How many employees work at ESSI?
Engineered Support Systems, Inc. has approximately 202 total employees worldwide as of March 2026, according to Revelio Labs workforce intelligence data. ESSI’s total headcount has declined 10.5% from 226 employees in 2023 to 202 in 2026.
Is ESSI hiring right now?
Yes, ESSI is actively hiring. ESSI had 1 active job postings in 2026, a 163.6% decline from 2025 — see job openings & hiring trends.
About ESSI’s Workforce
Engineered Support Systems, Inc. is an Engineering and Construction Services company that employs 202 people worldwide as of March 2026. It is the 11th-largest by headcount among its peers. Founded in 1995, the company is headquartered in St Louis, Missouri.
ESSI's workforce has declined 10.5% from 2023 to 2026, though it is up 1.5% year over year in 2026. It fell to a low of 202 in 2025 Q2 before recovering. Its workforce is concentrated most in North America (49.2%), followed by South America (33.4%) and Western Europe (6.3%).
ESSI's functional groups are Finance and Operations (40.1%), Engineering (35.8%), and Sales and Marketing (24.1%). The average salary is $64,743, ranging from a median of $114,000 in Western Europe to $14,000 in South America, up 3.7% year over year in 2026.
ESSI's active job postings fell 163.6% in 2026 to 1, with new postings per month cooling from 9 in 2023 to 2 in 2026. Overall employee sentiment is neutral but improving.
Sourced from Revelio Labs workforce data.
- Headquarters
- St Louis, Missouri
- Founded
- 1995
- Industry
- Engineering and Construction Services
- Employees
- 202
- YoY
- +1.5% (-2)
As of March 2026
ESSI workforce metrics
Unlock hiring rate, attrition rate, and 12 additional workforce metrics for ESSI. Compare to peers, export the dataset, and access the full quarterly history.
Unlock MetricsESSI Annual Employee Count (2023-2026)
- ESSI had 202 employees in 2026, a 1.5% increase (-2) from 2025.
- ESSI had 202 employees in 2025, a 0.4% decline (-5) from 2024.
- ESSI had 207 employees in 2024, a 2.8% decline (-9) from 2023.
- ESSI had 216 employees in 2023, a 3.1% decline (-22) from 2022.
ESSI's total workforce has declined from 226 employees in 2023 to 202 in 2026.
Engineered Support Systems, Inc. quarterly employee count
| Year | Qtr | Employees | YoY Change | YoY % |
|---|---|---|---|---|
| 2026 | Q1 | 202 | -2 | +1.5% |
| 2025 | Q4 | 202 | -5 | -0.4% |
| 2025 | Q3 | 203 | -4 | -0.4% |
| 2025 | Q2 | 202 | -12 | -1.1% |
| 2025 | Q1 | 204 | -13 | -3.9% |
| 2024 | Q4 | 207 | -9 | -2.8% |
| 2024 | Q3 | 207 | -12 | -2.7% |
| 2024 | Q2 | 214 | -12 | -1.0% |
| 2024 | Q1 | 217 | -9 | +1.9% |
| 2023 | Q4 | 216 | -22 | -3.1% |
| 2023 | Q3 | 219 | -16 | -2.4% |
| 2023 | Q2 | 226 | -4 | -1.3% |
See ESSI's complete headcount history, including quarterly breakdowns.
Get the DataESSI Employee Count by Region (2026)
North America accounts for the largest share of ESSI's global workforce with approximately 49% of total employees, followed by South America and Western Europe.
ESSI employees by region
| Region | Employees | % of Total |
|---|---|---|
| North America | 99 | 49.2% |
| South America | 67 | 33.4% |
| Western Europe | 13 | 6.3% |
| Sub-Saharan Africa | 8 | 3.7% |
| Southeast Asia | 5 | 2.4% |
| South Asia | 4 | 2.0% |
| Central America and the Caribbean | 3 | 1.6% |
| Southern Europe | 1 | 0.7% |
| Northern Europe | 1 | 0.7% |
Drill into city-level data, hiring trends by region, and historic geographic shifts.
Unlock Geographic DataESSI Employee Count by Department (2026)
ESSI's employee groups are Finance and Operations (40.1%), Engineering (35.8%), and Sales and Marketing (24.1%).
ESSI employees by department
| Department | Employees | % of Total |
|---|---|---|
| Finance and Operations | 81 | 40.1% |
| Engineering | 72 | 35.8% |
| Sales and Marketing | 48 | 24.1% |
Compare ESSI's department mix to industry peers.
See Full DataESSI Employee Salary by Region (2026)
ESSI's average employee salary is $64,743 globally. Employees in Western Europe receive the highest compensation, with median pay approximately 1.8x the global average. Pay is lowest in South America, at a median of $14,000.
ESSI median employee salary by region (USD)
| Region | Median Salary |
|---|---|
| Western Europe | $114,000 |
| North America | $93,000 |
| Southeast Asia | $40,000 |
| South America | $14,000 |
Unlock salary by role, level, and city — and compare to ESSI's industry peers.
Unlock Salary DataESSI Job Openings and Hiring Trends (2023-2026)
- ESSI had 1 active job postings in 2026, a 163.6% decline (+1) from 2025.
- ESSI had 0 active job postings in 2025, a 200.0% decline (-14) from 2024.
- ESSI had 14 active job postings in 2024, a 0% no change from 2023.
- ESSI had 14 active job postings in 2023, a 94.7% increase from 2022.
- Hiring velocity in 2026: 2 new roles/month, down from 4 in 2025 and 11 in 2024.
ESSI's hiring is slowing: active job postings fell 163.6% in 2026 to 1, with new postings per month cooling from 9 in 2023 to 2 in 2026.
Track new postings per month, role-level demand, and hiring velocity vs. peers.
Unlock Hiring DataESSI Employee Sentiment (2026)
Revelio Labs tracks employee sentiment across ESSI's workforce based on public professional data. Overall sentiment is neutral and has improved 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 ESSI
- How fast is ESSI growing?
- In 2026, ESSI's headcount grew 1.5% to 202 employees, down from 204 in 2025.
- See the full headcount history
- Where are ESSI employees located?
- Most ESSI employees are based in North America (49.2% of headcount), followed by South America and Western Europe.
- Explore where the workforce is based
- What is the average salary at ESSI?
- The average employee salary at ESSI is approximately $64.7k per year.
- Analyze the salary distribution
- How many new job postings does ESSI open per year?
- In Q1 2026, ESSI opened 6 new job postings. In 2025, ESSI opened 52 new job postings — about 4 per month.
- Track hiring trends by role
- When was ESSI founded and where is it headquartered?
- ESSI was founded in 1995 and is headquartered in St Louis, Missouri.
- Compare ESSI to industry peers
Speak with a workforce expert about ESSI.
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