How many employees work at Castellum, Inc.?
Castellum, Inc. (CTM) has approximately 241 total employees worldwide as of March 2026, according to Revelio Labs workforce intelligence data. Castellum, Inc.’s total headcount has declined 1.8% from 246 employees in 2023 to 241 in 2026.
Is Castellum, Inc. hiring right now?
Yes, Castellum, Inc. is actively hiring. Castellum, Inc. had 17 active job postings in 2026, a 61.2% decline from 2025 — see job openings & hiring trends.
About Castellum, Inc.’s Workforce
Castellum, Inc. (CTM) is an Aerospace and Defense company that employs 241 people worldwide as of March 2026. It is the 11th-largest by headcount among its peers. Founded in 2010, the company is headquartered in Vienna, Virginia and trades on the NYSE American.
Castellum, Inc.'s workforce has declined 1.8% from 2023 to 2026, down 1.4% year over year in 2026. It fell to a low of 224 in 2024 Q3 before recovering. Its workforce is concentrated most in North America (94.2%), followed by South Asia (4.6%) and South America (0.6%).
Castellum, Inc.'s functional groups are Engineering (39.3%), Finance and Operations (34.2%), and Sales and Marketing (26.5%), with Finance and Operations growing fastest (up 1.3%). The average salary is $115,857, highest in North America at a median of $116,000, up 1.3% year over year in 2026.
Castellum, Inc.'s active job postings fell 61.2% in 2026 to 17, with new postings per month cooling from 17 in 2023 to 10 in 2026. Overall employee sentiment is positive but declining.
Sourced from Revelio Labs workforce data.
- Ticker
- NYSE American: CTM
- Headquarters
- Vienna, Virginia
- Founded
- 2010
- Industry
- Aerospace and Defense
- Employees
- 241
- YoY
- -1.4% (+3)
As of March 2026
Castellum, Inc. workforce metrics
Unlock hiring rate, attrition rate, and 12 additional workforce metrics for Castellum, Inc.. Compare to peers, export the dataset, and access the full quarterly history.
Unlock MetricsCastellum, Inc. Annual Employee Count (2023-2026)
- Castellum, Inc. had 241 employees in 2026, a 1.4% decline (+3) from 2025.
- Castellum, Inc. had 242 employees in 2025, a 1.0% decline (+17) from 2024.
- Castellum, Inc. had 225 employees in 2024, a 2.8% decline (-10) from 2023.
- Castellum, Inc. had 235 employees in 2023, a 1.3% decline (-22) from 2022.
Castellum, Inc.'s total workforce has grown from 224 employees in 2024 to 241 in 2026. Castellum, Inc.'s headcount peaked at 246 in 2023 before declining in 2024 and recovering through 2025 and 2026.
Castellum, Inc. quarterly employee count
| Year | Qtr | Employees | YoY Change | YoY % |
|---|---|---|---|---|
| 2026 | Q1 | 241 | +3 | -1.4% |
| 2025 | Q4 | 242 | +17 | -1.0% |
| 2025 | Q3 | 241 | +17 | -1.5% |
| 2025 | Q2 | 243 | +12 | -2.4% |
| 2025 | Q1 | 238 | +7 | -2.2% |
| 2024 | Q4 | 225 | -10 | -2.8% |
| 2024 | Q3 | 224 | -14 | -3.2% |
| 2024 | Q2 | 231 | -15 | -2.6% |
| 2024 | Q1 | 231 | -25 | -0.6% |
| 2023 | Q4 | 235 | -22 | -1.3% |
| 2023 | Q3 | 238 | -16 | +0.6% |
| 2023 | Q2 | 246 | -15 | +0.5% |
See Castellum, Inc.'s complete headcount history, including quarterly breakdowns.
Get the DataCastellum, Inc. Employee Count by Region (2026)
North America accounts for the largest share of Castellum, Inc.'s global workforce with approximately 94% of total employees, followed by South Asia and South America.
Castellum, Inc. employees by region
| Region | Employees | % of Total |
|---|---|---|
| North America | 225 | 94.2% |
| South Asia | 11 | 4.6% |
| South America | 1 | 0.6% |
| Pacific Islands | 1 | 0.6% |
Drill into city-level data, hiring trends by region, and historic geographic shifts.
Unlock Geographic DataCastellum, Inc. Employee Count by Department (2026)
Castellum, Inc.'s employee groups are Engineering (39.3%), Finance and Operations (34.2%), and Sales and Marketing (26.5%).
Castellum, Inc. employees by department
| Department | Employees | % of Total |
|---|---|---|
| Engineering | 95 | 39.3% |
| Finance and Operations | 83 | 34.2% |
| Sales and Marketing | 64 | 26.5% |
Compare Castellum, Inc.'s department mix to industry peers.
See Full DataCastellum, Inc. Employee Salary by Region (2026)
Castellum, Inc.'s average employee salary is $115,857 globally. Employees in North America receive the highest compensation.
Castellum, Inc. median employee salary by region (USD)
| Region | Median Salary |
|---|---|
| North America | $116,000 |
Unlock salary by role, level, and city — and compare to Castellum, Inc.'s industry peers.
Unlock Salary DataCastellum, Inc. Job Openings and Hiring Trends (2023-2026)
- Castellum, Inc. had 17 active job postings in 2026, a 61.2% decline (+10) from 2025.
- Castellum, Inc. had 7 active job postings in 2025, a 139.1% decline (-32) from 2024.
- Castellum, Inc. had 39 active job postings in 2024, a 39.2% decline (-19) from 2023.
- Castellum, Inc. had 58 active job postings in 2023, a 25.2% increase from 2022.
- Hiring velocity in 2026: 10 new roles/month, down from 14 in 2025 and 21 in 2024.
Castellum, Inc.'s hiring is slowing: active job postings fell 61.2% in 2026 to 17, with new postings per month cooling from 17 in 2023 to 10 in 2026.
Track new postings per month, role-level demand, and hiring velocity vs. peers.
Unlock Hiring DataCastellum, Inc. Employee Sentiment (2026)
Revelio Labs tracks employee sentiment across Castellum, Inc.'s workforce based on public professional data. Overall sentiment is positive 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 Castellum, Inc.
- How fast is Castellum, Inc. growing?
- In 2026, Castellum, Inc.'s headcount shrank 1.4% to 241 employees, up from 238 in 2025.
- See the full headcount history
- Where are Castellum, Inc. employees located?
- Most Castellum, Inc. employees are based in North America (94.2% of headcount), followed by South Asia and South America.
- Explore where the workforce is based
- What is the average salary at Castellum, Inc.?
- The average employee salary at Castellum, Inc. is approximately $115.9k per year.
- Analyze the salary distribution
- How many new job postings does Castellum, Inc. open per year?
- In Q1 2026, Castellum, Inc. opened 29 new job postings. In 2025, Castellum, Inc. opened 165 new job postings — about 14 per month.
- Track hiring trends by role
- When was Castellum, Inc. founded and where is it headquartered?
- Castellum, Inc. was founded in 2010 and is headquartered in Vienna, Virginia.
- Compare Castellum, Inc. to industry peers
Speak with a workforce expert about Castellum, Inc..
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