How many employees work at Iron Mountain?
Iron Mountain, Inc. (IRM) has approximately 29,349 total employees worldwide as of March 2026, according to Revelio Labs workforce intelligence data. Iron Mountain’s total headcount has grown 5.2% from 27,911 employees in 2023 to 29,349 in 2026.
Is Iron Mountain hiring right now?
Yes, Iron Mountain is actively hiring. Iron Mountain had 3,439 active job postings in 2026, a 5.1% 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 29,349 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 5.2% from 2023 to 2026, though it is down 1.8% year over year in 2026. Its workforce is concentrated most in North America (27.6%), followed by South Asia (21.0%) and South America (15.5%).
Iron Mountain's functional groups are Finance and Operations (44.6%), Sales and Marketing (27.8%), and Engineering (27.6%). The average salary is $49,791, ranging from a median of $71,000 in North America to $8,000 in South America, down 0.7% year over year in 2026.
Iron Mountain's active job postings rose 5.1% in 2026 to 3,439, with new postings per month climbing from 2,428 in 2023 to 2,488 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
- 29,349
- YoY
- -1.8% (-288)
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 29,349 employees in 2026, a 1.8% decline (-288) from 2025.
- Iron Mountain had 29,361 employees in 2025, a 0.9% decline (+188) from 2024.
- Iron Mountain had 29,173 employees in 2024, a 1.0% increase (+914) from 2023.
- Iron Mountain had 28,259 employees in 2023, a 1.9% increase (+839) from 2022.
Iron Mountain's total workforce has grown from 27,911 employees in 2023 to 29,349 in 2026.
Iron Mountain, Inc. quarterly employee count
| Year | Qtr | Employees | YoY Change | YoY % |
|---|---|---|---|---|
| 2026 | Q1 | 29,349 | -288 | -1.8% |
| 2025 | Q4 | 29,361 | +188 | -0.9% |
| 2025 | Q3 | 29,427 | +654 | -0.1% |
| 2025 | Q2 | 29,523 | +750 | -0.1% |
| 2025 | Q1 | 29,637 | +1,333 | +1.2% |
| 2024 | Q4 | 29,173 | +914 | +1.0% |
| 2024 | Q3 | 28,773 | +531 | +0.8% |
| 2024 | Q2 | 28,773 | +862 | +1.7% |
| 2024 | Q1 | 28,304 | +513 | +1.3% |
| 2023 | Q4 | 28,259 | +839 | +1.9% |
| 2023 | Q3 | 28,242 | +1,046 | +2.1% |
| 2023 | Q2 | 27,911 | +715 | +1.0% |
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 28% of total employees, followed by South Asia and South America.
Iron Mountain employees by region
| Region | Employees | % of Total |
|---|---|---|
| North America | 7,985 | 27.6% |
| South Asia | 6,079 | 21.0% |
| South America | 4,478 | 15.5% |
| Northern Europe | 2,229 | 7.7% |
| Southeast Asia | 1,582 | 5.5% |
| Eastern Europe | 1,137 | 3.9% |
| Western Europe | 912 | 3.2% |
| Arab States | 780 | 2.7% |
| East Asia | 751 | 2.6% |
| Pacific Islands | 707 | 2.4% |
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%), Sales and Marketing (27.8%), and Engineering (27.6%).
Iron Mountain employees by department
| Department | Employees | % of Total |
|---|---|---|
| Finance and Operations | 13,005 | 44.6% |
| Sales and Marketing | 8,097 | 27.8% |
| Engineering | 8,035 | 27.6% |
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 $49,791 globally. Employees in North America receive the highest compensation, with median pay approximately 1.4x the global average. Pay is lowest in South America, at a median of $8,000.
Iron Mountain median employee salary by region (USD)
| Region | Median Salary |
|---|---|
| East Asia | $102,000 |
| North America | $71,000 |
| Western Europe | $61,000 |
| Pacific Islands | $56,000 |
| Northern Europe | $53,000 |
| Arab States | $37,000 |
| Southern Europe | $32,000 |
| Eastern Europe | $25,000 |
| Central America and the Caribbean | $23,000 |
| Central and Western Asia | $21,000 |
| Sub-Saharan Africa | $13,000 |
| Southeast Asia | $11,000 |
| South Asia | $8,000 |
| North Africa | $8,000 |
| South America | $8,000 |
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 3,439 active job postings in 2026, a 5.1% increase (+88) from 2025.
- Iron Mountain had 3,351 active job postings in 2025, a 12.4% increase (+390) from 2024.
- Iron Mountain had 2,961 active job postings in 2024, a 15.1% increase (+417) from 2023.
- Iron Mountain had 2,544 active job postings in 2023, a 7.7% decline from 2022.
- Hiring velocity in 2026: 2,488 new roles/month, down from 3,059 in 2025 and 2,622 in 2024.
Iron Mountain's hiring is accelerating: active job postings rose 5.1% in 2026 to 3,439, with new postings per month climbing from 2,428 in 2023 to 2,488 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 1.8% to 29,349 employees, down from 29,637 in 2025.
- See the full headcount history
- Where are Iron Mountain employees located?
- Most Iron Mountain employees are based in North America (27.6% of headcount), followed by South Asia and South America.
- Explore where the workforce is based
- What is the average salary at Iron Mountain?
- The average employee salary at Iron Mountain is approximately $49.8k per year.
- Analyze the salary distribution
- How many new job postings does Iron Mountain open per year?
- In Q1 2026, Iron Mountain opened 7,464 new job postings. In 2025, Iron Mountain opened 36,704 new job postings — about 3,059 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
Speak with a workforce expert about Iron Mountain.
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