Insights

Sustainable scale Constellation Energy is the nation’s largest emissions-free energy producer with a nearly 90% carbon-free output. This positions the company as an ideal partner for large-scale clean energy projects, demand response programs, and long-term renewable energy procurement for enterprise clients seeking decarbonization.

Enterprise footprint Serving three-fourths of Fortune 100 and a broad base of businesses, Constellation has extensive commercial and public-sector relationships. This creates opportunities for upselling bundled energy services, managed services, and energy efficiency solutions across large account portfolios.

Technology backbone The tech stack featuring EnergyPlus, CCSP, AngularJS and GitHub indicates a modern, systems-driven approach to energy management. This opens doors for selling digital energy management tools, analytics platforms, and integration services for smart grids and customer-facing energy dashboards.

Financial scale With revenue in the billions and substantial funding, Constellation has the firepower to invest in large renewable projects, grid modernization, and strategic partnerships. This supports sales conversations around joint ventures, project financing, and long-term PPAs.

Sustainability leadership The emphasis on a reliable, sustainable energy future, plus a vast nuclear and renewable capacity, signals strong alignment with customers pursuing ESG goals. This creates opportunities for sustainability consulting, decarbonization roadmaps, and compliant procurement for public and private sector clients.

Constellation Tech Stack

Constellation uses 8 technology products and services including EnergyPlus, CCSP, GitHub, and more. Explore Constellation's tech stack below.

  • EnergyPlus
    Advanced Analytics And Data Science
  • CCSP
    Certificates
  • GitHub
    Communication And Collaboration
  • AngularJS
    Javascript Frameworks
  • Cisco Firepower
    Network Hardware
  • JavaScript
    Programming Languages
  • VersionOne
    Project Management
  • Microsoft Visual Basic for Applications
    Software Development

Media & News

Constellation's Email Address Formats

Constellation uses at least 3 format(s):
Constellation Email FormatsExamplePercentage
First.Last@cengllc.comJohn.Doe@cengllc.com
73%
Last@cengllc.comDoe@cengllc.com
20%
Last.First@cengllc.comDoe.John@cengllc.com
5%
F.Last@cengllc.comJ.Doe@cengllc.com
2%
First.Last@constellation.comJohn.Doe@constellation.com
95%
Last.First@constellation.comDoe.John@constellation.com
3%
LF@constellation.comDJ@constellation.com
1%
First@constellation.comJohn@constellation.com
1%
First.Last@constellationenergy.comJohn.Doe@constellationenergy.com
98%
First.Middle@constellationenergy.comJohn.Michael@constellationenergy.com
2%

Frequently Asked Questions

What is Constellation's phone number?

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You can contact Constellation's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Constellation's stock symbol?

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Constellation is a publicly traded company; the company's stock symbol is STZ-B.

What is Constellation's official website and social media links?

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Constellation's official website is constellationenergy.com and has social profiles on LinkedIn.

How much revenue does Constellation generate?

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As of July 2026, Constellation's annual revenue is estimated to be $10B+.

What is Constellation's NAICS code?

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Constellation's NAICS code is 22 - Utilities.

How many employees does Constellation have currently?

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As of July 2026, Constellation has approximately 13K employees across 6 continents, including North AmericaEuropeAsia. Key team members include Chief Executive Officer: E. B.Chief Executive Officer: J. L.Chief Executive Officer: M. B.. Explore Constellation's employee directory with LeadIQ.

What industry does Constellation belong to?

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Constellation operates in the Utilities industry.

What technology does Constellation use?

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Constellation's tech stack includes EnergyPlusCCSPGitHubAngularJSCisco FirepowerJavaScriptVersionOneMicrosoft Visual Basic for Applications.

What is Constellation's email format?

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Constellation's email format typically follows the pattern of First.Last@cengllc.com. Find more Constellation email formats with LeadIQ.

How much funding has Constellation raised to date?

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As of July 2026, Constellation has raised $5B in funding. The last funding round occurred on Jun 01, 2026.
Constellation logo

Constellation

UtilitiesMaryland, United States10001+ Employees

Constellation Energy Corporation, a Fortune 200 utilities company, is headquartered in Baltimore, Maryland. It is described as the nation’s largest producer of reliable, emissions-free energy and a major supplier to businesses, homes, and public sector customers nationwide. Its generation mix includes hydro, wind, and solar facilities alongside the country’s largest nuclear fleet, yielding nearly 90% carbon-free output. The company reports a generating capacity sufficient to power about 16 million homes and accounts for roughly 10% of the nation’s clean energy. The address is 1310 Point Street, Baltimore, Maryland 21231. It emphasizes investing in innovative technologies to support the transition to a reliable, sustainable, and secure energy future.

Section iconCompany Overview

Phone number
Stock Symbol
STZ-B
NAICS Code
22 - Utilities
Employees
10001+

Section iconFunding & Financials

  • $5B

    Constellation has raised a total of $5B of funding over 3 rounds. Their latest funding round was raised on Jun 01, 2026as a post_ipo_secondary.

  • $10B+

    Constellation's revenue is estimated to be in the range of $10B+

Section iconFunding & Financials

  • $5B

    Constellation has raised a total of $5B of funding over 3 rounds. Their latest funding round was raised on Jun 01, 2026as a post_ipo_secondary.

  • $10B+

    Constellation's revenue is estimated to be in the range of $10B+

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