Castle Biosciences, Inc. (CSTL)

Castle Biosciences Employees

Castle Biosciences had 823 employees as of September 30, 2025. The number of employees increased by 113 or 15.92% compared to the same quarter last year.

• Employees: 823
• Change: 113
• Growth: 15.92%
• Revenue / Employee: $417,412
• Profits / Employee: -$14,868
• Market Cap: 955.93M

Employees History

Date	Employees	Change (1Y)	Growth (1Y)	Full-Time	Part-Time
Sep 30, 2025	823	113	15.92%	823	0
Jun 30, 2025	798	95	13.51%	798	0
Mar 31, 2025	784	146	22.88%	784	0
Dec 31, 2024	761	151	24.75%	761	0
Sep 30, 2024	710	123	20.95%	710	0
Jun 30, 2024	703	121	20.79%	703	0
Mar 31, 2024	638	95	17.50%	638	0
Dec 31, 2023	610	67	12.34%	610	0
Sep 30, 2023	587	70	13.54%	587	0
Jun 30, 2023	582	100	20.75%	582	0
Dec 31, 2022	543	198	57.39%	542	1
Sep 30, 2022	517	206	66.24%	517	0
Jun 30, 2022	482	190	65.07%	482	0
Dec 31, 2021	345	144	71.64%	342	3
Sep 30, 2021	311	110	54.73%	311	0
Jun 30, 2021	292	-	-	292	0