Company Insights
Published on
April 22, 2026

How Many People Work at Constellation? Headcount and Employee Trends

Total Employees
352
7.2% from last year
0
New Hires (YTD)
127
5% of total workforce
Departments
18
650 in Engineering
Locations
401
5,012 in New York, NY
  • Constellation Energy Corporation (Nasdaq: CEG), headquartered in Baltimore, Maryland, is the largest producer of electricity in the U.S., focusing on clean energy solutions through its extensive nuclear, natural gas, and geothermal fleets.
  • In January 2026, Constellation completed its acquisition of Calpine Corporation, enhancing its generation portfolio and commercial platform to better serve the growing demand for reliable, clean electricity.
  • Key customers include major tech companies like Microsoft and Meta, with long-term agreements that leverage Constellation's expanded energy portfolio to support their operations.
  • Ideal buyers are large enterprises in the technology and manufacturing sectors facing increasing energy demands, as Constellation provides reliable, clean power solutions that address their sustainability goals and operational efficiency needs.

Constellation Headcount Breakdown by Department

Constellation's workforce is organized across 18 departments, with a notable concentration in Operations, which leads with a headcount of 620. Information Technology follows closely with 589 employees, reflecting the company’s emphasis on technical capabilities. The Sales department, with 190 employees, also plays a critical role in driving revenue. This distribution indicates a strong operational and technological foundation, essential for sustaining growth in the software development sector.

Operations
620
Information Technology
589
Sales
190
Executive
173
Finance
163
Engineering
153
Human Resources
79
Education
72
Marketing
41
Other
979

Constellation Employees by Location

The company operates across 401 locations, with significant concentrations in urban centers. Chicago, IL, is the largest hub, employing 451 individuals, followed by Baltimore, MD, with 174 employees. The presence of a substantial 'Other' category, accounting for 1,405 employees, suggests a distributed workforce model, allowing for flexibility in operations and access to diverse talent pools across various regions.

Chicago, IL
451
Baltimore, MD
174
Bayside, NY
73
Houston, TX
45
Villa Park, IL
39
Fort Washington, PA
36
Frederick, MD
30
Kennett Square, PA
29
Sugar Land, TX
27
Other
1405
Get more information on people and companies with Unify

Unify is an all-in-one platform for intent data, enrichment, prospecting, and account research. Learn more about Constellation and other companies with our data sources and AI agents.

Get started with Unify