SMC – Innovating Space Technology for a Safer Future

Australia’s ambitions in the space sector are rapidly evolving—from ground station support and satellite launches to building full-scale capabilities in orbital servicing, repair, and debris management. At the forefront of this transformation is Space Machines Company (SMC), a Sydney-based startup with a bold vision: making space sustainable, secure and economically viable for generations to come.

Co-founded by Rajat Kulshrestha, a former defence engineer turned space innovator, SMC is fast emerging as one of the most promising players in the country’s burgeoning space industry. His vision is not just about deploying satellites but reshaping how humanity manages and protects its growing infrastructure in orbit.

Redefining Australia’s Space Future

SMC made headlines recently with the launch of its Optimus spacecraft in March 2024, marking a significant milestone for sovereign Australian space capability. Designed to provide on-orbit services such as inspection, maintenance, relocation and end-of-life disposal of other satellites, Optimus was dubbed Australia’s first “space tow truck.”

“We want to make space safe, secure and sustainable,” Kulshrestha said in an interview. “Everything we rely on in our daily lives—banking, navigation, weather forecasting, even emergency communications—is powered by satellites. But space is getting crowded and chaotic, and we need a smarter way to manage it.”

The need for orbital infrastructure services has never been greater. With over 30,000 tracked objects now orbiting Earth, many of them defunct satellites or debris, collision risks are rising. SMC’s model offers a proactive, commercial solution to prevent what many scientists fear could become an uncontrollable cascade of crashes known as the Kessler Syndrome.

From Perth to Orbit – An Australian Success Story

While headquartered in Sydney, SMC’s work is being watched across the nation. Speaking at the Australian Space Forum in Adelaide, Enrico Palermo, Head of the Australian Space Agency, praised the role of local firms like SMC in driving sovereign innovation.

“Space Machines Company is a stellar example of how Australian companies are not just participating in, but actively shaping, the global space economy,” said Palermo. “Their orbital services are critical to the future of satellite management, and they’re doing it with ingenuity, sustainability, and long-term vision.”

SMC’s work also reflects the multicultural fabric of Australia’s innovation sector. Kulshrestha, who migrated to Australia in his youth from India, credits his bicultural perspective for helping him navigate global partnerships while maintaining local relevance.

“I grew up with two worldviews—one grounded in Indian science and resilience, and another shaped by Australian values of sustainability and long-term planning. That duality helps us think bigger, but act responsibly,” he said in a conversation with InnovationAus.

A Smarter Way to Navigate Space

At the heart of SMC’s strategy is the development of “space infrastructure-as-a-service”. Rather than treating satellites as single-use, disposable hardware, the company envisions a future where satellites are serviced and upgraded in orbit, much like smartphones receive over-the-air updates.

“Our Optimus platform is modular. It can attach to satellites that need repositioning, boost them to different orbits, or de-orbit them safely when they reach end-of-life,” Kulshrestha explained. “It’s the difference between sending up a new satellite every time something breaks versus maintaining the ones already in orbit.”

This approach not only reduces space junk but also saves millions in replacement costs and launch logistics. It is also aligned with Australia’s Defence Strategic Review, which flagged the importance of space resilience and sovereign capability in an increasingly contested domain.

Partnering for Global Impact

SMC’s work is not in isolation. It has inked collaborations with defence contractors, universities, and international launch providers. The Optimus spacecraft, for example, was launched aboard a SpaceX Falcon 9 rocket, with mission control operations managed right from Australian soil.

The company has also worked with UNSW Canberra Space, NASA’s Artemis program partners, and LeoLabs to develop best-practice standards for debris tracking and risk mitigation.

These partnerships have helped position Australia not just as a passive observer but an active contributor to global space governance and innovation.

The Road Ahead

With another Optimus launch slated for 2025 and plans underway to develop autonomous docking systems, in-orbit manufacturing and even lunar support vehicles, SMC is not slowing down. Its ambitions may be cosmic, but its ethos remains grounded: build smart, operate safe, and leave space better than we found it.

As Australia continues to carve its place among spacefaring nations, companies like SMC are showing what’s possible when innovation meets responsibility. And in Rajat Kulshrestha, the industry has a leader who not only dreams big but also engineers bold, pragmatic solutions for the challenges ahead.