Rigetti Quantum Computing

Rigetti Quantum Computing

Rigetti Quantum Computing is a quantum computing company founded by Chad Rigetti.

Rigetti Quantum Computing, a quantum computing company, was founded in 2013 by Chad Rigetti and based in Berkeley and Fremont, California. As of 2019, the company has raised over $119 million from investors, including Andreessen Horowitz and Vy Capital and has over 50 U.S. patent applications on file. Rigetti also participated in the YC S14 cohort of Y Combinator and raised an estimated $69,450,000.

Integrated quantum-classical computing leverages today’s existing high-power processors and the advanced computational power of quantum chips to accelerate deployment of quantum computing in the near term. Rigetti deploys full-stack solutions for this integrated computing environment.

Rigetti designs and manufacture s superconducting quantum integrated circuits at their in-house fabrication facility. The company packages and deploys those chips in cryogenic environments and build s software that integrates their systems directly into cloud infrastructure.

Rigetti's quantum-first cloud platform provides dedicated access to their quantum hardware through a virtual development environment. Quantum Cloud Services is the company's quantum-first integrated cloud platform that gives users access to their real quantum hardware through a virtual programming environment. It allows the user to develop and execute quantum-classical programs in a virtual, classical compute environment.



Rigetti Quantum Computing announced the first instalment of their Seed round funding with $2.5 million raised. Investors in the round included Y Combinator, Tim Draper, Taryn Naidu, Susa Ventures, Streamlined Ventures, Pegasus Tech Ventures, Paul Buchheit, Morado Ventures, Ian McNish, Felicis Ventures, Farzad Nazem, Erick Miller, David Beyer, Data Collective, Charlie Songhurst, Berggruen Holdings, Alchemist Accelerator and AME Cloud Ventures.

On August 1, 2015 Rigetti Quantum Computing announced $2.2 million in Seed Funding from Acequia Capital.

Series A

Rigetti Quantum Computing announced the close of Series A on January 1, 2016 with $24 million raised. Andreessen Horowitz led the round with participation from Sutter Hill Ventures, Susa Ventures, Streamlined Ventures, Lux Capital and Bloomberg Beta.

Series B

On March 28, 2017 Rigetti Quantum Computing announced the close of their Series B round with $40 million raised. Andreessen Horowitz and Vy Capital led the round with participation from Y Combinator, Morado Ventures, FF Science, Data Collective and AME Cloud Ventures.

Series C

On December 1, 2017 Rigetti Quantum Computing announced the close of their Series C with $50 million raised. Streamlined Ventures and Seabed VC participated in the round.

Venture funding

On July 11, 2019 Rigetti Quantum Computing announced raising an undisclosed amount of venture funding from the Capikris Foundation.


Announced on July 11, 2019, Rigetti Quantum Computing acquired QxBranch, an Adelaide-based quantom software startup. The deal was an all-equity transaction. QxBranch's staff, in Washington, D.C., Adelaide and London, will focus on building software development tools and applications and work with customers to implement specialized quantum algorithms for Rigetti.


December 2, 2019

Rigetti Quantum Computers Now Available via Amazon Web Services.

Rigetti announces that its quantum computers will be available to users through Amazon Braket, a new, fully managed Amazon Web Services (AWS) solution that allows scientists, researchers, and developers to begin experimenting with computers from quantum hardware providers in a single place.

July 11, 2019

Quantum Computing Firm Rigetti acquires QxBranch.

September 7, 2018

Rigetti announces its hybrid quantum computing platform -- and a $1M prize

Rigetti announces the launch of its new hybrid quantum computing platform.

Funding rounds

Funding round
Funding type
Funding round amount (USD)
Funding round date
Rigetti Computing funding round, March 2017
March 2017
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Chad Rigetti


Further reading


Quantum computing is almost ready for business, startup says

Sean Captain


September 7, 2018

The Quantum Computer Factory That's Taking on Google and IBM

Tom Simonite


June 20, 2017

Documentaries, videos and podcasts





Frederic Lardinois
August 4, 2020
Rigetti Computing, the quantum computing startup that is challenging industry heavyweights like IBM, Microsoft and D-Wave, today announced that it has closed a $79 million Series C funding round. The round was led by Bessemer Venture Partners, with participation from Franklin Templeton, Alumni Ventures Group, DCVC, EDBI, Morpheus Ventures, and Northgate Capital. Bessemer's Tomer Diari [...]


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