How Many People Work at Psiquantum? Headcount and Employee Trends

PsiQuantum is a computer hardware firm focused on building large-scale photonic quantum computers. The company employs 321 people and has expanded its workforce by 81 new hires while recording 7 departures, suggesting steady, recruitment-led growth. Its staffing profile shows a strong emphasis on technical roles supported by business and operational functions.

Engineering is the largest group at PsiQuantum with 150 employees, accounting for nearly half of the organisation’s total headcount. Business Management follows with 61 employees, while Finance & Administration and Information Technology support the business with 23 and 21 employees respectively. Smaller but important teams include Marketing & Product (13), Consulting (12), Human Resources (11), Sales & Support (11), Operations (10) and an additional 9 employees classified under Other. The mix highlights a technology-first culture balanced by the corporate, customer and operational capabilities needed to commercialise quantum hardware.

PsiQuantum’s workforce is concentrated in California, with 156 employees in San Francisco and a further 9 in Los Angeles. The company also maintains modest teams in Chicago and Arlington (4 employees each), London (6), Washington DC (3), New York City (3), Phoenix (2) and Seattle (2). An additional 132 employees are distributed across other unspecified locations, indicating a significant remote or flexible presence that complements its primary West Coast base.