Greg Lignelli - Email & Phone Number

President and COO at System One

Greg Lignelli is based out of Pittsburgh, Pennsylvania, United States and works at System One as President and COO.

Greg Lignelli's Contact Information

Greg Lignelli's Work email

g*****@system***.com

Valid

Latest update

October 29, 2025

Location

Pittsburgh, Pennsylvania, United States

Greg's current employer

System One

Description

System One provides industrial solutions and fabrication for construction projects, plant outages, and ongoing maintenance.

Website

systemone.com

HQ Location

Pittsburgh, Pennsylvania, United States

Number of employees

5001-10000

Industry

Staffing And Recruiting

Latest update

May 1, 2024

Read about System One

Frequent questions about Greg Lignelli

What company is Greg Lignelli working for?

Greg Lignelli works for System One.

What is Greg Lignelli's function at System One?

Greg Lignelli is President and COO at System One.

Where is Greg Lignelli based?

Greg Lignelli is based out of Pittsburgh, Pennsylvania, United States.

What is Greg Lignelli's work email address?

Greg Lignelli's professional email address is g*****@system***.com

Who are Greg Lignelli's co-workers?

Greg Lignelli's colleagues are David Martin, Frank Dr. Thiel, Troy Gregory, Joan Drost, Chloé Réquiston, Matt White, Steven Huntington, Christine Hunter, Wendy Tordilio, Brandon Gold, Curtis Platzek, Cindi Mitchell, Jodi Zarin, Carla Snell, Mary Gapinski, Jared Every, Scot Lehman, Daphne Barr, Quinn VanGorden, Daniel Brock, Markell Kelley, James Kelley, Jane Harden, Maxwell O'Rourke, Stephen Tholkes, Tim Bosse, Paul Triska, Lisa Biondi, Sylvia Aguirre, Clay Landrum, Todd Sullivan, Justin Inwood, Domenica Heller, Justin-David Tucker, Abhijit Bose.

Greg's co-workers

David Martin

Owner Representative (Crowley Maritime Corporation) / Construction Management, Electrical

Frank Dr. Thiel

CEO

Troy Gregory

Chief Executive Officer

Joan Drost

Sr. Project Coordinator/Recruiter

Chloé Réquiston

On-site coordinator

Matt White

Site Safety coordinator Inspector / TCE Pipeline and facilities

Steven Huntington

Senior Vice President, Quality Solutions

ELECTRICAL START-UP/COMMISIONING SPECIALIST/LOTO COORDINATOR

Cindi Mitchell

Clinical Contract Coordinator @ Janssen Pharmaceuticals

Jodi Zarin

Vice President

Carla Snell

Vice President, National Business Development

Mary Gapinski

Vice President Finance

Jared Every

Vice President, IT Solutions

Scot Lehman

Senior Vice President

Daphne Barr

Human Resources Coordinator

Quinn VanGorden

Senior Vice President

Daniel Brock

Division Vice President, Engineering & Energy

Markell Kelley

Quality Field Coordinator

James Kelley

Vice President, Tulsa Office

Jane Harden

Field Coordinator

Maxwell O'Rourke

On-Site Coordinator at System One Holdings

Stephen Tholkes

Vice President Business Development

Tim Bosse

Senior Vice President, Talent Solutions

Paul Triska

Vice President, Nuclear Services

Lisa Biondi

CIO

Sylvia Aguirre

Recruiter & Operations Coordinator

Director of NDT and Inspection Operations

Domenica Heller

Director of Construction Management and Inspection

Justin-David Tucker

Director of Utilities & Clean Energy

Abhijit Bose

Director Of Recruiting

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