John Dumakowski
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John Dumakowski Email & Phone Number

Field Leader Electric Line at NiSource
Location: Greater Chicago Area, United States 8 work roles 2 schools
1 work email found @nisource.com LinkedIn matched
✓ Verified July 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email

Work email j****@nisource.com
LinkedIn Profile matched
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Current company
NiSource
Role
Field Leader Electric Line
Location
Greater Chicago Area, United States
Company size
5136 employees

Who is John Dumakowski? Overview

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Quick answer

John Dumakowski is listed as Field Leader Electric Line at NiSource, a with 5136 employees, based in Greater Chicago Area, United States. AeroLeads shows a work email signal at nisource.com and a matched LinkedIn profile for John Dumakowski.

John Dumakowski previously worked as Transmission System Supervisor at Nisource and Station Electrical Engineer at Nisource. John Dumakowski holds Bachelor Of Science, Electrical Engineering Technology from Purdue University.

Company email context

Email format at NiSource

This section adds company-level context without repeating John Dumakowski's masked contact details.

{first_initial}{last}@nisource.com
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AeroLeads found 1 current-domain work email signal for John Dumakowski. Compare company email patterns before reaching out.

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Profile bio

About John Dumakowski

John Dumakowski is a Field Leader Electric Line at NiSource. He possess expertise in electrical engineering, plc, automation, engineering, power plants and 13 more skills.

Listed skills include Electrical Engineering, Plc, Automation, Engineering, and 14 others.

Current workplace

John Dumakowski's current company

Company context helps verify the profile and gives searchers a useful next step.

NiSource
Nisource
Field Leader Electric Line
merrillville, indiana, united states
Website
nisource.com
Employees
5136
AeroLeads page
Company profile
View company profile Email format
8 roles

John Dumakowski work experience

A career timeline built from the work history available for this profile.

Field Leader Electric Line

Current
Nisource
Aug 2021 - Present

Transmission System Supervisor

Nisource

Nipsco

Aug 2016 - Aug 2021

Station Electrical Engineer

Nisource

Nipsco

Apr 2013 - Jul 2016

President, Licensed Inspector

Jedinspections

Crown Point In

Residential and Commercial Inspections throughout Northwest Indianawww.jedinspections.com

Oct 2014 - Dec 2018

Electrical Engineer

Lml Automated Systems
Nov 2010 - Apr 2013

Hardware Engineer

Delphi
Oct 2007 - Nov 2009

Field Service Engineer Intern

Ge Energy
Mar 2005 - Aug 2005
Team & coworkers

Colleagues at NiSource

Other employees you can reach at nisource.com. View company contacts for 5136 employees →

JA Janis Adams Janis Adams Colleague at NisourceMansfield, Ohio, United States View → BN Benjamin Nesdore Benjamin Nesdore Colleague at NisourceColumbus, Ohio, United States View → SC Sarah Collins Sarah Collins Colleague at NisourceColumbus, Ohio, United States View → TS Tabrej Sheikh Tabrej Sheikh Colleague at NisourceBhopal, Madhya Pradesh, India View → MP Mark Pariseau Mark Pariseau Colleague at NisourceWilbraham, Massachusetts, United States View → JS John Siegle John Siegle Colleague at NisourceCanal Winchester, Ohio, United States View → YR Yanira Roman Yanira Roman Colleague at NisourceCuernavaca, Morelos, Mexico View → BM Brandon Marczika Brandon Marczika Colleague at NisourceColumbus, Ohio Metropolitan Area, United States View → MP María Perez María Perez Colleague at NisourceMadrid, Community Of Madrid, Spain View → CR Cindy Roque Cindy Roque Colleague at NisourceMerrillville, Indiana, United States View →
2 education records

John Dumakowski education

Education record

Munster High School
FAQ

Frequently asked questions about John Dumakowski

Quick answers generated from the profile data available on this page.

What company does John Dumakowski work for?

John Dumakowski works for NiSource.

What is John Dumakowski's role at NiSource?

John Dumakowski is listed as Field Leader Electric Line at NiSource.

What is John Dumakowski's email address?

AeroLeads has found 1 work email signal at @nisource.com for John Dumakowski at NiSource.

Where is John Dumakowski based?

John Dumakowski is based in Greater Chicago Area, United States while working with NiSource.

What companies has John Dumakowski worked for?

John Dumakowski has worked for Nisource, Jedinspections, Lml Automated Systems, Elettric80 Inc., and Delphi.

Who are John Dumakowski's colleagues at NiSource?

John Dumakowski's colleagues at NiSource include Janis Adams, Benjamin Nesdore, Sarah Collins, Tabrej Sheikh, and Mark Pariseau.

How can I contact John Dumakowski?

You can use AeroLeads to view verified contact signals for John Dumakowski at NiSource, including work email, phone, and LinkedIn data when available.

What schools did John Dumakowski attend?

John Dumakowski holds Bachelor Of Science, Electrical Engineering Technology from Purdue University.

What skills is John Dumakowski known for?

John Dumakowski is listed with skills including Electrical Engineering, Plc, Automation, Engineering, Power Plants, Autocad, Electrical Troubleshooting, and Scada.

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