sigma Black Belt \ CI Leader at WestRock Company
at
WestRock Company
LinkedIn matched
✓ Verified August 2026
2 data sources
Profile completeness 71%
Current company
Role
Six Sigma Black Belt \ CI Leader at WestRock Company
Location
St Louis, Missouri, United States
Company size
Who is Mark Kostecki? Overview
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Quick answer
Mark Kostecki is listed as Six Sigma Black Belt \ CI Leader at WestRock Company at WestRock Company, a with 21186 employees, based in St Louis, Missouri, United States. AeroLeads shows a matched LinkedIn profile for Mark Kostecki.
Mark Kostecki previously worked as Six Sigma Black Belt \ CI Leader at Westrock Company.
Company email context
Email format at WestRock Company
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WestRock Company
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Profile bio
About Mark Kostecki
Mark Kostecki is a Six Sigma Black Belt \ CI Leader at WestRock Company at WestRock Company.
Current workplace
Mark Kostecki's current company
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Westrock Company
1 role
Mark Kostecki work experience
A career timeline built from the work history available for this profile.
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Six Sigma Black Belt \ Ci Leader
Team & coworkers
Colleagues at WestRock Company
Other employees you can reach at westrock.com. View company contacts for 21186 employees →
NR
Nakia Register
Colleague at Westrock CompanyAtlanta, Georgia, United States
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BN
Brent Neal
Colleague at Westrock CompanyLivingston, Texas, United States
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DL
Dennis Lasky
Colleague at Westrock CompanyNeenah, Wisconsin, United States
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PK
Piotr Kieczmer
Colleague at Westrock CompanyPruszcz Gdański, Pomorskie, Poland
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RW
Robert Waddell
Colleague at Westrock CompanyPanama City, Florida, United States
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MK
Mike Kirkland
Colleague at Westrock CompanyStevenson, Alabama, United States
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KB
Kelly Bello
Colleague at Westrock CompanyBedford, Ohio, United States
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MA
Mario Angers
Colleague at Westrock CompanyVictoriaville, Quebec, Canada
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JW
Joseph Walker
Colleague at Westrock CompanyJacksonville, Florida, United States
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EG
Ebenezer Garcia
Colleague at Westrock CompanyMexicali, Baja California, Mexico
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Nakia Register
Colleague at Westrock CompanyAtlanta, Georgia, United States
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BN
Brent Neal
Colleague at Westrock CompanyLivingston, Texas, United States
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DL
Dennis Lasky
Colleague at Westrock CompanyNeenah, Wisconsin, United States
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PK
Piotr Kieczmer
Colleague at Westrock CompanyPruszcz Gdański, Pomorskie, Poland
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RW
Robert Waddell
Colleague at Westrock CompanyPanama City, Florida, United States
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MK
Mike Kirkland
Colleague at Westrock CompanyStevenson, Alabama, United States
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KB
Kelly Bello
Colleague at Westrock CompanyBedford, Ohio, United States
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MA
Mario Angers
Colleague at Westrock CompanyVictoriaville, Quebec, Canada
View →
JW
Joseph Walker
Colleague at Westrock CompanyJacksonville, Florida, United States
View →
EG
Ebenezer Garcia
Colleague at Westrock CompanyMexicali, Baja California, Mexico
View →
FAQ
Frequently asked questions about Mark Kostecki
Quick answers generated from the profile data available on this page.
What company does Mark Kostecki work for?
Mark Kostecki works for WestRock Company.
What is Mark Kostecki's role at WestRock Company?
Mark Kostecki is listed as Six Sigma Black Belt \ CI Leader at WestRock Company at WestRock Company.
Where is Mark Kostecki based?
Mark Kostecki is based in St Louis, Missouri, United States while working with WestRock Company.
What companies has Mark Kostecki worked for?
Mark Kostecki has worked for Westrock Company.
Who are Mark Kostecki's colleagues at WestRock Company?
Mark Kostecki's colleagues at WestRock Company include Nakia Register, Brent Neal, Dennis Lasky, Piotr Kieczmer, and Robert Waddell.
How can I contact Mark Kostecki?
You can use AeroLeads to view verified contact signals for Mark Kostecki at WestRock Company, including work email, phone, and LinkedIn data when available.
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