Iron mountain headquarters details
85 New Hampshire Ave
Portsmouth
New Hampshire
03801
United States
1951
Location map
Open in Google MapsAll Iron mountain office locations
| City | State / region | Country | Type |
|---|---|---|---|
| Portsmouth HQ | New Hampshire | United States | Headquarters |
About Iron mountain
Iron mountain (New York Stock Exchange (NYSE): IRM) is headquartered in Portsmouth, New Hampshire, United States. Founded in 1951, the company operates across 1 countries with approximately 29,400 employees worldwide.
Where is Iron mountain's main office?
Iron mountain's main headquarters office is located at 85 New Hampshire Ave, Portsmouth, New Hampshire 03801. This serves as the company's primary corporate address and is home to its executive leadership team.
Iron mountain regional offices
Beyond its headquarters in Portsmouth, Iron mountain maintains 1 offices across 1 countries. Regional offices span 1 countries.
Iron mountain contact information
The main switchboard for Iron mountain headquarters can be reached at 617-535-4766. For investor relations, visit ironmountain.com/investor-relations.
What does Iron mountain do?
Iron Mountain Incorporated is a global leader in information management services, and is trusted by more than 240,000 customers in 61 countries, including approximately 95% of the Fortune 1000, to help unlock value and intelligence from their assets through services that transcend the physical and digital worlds. Their broad range of solutions address their information management, digital transformation, information security, data center and asset lifecycle management (ALM) needs. Their longstanding commitment to safety, security, sustainability and innovation in support of our customers underpins everything we do. We currently serve customers across an array of market verticals commercial, legal, financial, healthcare, technology, life sciences, energy, business services, entertainment and government organizations. They are listed on the New York Stock Exchange (the NYSE) and are a constituent of the Standard & Poor's 500 Index, the Morgan Stanley Capital International (MSCI) REIT index and the FTSE EPRA Nareit Global Real Estate Index. As of December 31, 2025, we were number 567 on the Fortune 1000. We have been organized and have operated as a REIT beginning with our taxable year ended December 31, 2014. The firm was founded and incorporated in 1951 in Delaware, USA.
Frequently asked questions
Where is Iron mountain headquarters?
Iron mountain's headquarters is located at 85 New Hampshire Ave, Portsmouth, New Hampshire 03801, United States.
How many offices does Iron mountain have?
Iron mountain operates 1 offices across 1 countries as of 2026.
What is Iron mountain's corporate address?
The official corporate address is 85 New Hampshire Ave, Portsmouth, New Hampshire 03801.
When was Iron mountain founded?
Iron mountain was founded in 1951 and has grown to employ approximately 29,400 people worldwide.
What is Iron mountain's phone number?
The main phone number for Iron mountain headquarters is 617-535-4766.