How many employees work at OST?
OST, Inc. (Virginia) has approximately 331 total employees worldwide as of March 2026, according to Revelio Labs workforce intelligence data. OST’s total headcount has declined 3.8% from 344 employees in 2023 to 331 in 2026.
Is OST hiring right now?
Yes, OST is actively hiring. OST had 26 active job postings in 2026, a 23.7% decline from 2025 — see job openings & hiring trends.
About OST’s Workforce
OST, Inc. (Virginia) is an Information Technology Services company that employs 331 people worldwide as of March 2026. It is the 9th-largest by headcount among its peers. Founded in 1999, the company is headquartered in McLean, Virginia.
OST's workforce has declined 3.8% from 2023 to 2026, down 6.1% year over year in 2026. It fell to a low of 330 in 2025 Q2 before recovering. Its workforce is concentrated most in North America (92.4%), followed by East Asia (5.0%) and Western Europe (0.8%).
OST's functional groups are Finance and Operations (36.4%), Sales and Marketing (35.4%), and Engineering (28.2%), with Finance and Operations growing fastest (up 3.4%). The average salary is $107,859, ranging from a median of $111,000 in North America to $20,000 in East Asia, up 1.0% year over year in 2026.
OST's active job postings fell 23.7% in 2026 to 26, with new postings per month cooling from 53 in 2023 to 39 in 2026. Overall employee sentiment is neutral but improving.
Sourced from Revelio Labs workforce data.
- Headquarters
- McLean, Virginia
- Founded
- 1999
- Industry
- Information Technology Services
- Employees
- 331
- YoY
- -6.1% (-10)
As of March 2026
OST workforce metrics
Unlock hiring rate, attrition rate, and 12 additional workforce metrics for OST. Compare to peers, export the dataset, and access the full quarterly history.
Unlock MetricsOST Annual Employee Count (2023-2026)
- OST had 331 employees in 2026, a 6.1% decline (-10) from 2025.
- OST had 335 employees in 2025, a 4.9% decline (-4) from 2024.
- OST had 339 employees in 2024, a 2.1% increase (-6) from 2023.
- OST had 345 employees in 2023, a 3.2% increase (+13) from 2022.
OST's total workforce has grown from 330 employees in 2025 to 331 in 2026. OST's headcount peaked at 354 in 2023 before declining in 2025 and recovering through 2026.
OST, Inc. (Virginia) quarterly employee count
| Year | Qtr | Employees | YoY Change | YoY % |
|---|---|---|---|---|
| 2026 | Q1 | 331 | -10 | -6.1% |
| 2025 | Q4 | 335 | -4 | -4.9% |
| 2025 | Q3 | 333 | -12 | -5.7% |
| 2025 | Q2 | 330 | -11 | -3.1% |
| 2025 | Q1 | 341 | +0 | +2.1% |
| 2024 | Q4 | 339 | -6 | +2.1% |
| 2024 | Q3 | 345 | -9 | +2.6% |
| 2024 | Q2 | 341 | -3 | +1.9% |
| 2024 | Q1 | 341 | +2 | -0.0% |
| 2023 | Q4 | 345 | +13 | +3.2% |
| 2023 | Q3 | 354 | +13 | +3.9% |
| 2023 | Q2 | 344 | +7 | +4.6% |
See OST's complete headcount history, including quarterly breakdowns.
Get the DataOST Employee Count by Region (2026)
North America accounts for the largest share of OST's global workforce with approximately 92% of total employees, followed by East Asia and Western Europe.
OST employees by region
| Region | Employees | % of Total |
|---|---|---|
| North America | 301 | 92.4% |
| East Asia | 16 | 5.0% |
| Western Europe | 3 | 0.8% |
| Southern Europe | 2 | 0.6% |
| Central and Western Asia | 2 | 0.6% |
| South America | 1 | 0.3% |
| Northern Europe | 1 | 0.3% |
Drill into city-level data, hiring trends by region, and historic geographic shifts.
Unlock Geographic DataOST Employee Count by Department (2026)
OST's employee groups are Finance and Operations (36.4%), Sales and Marketing (35.4%), and Engineering (28.2%).
OST employees by department
| Department | Employees | % of Total |
|---|---|---|
| Finance and Operations | 120 | 36.4% |
| Sales and Marketing | 117 | 35.4% |
| Engineering | 93 | 28.2% |
Compare OST's department mix to industry peers.
See Full DataOST Employee Salary by Region (2026)
OST's average employee salary is $107,859 globally. Employees in North America receive the highest compensation. Pay is lowest in East Asia, at a median of $20,000.
OST median employee salary by region (USD)
| Region | Median Salary |
|---|---|
| North America | $111,000 |
| East Asia | $20,000 |
Unlock salary by role, level, and city — and compare to OST's industry peers.
Unlock Salary DataOST Job Openings and Hiring Trends (2023-2026)
- OST had 26 active job postings in 2026, a 23.7% decline (+13) from 2025.
- OST had 13 active job postings in 2025, a 66.7% decline (-13) from 2024.
- OST had 26 active job postings in 2024, a 14.3% decline (-4) from 2023.
- OST had 30 active job postings in 2023, a 87.9% decline from 2022.
- Hiring velocity in 2026: 39 new roles/month, up from 30 in 2025 and 38 in 2024.
OST's hiring is slowing: active job postings fell 23.7% in 2026 to 26, with new postings per month cooling from 53 in 2023 to 39 in 2026.
Track new postings per month, role-level demand, and hiring velocity vs. peers.
Unlock Hiring DataOST Employee Sentiment (2026)
Revelio Labs tracks employee sentiment across OST'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 OST
- How fast is OST growing?
- In 2026, OST's headcount shrank 6.1% to 331 employees, down from 341 in 2025.
- See the full headcount history
- Where are OST employees located?
- Most OST employees are based in North America (92.4% of headcount), followed by East Asia and Western Europe.
- Explore where the workforce is based
- What is the average salary at OST?
- The average employee salary at OST is approximately $107.9k per year.
- Analyze the salary distribution
- How many new job postings does OST open per year?
- In Q1 2026, OST opened 117 new job postings. In 2025, OST opened 356 new job postings — about 30 per month.
- Track hiring trends by role
- When was OST founded and where is it headquartered?
- OST was founded in 1999 and is headquartered in McLean, Virginia.
- Compare OST to industry peers
Speak with a workforce expert about OST.
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