Square Headquarters Address, Corporate Office Location, and Contact Details
Square corporate headquarters is located at 1455 Market Street, Suite 600, San Francisco, CA 94103, United States, in San Francisco’s Mid‑Market neighborhood, where the company occupies a 320,000 square‑foot campus built across four floors of a former Bank of America data center. Square’s corporate office oversees a suite of commerce and financial services tools used by millions of sellers across the U.S. and internationally, including payment processing, point‑of‑sale hardware, payroll, invoicing, and integrated business software. Sellers, merchants, developers, investors, and media regularly need the Square corporate office address and Square contact details for account disputes, complaints, business enquiries, and press matters.
Quick Facts
Corporate Headquarters Address
Square, Inc., 1455 Market Street, Suite 600, San Francisco, CA 94103, United States
Customer and Seller Support Number
1‑855‑700‑6000
BBB‑Listed Additional Phone Number
+1 415‑375‑3268
Parent Company
Block, Inc. (formerly Square, Inc.)
Official Website
squareup.com
Press Contact Email
press@squareup.com
Founded
2009, St. Louis, Missouri, by Jack Dorsey and Jim McKelvey
Industry
Financial technology (fintech) — payment processing, point‑of‑sale, and commerce software
Square Corporate Headquarters Address
The primary Square corporate headquarters address is Square, Inc., 1455 Market Street, Suite 600, San Francisco, CA 94103, United States, as listed on the BBB and widely cited across corporate directories. The headquarters campus at 1455 Market Street was designed by Bohlin Cywinski Jackson in two phases and spans 320,000 square feet across four floors, housing engineering, product, sales, and corporate teams in an open, light‑filled environment that reflects Square’s brand identity. Some recent sources also reference 1955 Broadway, Suite 600, Oakland, CA, as a listed Square corporate address, which likely reflects a regional or subsidiary office operated under the broader Block, Inc. corporate structure.
Square Customer Service and Seller Support Number
The main Square seller support number is 1‑855‑700‑6000, which connects merchants and sellers to Square’s support team for account issues, payment disputes, hardware questions, and general product support. Square also provides 24/7 support options through the Seller Dashboard at squareup.com, where sellers can access live chat, email support, and a comprehensive help center covering all Square products and services. For privacy‑related enquiries and data requests, Square maintains a dedicated privacy team contact form at squareup.com/us/en/legal/general/privacy‑team.
How to Contact Square Corporate Office
For everyday Square account issues, payment disputes, hardware problems, or seller support, start by using the Seller Dashboard at squareup.com or calling 1‑855‑700‑6000, as Square’s seller support team handles the majority of merchant enquiries directly. If your Square complaint is not resolved through standard seller support, escalate by sending written correspondence to Square, Inc., 1455 Market Street, Suite 600, San Francisco, CA 94103, including your Square account email, a clear description of the issue, and any prior support case reference numbers. For media and press enquiries, contact Square’s press team at press@squareup.com, and for investor and corporate‑level communications, use the investor relations channels available through Block, Inc. at investors.block.xyz, as Square operates as a product brand under the Block, Inc. parent company.
About Square
Square was founded in 2009 in St. Louis, Missouri, by Jack Dorsey and Jim McKelvey, initially as a simple card reader that allowed anyone with a smartphone to accept credit card payments. Since then, Square has grown into a comprehensive commerce platform offering point‑of‑sale hardware and software, online stores, inventory management, payroll, invoicing, loyalty programs, and the Cash App ecosystem, serving millions of businesses of all sizes across the U.S., Canada, Australia, Japan, the UK, and Ireland. Square’s corporate headquarters in San Francisco operates under Block, Inc. — the parent company formed in December 2021 when Square, Inc. rebranded to reflect its broader portfolio of businesses including Cash App, Afterpay, and TIDAL.
Frequently Asked Questions
Where is the Square corporate headquarters located?
Square corporate headquarters is located at 1455 Market Street, Suite 600, San Francisco, CA 94103, United States, in the Mid‑Market neighborhood of San Francisco.
What is the Square customer service number?
The main Square seller support number is 1‑855‑700‑6000, and sellers can also access 24/7 chat and email support through the Seller Dashboard at squareup.com.
Who owns Square?
Square is owned by Block, Inc. — formerly known as Square, Inc. — which also owns Cash App, Afterpay, and TIDAL. Block, Inc. is publicly listed and trades under the ticker SQ on the NYSE.
How do I contact Square corporate office?
To contact Square corporate office, call 1‑855‑700‑6000 for seller support, email press@squareup.com for media enquiries, or write to Square, Inc., 1455 Market Street, Suite 600, San Francisco, CA 94103, including your account details and the nature of your enquiry.
How do I make a complaint to Square corporate office?
To make a complaint to Square corporate office, first contact seller support at 1‑855‑700‑6000 or via the Seller Dashboard to log your issue and obtain a case number, then escalate in writing to Square, Inc., 1455 Market Street, Suite 600, San Francisco, CA 94103 if the matter remains unresolved.