1 Microsoft Way Redmond WA 98052: HQ Address & Facts

The address 1 Microsoft Way, Redmond, WA 98052 is the corporate headquarters of Microsoft Corporation. Microsoft’s own annual report writes it as One Microsoft Way, Redmond, Washington 98052-6399. The two forms point to the same place. Which one you should use depends on what you are filling in.

This guide covers the exact address and ZIP+4, where Redmond sits relative to Seattle, and how Microsoft’s founding date and relocations fit together. It also covers current company facts, the state of public access to the campus, and how to get there. A short section at the end covers how to handle an address like this in B2B sales research, where small formatting differences turn into messy data.

Figures are current as of November 2026 unless a date is given.

Microsoft’s Headquarters Address (Quick Answer)

Detail	Value
Company	Microsoft Corporation
Official address	One Microsoft Way, Redmond, Washington 98052-6399
Common short form	1 Microsoft Way, Redmond, WA 98052
Main corporate phone	(425) 882-8080
Source	Cover page of Microsoft’s Form 10-K for the fiscal year ended June 30, 2026

If a form asks for Microsoft’s address, use this one. If you need help with a product or account, the headquarters line is usually the wrong channel. The contact section below explains why.

“1 Microsoft Way” or “One Microsoft Way”?

Both spellings refer to the same street address. Microsoft spells out the number in its official filings, while forms, directories, and maps often use the numeral.

• Use “One Microsoft Way” when quoting the official corporate address in a legal, financial, or editorial context.
• Use “1 Microsoft Way” when a form or database expects a numeric street number.
• Add the ZIP+4 (98052-6399) when matching Microsoft’s own filing. The five-digit 98052 is accepted almost everywhere else.

If your systems treat “1” and “One” as different strings, you will create duplicate records for the same company. The sales research section below covers a simple fix.

Is Microsoft Headquartered in Redmond or Seattle?

Microsoft is headquartered in Redmond, not Seattle. Redmond is a city on the Eastside of the Seattle metropolitan area, across Lake Washington from Seattle itself. The annual report places the headquarters in Redmond and describes its main facilities as located in King County, Washington.

People search for “Microsoft Seattle” for a few reasons. “Seattle” is a convenient label for the whole metro area. The campus is linked to Seattle by the State Route 520 freeway. And since March 2026, Sound Transit’s light rail has run directly from Seattle to a station on the Microsoft campus, which makes the two places feel closer than they used to.

Does Microsoft Have a Seattle Office?

Microsoft has leased space in downtown Seattle in the past. In 2007, for example, it leased roughly 170,000 square feet across three buildings and expected more than 1,400 people to work downtown. Later reporting described Microsoft leaving at least one Seattle building.

We could not confirm a current Microsoft office in Seattle proper, so this guide does not list one. Treat any specific Seattle address you find online with caution until you have checked it against Microsoft’s website. For planning purposes, assume Microsoft’s main presence in the area is the Redmond campus.

When Was Microsoft Founded?

Microsoft was founded on April 4, 1975, by Bill Gates and Paul Allen in Albuquerque, New Mexico. The two had learned about the Altair 8800 microcomputer in late 1974 and set out to write software for it. Albuquerque was home to the Altair’s maker, MITS, so that is where the company began.

When Was Microsoft Formed, and Is That a Different Date?

“When was Microsoft formed” is usually the same question in different words. April 4, 1975 is the date generally given for the day Gates and Allen formed their partnership. The company was first spelled “Micro-Soft,” a blend of “microcomputer” and “software,” a name credited to Allen. The hyphen dropped later.

From Albuquerque to Bellevue to Redmond

Date	Event	Location
April 4, 1975	Company founded as a partnership	Albuquerque, New Mexico
January 1, 1979	Company relocates	Bellevue, Washington
February 26, 1986	Company moves onto its new campus	Redmond, Washington

The move out of Albuquerque was driven by hiring: it was hard to recruit top programmers to New Mexico. Washington State was also where both founders grew up.

The Redmond move came when the company needed more room. It was reported in January 1985, and Microsoft moved in on February 26, 1986, a few weeks before its initial public offering on March 13, 1986.

The first Redmond campus was small by today’s standards: about 30 acres and six buildings, built for roughly 800 employees. A major expansion in 1992 brought the campus to about 1.7 million square feet of office space on roughly 260 acres.

What the Redmond Campus Looks Like Today

Microsoft’s annual report gives the most reliable current picture. The company has about 14 million square feet of space in King County for engineering, sales, marketing, operations, and administration. About 12 million square feet is owned, on roughly 520 acres Microsoft owns at its headquarters. About 2 million square feet is leased.

You will see other numbers online that do not match:

• Some references give about 502 acres and 83 buildings. That building count dates from 2018.
• Other pages cite higher building counts that mix the campus with Microsoft’s wider Puget Sound footprint.
• Older pages quote on-campus headcounts from earlier years.

These gaps come from dates and definitions rather than outright errors. If you need a figure to cite, use the annual report’s acreage and square footage, and be cautious about any single building count.

The campus has also been rebuilt. In 2017, Microsoft announced plans to replace 12 older East Campus buildings with 18 new ones, laid out like an urban neighborhood with open space, sports fields, retail, and trails. That is why photos and descriptions from before 2019 often no longer match the campus.

Microsoft Company Information at a Glance

Item	Detail
Legal name	Microsoft Corporation
Headquarters	One Microsoft Way, Redmond, WA 98052-6399
Founded	April 4, 1975, Albuquerque, New Mexico
Founders	Bill Gates and Paul Allen
State of incorporation	Washington
Stock listing	MSFT on NASDAQ
Fiscal year ends	June 30
Full-time employees	About 223,000 as of June 30, 2026 (about 121,000 in the U.S., 102,000 internationally)
Fiscal 2026 revenue	$331.8 billion, up 18% from the prior year

Two notes on these numbers. First, headcount is a snapshot. The June 2026 figure was down about 5,000 from a year earlier, the first annual decline in a decade, and the company has since announced further workforce changes, including job cuts in July and a voluntary exit offer reported in October. Cite 223,000 as a June 30, 2026 figure, not as today’s headcount.

Second, some third-party pages still show 221,000 or similar. That matches an older reporting year and should not be used for current claims.

Can You Visit Microsoft Headquarters?

Public access has changed recently, and many guides are out of date.

• The Visitor Center has permanently closed. Microsoft confirmed in early 2026 that it had closed the Building 92 Visitor Center and was repurposing its assets across the campus. For years it was the main public attraction, with interactive demos and a company history exhibit.
• The Microsoft Store in Building 92 stayed open. Microsoft said at the time that it was the last public-facing space in the building and that no changes were planned. Confirm current hours before you go.
• Most of the campus is employee-only. Office buildings require badge access.
• Executive and customer visits are by invitation. Microsoft opened Experience Center One in 2025, a four-story building where invited customers and dignitaries get curated demonstrations.
• We found no current public campus tour program. Check Microsoft’s official channels before planning a trip around one.

Older listings still point visitors to the former Visitor Center address on Northeast 36th Street, and some map listings show weekday hours that appear to date from that era. Do not rely on them.

How to Get to One Microsoft Way

By Light Rail

Redmond Technology Station sits on the Microsoft campus next to State Route 520, and light rail service there began on April 27, 2024. The 2 Line was extended to Downtown Redmond on May 10, 2025, and its Crosslake Connection opened on March 28, 2026, so trains now run between Seattle and Redmond across Lake Washington. At launch, trains over the lake were planned to run every 10 minutes from about 5 a.m. to midnight, seven days a week. Check Sound Transit for the current timetable.

A pedestrian bridge over State Route 520 connects the station to the west campus. Microsoft also runs its own shuttle service between campus buildings.

By Car or Bus

State Route 520 links Redmond with Bellevue and Seattle, and driving remains the most flexible option for many visitors. King County Metro and Sound Transit buses also serve the campus area, so check route maps for current service.

If you are heading to the Microsoft Store, search for Building 92 specifically rather than only the headquarters address. The campus is large, and a general headquarters pin does not tell you where visitor-facing spaces are.

How to Contact Microsoft’s Headquarters

Microsoft’s annual report lists the main corporate phone number as (425) 882-8080 and points to the company’s investor relations site. Those are the right starting points for corporate, investor, and formal business inquiries.

For most other needs, the headquarters line is the wrong channel:

• Product or account problems: use the support resources on Microsoft’s website. A switchboard cannot fix a licensing or sign-in problem.
• Sales and partnerships: go through the relevant business unit or sales channel rather than the corporate address.
• Formal or legal notices: confirm the correct recipient and delivery requirements with the company or your counsel before sending anything to the headquarters address.

Be wary of other phone numbers shown on maps and directory sites. Unless you can tie a number to Microsoft’s own pages, treat it as unverified.

Microsoft’s Other Locations Beyond Redmond

Redmond is the center of operations, but not the only site.

• Washington State: Microsoft has had offices in Bellevue and Issaquah, and has leased space around the Puget Sound region over the years. Its footprint changes, so verify any specific building before citing it.
• International: The annual report names China, India, Ireland, the Netherlands, and Sweden among the largest owned international properties. It names Australia, Canada, China, France, Germany, India, Ireland, Japan, the Netherlands, and the United Kingdom among the largest leased ones.

For a specific office, start with Microsoft’s own website. It will be more current than most third-party directories.

Why a Headquarters Address Matters in B2B Sales Research

For sales teams, an address like One Microsoft Way is a useful corporate record that is easy to misuse. A few habits keep it useful:

1. Treat headquarters as an account attribute, not a buying location. At a company this size, purchasing is spread across business units and regions. Mail sent to the corporate address rarely reaches a decision maker.
2. Normalize address variants. Store “One Microsoft Way,” “1 Microsoft Way,” and “1 Microsoft Way Redmond WA 98052” under one canonical form so your CRM does not create duplicate accounts.
3. Separate address types. Keep headquarters, billing, and ship-to addresses in different fields. They can differ even within one company.
4. Verify the legal entity. For contracts and compliance, confirm the exact entity name in the company’s filings. A parent corporation and a regional subsidiary are different parties.
5. Date your data. Headcount, building counts, and office lists go stale quickly. Record when you captured them.

These habits apply to any large account, not just Microsoft. The same address spelled three ways across three spreadsheets is one of the most common causes of messy account data.

Frequently Asked Questions

What is Microsoft’s headquarters address?
One Microsoft Way, Redmond, Washington 98052-6399. It is commonly written as 1 Microsoft Way, Redmond, WA 98052.

Is it “1 Microsoft Way” or “One Microsoft Way”?
Both refer to the same address. Microsoft’s official filings spell out “One,” while forms and maps often use the numeral.

What is the ZIP code for Microsoft’s headquarters?
The ZIP code is 98052. Microsoft’s annual report uses the extended ZIP+4, 98052-6399.

When was Microsoft founded, and where?
Microsoft was founded on April 4, 1975, by Bill Gates and Paul Allen in Albuquerque, New Mexico.

When was Microsoft formed as a company?
The date generally cited is also April 4, 1975, when Gates and Allen formed their partnership. The “Micro-Soft” name followed shortly afterward.

Is Microsoft headquartered in Seattle?
No. The headquarters is in Redmond, on the Eastside of the Seattle metropolitan area.

Does Microsoft have an office in Seattle?
Microsoft has leased space in downtown Seattle in the past, but we could not confirm a current Seattle office. Its main presence in the area is the Redmond campus.

Can I take light rail from Seattle to Microsoft headquarters?
Yes. Since the Crosslake Connection opened on March 28, 2026, the 2 Line runs between Seattle and Redmond Technology Station, which is on the Microsoft campus. Check Sound Transit for current schedules.

Can I tour Microsoft headquarters?
The Visitor Center has permanently closed. The Microsoft Store in Building 92 stayed open when the closure was announced, but most of the campus is employee-only, and we found no current public tour program.

What is Microsoft’s headquarters phone number?
The main corporate number listed in Microsoft’s annual report is (425) 882-8080. For product support, use the resources on Microsoft’s website instead.

How many people work for Microsoft?
About 223,000 full-time employees as of June 30, 2026, about 121,000 of them in the U.S. This is a June snapshot, and the company has announced changes since.