Block Inc. Headquarters Address, Corporate Office Location, and Contact Details

About

Block, Inc. — formerly Square, Inc. until its December 2021 rebrand — is an American financial technology holding company headquartered at 1955 Broadway, Suite 600, Oakland, California 94612, following its 2022 relocation from its longtime San Francisco address at 1455 Market Street. Block was founded in 2009 in San Francisco by Jack Dorsey and Jim McKelvey — originally as Square, Inc., launching the iconic Square card reader that allowed small businesses and individuals to accept credit card payments via smartphone — and went public in November 2015. In December 2021, Square, Inc. officially rebranded to Block, Inc. — a name reflecting its multi-business ecosystem structure — and subsequently relocated its principal offices from 1455 Market Street in San Francisco’s Mid-Market neighborhood to 1955 Broadway in Oakland.

Block operates as a holding company across multiple business lines: Square (merchant/seller ecosystem — payment hardware, POS software, and business tools); Cash App (consumer financial services — peer-to-peer payments, banking, investing, and Bitcoin); TIDAL (artist-owned music streaming); TBD (decentralized Bitcoin financial tools and open developer platform); and Bitkey (self-custody Bitcoin hardware wallet). Block employs 12,000+ people across 23 global office locations and has a distributed/remote-first culture. Jack Dorsey serves as CEO and co-founder.

Quick Facts

Founded

2009 (San Francisco, CA, as Square, Inc., by Jack Dorsey & Jim McKelvey)

Rebranded

December 2021 (Square, Inc. → Block, Inc.)

Current HQ

1955 Broadway, Suite 600, Oakland, CA 94612

Former HQ

1455 Market Street, Suite 600, San Francisco, CA 94103 (2012–2022)

NYSE ticker

XYZ

CEO

Jack Dorsey

Co-founder

Jim McKelvey

Business units

Square, Cash App, TIDAL, TBD, Bitkey

Employees

12,000+

US offices

13 (Oakland HQ + Atlanta, Boston, Chicago, Denver, Los Angeles, New York, Portland, Saint Louis, Salt Lake City, San Francisco, Scottsdale, Seattle)

Incorporated in

Delaware

What Brings You Here? Find the Right Contact

Square seller — payment dispute, account hold, or deactivation

Contact Square Seller Support at squareup.com/help or call 1-855-700-6000. For account deactivations — a common Square complaint — document your appeal in writing through the Square Dashboard.

Cash App — unauthorized transaction, account frozen, or money not received

Contact Cash App Support through the Cash App mobile app (Profile → Support) or at cash.app/help. For unauthorized transactions exceeding $50 on a debit transaction, also file with the CFPB at consumerfinance.gov/complaint.

Cash App Bitcoin complaint

For Cash App Bitcoin send/receive issues or disputes, contact Cash App Support through the app. For significant Bitcoin losses due to platform error, also file with the FTC at reportfraud.ftc.gov.

TIDAL subscription dispute

For TIDAL billing and subscription disputes, contact TIDAL Support at tidal.com/support.

Bitkey hardware wallet support

For Bitkey hardware wallet setup or recovery issues, contact Bitkey support at bitkey.world/support.

Investor relations (NYSE: XYZ)

Visit investors.block.xyz or write to Block, Inc., Investor Relations, 1955 Broadway, Suite 600, Oakland, CA 94612.

Media / press

Contact Block Communications at block.xyz/newsroom or the Oakland HQ.

Legal / subpoena

Serve Block, Inc., 1955 Broadway, Suite 600, Oakland, CA 94612. Block is incorporated in Delaware — confirm the registered agent at corp.delaware.gov.

Phone & Contact Directory

Square Seller Support

1-855-700-6000

Corporate HQ

1955 Broadway, Suite 600, Oakland, CA 94612

Former SF address (still cited in some databases)

1455 Market Street, San Francisco, CA 94103

Website

block.xyz

Square

squareup.com

Cash App

cash.app

Investor relations

investors.block.xyz

DFPI (CA) contact

Katie Barrera, 1955 Broadway, Suite 600, Oakland, CA 94612 | (415) 375-3176 

Corporate Headquarters & Office Addresses

Principal corporate headquarters (current)

Block, Inc.
1955 Broadway, Suite 600
Oakland, CA 94612
United States

Former corporate headquarters (2012–2022):
Block, Inc. (formerly Square, Inc.)
1455 Market Street, Suite 600
San Francisco, CA 94103
United States

US regional offices

• Atlanta, GA
• Boston, MA
• Chicago, IL
• Denver, CO
• Los Angeles, CA
• New York, NY
• Portland, OR
• Saint Louis, MO
• Salt Lake City, UT
• San Francisco, CA (in-office presence retained post-relocation)
• Scottsdale, AZ
• Seattle, WA

International offices

• Melbourne, Australia: 376–390 Collins St, Melbourne, VIC 3000
• Dublin, Ireland: One Park Place (opened 2026)
• Additional global offices across Europe, Asia-Pacific, and Canada

About the Oakland HQ and the San Francisco departure: Block’s 2022 departure from 1455 Market Street — its home since 2012 and one of San Francisco’s most iconic tech office buildings in the Mid-Market neighborhood — was part of a wave of major San Francisco tech companies reducing their SF footprints amid remote-work normalization, rising city taxes, and deteriorating mid-market conditions. The relocation to 1955 Broadway in Oakland — directly across the Bay — retained Block’s Bay Area identity while accessing Oakland’s lower cost base and its growing status as a tech hub. Oakland’s 1955 Broadway address is registered with the California DFPI (Department of Financial Protection and Innovation) as Block’s principal California financial services office, reflecting Cash App and Square’s regulatory footprint in the state.

How to Escalate a Complaint

1. Square sellers — appeal through Square Dashboard — For account deactivations, go to squareup.com/dashboard → Support → Contact Us. Document all communications in writing.
2. Cash App users — escalate through the app — Go to Profile → Support → Something Else for complex disputes.
3. File with the CFPB — For Cash App unauthorized transaction disputes and unresolved payment issues, the Consumer Financial Protection Bureau at consumerfinance.gov/complaint has direct regulatory authority over Block’s financial services products.
4. File with the FTC — For fraud-related complaints (scams, unauthorized charges), file at reportfraud.ftc.gov.
5. File with FinCEN — For suspicious financial activity or money transmission complaints, file with the Financial Crimes Enforcement Network at fincen.gov.
6. Mail to the Oakland HQ — Write to Block, Inc., Customer Relations, 1955 Broadway, Suite 600, Oakland, CA 94612.
7. File with the California DFPI — The California Department of Financial Protection and Innovation (dfpi.ca.gov) has direct licensing authority over Block’s California financial services operations. Contact: (415) 375-3176.
8. File with the BBB — Block, Inc. is listed with the BBB (Oakland/East Bay). File at bbb.org.
9. File with the California AG — The California AG’s consumer protection division is at oag.ca.gov. Block’s Oakland HQ makes the California AG a directly relevant authority.
10. Investor complaint — file with the SEC — For NYSE: XYZ securities concerns, file at sec.gov/tcr.