Commonwealth Fusion Systems has 1,106 observed employee profiles in the July 2026 headcount snapshot. This is a profile coverage measure, not a company-reported workforce total. Primary sources identify Commonwealth Fusion Systems's headquarters as Devens, Massachusetts, United States.
The overview and this chart use the same monthly profile series. These observed counts may differ from the company’s total workforce.
Observed professional profile trend
Observed professional profiles increased by 0.6% across the available monthly window, from 1,099 to 1,106 profiles.
Current professional profiles rank classified departments by observed count.
Engineering is the largest observed department at Commonwealth Fusion Systems, with 269 professional profiles.
Team composition
385 profiles (35%) could not be assigned to a department and are excluded from the ranking.
Browse leading profiles for each available department, including current role, seniority, location, and LinkedIn profile.
Commonwealth Fusion Systems has 1,106 observed employee profiles in the July 2026 headcount snapshot. This coverage measure may differ from the company's total workforce.
Commonwealth Fusion Systems's corporate headquarters is in Devens, Massachusetts, United States, based on the linked primary source.
Commonwealth Fusion Systems's observed professional profile count increased by 0.6% from July 2025 to July 2026, using the same monthly series shown above.
Engineering is the largest observed department at Commonwealth Fusion Systems, with 269 professional profiles.
Observed profile trends use the latest available monthly professional profile snapshot. Company-reported workforce totals appear separately and only when supported by a primary company source or regulatory filing. Geography uses location information from individual profiles, aggregated separately from verified company headquarters. Data may lag internal company changes.
The observed profile metric and trend chart use the same latest available monthly snapshot, with its observation month shown separately from the page update date. Company-reported workforce totals appear only when supported by a primary source and remain separate from profile counts. Geographic distributions use a separate current profile population and person location fields, never company headquarters. Country counts describe countries represented in those profiles, not offices. Location percentages include profiles without a known city or region in their denominator. Department, seniority, and title coverage may differ from the company workforce.
