Commonwealth Fusion Systems
Broker-dealer platform and services for registered investment advisors
- Sector
- Energy
- Headquarters
- CAMBRIDGE, MA
- Founded
- 2017
- Latest Form D
- $1.8B, Dec 2021
- Total capital
- $2.0B
- Federal grants
- None on recordNo awards found in SBIR/STTR, NIH, NSF or DoD records.
- Private capital raised
- $2.0B
- 3 Form D · last Dec 2021
- 59 months since last filing
- Federal contracts
- None on recordNo federal contract awards found.
- Granted patents
- 15
- 25 pending · first 2021
- Rank in peer group#14 of 108
Capital timeline
Latest events
- Private capital raisedForm D · SEC · 3rd filing$1.8B
- Private capital raisedForm D · SEC · 2nd filing$80.6M
- Private capital raisedForm D · SEC · 1st filing$64.6M
Node area is scaled to amount. Form D reports securities sold, which can differ from an announced round; filings are numbered in the order they were made.
Standing among 108 peers
Line = medianEnergy · Material
- Granted patents#14 · top 13%
Cumulative measures favor older companies. Rankings describe position today, not outcome. Below the median, ranks show as a band rather than a number.
Founders and team
From SEC Form D filings- Alan EustaceDirectorNamed in SEC Form D filings
- Brandon SorbomExecutive Officer, DirectorNamed in SEC Form D filings
- Daniel BrunnerExecutive OfficerNamed in SEC Form D filings
- Katie RaeDirectorNamed in SEC Form D filings
- Massimiliano PieriDirectorNamed in SEC Form D filings
- Mitchell GoldsteinExecutive OfficerNamed in SEC Form D filings
Show all 7 people
- Robert MumgaardExecutive Officer, DirectorNamed in SEC Form D filings
What it has protected
USPTO · 15 granted of 40- GrantedPassive Quench Protection Techniques For Non-insulated Superconducting MagnetsUSPTOUS 12,700,530
- GrantedConductor and Coolant Schemes for Spiral-Grooved, Stacked Plate, Non-Insulated Superconducting MagnetsUSPTOUS 12,695,014
- GrantedCable Joint for Superconducting Cables and Related TechniquesUSPTOUS 12,689,204
Show all 40 patent records
- Passive Quench Protection Techniques For Non-insulated Superconducting MagnetsAug 4, 2026 · US 12,700,530Granted
- Conductor and Coolant Schemes for Spiral-Grooved, Stacked Plate, Non-Insulated Superconducting MagnetsJul 28, 2026 · US 12,695,014Granted
- Cable Joint for Superconducting Cables and Related TechniquesJul 21, 2026 · US 12,689,204Granted
- High-temperature Superconducting Magnets With Quench Damage ResiliencyJul 9, 2026 · Application 19129382Pending
- Partitioned Superconducting CableJun 16, 2026 · US 12,658,342Granted
- Techniques For Forming A Conductive Joint Between Superconducting Cables And Related Systems And MethodsMay 28, 2026 · Application 19307632Pending
- Dense Linear Ramp Bragg Grating Pattern For Quench Detection In High Temperature Superconducting MagnetsMay 28, 2026 · Application 19300801Pending
- Cooling System For Superconducting Wind Power GeneratorMar 17, 2026 · US 12,580,449Granted
- Thermal Radiation Shield For A Superconducting MagnetFeb 19, 2026 · Application 19103596Pending
- Techniques For Distributing Forces In High Field Magnets And Related Systems And MethodsFeb 17, 2026 · US 12,555,711Granted
- Techniques For Removing A Vacuum Vessel From A Tokamak And Related Systems And MethodsDec 2, 2025 · US 12,488,904Granted
- Techniques For Automated Maintenance Of A Tokamak And Related Systems And MethodsOct 28, 2025 · US 12,456,555Granted
- Wind Turbine Generator with High Temperature Superconducting ElementsSep 2, 2025 · US 12,407,238Granted
- Grooved, Stacked-Plate Superconducting Magnets And Electrically Conductive Terminal Blocks and Related Construction TechniquesJul 10, 2025 · Application 19095810Pending
- Handling Of Forces On Tokamak Toroidal Field CoilsJun 5, 2025 · Application 18727535Pending
- Grooved, Stacked-Plate Superconducting Magnets And Electrically Conductive Terminal Blocks and Related Construction TechniquesMay 6, 2025 · US 12,293,871Granted
- Tritium Shunt Heat Exchanger With Sweep GasFeb 27, 2025 · Application 18944319Pending
- Partitioned Cable Joint For Superconducting CablesFeb 6, 2025 · Application 18765682Pending
- Modular High Capacity Current LeadJan 9, 2025 · Application 18701394Pending
- Processes, Systems and Devices for Metal-Filling of Open HTS ChannelsDec 19, 2024 · Application 18704182Pending
- Mitigation Of Attenuating Effects From Ionizing Radiation In Silica Optical Fibers By PhotobleachingOct 10, 2024 · Application 18708165Pending
- Partitioned Cable Joint for Superconducting CablesAug 13, 2024 · US 12,062,879Granted
- Apparatus For Quality Control Of A Superconducting TapeJul 30, 2024 · US 12,050,254Granted
- Field Quality Correction In No-Insulation Superconducting Magnets By Adjustable Current BypassesJan 11, 2024 · Application 17796481Pending
- Grooved, Stacked-Plate Superconducting Magnets And Electrically Conductive Terminal Blocks and Related Construction TechniquesNov 7, 2023 · US 11,810,712Granted
- Magnet Structures Comprising A High Temperature Superconductor (hts) Cable In GrooveSep 7, 2023 · Application 18008279Pending
- Emergency Shutdown of A No-Insulation MagnetMar 30, 2023 · Application 17911270Pending
- Tritium Injection Techniques And Related Systems And MethodsNov 24, 2022 · Application 17751435Pending
- Grooved, Stacked-plate Superconducting Magnets And Electrically Conductive Terminal Blocks And Related Construction TechniquesAug 16, 2022 · US 11,417,464Granted
- Motive Systems Comprising A High Temperature Superconductor (hts) CableDec 30, 2021 · Application 17358261Pending
- Grooved, Stacked-plate Superconducting Magnets And Electrically Conductive Terminal BlocksAug 17, 2021 · US 11,094,439Granted
- High Current Terminal Leads For Non-insulated Superconducting MagnetsApplication 63701107Pending
- Twisted-pair Plasma Current Rogowski CoilApplication 19120588Pending
- Techniques For Mitigating Overcurrents In High Temperature Superconductor Magnets And Related Systems And MethodsApplication 19133916Pending
- Superconducting Cable Comprising Solder ChannelApplication 19122356Pending
- Current Pulse Quench Heating Schemes For No-insulation Superconducting MagnetsApplication 19138840Pending
- RF Electrical Measurement For Superconductor Quench And Temperature Anomaly Detection In MagnetsApplication PCTUS2024058861Pending
- Techniques For Automated Maintenance Of A Tokamak And Related Systems And MethodsApplication PCTUS2024029277Pending
- Techniques For Quench Detection In Superconducting MagnetsApplication PCTUS2024061855Pending
- Power Management Systems For Fusion Energy DevicesApplication PCTUS2025034809Pending
Related companies, and why
- BrightSource Energy IncSimilar federal contract value in Energy · null in contracts
- ASTALAKE BIOSYSTEMS, INC.Similar federal contract value in Energy · null in contracts
- Fisker Inc.Similar federal contract value in Energy · null in contracts
- Belmont Scientific Inc.Similar federal contract value in Energy · null in contracts
- Eavor Technologies Inc.Similar federal contract value in Energy · null in contracts
- MAGMA SPACE, INC.Similar federal contract value in Energy · null in contracts
Press
Hyundai Joins Bill Gates-Backed Fusion Startup Commonwealth Fusion Systems in $1 Billion Funding RoundIbtimes.com.au
Regulatory activity · Energy
- Air Plan Approval; Michigan; Redesignation and Maintenance Plan for the Partial St. Clair 2010 1-Hour Sulfur Dioxide (SO2) NAAQS Nonattainment AreaEnvironmental Protection Agency
- Air Plan Approval; Delaware; 2006 24-Hour Fine Particulate Matter Limited Maintenance Plan for the Philadelphia Nonattainment AreaEnvironmental Protection Agency
- Air Plan Approval; Oklahoma; Updates to the State Implementation Plan for New Source Review Permitting and General SIP ProvisionsEnvironmental Protection Agency
- List of Approved Spent Fuel Storage Casks: NAC International, Inc., MAGNASTOR® Storage System, Certificate of Compliance No. 1031, Amendment Nos. 16 and 17 and Revisions to Amendment Nos. 0 Through 16Nuclear Regulatory Commission
- Epyrifenacil; Pesticide TolerancesEnvironmental Protection Agency
- Fluoxapiprolin; Pesticide TolerancesEnvironmental Protection Agency
Rules are matched to sector, not to company. Recent activity in a sector is context rather than a signal about this business — until rules are matched to what a company actually builds, the section is shown as context and nothing more.
Sources
Federal grants from SBIR/STTR, NIH, NSF and DoD records. Federal contracts from USAspending.gov. Private capital from SEC Form D. Patents from USPTO. Publications from OpenAlex. Regulatory activity from the Federal Register. Press matched on company name.
How to read this page
Figures show associations in public records, not causes or predictions. Nothing here is investment advice. An em-dash means no record was found under this company's name, not that none exists.
Data freshness
SEC Form D filings through . SBIR and STTR awards through .