Phase Four Propels Forward with Series C Funding
January 14, 2025, 4:02 am

Location: United States, California, El Segundo
Employees: 11-50
Founded date: 2015
Total raised: $26M
In the vast expanse of space, where innovation meets ambition, Phase Four is making waves. The Los Angeles-based company, a pioneer in in-space propulsion design and manufacturing, recently announced the first closing of its Series C funding round. This milestone is not just a financial boost; it’s a signal flare in the crowded sky of the space industry.
Led by Artemis Group Capital, the funding round is a testament to the growing confidence in Phase Four’s innovative propulsion solutions. The exact amount raised remains under wraps, but reports suggest that nearly 60% of the target has been secured. This influx of capital comes at a crucial time. The demand for in-space propulsion is skyrocketing, driven by the surge in small satellite constellations and the need for enhanced maneuverability in orbit.
Phase Four is not just another player in the space race. It’s a key supplier for both commercial and government missions. The company’s propulsion systems are designed to optimize mission effectiveness while controlling costs. In a world where every dollar counts, this is no small feat. The propulsion solutions offered by Phase Four are akin to the engines of a spacecraft—vital for navigating the cosmos.
The company’s partnership with Redwire Space on the Valkyrie propulsion system underscores its commitment to innovation. Together, they are crafting Hall Effect Thrusters that promise to be robust and reliable. This collaboration is more than just a business arrangement; it’s a strategic alliance that positions both companies as leaders in the burgeoning market for in-space propulsion.
As the space economy expands, so does the need for advanced propulsion technologies. Phase Four is poised to meet this demand head-on. The company plans to ramp up production of its Valkyrie family of thrusters to a minimum of 250 units per year. This ambitious goal reflects the urgency of the moment. The supply chain for space-related technologies is struggling to keep pace with the growing appetite for satellite launches and space missions.
The funds from this Series C round will be channeled into several key areas. First, there’s the expansion of manufacturing capabilities. This is crucial. As demand increases, so must the ability to produce these advanced systems efficiently. Second, the company aims to accelerate its research and development efforts. In the fast-evolving landscape of space technology, staying ahead of the curve is essential. Finally, Phase Four intends to deepen its strategic partnerships with other key players in the space economy. Collaboration is the name of the game in this industry.
The leadership at Phase Four is well aware of the challenges ahead. The Chief Technology Officer has emphasized the importance of scaling operations to meet the surging global demand. The space industry is not just about exploration; it’s about security, communication, and economic growth. As geopolitical tensions rise, having a stable domestic source for critical components like propulsion systems becomes increasingly vital.
In a world where supply chains are often disrupted by unforeseen events, Phase Four’s commitment to building a reliable and robust manufacturing base is commendable. The company is not just responding to current needs; it’s anticipating future demands. This forward-thinking approach is what sets Phase Four apart from its competitors.
The space economy is no longer a distant dream; it’s a reality. With companies like Phase Four leading the charge, the future looks bright. The potential for growth is immense. As satellite technology becomes more sophisticated, the need for advanced propulsion systems will only increase. Phase Four is strategically positioned to capitalize on this trend.
Investors are taking notice. The participation of Artemis Group Capital, led by a former NASA Administrator, adds a layer of credibility to Phase Four’s endeavors. This backing is not just financial; it’s a vote of confidence in the company’s vision and capabilities. The space industry is a high-stakes game, and having experienced players on your side can make all the difference.
As Phase Four prepares to close its Series C round by the end of Q1 2025, the excitement is palpable. The company is on the brink of a significant transformation. With increased funding, enhanced manufacturing capabilities, and a commitment to innovation, Phase Four is ready to soar.
In conclusion, Phase Four is not just another company in the space sector. It’s a beacon of innovation and resilience. As it navigates the complexities of the space economy, the company is poised to play a pivotal role in shaping the future of in-space propulsion. The journey ahead is filled with challenges, but with determination and strategic foresight, Phase Four is set to lead the way into the final frontier. The stars are within reach, and Phase Four is ready to propel us there.
Led by Artemis Group Capital, the funding round is a testament to the growing confidence in Phase Four’s innovative propulsion solutions. The exact amount raised remains under wraps, but reports suggest that nearly 60% of the target has been secured. This influx of capital comes at a crucial time. The demand for in-space propulsion is skyrocketing, driven by the surge in small satellite constellations and the need for enhanced maneuverability in orbit.
Phase Four is not just another player in the space race. It’s a key supplier for both commercial and government missions. The company’s propulsion systems are designed to optimize mission effectiveness while controlling costs. In a world where every dollar counts, this is no small feat. The propulsion solutions offered by Phase Four are akin to the engines of a spacecraft—vital for navigating the cosmos.
The company’s partnership with Redwire Space on the Valkyrie propulsion system underscores its commitment to innovation. Together, they are crafting Hall Effect Thrusters that promise to be robust and reliable. This collaboration is more than just a business arrangement; it’s a strategic alliance that positions both companies as leaders in the burgeoning market for in-space propulsion.
As the space economy expands, so does the need for advanced propulsion technologies. Phase Four is poised to meet this demand head-on. The company plans to ramp up production of its Valkyrie family of thrusters to a minimum of 250 units per year. This ambitious goal reflects the urgency of the moment. The supply chain for space-related technologies is struggling to keep pace with the growing appetite for satellite launches and space missions.
The funds from this Series C round will be channeled into several key areas. First, there’s the expansion of manufacturing capabilities. This is crucial. As demand increases, so must the ability to produce these advanced systems efficiently. Second, the company aims to accelerate its research and development efforts. In the fast-evolving landscape of space technology, staying ahead of the curve is essential. Finally, Phase Four intends to deepen its strategic partnerships with other key players in the space economy. Collaboration is the name of the game in this industry.
The leadership at Phase Four is well aware of the challenges ahead. The Chief Technology Officer has emphasized the importance of scaling operations to meet the surging global demand. The space industry is not just about exploration; it’s about security, communication, and economic growth. As geopolitical tensions rise, having a stable domestic source for critical components like propulsion systems becomes increasingly vital.
In a world where supply chains are often disrupted by unforeseen events, Phase Four’s commitment to building a reliable and robust manufacturing base is commendable. The company is not just responding to current needs; it’s anticipating future demands. This forward-thinking approach is what sets Phase Four apart from its competitors.
The space economy is no longer a distant dream; it’s a reality. With companies like Phase Four leading the charge, the future looks bright. The potential for growth is immense. As satellite technology becomes more sophisticated, the need for advanced propulsion systems will only increase. Phase Four is strategically positioned to capitalize on this trend.
Investors are taking notice. The participation of Artemis Group Capital, led by a former NASA Administrator, adds a layer of credibility to Phase Four’s endeavors. This backing is not just financial; it’s a vote of confidence in the company’s vision and capabilities. The space industry is a high-stakes game, and having experienced players on your side can make all the difference.
As Phase Four prepares to close its Series C round by the end of Q1 2025, the excitement is palpable. The company is on the brink of a significant transformation. With increased funding, enhanced manufacturing capabilities, and a commitment to innovation, Phase Four is ready to soar.
In conclusion, Phase Four is not just another company in the space sector. It’s a beacon of innovation and resilience. As it navigates the complexities of the space economy, the company is poised to play a pivotal role in shaping the future of in-space propulsion. The journey ahead is filled with challenges, but with determination and strategic foresight, Phase Four is set to lead the way into the final frontier. The stars are within reach, and Phase Four is ready to propel us there.