Washington Gas headquarters details
- Street address
- 350 Hillandale Rd
- City
- Winchester
- State / region
- Virginia
- ZIP / postal code
- 22602-2485
- Country
- United States
- Phone
- +1 301 228 2677
- Founded
- 1848
- Website
- wgl.com
- linkedin.com/company/wgl
Location map
Open in Google MapsAll Washington Gas office locations
| City | State / region | Country | Type |
|---|---|---|---|
| Winchester HQ | Virginia | United States | Headquarters |
Showing the headquarters of 28 recorded locations. See every location in GraphIQ →
About Washington Gas
Washington Gas is headquartered in Winchester, Virginia, United States. Founded in 1848, the company has 28 recorded locations across 3+ countries and employs approximately 1,444 people worldwide.
Where is Washington Gas's main office?
Washington Gas's main headquarters office is located at 350 Hillandale Rd, Winchester, Virginia 22602-2485, United States. This is the company's primary corporate address.
Washington Gas regional offices
Beyond its headquarters in Winchester, Washington Gas has recorded locations in United States, Brazil and Japan.
Washington Gas contact information
The main switchboard for Washington Gas headquarters can be reached at +1 301 228 2677. Official website: wgl.com.
What does Washington Gas do?
WGL Holdings, Inc., is a public utility holding company that serves more than 1 million customers in the District of Columbia, Maryland, and Virginia. A subsidiary of AltaGas, it provides natural gas, electricity, sustainable energy, carbon neutrality and energy services, and also is engaged in natural gas exploration, production, and storage. The company operates four divisions: Washington Gas, WGL Energy, WGL Midstream, and Hampshire Gas.
Frequently asked questions
Where is Washington Gas headquarters?
Washington Gas's headquarters is located at 350 Hillandale Rd, Winchester, Virginia 22602-2485, United States.
How many offices does Washington Gas have?
GraphIQ records 28 locations for Washington Gas across 3+ countries, as of October 2026.
What is Washington Gas's corporate address?
The corporate headquarters address is 350 Hillandale Rd, Winchester, Virginia 22602-2485, United States.
When was Washington Gas founded?
Washington Gas was founded in 1848 and employs approximately 1,444 people.
What is Washington Gas's phone number?
The main phone number for Washington Gas headquarters is +1 301 228 2677.
How many employees does Washington Gas have?
Washington Gas has approximately 1,444 employees (GraphIQ estimate, 2026).