Slack headquarters details
- Street address
- 500 Howard Street
- City
- San Francisco
- State / region
- California
- ZIP / postal code
- 94105-3000
- Country
- United States
- Phone
- +1 415 630 7943
- Founded
- 2009
- Website
- slack.com
Location map
Open in Google MapsAll Slack office locations
| City | State / region | Country | Type |
|---|---|---|---|
| San Francisco HQ | California | United States | Headquarters |
Showing the headquarters of 31 recorded locations. See every location in GraphIQ →
About Slack
Slack is headquartered in San Francisco, California, United States. Founded in 2009, the company has 31 recorded locations across 10+ countries and employs approximately 2,545 people worldwide.
Where is Slack's main office?
Slack's main headquarters office is located at 500 Howard Street, San Francisco, California 94105-3000, United States. This is the company's primary corporate address.
Slack regional offices
Beyond its headquarters in San Francisco, Slack has recorded locations in United States, Australia, Brazil, China, France, Ireland, Singapore, Thailand and 2 other countries.
Slack contact information
The main switchboard for Slack headquarters can be reached at +1 415 630 7943. Official website: slack.com.
What does Slack do?
Slack Technologies, LLC is an American software company founded in 2009 in Vancouver, British Columbia, known for its proprietary communication platform Slack. Outside its headquarters in San Francisco, California, Slack also operates offices in New York City, Denver, Toronto, London, Paris, Tokyo, Dublin, Vancouver, Pune, and Melbourne.
Slack competitors & similar companies
Frequently asked questions
Where is Slack headquarters?
Slack's headquarters is located at 500 Howard Street, San Francisco, California 94105-3000, United States.
How many offices does Slack have?
GraphIQ records 31 locations for Slack across 10+ countries, as of October 2026.
What is Slack's corporate address?
The corporate headquarters address is 500 Howard Street, San Francisco, California 94105-3000, United States.
When was Slack founded?
Slack was founded in 2009 and employs approximately 2,545 people.
What is Slack's phone number?
The main phone number for Slack headquarters is +1 415 630 7943.
How many employees does Slack have?
Slack has approximately 2,545 employees (GraphIQ estimate, 2026).