Castle Biosciences, Inc. (CSTL)

Castle Biosciences Employees

Castle Biosciences had 942 employees as of March 31, 2026. The number of employees increased by 59 or 6.68% since the number was last reported on December 31, 2025.

• Employees: 942
• Change: 59
• Growth: 6.68%
• Revenue / Employee: $360,849
• Profits / Employee: -$13,622
• Market Cap: 744.90M

Employees Chart

Chart

Chart

Employees History

Date	Employees	Change (1Y)	Growth (1Y)	Full-Time	Part-Time
Mar 31, 2026	942	59	6.68%	942	0
Dec 31, 2025	883	122	16.03%	883	0
Dec 31, 2024	761	151	24.75%	761	0
Dec 31, 2023	610	67	12.34%	610	0
Dec 31, 2022	543	198	57.39%	542	1

Data Source: S&P Global Market Intelligence Last updated: Mar 31, 2026

Employee data is provided by S&P Global Market Intelligence and updates once per year after the filing of each annual report.

Update frequency:

Yearly

Last checked:

Jul 9, 2026

Data Sources Report a data error