Constellation: Detailed Company Information & Corporate Profile

Contact top employees from Constellation

Summary

Constellation operates as a utility supplier based out of Baltimore, Maryland, serving the Metropolitan Area with a workforce exceeding ten thousand employees. Established in 1999 and now functioning as a subsidiary, the company generates annual revenue between $10 billion and $100 billion, aligning with SIC code 1382 for electric utilities.

The leadership team drives Constellation’s strategic direction. Dan Sadler leads information security initiatives as Chief Information Security Officer & Vice President. Joseph Downs oversees corporate and commercial counsel. LaCondra Allen, President of the Alliance for African American Advancement (4A) in Louisville, joins the executive ranks. Additional executives include Roslyn, Vice President of IT Corporate Systems; Andrew Freed, Senior Operations Training Instructor; Holly Rich, Associate General Counsel; Arielle Davenport, Senior Product Analyst; Thomas Mcilroy III, Instrument Maintenance supervisor; Paul Holden, Wholesale Operations Manager; Shyam Cheerla, Sr. Manager of IT for wholesale energy trading and risk management; Brian Zukauckas, HR leader; Joe Szczebak in chemical waste management; Justin DiBlasio, Relay Analyst; Christine Ormston, Digital Marketing & MarTech manager; Ralph Smith, Operations Training Instructor; and Deepti Mhadgut, Software Engineer.

Constellation Websiteconstellationenergy.com
Social Links
linkedIn
Phone Number410-470-2800
Industries
Constellation Headquarters Address1310 Point Street, Baltimore, MD, 21231 US
Company Size10000+ employees
SIC Code1382
NAICS Code213112 Support Activities for Oil and Gas Operations, 541360 Geophysical Surveying and Mapping Services
DMA CodeBaltimore Metropolitan Area
Founded1999
Estimated Annual Revenue$10B - 100B
Operating StatusSubsidiary
Updated:2026-09-16

Constellation Org Chart

Chief Executive Officer

Chief Executive Officer

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General Manager

T B
Tony Bunker

Business Development Manager

John Leimbach
John Leimbach

Business Development Manager

Grant Kleven
Grant Kleven

Business Development Manager

Competitors

Name
Founded
Type
Employees
1984Public
Company
1.0K - 5.0K
1903Public
Company
10K - 50K
1906Public
Company
10K - 50K
1882Public
Company
10K - 50K

Subsidiaries and Affiliated Companies

Estimated Website Traffic

The chart shows a decline in traffic to the constellationenergy.com website. In August, traffic decreased to 285358, compared to 337645 in the previous month. The highest traffic in 2026 was recorded in February, reaching 449763 visits.

Workforce Turnover

Number of employees switched from or switched to

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Total employee turnover

Departmental sample breakdown

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Turnover activity captured in SignalHire's departmental sample ( employees):

Length of Employment

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Constellation's workforce includes employees across a wide range of tenure levels.

2% have been with the company for less than 1 year20% have been with the company for 1 to 2 years34% have been with the company for 3 to 4 years14% have been with the company for 5 to 7 years5% have been with the company for 8 to 10 years26% have been with the company for more than 11 years

Former Employees: Role Changes

Role at Former Company
Role at New Company
Contact top employees from Constellation
Dan Sadler
Dan SadlerChief Information Security Officer & Vice President
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Joseph Downs
Joseph DownsVice President and Managing Counsel, Corporate and Commercial
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LaCondra Allen
LaCondra AllenPresident and Founder Alliance for African American Advancement (4A) Louisville
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Roslyn
RoslynVice President IT Corporate Systems and Services
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Andrew Freed
Andrew FreedSr Operations Training Instructor
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Holly Rich
Holly RichAssociate General Counsel
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Arielle Davenport
Arielle DavenportSenior Product Analyst
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Thomas Mcilroy III
Thomas Mcilroy IIIFirst Line Supervisor Instrument Maintenance
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Paul Holden
Paul HoldenManager - Wholesale Operations
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Shyam Cheerla MBA
Shyam Cheerla MBASr. Manager IT - Wholesale Energy Trading and Risk Managemt
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Lindsay Kavchok
Lindsay KavchokSenior Transportation Scheduler/Analyst
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LeTasha
LeTashaManager, Cyber Operational Technology Engineering
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Benjamin Tilley
Benjamin TilleyNuclear Maintenance Planner
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Patti Ponzi
Patti PonziProject Facilitator
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Hannah Chinelli
Hannah ChinelliMaterial Handler
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Dillon Kulchytsky
Dillon KulchytskyEngineer - 1
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Constellation Corporate Information: FAQ

Constellation operates in the Utility Supply industries. More details can be found on the official website: constellationenergy.com.
Constellation has offices located in Baltimore, US.
The headquarters of Constellation are located in Baltimore, United States.
The current CEO of Constellation is James McHugh
You can contact Constellation by phone at 410-470-2800.
Constellation currently employs 10000+ people.
Well-known competitors of Constellation include Dynegy, PSEG, American Electric Power and UGI Corporation.

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