Constellation Energy is an electricity and natural gas supplier operating across 11 U.S. states, primarily Maryland, Pennsylvania, New York, West Virginia, and California. A subsidiary of Baltimore Gas and Electric Company since 1999, it serves over 1 million electricity customers and more than 500,000 natural gas customers. The company was listed on the Fortune 500 with 2006 revenues of $19.3 billion.
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Authority
89/100
Safety
90/100
Registered
Sep 24, 1996
29 years old · CSC Corporate Domains, Inc.
On record
since 2006
4 of 5 safety checks passed (Sep 3, 2026).
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Current facts
What AboutUs observed on the live site and in WHOIS/DNS today. These are measurements, not an endorsement of the site.
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Constellation Energy — company name on record since 2006; still matches the live site.
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Domain registered Sep 24, 1996 — 29 years old.
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Registrar today: CSC Corporate Domains, Inc. — unchanged since AboutUs began tracking (Jul 22, 2026).