Quantum Circuits
Dual-rail qubits with built-in error detection for fault-tolerant quantum computing
- Sector
- Quantum
- Headquarters
- NEW HAVEN, CT
- Founded
- 2015
- Latest Form D
- $26.6M, May 2024
- Total capital
- $26.6M
- Federal grants
- None on recordNo awards found in SBIR/STTR, NIH, NSF or DoD records.
- Private capital raised
- $26.6M
- 3 Form D · last May 2024
- 30 months since last filing
- Federal contracts
- None on recordNo federal contract awards found.
- Granted patents
- 1
- 5 pending · first 2025
- Rank in peer group#7 of 17
Capital timeline
Latest events
- Private capital raisedForm D · SEC · 1st filing$26.6M
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.
2 records have no date or no amount, so they aren’t placed on the timeline.
Standing among 17 peers
Line = medianQuantum · Device
- Granted patents#7 · top 41%
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- Brendan DickinsonDirectorNamed in SEC Form D filings
- Brian W PuschExecutive Officer, DirectorNamed in SEC Form D filings
- Corey RitterDirectorNamed in SEC Form D filings
- Martin MengwallExecutive OfficerNamed in SEC Form D filings
- Ray SmetsExecutive Officer, DirectorNamed in SEC Form D filings
- Robert SchoelkopfDirectorNamed in SEC Form D filings
Show all 8 people
- Stephen KnightDirectorNamed in SEC Form D filings
- William CoughranDirectorNamed in SEC Form D filings
What it has protected
USPTO · 1 granted of 6- GrantedInterface between Cryogenic Computational Hardware and Room Temperature Computational HardwareUSPTOUS 12,417,398
- PendingResistive Flex Attenuator for a Qubit EnvironmentUSPTOApplication 17966340
- PendingResistive Flex Attenuator For A Qubit EnvironmentUSPTOApplication PCTUS2022046723
Show all 6 patent records
- Interface between Cryogenic Computational Hardware and Room Temperature Computational HardwareSep 16, 2025 · US 12,417,398Granted
- Resistive Flex Attenuator for a Qubit EnvironmentAug 17, 2023 · Application 17966340Pending
- Resistive Flex Attenuator For A Qubit EnvironmentApplication PCTUS2022046723Pending
- Interface Between Cryogenic Computational Hardware And Room Temperature Computational HardwareApplication PCTUS2022046744Pending
- Interface between Cryogenic Computational Hardware and Room Temperature Computational HardwareApplication 63255917Pending
- Resistive Flex Attenuator for a Qubit EnvironmentApplication 63255923Pending
Related companies, and why
- BROOKHAVEN TECHNOLOGY GROUP INCSimilar federal contract value in Quantum · null in contracts
- AET, Inc.Similar federal contract value in Quantum · null in contracts
- Quantum XchangeSimilar federal contract value in Quantum · null in contracts
- STAQ, Inc.Similar federal contract value in Quantum · null in contracts
- BlueQubit Inc.Similar federal contract value in Quantum · null in contracts
- QxBranchSimilar federal contract value in Quantum · null in contracts
Regulatory activity · Quantum
- Eliminating Regulations Establishing Fellowships in Laboratory Standardization and Testing for Foreign CitizensNational Institute of Standards and Technology
- Eliminating Obsolete Marking Requirements for Toy, Look-Alike, and Imitation FirearmsNational Institute of Standards and Technology
- Eliminating Obsolete Regulations Related to the Advanced Technology Program and the Technology Innovation ProgramNational Institute of Standards and Technology
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 .