How many employees work at IEO?
Instituto Español De Oceanografia has approximately 579 total employees worldwide as of March 2026, according to Revelio Labs workforce intelligence data. IEO’s total headcount has grown 25.0% from 463 employees in 2023 to 579 in 2026.
About IEO’s Workforce
Instituto Español De Oceanografia is a Research and Development company that employs 579 people worldwide as of March 2026. It is the 11th-largest by headcount among its peers. Founded in 1914, the company is headquartered in Madrid, Spain.
IEO's workforce has grown 25.0% from 2023 to 2026, up 4.5% year over year in 2026. It fell to a low of 450 in 2023 Q3 before recovering. Its workforce is concentrated most in Southern Europe (95.3%), followed by South America (2.7%) and South Asia (0.7%).
IEO's functional groups are Finance and Operations (63.1%), Engineering (20.8%), and Sales and Marketing (16.1%), with Sales and Marketing growing fastest (up 11.2%). The average salary is $35,001, ranging from a median of $32,000 in Southern Europe to $7,000 in South Asia, down 0.9% year over year in 2026.
Sourced from Revelio Labs workforce data.
- Headquarters
- Madrid, Spain
- Founded
- 1914
- Industry
- Research and Development
- Employees
- 579
- YoY
- +4.5% (+68)
As of March 2026
IEO workforce metrics
Unlock hiring rate, attrition rate, and 12 additional workforce metrics for IEO. Compare to peers, export the dataset, and access the full quarterly history.
Unlock MetricsIEO Annual Employee Count (2023-2026)
- IEO had 579 employees in 2026, a 4.5% increase (+68) from 2025.
- IEO had 569 employees in 2025, a 6.4% increase (+81) from 2024.
- IEO had 488 employees in 2024, a 0.3% decline (+22) from 2023.
- IEO had 466 employees in 2023, a 3.0% increase (+21) from 2022.
IEO's total workforce has grown from 463 employees in 2023 to 579 in 2026.
Instituto Español De Oceanografia quarterly employee count
| Year | Qtr | Employees | YoY Change | YoY % |
|---|---|---|---|---|
| 2026 | Q1 | 579 | +68 | +4.5% |
| 2025 | Q4 | 569 | +81 | +6.4% |
| 2025 | Q3 | 578 | +76 | +5.0% |
| 2025 | Q2 | 547 | +50 | +3.7% |
| 2025 | Q1 | 511 | +21 | +0.9% |
| 2024 | Q4 | 488 | +22 | -0.3% |
| 2024 | Q3 | 502 | +52 | +6.0% |
| 2024 | Q2 | 497 | +34 | +2.0% |
| 2024 | Q1 | 490 | +33 | +2.8% |
| 2023 | Q4 | 466 | +21 | +3.0% |
| 2023 | Q3 | 450 | +22 | +5.3% |
| 2023 | Q2 | 463 | +52 | +8.7% |
See IEO's complete headcount history, including quarterly breakdowns.
Get the DataIEO Employee Count by Region (2026)
Southern Europe accounts for the largest share of IEO's global workforce with approximately 95% of total employees, followed by South America and South Asia.
IEO employees by region
| Region | Employees | % of Total |
|---|---|---|
| Southern Europe | 550 | 95.3% |
| South America | 16 | 2.7% |
| South Asia | 4 | 0.7% |
| Southeast Asia | 3 | 0.5% |
| Western Europe | 2 | 0.3% |
| Eastern Europe | 1 | 0.2% |
| Central America and the Caribbean | 1 | 0.2% |
| Northern Europe | 1 | 0.1% |
| Central and Western Asia | 0 | 0.0% |
Drill into city-level data, hiring trends by region, and historic geographic shifts.
Unlock Geographic DataIEO Employee Count by Department (2026)
IEO's employee groups are Finance and Operations (63.1%), Engineering (20.8%), and Sales and Marketing (16.1%).
IEO employees by department
| Department | Employees | % of Total |
|---|---|---|
| Finance and Operations | 360 | 63.1% |
| Engineering | 119 | 20.8% |
| Sales and Marketing | 92 | 16.1% |
Compare IEO's department mix to industry peers.
See Full DataIEO Employee Salary by Region (2026)
IEO's average employee salary is $35,001 globally. Employees in Southern Europe receive the highest compensation. Pay is lowest in South Asia, at a median of $7,000.
IEO median employee salary by region (USD)
| Region | Median Salary |
|---|---|
| Southern Europe | $32,000 |
| South America | $13,000 |
| South Asia | $7,000 |
Unlock salary by role, level, and city — and compare to IEO's industry peers.
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Frequently Asked Questions About IEO
- How fast is IEO growing?
- In 2026, IEO's headcount grew 4.5% to 579 employees, up from 511 in 2025.
- See the full headcount history
- Where are IEO employees located?
- Most IEO employees are based in Southern Europe (95.3% of headcount), followed by South America and South Asia.
- Explore where the workforce is based
- What is the average salary at IEO?
- The average employee salary at IEO is approximately $35k per year.
- Analyze the salary distribution
- When was IEO founded and where is it headquartered?
- IEO was founded in 1914 and is headquartered in Madrid, Spain.
- Compare IEO to industry peers
Speak with a workforce expert about IEO.
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