How many employees work at Space Telescope Science?
Space Telescope Science Institute has approximately 656 total employees worldwide as of March 2026, according to Revelio Labs workforce intelligence data. Space Telescope Science’s total headcount has grown 5.4% from 622 employees in 2023 to 656 in 2026.
Is Space Telescope Science hiring right now?
Yes, Space Telescope Science is actively hiring. Space Telescope Science had 36 active job postings in 2026, a 17.7% decline from 2025 — see job openings & hiring trends.
About Space Telescope Science’s Workforce
Space Telescope Science Institute is a Research and Development company that employs 656 people worldwide as of March 2026. It is the 11th-largest by headcount among its peers. Founded in 1982, the company is headquartered in Baltimore, Maryland.
Space Telescope Science's workforce has grown 5.4% from 2023 to 2026, though it is down 1.2% year over year in 2026. Its workforce is concentrated most in the United States (98.3%), followed by India (0.6%) and Morocco (0.5%), with India, its fastest-growing location.
Space Telescope Science's largest functional groups are Finance and Operations (46.9%), Engineering (30.9%), and Sales and Marketing (22.3%). Median employee tenure is 6.2 years. The average salary is $113,821, ranging from a median of $107,000 in Northern America to $4,000 in Southern Asia.
Space Telescope Science's active job postings fell 17.7% in 2026 to 36, with new postings per month cooling from 37 in 2023 to 23 in 2026. Overall employee sentiment is positive and broadly stable.
Sourced from Revelio Labs workforce data.
As of March 2026
Space Telescope Science workforce metrics
Unlock hiring rate, attrition rate, and 12 additional workforce metrics for Space Telescope Science. Compare to peers, export the dataset, and access the full quarterly history.
Unlock MetricsSpace Telescope Science Annual Employee Count (2023-2026)
- Space Telescope Science had 656 employees in 2026, a 1.2% decline (+12) from 2025.
- Space Telescope Science had 650 employees in 2025, a 1.4% decline (+1) from 2024.
- Space Telescope Science had 649 employees in 2024, a 0.9% increase (+12) from 2023.
- Space Telescope Science had 637 employees in 2023, a 0.8% increase (+25) from 2022.
Space Telescope Science's total workforce has grown from 622 employees in 2023 to 656 in 2026.
Space Telescope Science Institute quarterly employee count
| Year | Qtr | Employees | YoY Change | YoY % |
|---|---|---|---|---|
| 2026 | Q1 | 656 | +12 | -1.2% |
| 2025 | Q4 | 650 | +1 | -1.4% |
| 2025 | Q3 | 652 | -1 | -1.1% |
| 2025 | Q2 | 669 | +11 | -0.2% |
| 2025 | Q1 | 644 | +5 | +0.5% |
| 2024 | Q4 | 649 | +12 | +0.9% |
| 2024 | Q3 | 653 | +28 | +1.2% |
| 2024 | Q2 | 658 | +36 | +1.1% |
| 2024 | Q1 | 639 | +22 | +0.5% |
| 2023 | Q4 | 637 | +25 | +0.8% |
| 2023 | Q3 | 625 | +28 | +1.7% |
| 2023 | Q2 | 622 | +27 | +3.4% |
See Space Telescope Science's complete headcount history, including quarterly breakdowns.
Get the DataSpace Telescope Science Employee Count by Country and Region (2026)
The United States accounts for the largest share of Space Telescope Science's global workforce with approximately 98% of total employees, followed by India and Morocco.
Space Telescope Science employees by country
| Country | Employees | % of Total | YoY % |
|---|---|---|---|
| United States | 635 | 98.3% | -1.3% |
| India | 4 | 0.6% | +0.0% |
| Morocco | 3 | 0.5% | +0.0% |
| United Kingdom | 2 | 0.3% | +0.0% |
| France | 1 | 0.2% | +0.0% |
| Greece | 1 | 0.2% | +0.0% |
| Brazil | 0 | 0.1% | +0.0% |
Drill into city-level data, hiring trends by region, and historic geographic shifts.
Unlock Geographic DataSpace Telescope Science Employee Count by Department (2026)
- Finance and Operations46.9%
- Engineering30.9%
- Sales and Marketing22.3%
Space Telescope Science's largest employee groups are Finance and Operations (46.9%), Engineering (30.9%), and Sales and Marketing (22.3%).
Space Telescope Science employees by department
| Department | Employees | % of Total | YoY % |
|---|---|---|---|
| Finance and Operations | 306 | 46.9% | -2.2% |
| Engineering | 201 | 30.9% | +0.5% |
| Sales and Marketing | 145 | 22.3% | -2.1% |
Compare Space Telescope Science's department mix to industry peers.
See Full DataSpace Telescope Science Employee Salary by Region (2026)
Space Telescope Science's average employee salary is $113,821 globally. Employees in Northern America receive the highest compensation. Pay is lowest in Southern Asia, at a median of $4,000.
Space Telescope Science median employee salary by region (USD)
| Region | Median Salary |
|---|---|
| Northern America | $107,000 |
| Southern Asia | $4,000 |
Unlock salary by role, level, and city — and compare to Space Telescope Science's industry peers.
Unlock Salary DataSpace Telescope Science Job Openings and Hiring Trends (2023-2026)
- Space Telescope Science had 36 active job postings in 2026, a 17.7% decline (+19) from 2025.
- Space Telescope Science had 17 active job postings in 2025, a 93.8% decline (-30) from 2024.
- Space Telescope Science had 47 active job postings in 2024, a 36.5% decline (-21) from 2023.
- Space Telescope Science had 68 active job postings in 2023, a 1.5% increase from 2022.
- Hiring velocity in 2026: 23 new roles/month, up from 17 in 2025 and 25 in 2024.
Space Telescope Science's hiring is slowing: active job postings fell 17.7% in 2026 to 36, with new postings per month cooling from 37 in 2023 to 23 in 2026.
Track new postings per month, role-level demand, and hiring velocity vs. peers.
Unlock Hiring DataSpace Telescope Science Employee Sentiment (2026)
Revelio Labs tracks employee sentiment across Space Telescope Science's workforce based on public professional data. Overall sentiment is positive and has held steady year over year in 2026.
Overall
Unlock the full sentiment breakdown by department, tenure, and trend over time.
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Frequently Asked Questions About Space Telescope Science
- How fast is Space Telescope Science growing?
- In 2026, Space Telescope Science's headcount shrank 1.2% to 656 employees, up from 644 in 2025.
- Where are Space Telescope Science employees located?
- Most Space Telescope Science employees are based in the United States (98.3% of headcount), followed by India and Morocco.
- What is the average salary at Space Telescope Science?
- The average employee salary at Space Telescope Science is approximately $113.8k per year.
- How many people does Space Telescope Science hire per year?
- In 2026, Space Telescope Science opened roughly 276 new roles — about 23 per month.
- When was Space Telescope Science founded and where is it headquartered?
- Space Telescope Science was founded in 1982 and is headquartered in Baltimore, Maryland.
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