How many employees work at SIOM?
SIOM Ltd. has approximately 515 total employees worldwide as of March 2026, according to Revelio Labs workforce intelligence data. SIOM’s total headcount has grown 19.6% from 431 employees in 2023 to 515 in 2026.
Is SIOM hiring right now?
Yes, SIOM is actively hiring. SIOM had 1 active job postings in 2026, a 155.6% decline from 2025 — see job openings & hiring trends.
About SIOM’s Workforce
SIOM Ltd. is an Energy and Resources company that employs 515 people worldwide as of March 2026. It is the 10th-largest by headcount among its peers. Founded in 2010, the company is headquartered in United Kingdom.
SIOM's workforce has grown 19.6% from 2023 to 2026, though it is down 3.8% year over year in 2026. It fell to a low of 421 in 2023 Q3 before recovering. Its workforce is concentrated most in South America (89.4%), followed by East Asia (4.2%) and South Asia (2.8%).
SIOM's functional groups are Finance and Operations (41.9%), Sales and Marketing (36.0%), and Engineering (22.1%), with Sales and Marketing growing fastest (up 11.6%). The average salary is $20,209, ranging from a median of $59,000 in Western Europe to $5,000 in South Asia, down 0.6% year over year in 2026.
SIOM's active job postings fell 155.6% in 2026 to 1. Overall employee sentiment is neutral and broadly stable.
Sourced from Revelio Labs workforce data.
- Headquarters
- United Kingdom
- Founded
- 2010
- Industry
- Energy and Resources
- Employees
- 515
- YoY
- -3.8% (+35)
As of March 2026
SIOM workforce metrics
Unlock hiring rate, attrition rate, and 12 additional workforce metrics for SIOM. Compare to peers, export the dataset, and access the full quarterly history.
Unlock MetricsSIOM Annual Employee Count (2023-2026)
- SIOM had 515 employees in 2026, a 3.8% decline (+35) from 2025.
- SIOM had 509 employees in 2025, a 4.6% decline (+20) from 2024.
- SIOM had 489 employees in 2024, a 4.4% increase (+59) from 2023.
- SIOM had 430 employees in 2023, a 0% no change (+17) from 2022.
SIOM's total workforce has grown from 431 employees in 2023 to 515 in 2026.
SIOM Ltd. quarterly employee count
| Year | Qtr | Employees | YoY Change | YoY % |
|---|---|---|---|---|
| 2026 | Q1 | 515 | +35 | -3.8% |
| 2025 | Q4 | 509 | +20 | -4.6% |
| 2025 | Q3 | 508 | +20 | -5.5% |
| 2025 | Q2 | 498 | +36 | -1.2% |
| 2025 | Q1 | 480 | +24 | +0.1% |
| 2024 | Q4 | 489 | +59 | +4.4% |
| 2024 | Q3 | 488 | +67 | +7.7% |
| 2024 | Q2 | 462 | +31 | +1.8% |
| 2024 | Q1 | 456 | +26 | +0.3% |
| 2023 | Q4 | 430 | +17 | +0.0% |
| 2023 | Q3 | 421 | +14 | +0.0% |
| 2023 | Q2 | 431 | +28 | +2.0% |
See SIOM's complete headcount history, including quarterly breakdowns.
Get the DataSIOM Employee Count by Region (2026)
South America accounts for the largest share of SIOM's global workforce with approximately 89% of total employees, followed by East Asia and South Asia.
SIOM employees by region
| Region | Employees | % of Total |
|---|---|---|
| South America | 459 | 89.4% |
| East Asia | 22 | 4.2% |
| South Asia | 14 | 2.8% |
| Southern Europe | 6 | 1.2% |
| Western Europe | 4 | 0.7% |
| North America | 3 | 0.6% |
| Arab States | 3 | 0.5% |
| Sub-Saharan Africa | 2 | 0.4% |
| Southeast Asia | 1 | 0.3% |
Drill into city-level data, hiring trends by region, and historic geographic shifts.
Unlock Geographic DataSIOM Employee Count by Department (2026)
SIOM's employee groups are Finance and Operations (41.9%), Sales and Marketing (36.0%), and Engineering (22.1%).
SIOM employees by department
| Department | Employees | % of Total |
|---|---|---|
| Finance and Operations | 213 | 41.9% |
| Sales and Marketing | 183 | 36.0% |
| Engineering | 112 | 22.1% |
Compare SIOM's department mix to industry peers.
See Full DataSIOM Employee Salary by Region (2026)
SIOM's average employee salary is $20,209 globally. Employees in Western Europe receive the highest compensation, with median pay approximately 2.9x the global average. Pay is lowest in South Asia, at a median of $5,000.
SIOM median employee salary by region (USD)
| Region | Median Salary |
|---|---|
| Western Europe | $59,000 |
| East Asia | $28,000 |
| Southern Europe | $19,000 |
| South America | $17,000 |
| South Asia | $5,000 |
Unlock salary by role, level, and city — and compare to SIOM's industry peers.
Unlock Salary DataSIOM Job Openings and Hiring Trends (2023-2026)
- SIOM had 1 active job postings in 2026, a 155.6% decline (+1) from 2025.
- SIOM had 0 active job postings in 2025, a 200.0% decline (-5) from 2024.
- SIOM had 5 active job postings in 2024, a 200.0% increase (+5) from 2023.
- SIOM had 0 active job postings in 2023, a 0% no change from 2022.
- Hiring velocity in 2026: 0 new roles/month, down from 2 in 2025 and 3 in 2024.
SIOM's active job postings fell 155.6% in 2026 to 1.
Track new postings per month, role-level demand, and hiring velocity vs. peers.
Unlock Hiring DataSIOM Employee Sentiment (2026)
Revelio Labs tracks employee sentiment across SIOM's workforce based on public professional data. Overall sentiment is neutral and has held steady 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 SIOM
- How fast is SIOM growing?
- In 2026, SIOM's headcount shrank 3.8% to 515 employees, up from 480 in 2025.
- See the full headcount history
- Where are SIOM employees located?
- Most SIOM employees are based in South America (89.4% of headcount), followed by East Asia and South Asia.
- Explore where the workforce is based
- What is the average salary at SIOM?
- The average employee salary at SIOM is approximately $20.2k per year.
- Analyze the salary distribution
- How many new job postings does SIOM open per year?
- In Q1 2026, SIOM opened 1 new job postings. In 2025, SIOM opened 25 new job postings — about 2 per month.
- Track hiring trends by role
- When was SIOM founded and where is it headquartered?
- SIOM was founded in 2010 and is headquartered in United Kingdom.
- Compare SIOM to industry peers
Speak with a workforce expert about SIOM.
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