Rigetti Computing

In 2024-2025, Rigetti Computing completed a $350 million at-the-market equity offering during Q2 2025, bolstering the company’s cash position to approximately $575 million with no debt. In December 2024, Rigetti launched its 84-qubit Ankaa-3 quantum processor, achieving record-high fidelity with a 99.0% median iSWAP gate fidelity and 99.5% median fSim gate fidelity. In 2025, Rigetti unveiled Cepheus-1-36Q, a 36-qubit multi-chip quantum computer now generally available, demonstrating a two-fold reduction in two-qubit gate error rate compared to the preceding Ankaa-3 system, achieving a median two-qubit gate fidelity of 99%. The company anticipates releasing a 100+ qubit system, also chiplet-based, with a target median two-qubit gate fidelity of 99.5% before the end of 2025. In collaboration with Riverlane and the National Quantum Computing Centre (NQCC), Rigetti won £3.5 million from Innovate UK to enhance quantum error correction capabilities on superconducting quantum computers.

2025 Developments: In June 2025, Rigetti completed a $350 million at-the-market equity offering, bringing total cash to $575 million. In May 2025, Rigetti finalized a $35 million investment from Quanta Computer as part of strategic partnership. In April 2025, Rigetti was granted a $5.48 million award from Air Force Office of Scientific Research for ABAA chip fabrication technology. Rigetti launched 36-qubit multi-chip quantum computer in 2025. Rigetti unveiled roadmap for 100 qubits by end of 2025

Company Information

• Founded: 2013
• Country: United States
• Website: https://rigetti.com
• Categories: hardware, quantum cloud, quantum communications, quantum consulting, quantum investment, quantum machine-learning, quantum networking, quantum optimization, quantum processors, quantum simulation, quantum software, superconducting

Key People

Chad Rigetti (Founder, CEO)

Investment Information

• Status: public
• Ticker: RGTI
• Total Raised: $529M
• Market Cap: $5.1B (September 2025)
• Last Valuation: $1.5B

Recent Funding Rounds

• 2021-10-07: spac - $458M - SPAC merger with Supernova Partners Acquisition Company II
• 2020-03-09: series-c - $71M - Series C funding round

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