Code, compile and deploy quantum applications from classical languages.

Register for early access

A universal software developer tool to program quantum applications

We are pioneering an approach to quantum computing that allows users to write programs in classical languages that can be compiled and run on conventional or quantum computers, without any knowledge in quantum computing.

Whether you are a software developer interested in quantum computing, or an expert who is highly proficient in quantum information theory, you'll be able to gain a quantum speedup without the need to understand the underlying computational model. Our compiler automatically constructs quantum algorithms from classical code, so you can develop quantum algorithms for new domains without deep quantum expertise.

About us

We democratise quantum computing applications for businesses by removing the need for quantum algorithms knowledge for software developers. For that, we are building a compiler that automatically constructs quantum algorithms from classical code.

Our company was founded in 2018 in Singapore by Dr Joe Fitzsimons, DPhil from Oxford, a specialist in quantum computing and computational complexity theory with over 15 years of experience. The leadership team also includes Dr Si-Hui Tan, PhD from MIT, who has been actively involved in quantum research for 15 years.

A seed round led by SGInnovate and seed-plus led by Sequoia Capital India allowed our company to bring its financing to SGD 4.5 million (USD 3.23 million). Other investors include Abies Ventures, DCVC, Qubit Protocol, Summer Capital and Posa CV.

Our team

Our interdisciplinary team of physicists and computer scientists is trained in top-tier science and engineering universities, such as Oxford, MIT, University of Melbourne, University of California, Berkeley, University of Waterloo, Canada, and Brown University.

Our quantum scientists average 8+ years of postdoc working experience. Individually, we have published extensively in peer-reviewed journals and continue contributing to scientific research.

Together with seasoned technical team and business staff, we pursue the same ambition: enable quantum applications for the real world by bridging the gap between software engineering and quantum computing.

Latest news

Horizon joins the Surge community
October 23, 2023

Horizon is delighted to become part of the Surge community, aligning with the Surge 09 cohort.

Want to know more?
Go to our News page
Horizon joins the Surge community
October 23, 2023

Horizon is delighted to become part of the Surge community, aligning with the Surge 09 cohort.

"The State of Quantum" in a panel at TechCrunch Disrupt 2023
September 20, 2023

At one of the most anticipated tech conferences of the year, our CEO Dr Joe Fitzsimons was invited to discuss "The State of Quantum" in a panel.

Horizon’s CSO at CogX Festival 2023
September 14, 2023

Horizon’s CSO Si-Hui Tan gave her perspective on quantum computing as part of a panel at the CogX Festival 2023.

Horizon’s CEO speaking at VivaTech Conference 2023 in Paris
June 14, 2023

Our CEO Dr Joe Fitzsimons was on stage to discuss “What’s next in quantum computing?”

Europe’s precarious path to quantum computing supremacy
May 11, 2023

Ahead of the TNW Conference in Amsterdam where our CEO Dr Joe Fitzsimons will be a speaker, he sat with Thomas Macaulay to discuss the tremendous potential of quantum computing and our industry’s current challenges, from talent shortage to the need for patient capital.

Horizon Quantum Computing joins the newly launched Trinity Quantum Alliance as a founding partner
May 5, 2023

The Trinity Quantum Alliance is a new collaboration that brings together experts from research and industry, and which will provide a new custom space in Trinity East for innovative projects in quantum science and technology, simulation, education and computation in Ireland.‍

Horizon Quantum Computing raises USD 18.1 million Series A to advance quantum software development
March 31, 2023

Singapore, 31 March 2023 – Horizon Quantum Computing, a Singapore-based company building software development tools to unlock the potential of quantum computing hardware, announced today that it has raised USD 18.1 million Series A investment from Sequoia Capital India, Tencent, SGInnovate, Pappas Capital and Expeditions Fund.

Implementing a quantum-secured network in a metropolitan area
March 6, 2023

AWS’s Quantum Technologies Blog presents the successful trial of quantum-secured communication between the Centre for Quantum Technologies and Horizon.

5 questions with quantum scientist Dr Tan Si-Hui
February 8, 2023

In The Business Times, our CSO Dr Si-Hui Tan talks about the diverse range of expertise that are working together to make quantum computing technology widely accessible.

Horizon Quantum Computing talk at Q2B22SV
January 28, 2023

Horizon sponsored the 6th edition of Q2B Silicon Valley in December 2022, where the company’s CEO gave a talk “Quantum Computing Beyond the Circuit Model”.

10 quantum leaders running quantum computing companies
January 16, 2023

Quantum Zeitgeist featured Horizon's CEO Joe Fitzsimons in their list of 10 quantum leaders running quantum computing companies: "We love the mission to make Quantum Computing a general-purpose quantum technology. Making quantum computing truly accessible to everyone could be a world-leading quest, and we like it!”

What’s next for quantum computing
January 6, 2023

In an MIT Technology Review article, key quantum computing industry players are reflecting on the trends in the field. Among them, our CEO Joe Fitzsimons who gives his predictions on moving beyond the NISQ era and the need for Turing completeness.

On Newstalk: Horizon quantum computing opening Dublin office
December 22, 2022

Our CEO, Joe Fitzsimons was on the Newstalk programme Breakfast Business with Joe Lynam where he talked about Horizon’s expansion in Europe with a new office opening in Ireland along with new job opportunities.

​​What good is a newborn baby? Quantum tech is in its infancy, but industry watchers see plenty of potential
December 16, 2022

Singapore’s great quantum quest makes the cover story of The Business Times. Our CEO Joe Fitzsimons, who was interviewed for the article, speaks about the fast development of the technology: "Year by year, month by month, even week by week, progress is made in the field."

Code translation: maximizing quantum computing applications
November 29, 2022

In an interview for TechHQ, our CEO Joe Fitzsimons talks about the potential of more structured quantum algorithms over NISQ variational algorithms.

Horizon Quantum Computing announces plans for European expansion with an office in Ireland
November 24, 2022

The Dublin office will be Horizon’s first outside of Singapore.

Horizon Quantum Computing to open European office in Ireland
November 24, 2022

Our CEO Dr Joe Fitzsimons shared in an interview with The Irish Times about the factors that made Horizon choose Ireland for our first overseas office.

Software developer tool for quantum computers launching soon
November 11, 2022

Horizon Quantum Computing is building an IDE that will help developers who are proficient in languages like C and C++ to build quantum apps.

Launch of ‘20 Conversations’ book with insights from business leaders in Singapore including Horizon’s CEO Joe Fitzsimons

November 11, 2022

As part of its 20th-anniversary celebrations, the Singapore Businesses Federation launched the book ‘20 Conversations’. Deputy Prime Minister Mr Heng Swee Keat was the guest of honour at the event along with the attendance of 100 business leaders, trade associations and chamber leaders.

Horizon Quantum Computing is a proud sponsor of Q2B 2022 in Silicon Valley

October 7, 2022

The 6th edition of the Q2B Conference will be held in Silicon Valley, California from 6 - 8 December, 2022.

Want to know more?
Go to our News page

Stay up to date

Stay up to date on the latest news and developments by signing up for our newsletter.

Thank you! You are now subscribed to our newsletter.
Thank you! You are now subscribed to our news letter.
Oops! Something went wrong while submitting the form.

Get access to our technology

We are currently developing our tools and will be progressively rolling out features as they are ready.
If you are interested in getting early access to our technology, please register below.