Southern Ocean Subsea
Our Origins

Inspired by the challenges and opportunities of the Southern Oceans, SoSub was established with a straightforward mission to deliver smarter, more efficient solutions for the subsea industry.

We’re driven by innovation but guided by practicality, combining advanced technology with hands-on expertise to enhance how subsea operations are carried out every day.

see our award winning achievements

Our approach is simple: innovate with purpose, operate with precision, and always prioritize the safety and success of our partners. By bridging practical solutions with proven technology, we help businesses navigate the complexities of subsea operations with confidence and efficiency.

2017
The Beginning of a Bigger Vision

SoSub is founded by Kelsey Treloar with a bold mission: bring world-class subsea capability to Australia’s aquaculture and offshore sectors.

Becomes an authorised Blue Robotics distributor, setting the foundation for future innovation.

2018
Supporting Australia’s Aquaculture From Below the Surface
SoSub establishes itself as a trusted partner in the aquaculture industry, repairing and maintaining subsea ROVs and FNC8 net cleaners, keeping farm operations running safely and efficiently.
2019
Entering the Underwater Drone Frontier
The company expands its technology portfolio, becoming an authorised distributor of QYSEA FIFISH underwater drones and unlocking new possibilities in underwater inspection and operations.
2020
Strength Through Partnership
Dive Works Subsea Solutions joins as part-owner, bringing two decades of offshore ROV expertise, operational experience, and engineering innovation — accelerating SoSub’s growth trajectory.
2021
The Birth of the Apama ROV NRS
After years of hands-on industry insight, SoSub develops the first prototype of the Apama Net Repair System, a breakthrough solution designed to transform how aquaculture farms maintain their infrastructure.
2022
Funding, Validation & Global Ambition
SoSub secures Accelerator Commercialisation funding from the Australian Government, enabling rapid development and testing.
International patent filings begin across key aquaculture markets, setting the stage for global export.
2023
Trials, Proof & Industry Recognition
The Apama NRS completes successful trials with major aquaculture farms, proving its real-world value.

SoSub is recognised as a finalist in the Australian Innovation Competition, a signal of industry-wide momentum.

2024
Manufacturing the Future
SoSub launches a state-of-the-art advanced manufacturing facility featuring 3D printing, CNC machining, a 50,000 L test tank, and pressure-testing capabilities.
Apama NRS Prototype No. 8 becomes fully export-ready.

Multiple innovation awards highlight SoSub’s leap into advanced commercial manufacturing.

2025
National Award Winners & Global Momentum
A landmark year: SoSub wins multiple national iAwards for Advanced Manufacturing and Industry Innovation, cementing its position as one of Australia’s most exciting technology companies.

The Apama NRS enters the commercial spotlight, with demand building across international aquaculture markets

Vision

Southern Ocean Subsea envisions a future where remotely operated technologies revolutionise underwater operations, significantly reducing the reliance on human diving in commercial and industrial sectors. By establishing a state-of-the-art Australian manufacturing base, we aim to lead in delivering globally competitive innovations that enhance efficiency and mitigate risks across various industries, including aquaculture, marine science, engineering, and defence.

Our Mission

Southern Ocean Subsea is committed to disrupting the status quo in subsea environments by pioneering cutting-edge solutions that redefine underwater tasks. Our mission is to improve aquaculture operations, develop sustainable expertise in subsea engineering, and provide innovative, Australian-made technologies to global customers, ensuring efficiency, safety, and value in every project.

Our Core Values

Innovation

Unyielding in our pursuit to break the bounds, transforming challenges into innovative solutions.

Various Expertise

Steadfast in our commitment to deliver unparalleled quality, precision and reliability in every endeavour.

Sustainability

As stewards of the ocean, we are dedicated to practices that honour and preserve the marine ecosystem.

Partnership

Our collaborations are the lifeblood that fuels continuous growth, learning, and advancement.

Our Industry Associations

Member of Tasmanian Marine Networks (TMN)

https://www.tmn.org.au/

We are pleased to be a member of the Tasmanian Marine Networks (TMN), a collaborative community dedicated to advancing maritime and marine industry initiatives in Tasmania. Our membership with TMN connects us with key stakeholders and supports our commitment to enhancing the maritime sector in the region.

Affiliation with Australian Maritime College (AMC)

https://www.amc.edu.au/

We are proud to be affiliated with the Australian Maritime College (AMC), a renowned institution dedicated to maritime education and research. This partnership allows us to leverage AMC’s expertise and resources to enhance our offerings and deliver exceptional value to our community.

Robotics Australia Group

https://www.roboausnet.com.au/

Robotics Australia Group is the peak body for robotics in Australia. They advocate, connect, inform and promote on behalf of, and for their network members. They are the voice for robotics in Australia, representing from Industrial Robots to Field Robots and anything in between.

TasICT

https://www.tasict.com.au/ 

We are proud to be a new member of TasICT, Tasmania’s leading industry body for information and communications technology. This partnership is a key step in our mission to drive innovation in subsea technology and marine robotics. As part of the TasICT community, we’re excited to collaborate with other tech-driven businesses to help shape the future of Tasmania’s growing tech sector. By joining forces with TasICT, we aim to bring cutting-edge solutions to the local and global markets, while supporting the development of sustainable, high-tech industries.

Trusted by Industry Leaders

Our facilities are trusted by global aquaculture operators, marine infrastructure developers, and subsea innovators who rely on precision and reliability.