Iron Mountain (company)
| Company type | Public company |
|---|---|
| Industry | Enterprise information management |
| Founded | 1951 |
| Founder | Herman Knaust |
| Headquarters | Boston, Massachusetts , United States |
Area served | Worldwide (58 countries) |
Key people | Bob Brennan (former CEO), Richard Reese (CEO and chairman) |
| Products | Records management, secure information destruction, data backup |
| Website | www |
Iron Mountain Inc. is a U.S.-based company specializing in enterprise information management, established in 1951 and headquartered in Boston, Massachusetts. The firm offers services including records management, secure information destruction, and data backup to a client base exceeding 220,000 across 58 countries spanning North America, Europe, Latin America, Africa, Asia, and Oceania.
As a constituent of the S&P 500 Index and listed on the FTSE4Good ethical investment index, Iron Mountain maintains a significant market footprint while upholding a dedication to sustainable and responsible business conduct.
Founding and early development (1951–1970)
Entrepreneur Herman Knaust, who initially accumulated wealth through mushroom farming, founded Iron Mountain after purchasing an exhausted iron ore mine along with 100 acres in Kingston, New York in 1936. By 1950, responding to shifts in the mushroom industry and Cold War-era security concerns, Knaust transformed the mine—dubbed "Iron Mountain"—into a secure storage facility designed to safeguard corporate documents against nuclear threats and disasters.
In 1951, Iron Mountain Atomic Storage Corporation was officially established, inaugurating its first subterranean vaults and opening a sales office in the Empire State Building. Its initial customer was East River Savings Bank, which stored microfilmed deposit records and signature cards transported via armored vehicles for enhanced security.
Growth phase (1970–2000)
By the early 1970s, the original Iron Mountain entity had declared bankruptcy and was acquired by Vincent J. Ryan through Schooner Capital Corporation based in Boston. At that time, operations included the Livingston, New York site and IMAR, a former limestone mine near Kingston.
In 1978, Iron Mountain introduced its first above-ground records storage facility. Expansion continued with the acquisition of a former Industrial National Bank cold site in Glocester, Rhode Island by 1980. Serving numerous Fortune 500 companies, the firm’s revenue approached $6 million during the early 1980s.
A pivotal moment occurred in the mid-1980s when Manufacturers Hanover Bank transferred all paper records to an above-ground facility located in Port Ewen, New York. This arrangement incorporated barcode technology for real-time document tracking, significantly improving operational efficiency.
Throughout the 1980s, Iron Mountain broadened its presence across New York and New England regions. The acquisition of Bell & Howell Records Management, Inc. in 1988 facilitated entry into twelve additional U.S. markets.
Iron Mountain went public on January 31, 1996. The following year saw enhancement of its software escrow offerings through acquiring Data Securities International (DSI). Its first international purchase occurred in 1998 with British Data Management, Ltd., culminating in reported revenues of $423 million for that fiscal year.
Expansion and integration (2000–present)
Iron Mountain's expansion heavily depended on strategic acquisitions, with revenue rising from $3 million in 1981 to $2.7 billion by 2007.
In February 2000, it finalized a $1.1 billion stock-for-stock merger with Pierce Leahy Corp., substantially increasing market share.
Diversification into digital asset management began with acquiring Connected Corporation in 2004 and LiveVault in 2005 for online backup services. The 2007 acquisition of Stratify Inc., a leading e-discovery provider, led to consolidation of LiveVault and Stratify into Iron Mountain Digital.
Richard Reese held CEO responsibilities starting in 1981 and served as chairman from 1995 until June 2008 when Bob Brennan took over as CEO; Reese continued as chairman. Brennan left his role in April 2011, after which Reese reassumed CEO duties.
In February 2010, Iron Mountain acquired Mimosa Systems to enhance eDiscovery and content archiving within Iron Mountain Digital.
The company divested Iron Mountain Digital to Autonomy Corporation for $380 million in May 2011; Autonomy was subsequently acquired by Hewlett-Packard later that year.
May 2012 saw Iron Mountain augment its high-security storage capacity by acquiring three records storage businesses located in Virginia, South Carolina, and Philadelphia.
In November 2013, the Saint John contact center was closed with positions transitioned to Convergys.
On January 1, 2014, Iron Mountain converted into a real estate investment trust (REIT), optimizing its corporate structure by designating steel racking as qualified real estate assets.
April 2015 marked the announcement of a $2.2 billion acquisition of Australian data protection company Recall Holdings via cash and stock transactions. Regulatory authorities across Australia, Canada, the U.S., and the UK required divestitures within overlapping markets before approving the transaction completed in May 2016.
Fortune ranked Iron Mountain at number 729 among the largest publicly traded U.S. companies in 2016.
In September of that year, more than $200 million worth of unreleased recordings by musician Prince were relocated to an Iron Mountain facility in Los Angeles due to prior inadequate storage conditions.
December 2017 featured Iron Mountain’s purchase of IO Data Centers’ U.S. division for $1.3 billion, adding four colocation data centers situated across New Jersey, Ohio, and Arizona to its global portfolio.
In February 2021, Iron Mountain expanded its operations into the MENAT region by acquiring Infofort, a provider specializing in information management solutions.
Facilities and holdings
Iron Mountain manages more than 1,500 storage sites globally, predominantly consisting of leased above-ground warehouses situated close to its clients. A notable example is its facility in Dighton, Massachusetts, which previously served as a Cold War missile storage location.
The company's premier property is a 1.7 million square-foot, high-security storage complex located within a former limestone quarry in Boyers, Pennsylvania. Acquired in 1998, this climate-regulated and guarded site preserves valuable collections such as Bill Gates' Corbis photographic archive and the U.S. master recordings of Universal Music Group. Nearby, the U.S. Office of Personnel Management rents space to archive government employee retirement files—a practice publicly criticized by Elon Musk in 2025 for inefficiency.
Iron Mountain also protects historically important documents, including the wills of Princess Diana, Charles Dickens, and Charles Darwin. Its music archives encompass original Frank Sinatra recordings and master tapes from Sony Music Entertainment (Rosendale, New York), Universal Music Group (Butler), and Warner Music Group (Southern California). To ensure the security of these materials, certain locations are equipped with professional studios to avoid transporting master recordings offsite.
Furthermore, Iron Mountain once held over 1,800 cans of unclaimed nitrate film now incorporated into the Academy Film Archive’s Iron Mountain Collection.
Recognition
Security Magazine recognized Iron Mountain in its 2008 "Security 500," listing the 500 most secure companies in the United States. Iron Mountain stood out as the sole business services provider included, evaluated based on factors such as revenue allocation to security across sixteen industry sectors.
Between 2006 and 2011, Fortune consistently named Iron Mountain among the "World's Most Admired Companies." In the "diversified outsourcing services" category, it ranked second each year behind Aramark, except for 2006 when it also placed below Convergys. These rankings were derived from assessments by executives, directors, and analysts considering attributes like investment appeal and management effectiveness.
In April 2009, Iron Mountain's Digital Record Center for Images received "Product of the Year" honors from the Massachusetts Network Communications Council in the categories of Cloud Computing, Virtualization, and Data Warehousing/Storage.
Data losses
Iron Mountain has encountered public scrutiny over incidents involving lost or misplaced customer data, including sensitive information such as home addresses and Social Security numbers.
- In 1997, a fire consumed a New Jersey warehouse containing corporate records just two days after another blaze affected a nearby Iron Mountain facility.
- In May 2005, Time Warner announced that 40 unencrypted backup tapes with personal information on 600,000 employees went missing during transit in an Iron Mountain vehicle. This incident led Time Warner to implement tape encryption and prompted Iron Mountain to recommend similar measures to clients.
- In April 2006, tapes carrying personal data for approximately 17,000 Long Island Rail Road workers and records from the U.S. Department of Veterans Affairs were lost while being transported.
- A fire in July 2006 destroyed a leased six-story warehouse in London storing paper records for 600 clients—including major law firms—and medical files for up to 240,000 patients at Chelsea and Westminster Hospital. The London Fire Brigade later determined this fire was arson.
- Also in July 2006, an Ottawa warehouse was damaged by a fire caused by a contractor.
- To enhance security during transport, Iron Mountain upgraded its vehicle fleet in August 2007 with chain-of-custody technology incorporating radio frequency authentication and real-time tracking.
- On November 4, 2011, a significant fire damaged Iron Mountain's document storage facility and headquarters in Aprilia, Italy; no injuries were reported.
- On February 5, 2014, an arson attack completely destroyed the Buenos Aires warehouse; this tragedy resulted in nine firefighter fatalities and seven severe injuries.
- In August 2024, Iron Mountain disclosed that approximately one-fifth of hard drives stored offline since the 1990s were irretrievable.
While these events have affected Iron Mountain’s operational risk profile, they have also driven investments aimed at strengthening security protocols to safeguard client data assets.
External links
- Business services firms in the United States
- Storage service providers
- Business services firms founded in 1951
- Computer storage providers
- Cloud data storage
- Companies headquartered in Boston
- American enterprises founded in 1951
- 1951 establishments in New York State
- Entities listed on the New York Stock Exchange
- 1996 public offerings
- Real estate investment trusts in the United States
- Companies of the United States by year of establishment
- American companies established in 1951