Horizon Quantum

Horizon Quantum is a Singapore-based company that develops advanced programming tools to simplify and accelerate software creation for quantum computers. Founded in 2018 by Dr. Joe Fitzsimons, a quantum computing expert, the company aims to make quantum software development accessible to a wider audience by eliminating the need for prior expertise in quantum computing. The company's core offerings include a new generation of programming tools that allow software developers to build quantum-enhanced applications with ease. These tools abstract the complexities of quantum physics and hardware, enabling developers to work at higher levels of abstraction similar to traditional software engineering. Horizon Quantum automates the construction of quantum algorithms from classical code, bridging the gap between quantum hardware and software developers. Targeting software developers and organizations interested in quantum computing, Horizon Quantum seeks to expand the adoption of quantum technology across various industries. The company is committed to making the power of quantum computing available to every software developer.

Information Technology & Services Singapore, Singapore Founded 2018 ~17 employees Private · Series A

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Employees
17
0% in the 3 months to Jun 2025
Revenue / employee
$147K
Revenue ~$2.5M
Total funding
$23.6M
Last round Series A, Mar 2023
12-month attrition
6.3%
Tech: 0%
H1B sponsor
NA

Headcount trend

Horizon Quantum went from 8 employees in Jul 2023 to 17 in Jun 2025. Jan to Jun 2025: 2 people joined, 0 left.

Headcount data through Jun 2025

Org structure

Headcount by department

Other10
Marketing2
Product2
Operations1
Finance1
HR1

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Funding

  • Mar 2023 · Series A · $6.1M · Sequoia Capital India, Tencent, SGInnovate
  • Apr 2022 · Series A · $12M · Tencent Holdings
  • Jun 2020 · Seed · $2.4M · Abies Ventures, Data Collective DCVC, Sequoia Capital India
  • Jun 2020 · Seed · $3.2M · Sequoia India, SGInnovate, Abies Ventures
  • Jun 2019 · Seed · SG Innovate, Centre for Quantum Technologies

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Horizon Quantum FAQ

How many employees does Horizon Quantum have?

Horizon Quantum has about 17 employees, unchanged over the 3 months to Jun 2025.

What is Horizon Quantum's revenue per employee?

Horizon Quantum makes about $147K in revenue per employee, based on $2.5M annual revenue and 17 employees.

How much funding has Horizon Quantum raised?

Horizon Quantum has raised $23.65M in total funding; its latest round was Series A in Mar 2023.

Data from Company Prospectus, DOL LCA disclosures, WARN notices and 6figr salary profiles.