Cisco headquarters has two answers, and both are correct. On paper — in every SEC filing, including the annual report filed in September 2026 — Cisco Systems, Inc. is headquartered at 170 West Tasman Drive, San Jose, CA 95134. In practice, the company’s own contact page now lists a corporate headquarters address at 3098 Olsen Drive in San Jose’s Santana Row district, the six-story building Cisco inherited when it bought Splunk. Below you will find both addresses, the verified 24/7 technical support and sales phone numbers, every official support channel, and the steps that actually work when a support case stalls and you need to escalate.
| Headquarters | Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706, United States (principal executive office per SEC filings) |
| Corporate office | 3098 Olsen Drive, San Jose, CA 95128 (Santana Row; listed on cisco.com as the corporate headquarters address) |
| Corporate switchboard | (408) 526-4000 (not a customer service line) |
| Technical support (TAC) | 1-800-553-2447 (24 hours a day, 7 days a week, U.S. and Canada) |
| Sales | 1-800-553-6387 (U.S. and Canada) |
| Small business support | 1-866-606-1866 (U.S. and Canada) |
Cisco Headquarters Location and Contact Information
Cisco Systems, Inc. lists 170 West Tasman Drive, San Jose, California 95134-1706 as the address of its principal executive offices, with (408) 526-4000 as the telephone number at that location. That is the address on the cover of the company’s annual report for fiscal 2026, filed with the SEC on September 2, 2026, and it remains the legal mailing address for the company. The North San Jose campus along Tasman Drive has been Cisco’s home for decades, though the footprint has been shrinking: in late 2025 Cisco sold four of its older North San Jose office buildings, keeping a right to reacquire two of them.
Meanwhile, Cisco’s official contact page gives a different “corporate headquarters address”: 3098 Olsen Drive, San Jose, CA 95128, at Santana Row on the west side of the city. Cisco consolidated its Bay Area corporate staff there in 2024 and 2025, after acquiring the building’s tenant, Splunk. Neither address is a customer service location: you cannot walk in for technical support, returns, or sales at either building, and the (408) 526-4000 switchboard is a corporate reception line, not a help desk. For product help, use the TAC numbers below or the online support channels described further down.
Phone Contacts
Cisco runs separate lines for technical support, sales, and small business customers, and the right number depends on what you own and whether you have a service contract. These numbers come from Cisco’s official worldwide support contacts page and its contact page:
- Technical Assistance Center (TAC), enterprise and service provider products: 1-800-553-2447 (U.S. and Canada) or 1-408-526-7209 — around the clock
- Small business products support: 1-866-606-1866 (U.S. and Canada)
- Sales: 1-800-553-6387, or 1-888-852-2726 and press 1
- Orders and billing: 1-888-852-2726 and press 2, then 1
- Webex support: +1-888-469-3239, listed on the Webex Help contact page
- Worldwide TAC access point (outside North America): +32 2 704 5555
- Corporate switchboard (not customer service): (408) 526-4000
Cisco asks callers to have their Cisco.com user ID, service contract number, and device serial number ready before contacting support — without a valid contract, TAC will generally redirect you to your reseller or to the free community forums. Sales callbacks requested through the website are handled Monday through Friday, 8 AM to 5 PM Eastern.
Customer Service and Support Channels
Because Cisco sells mostly to businesses through partners, phone support is only part of the picture. Customers with a service contract can open and track a TAC case online through Support Case Manager (linked from the worldwide contacts page), which lets you attach logs and choose a severity level up front — usually faster than starting by phone for anything that is not a network-down emergency. The Cisco Community is the free option: peer users and Cisco engineers answer configuration and troubleshooting questions there, and no contract is required.
If you bought hardware through a reseller, that reseller is often the fastest route for licensing, returns, and warranty questions; Cisco’s Partner Locator finds authorized partners near you. Webex users have their own support site at help.webex.com with a chat assistant, knowledge base, and service status page. Investors can reach the company through investor.cisco.com or [email protected], and journalists through the newsroom media contacts page (U.S. press inquiries go to [email protected]). One practical tip: TAC is staffed 24/7, so the shortest waits are not about the time of day — they are about having the contract and serial number ready and picking the correct severity when you open the case.
Company Background
Cisco was founded in 1984 by Leonard Bosack and Sandy Lerner, two Stanford University computer staffers who commercialized the multiprotocol router that let the campus’s incompatible networks talk to each other. The name is short for San Francisco, and the logo is a stylized Golden Gate Bridge. The company went public in 1990 and rode the growth of the internet to become the dominant supplier of the switches and routers that carry most of the world’s network traffic. It was incorporated in California in 1984 and reincorporated in Delaware in 2021.
Today Cisco trades on the Nasdaq Global Select Market under the ticker CSCO. For fiscal 2026, which ended July 25, 2026, the company reported record revenue of $63.3 billion, up 12% from $56.7 billion the year before, driven by AI data center networking demand; networking alone brought in $34.7 billion. Cisco employed approximately 82,400 people as of the end of the fiscal year. Its largest acquisition ever closed on March 18, 2024, when it bought the cybersecurity and observability company Splunk for $157 per share in cash — roughly $27 billion in merger consideration, announced as a $28 billion deal. Other well-known Cisco brands include Webex collaboration software, Meraki cloud-managed networking, and the Duo, Umbrella, and ThousandEyes security and observability products.
Leadership
Chuck Robbins has served as Chief Executive Officer since July 2015 and as Chair of the Board since December 2017; he joined Cisco in 1997 and came up through its sales organization. Mark Patterson is Executive Vice President and Chief Financial Officer, and Jeetu Patel is President and Chief Product Officer. Cisco Systems, Inc. is a Delaware corporation — our Delaware business search guide explains how to look up its registration — and, as a California-headquartered company, it is also registered as a foreign corporation with the state; see our California business search guide for how to check that record.
Key Office Locations
San Jose is the global headquarters, but Cisco runs two regional headquarters as well: Amsterdam, Netherlands for Europe, the Middle East, and Africa, and Singapore for Asia Pacific, Japan, and China. In the United States the company owns major campuses in Research Triangle Park, North Carolina and Richardson, Texas, in addition to the San Jose area sites. Other significant Cisco locations, mostly leased, are in Australia, Belgium, Canada, China, Germany, India, Israel, Norway, Poland, and the United Kingdom. Splunk’s former San Francisco headquarters was folded into the Santana Row hub as part of the 2024 consolidation.
Dealing with Customer Complaints
Start with the standard channel: open a TAC case by calling 1-800-553-2447 or through Support Case Manager, and write down the case number and the severity level assigned. If the case is not progressing, the first escalation happens inside TAC — ask the engineer handling your case to raise its severity or to escalate it to a TAC manager, and make sure the business impact is documented in the case notes. Most stalled cases are resolved at this stage once the impact is clear.
If that fails, put the complaint in writing to the corporate office: Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134, quoting the case number, the dates, and what you are asking for. Cisco is not overseen by a product-specific federal regulator the way a bank or an airline is, so for a consumer-type dispute — a purchase from Cisco’s store, a subscription that will not cancel, a refund that never arrived — the next stop is the Federal Trade Commission at reportfraud.ftc.gov and your state attorney general’s consumer protection office. For contract disputes between businesses, check your purchase agreement or Cisco end-user license for the dispute resolution clause; small-claims court or arbitration remains the option of last resort.
Summary
Cisco’s headquarters of record is 170 West Tasman Drive, San Jose, CA 95134, while its day-to-day corporate office sits at 3098 Olsen Drive in Santana Row — but virtually everything a customer needs happens through other channels: 1-800-553-2447 for 24/7 technical support, 1-800-553-6387 for sales, Support Case Manager and the Cisco Community online, and the FTC or your state attorney general if escalation is needed. Looking for another company’s corporate contacts? Browse our other headquarters guides.
Frequently Asked Questions
Where is Cisco’s headquarters located?
Cisco Systems, Inc. is headquartered at 170 West Tasman Drive, San Jose, CA 95134-1706, United States, according to its SEC filings. Cisco’s website also lists a corporate headquarters address at 3098 Olsen Drive, San Jose, CA 95128, in the Santana Row district.
Did Cisco move its headquarters?
Partly. Cisco’s legal headquarters and SEC filing address remain 170 West Tasman Drive in North San Jose, but in 2024 and 2025 the company consolidated its Bay Area corporate staff into the former Splunk building at 3098 Olsen Drive, Santana Row, and sold four older North San Jose buildings in December 2025. Both addresses are in San Jose.
What is Cisco’s customer service phone number?
For technical support, call the Cisco TAC at 1-800-553-2447 (U.S. and Canada), available 24/7. Small business product owners call 1-866-606-1866, and sales inquiries go to 1-800-553-6387.
How do I contact the Cisco corporate office?
Write to Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134, or call the corporate switchboard at (408) 526-4000. The switchboard is not a customer service line; product support is handled by the TAC.
Who is the CEO of Cisco?
Chuck Robbins is Chair and Chief Executive Officer. He has been CEO since July 2015 and Chair of the Board since December 2017.
Who owns Cisco?
Cisco is a publicly traded company listed on the Nasdaq under the ticker CSCO, so it is owned by its shareholders. It is incorporated in Delaware and has no controlling parent company.
How do I file a complaint against Cisco?
Open a TAC case first and ask for escalation if it stalls, then write to the corporate office at 170 West Tasman Drive, San Jose, CA 95134. Unresolved consumer disputes can be reported to the FTC at reportfraud.ftc.gov or to your state attorney general.