Iron Mountain Incorporated logo
IRMIron Mountain Incorporated

The market capitalization for Iron Mountain Incorporated (IRM) is $39.40 Billion, making it a Large Cap company. Market cap is calculated by multiplying the current stock price by the total number of shares outstanding.

Market Capitalization

$39.40B

$39.40 Billion

Calculation

Stock Price
$132.44
Shares Outstanding
297.52M
Market Cap
$39.40B

Market Cap = Price × Shares Outstanding

Size Classification

Large Cap

$10B - $1T

Companies with market capitalization between $10 billion and $1 trillion.

Market Cap Size Scale

Micro Cap

<$250M

Small Cap

$250M-$2B

Mid Cap

$2B-$10B

Large Cap

$10B-$1T

Mega Cap

>$1T

IRM Market Cap: $39.40 Billion

Related Valuation Metrics

Key Statistics

Market Cap$39.40 Billion
Stock Price$132.44
Shares Outstanding297.52M
Size CategoryLarge Cap
P/E Ratio145.54
P/B RatioN/A
Data as of Saturday, June 27, 2026

About Iron Mountain Incorporated

Established in 1951, Iron Mountain Incorporated (NYSE: IRM) has become the world's foremost authority in storage and information management solutions. More than 225,000 organizations globally trust Iron Mountain with their critical assets. With an extensive physical infrastructure spanning over 90 million square feet, the company operates approximately 1,450 facilities in around 50 countries. Within this vast network, Iron Mountain safeguards billions of valued items, including vital corporate records, highly confidential digital assets, and invaluable cultural and historical artifacts. Their comprehensive suite of offerings encompasses secure document archiving, robust information governance, digital transformation initiatives, confidential destruction services, along with advanced data centers, cloud computing solutions, and specialized art storage and logistics. These services empower clients to mitigate costs and risks, ensure regulatory compliance, facilitate swift disaster recovery, and enable a more efficient, digital-first operational model.

Portsmouth, NH
28,850 employees
Real Estate / REIT - Specialty
Sector
Real Estate
Industry
REIT - Specialty
CEO
William L. Meaney