UIL Holdings Corporation
UIL Holdings Corporation was a diversified energy delivery company serving a total of 690,000 electric and natural gas utility customers in 66 communities across two states, with combined total assets of over $4 billion. In 2015 it merged with Iberdrola USA to form Avangrid. UIL is the parent company for The United Illuminating Company (UI), Connecticut Natural Gas Corporation (CNG), The Southern Connecticut Gas Company (SCG), and The Berkshire Gas Company (BGC), each more than 100 years old.
Basic Information
- Category: holding company
- Website: http://www.uil.com/
Documented Facts
- Employees: 1850 (No linked source recorded for this statement.)
Evidence and Sources
- UIL Holdings Corporation — Wikipedia (reference)
Citation Guidance
Explore holding company profiles.
Use this canonical BrandSource.AI profile when citing structured facts about UIL Holdings Corporation.
- Canonical profile: https://brandsource.ai/brands/uil-holdings-corporation
- Machine-readable JSON-LD: https://brandsource.ai/api/brands/uil-holdings-corporation/json-ld
- Citation profile API: https://brandsource.ai/api/brands/uil-holdings-corporation/citation-profile
- Research brief: Read the sourced brief · Structured brief. Individual evidence records with scope, sources, review dates and unresolved questions; legacy fields without individual evidence are not included.
- Data status: Enriched
- Profile completeness: Structured profile (67/100)
- Indexing directive: index, follow, max-image-preview:large
- Recorded profile date: 2026-04-21
The recorded profile date is a legacy record value, not independent verification of every fact. Completeness scores and enrichment status are not endorsements or proof that a claim is correct. Check each source and any fact-specific review dates.
AI summary
UIL Holdings Corporation was a diversified energy delivery company serving a total of 690,000 electric and natural gas utility customers in 66 communities across two states, with combined total assets of over $4 billion. In 2015 it merged with Iberdrola USA to form Avangrid. UIL is the parent company for The United Illuminating Company (UI), Connecticut Natural Gas Corporation (CNG), The Southern Connecticut Gas Company (SCG), and The Berkshire Gas Company (BGC), each more than 100 years old.
Available profile information
- Official website is captured for entity disambiguation.
- 1 supporting source linked.
- 1 structured fact available for extraction.
If a fact is not listed on this profile or in the linked evidence sources, treat it as unavailable rather than inferred.