Main Sequence Ventures, established in 2017 and based in Eveleigh, Australia, is a venture capital firm that invests in early-stage companies developing deep tech or frontier technologies to address global challenges. The firm backs ambitious founders creating the next set of global industries, with investments supported by the Australian National Science Agency, CSIRO, the Australian Federal Government, and private investors. Main Sequence leverages world-class research from Australian public research organizations, including CSIRO and universities, to identify and nurture promising startups.
QuintessenceLabs specializes in data security technology and solutions designed to protect valuable digital information throughout its lifecycle—whether in transit, at rest, or in use. The company utilizes principles of quantum science to enhance its cybersecurity applications, focusing on robust cryptographic strategies that centralize data security management and policy control. QuintessenceLabs aims to maximize security while improving returns on investment for its clients and minimizing the complexities associated with data protection. Its diverse customer base includes notable financial institutions, technology providers, federal agencies, and defense contractors, underscoring its broad applicability across various sectors.
Arkeus
Venture Round in 2025
Arkeus is a technology company that specializes in the rapid development of autonomous optical systems for various surveillance and reconnaissance missions. These systems, optimized for surface sensors, aircraft, and drones, are designed to expedite decision-making in challenging environments, supporting applications such as intelligence gathering, border protection, force protection, and search and rescue across land, sea, and space.
Q-CTRL
Series B in 2024
Q-CTRL, established in 2017 and based in Pyrmont, Australia, specializes in developing software tools and firmware for the quantum computing sector. Its core solution focuses on reducing and controlling quantum bit errors in quantum hardware devices, a critical challenge in the field. Q-CTRL's quantum control infrastructure software caters to R&D professionals and end-users, accelerating the development of useful quantum computers. The company also develops "software-defined" quantum sensors for applications in defense, intelligence, navigation, and earth observation. Q-CTRL works with global leaders in quantum technology, including universities, national labs, and industry partners, and is an IBM Quantum Startup network member. It has received numerous awards and recognitions, including being named a World Economic Forum Global Innovator and featured in prominent international publications.
Arkeus
Seed Round in 2023
Arkeus is a technology company that specializes in the rapid development of autonomous optical systems for various surveillance and reconnaissance missions. These systems, optimized for surface sensors, aircraft, and drones, are designed to expedite decision-making in challenging environments, supporting applications such as intelligence gathering, border protection, force protection, and search and rescue across land, sea, and space.
Quasar Satellite Technologies
Seed Round in 2023
Quasar Satellite Technologies is a sovereign company that specializes in delivering space data as a service. The company provides a multi-beam phased array ground station solution designed for satellite owners and operators in both the commercial and defense sectors. Their fully software-defined antenna system offers low latency and high throughput, ensuring secure satellite data transmission. Quasar's technology features instantaneous full-sky visibility, which allows for deep characterization of objects. This capability enables satellite operators to access cost-effective ground station services while enhancing space communications and domain awareness. Through its offerings, Quasar aims to support the LEO, MEO, and GEO satellite markets with scalable and interoperable services.
Q-CTRL
Series B in 2023
Q-CTRL, established in 2017 and based in Pyrmont, Australia, specializes in developing software tools and firmware for the quantum computing sector. Its core solution focuses on reducing and controlling quantum bit errors in quantum hardware devices, a critical challenge in the field. Q-CTRL's quantum control infrastructure software caters to R&D professionals and end-users, accelerating the development of useful quantum computers. The company also develops "software-defined" quantum sensors for applications in defense, intelligence, navigation, and earth observation. Q-CTRL works with global leaders in quantum technology, including universities, national labs, and industry partners, and is an IBM Quantum Startup network member. It has received numerous awards and recognitions, including being named a World Economic Forum Global Innovator and featured in prominent international publications.
Advanced Navigation
Series B in 2022
Advanced Navigation, established in 2012 and based in Sydney, Australia, specializes in developing and manufacturing high-quality navigational technologies and robotics. The company's portfolio includes acoustic underwater navigation systems, GNSS/INS devices, MEMS AHRS, logging and post-processing units, satellite compasses, speed sensors, subsea antennas, and INS. With a background in mission-critical robotics and expertise spanning sensors, GNSS, inertial navigation, RF technologies, acoustics, robotics, AI, and algorithms, Advanced Navigation's products are designed to operate accurately under challenging conditions, serving clients in manufacturing and warehousing facilities to enhance process optimization and productivity.
Q-CTRL
Series B in 2021
Q-CTRL, established in 2017 and based in Pyrmont, Australia, specializes in developing software tools and firmware for the quantum computing sector. Its core solution focuses on reducing and controlling quantum bit errors in quantum hardware devices, a critical challenge in the field. Q-CTRL's quantum control infrastructure software caters to R&D professionals and end-users, accelerating the development of useful quantum computers. The company also develops "software-defined" quantum sensors for applications in defense, intelligence, navigation, and earth observation. Q-CTRL works with global leaders in quantum technology, including universities, national labs, and industry partners, and is an IBM Quantum Startup network member. It has received numerous awards and recognitions, including being named a World Economic Forum Global Innovator and featured in prominent international publications.
QuintessenceLabs
Series B in 2021
QuintessenceLabs specializes in data security technology and solutions designed to protect valuable digital information throughout its lifecycle—whether in transit, at rest, or in use. The company utilizes principles of quantum science to enhance its cybersecurity applications, focusing on robust cryptographic strategies that centralize data security management and policy control. QuintessenceLabs aims to maximize security while improving returns on investment for its clients and minimizing the complexities associated with data protection. Its diverse customer base includes notable financial institutions, technology providers, federal agencies, and defense contractors, underscoring its broad applicability across various sectors.
Trellis Data
Venture Round in 2020
Trellis Data Pty Ltd is a Canberra-based company that designs and develops an end-to-end machine learning platform. Known for its Trellis Intelligence Platform (TIP), the company provides insights, analytics, and intelligence on ingested data through its deep learning software-as-a-service offerings. Trellis Data specializes in artificial intelligence and machine learning solutions, catering primarily to the Australian Government, defense and intelligence sectors, as well as the financial services industry. Founded in 2016, the company was previously known as Funtech.Com.Au Pty Ltd before rebranding in May 2017. Trellis Data's platform enables businesses to focus on solving business problems rather than the complexities of machine learning model development.
Advanced Navigation
Series A in 2019
Advanced Navigation, established in 2012 and based in Sydney, Australia, specializes in developing and manufacturing high-quality navigational technologies and robotics. The company's portfolio includes acoustic underwater navigation systems, GNSS/INS devices, MEMS AHRS, logging and post-processing units, satellite compasses, speed sensors, subsea antennas, and INS. With a background in mission-critical robotics and expertise spanning sensors, GNSS, inertial navigation, RF technologies, acoustics, robotics, AI, and algorithms, Advanced Navigation's products are designed to operate accurately under challenging conditions, serving clients in manufacturing and warehousing facilities to enhance process optimization and productivity.
Q-CTRL
Series A in 2019
Q-CTRL, established in 2017 and based in Pyrmont, Australia, specializes in developing software tools and firmware for the quantum computing sector. Its core solution focuses on reducing and controlling quantum bit errors in quantum hardware devices, a critical challenge in the field. Q-CTRL's quantum control infrastructure software caters to R&D professionals and end-users, accelerating the development of useful quantum computers. The company also develops "software-defined" quantum sensors for applications in defense, intelligence, navigation, and earth observation. Q-CTRL works with global leaders in quantum technology, including universities, national labs, and industry partners, and is an IBM Quantum Startup network member. It has received numerous awards and recognitions, including being named a World Economic Forum Global Innovator and featured in prominent international publications.
Q-CTRL
Seed Round in 2017
Q-CTRL, established in 2017 and based in Pyrmont, Australia, specializes in developing software tools and firmware for the quantum computing sector. Its core solution focuses on reducing and controlling quantum bit errors in quantum hardware devices, a critical challenge in the field. Q-CTRL's quantum control infrastructure software caters to R&D professionals and end-users, accelerating the development of useful quantum computers. The company also develops "software-defined" quantum sensors for applications in defense, intelligence, navigation, and earth observation. Q-CTRL works with global leaders in quantum technology, including universities, national labs, and industry partners, and is an IBM Quantum Startup network member. It has received numerous awards and recognitions, including being named a World Economic Forum Global Innovator and featured in prominent international publications.
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