Rigetti Computing vs Silicon Quantum Computing
Rigetti Computing
We are scientists, engineers, builders, and visionaries
181 employees · est. 2013 · Berkeley, United States
Silicon Quantum Computing
Creating technology at the cutting edge of science
72 employees · est. 2017 · Australia
Rigetti Computing is the older company (2013 vs 2017).
Side-by-Side Comparison
| Metric | Rigetti Computing | Silicon Quantum Computing |
|---|---|---|
| Founded | ||
| Founded | 2013 older | 2017 |
| Headquarters | ||
| Headquarters | Berkeley, United States | Australia |
| Employees | ||
| Employees | 181 | 72 |
| Industry | ||
| Industry | AI, Big Data, Hardware | Quantum |
| Funding Stage | ||
| Funding Stage | IPO | Series A |
| Total Funding | ||
| Total Funding | $775.53M | $133.40M |
| Funding Rounds | ||
| Funding Rounds | 18 | 2 |
| Services | ||
| Services | Quantum Processing Unit Manufacturing, Quantum Algorithm Development, Quantum Systems Deployment, Quantum Computing Platforms | Development and manufacturing of quantum computing technologies with atomic precision |
| Target Customers | ||
| Target Customers | Quantum Researchers, Technological Innovators, Academic Institutions, Industrial R&D Departments | Large corporations, research institutions, government agencies, and technology companies |
| Taxonomy | ||
| Taxonomy | Quantum ComputingSuperconducting QubitsQuantum Processor ManufacturingFull-stack Quantum SolutionsQuantum Cloud ServicesIntegrated Quantum Devices +9 | Quantum ComputingSilicon-based TechnologyQuantum Electronic DevicesAtomic Precision ManufacturingCommercial-scale TechnologyPrototype Development +8 |
| Website | ||
| Website | rigetti.com | sqc.com.au |
About Rigetti Computing
Rigetti Computing, founded in 2013 and headquartered in the United States, is leading the quantum computing revolution as a pioneer in full-stack quantum solutions. The company is recognized for its innovative approach utilizing superconducting qubits, known for high maturity and fast gate speeds, a...
About Silicon Quantum Computing
Silicon Quantum Computing Pty Limited (SQC) is an Australian private company at the forefront of efforts to build a commercial-scale, silicon-based quantum computer and bring quantum computing to market. Founded in 2017, SQC is the only company world-wide that can manufacture quantum electronic devi...
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Compiled from the BounceWatch company index. We last looked at Rigetti Computing on 16 Apr 2026, and Silicon Quantum Computing on 11 Jun 2025. Where a field is blank here, it means we have not recorded it — not that the answer is zero. How we source and date this.
