How many employees work at Iron Mountain?
Iron Mountain, Inc. (IRM) has approximately 29,596 total employees worldwide as of March 2026, according to Revelio Labs workforce intelligence data. Iron Mountain’s total headcount has grown 2.4% from 28,903 employees in 2023 to 29,596 in 2026.
Is Iron Mountain hiring right now?
Yes, Iron Mountain is actively hiring. Iron Mountain had 3,428 active job postings in 2026, a 4.7% increase from 2025 — see job openings & hiring trends.
About Iron Mountain’s Workforce
Iron Mountain, Inc. (IRM) is an Information Technology Services company that employs 29,596 people worldwide as of March 2026. It is the 4th-largest by headcount among its peers. Founded in 1951, the company is headquartered in Portsmouth, New Hampshire and trades on the New York Stock Exchange.
Iron Mountain's workforce has grown 2.4% from 2023 to 2026, though it is down 1.4% year over year in 2026. Its workforce is concentrated most in North America (29.4%), followed by South Asia (16.3%) and Southeast Asia (13.4%).
Iron Mountain's functional groups are Finance and Operations (44.6%), Engineering (28.3%), and Sales and Marketing (27.2%). The average salary is $48,465, ranging from a median of $70,000 in North America to $6,000 in Southeast Asia, down 0.9% year over year in 2026.
Iron Mountain's active job postings rose 4.7% in 2026 to 3,428, with new postings per month climbing from 2,426 in 2023 to 2,479 in 2026. Overall employee sentiment is negative and declining.
Sourced from Revelio Labs workforce data.
- Ticker
- New York Stock Exchange: IRM
- Headquarters
- Portsmouth, New Hampshire
- Founded
- 1951
- Industry
- Information Technology Services
- Employees
- 29,596
- YoY
- -1.4% (-241)
As of March 2026
Iron Mountain workforce metrics
Unlock hiring rate, attrition rate, and 12 additional workforce metrics for Iron Mountain. Compare to peers, export the dataset, and access the full quarterly history.
Unlock MetricsIron Mountain Annual Employee Count (2023-2026)
- Iron Mountain had 29,596 employees in 2026, a 1.4% decline (-241) from 2025.
- Iron Mountain had 29,516 employees in 2025, a 1.2% decline (-67) from 2024.
- Iron Mountain had 29,583 employees in 2024, a 0.2% increase (+480) from 2023.
- Iron Mountain had 29,103 employees in 2023, a 1.1% increase (+535) from 2022.
Iron Mountain's total workforce has grown from 28,903 employees in 2023 to 29,596 in 2026.
Iron Mountain, Inc. quarterly employee count
| Year | Qtr | Employees | YoY Change | YoY % |
|---|---|---|---|---|
| 2026 | Q1 | 29,596 | -241 | -1.4% |
| 2025 | Q4 | 29,516 | -67 | -1.2% |
| 2025 | Q3 | 29,648 | +269 | -0.7% |
| 2025 | Q2 | 29,737 | +318 | -0.7% |
| 2025 | Q1 | 29,837 | +711 | +0.3% |
| 2024 | Q4 | 29,583 | +480 | +0.2% |
| 2024 | Q3 | 29,379 | +269 | +0.2% |
| 2024 | Q2 | 29,419 | +516 | +0.9% |
| 2024 | Q1 | 29,126 | +276 | +0.6% |
| 2023 | Q4 | 29,103 | +535 | +1.1% |
| 2023 | Q3 | 29,110 | +715 | +1.2% |
| 2023 | Q2 | 28,903 | +467 | +0.5% |
See Iron Mountain's complete headcount history, including quarterly breakdowns.
Get the DataIron Mountain Employee Count by Region (2026)
North America accounts for the largest share of Iron Mountain's global workforce with approximately 29% of total employees, followed by South Asia and Southeast Asia.
Iron Mountain employees by region
| Region | Employees | % of Total |
|---|---|---|
| North America | 8,581 | 29.4% |
| South Asia | 4,741 | 16.3% |
| Southeast Asia | 3,914 | 13.4% |
| South America | 3,714 | 12.7% |
| Northern Europe | 2,044 | 7.0% |
| Eastern Europe | 944 | 3.2% |
| North Africa | 927 | 3.2% |
| Western Europe | 842 | 2.9% |
| Arab States | 711 | 2.4% |
| Pacific Islands | 681 | 2.3% |
Drill into city-level data, hiring trends by region, and historic geographic shifts.
Unlock Geographic DataIron Mountain Employee Count by Department (2026)
Iron Mountain's employee groups are Finance and Operations (44.6%), Engineering (28.3%), and Sales and Marketing (27.2%).
Iron Mountain employees by department
| Department | Employees | % of Total |
|---|---|---|
| Finance and Operations | 12,764 | 44.6% |
| Engineering | 8,094 | 28.3% |
| Sales and Marketing | 7,792 | 27.2% |
Compare Iron Mountain's department mix to industry peers.
See Full DataIron Mountain Employee Salary by Region (2026)
Iron Mountain's average employee salary is $48,465 globally. Employees in North America receive the highest compensation, with median pay approximately 1.4x the global average. Pay is lowest in Southeast Asia, at a median of $6,000.
Iron Mountain median employee salary by region (USD)
| Region | Median Salary |
|---|---|
| East Asia | $92,000 |
| North America | $70,000 |
| Western Europe | $61,000 |
| Pacific Islands | $55,000 |
| Northern Europe | $54,000 |
| Arab States | $39,000 |
| Southern Europe | $34,000 |
| Eastern Europe | $27,000 |
| Central America and the Caribbean | $23,000 |
| Central and Western Asia | $22,000 |
| Sub-Saharan Africa | $12,000 |
| South America | $8,000 |
| South Asia | $8,000 |
| North Africa | $8,000 |
| Southeast Asia | $6,000 |
Unlock salary by role, level, and city — and compare to Iron Mountain's industry peers.
Unlock Salary DataIron Mountain Job Openings and Hiring Trends (2023-2026)
- Iron Mountain had 3,428 active job postings in 2026, a 4.7% increase (+75) from 2025.
- Iron Mountain had 3,353 active job postings in 2025, a 11.9% increase (+376) from 2024.
- Iron Mountain had 2,977 active job postings in 2024, a 15.8% increase (+435) from 2023.
- Iron Mountain had 2,542 active job postings in 2023, a 7.9% decline from 2022.
- Hiring velocity in 2026: 2,479 new roles/month, down from 3,060 in 2025 and 2,624 in 2024.
Iron Mountain's hiring is accelerating: active job postings rose 4.7% in 2026 to 3,428, with new postings per month climbing from 2,426 in 2023 to 2,479 in 2026.
Track new postings per month, role-level demand, and hiring velocity vs. peers.
Unlock Hiring DataIron Mountain Employee Sentiment (2026)
Revelio Labs tracks employee sentiment across Iron Mountain's workforce based on public professional data. Overall sentiment is negative and has declined year over year in 2026.
Overall
Unlock the full sentiment breakdown by department, tenure, and trend over time.
Unlock SentimentSimilar Companies
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Frequently Asked Questions About Iron Mountain
- How fast is Iron Mountain growing?
- In 2026, Iron Mountain's headcount shrank 1.4% to 29,596 employees, down from 29,837 in 2025.
- See the full headcount history
- Where are Iron Mountain employees located?
- Most Iron Mountain employees are based in North America (29.4% of headcount), followed by South Asia and Southeast Asia.
- Explore where the workforce is based
- What is the average salary at Iron Mountain?
- The average employee salary at Iron Mountain is approximately $48.5k per year.
- Analyze the salary distribution
- How many new job postings does Iron Mountain open per year?
- In Q1 2026, Iron Mountain opened 7,437 new job postings. In 2025, Iron Mountain opened 36,715 new job postings — about 3,060 per month.
- Track hiring trends by role
- When was Iron Mountain founded and where is it headquartered?
- Iron Mountain was founded in 1951 and is headquartered in Portsmouth, New Hampshire.
- Compare Iron Mountain to industry peers
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