What is STAX Engineering?
STAX Engineering provides a specialized, flexible exhaust capture system engineered to integrate seamlessly with diverse vessel architectures without requiring structural modifications. By capturing emissions directly at the berth, the system effectively filters 99% of particulate matter and 95% of nitrogen oxides, converting hazardous exhaust into purified gas. This technology addresses the urgent need for cleaner port operations, having already processed over 13,000 hours of vessel activity and successfully mitigating 100 tons of pollutants. The company's market position is defined by its ability to provide immediate, scalable environmental compliance for the shipping industry, bridging the gap between legacy maritime infrastructure and modern air quality standards.
How much funding has STAX Engineering raised?
STAX Engineering has raised a total of $260M across 3 funding rounds:
Other Financing Round
$40M
Other Financing Round
$70M
Unspecified
$150M
Other Financing Round (2024): $40M with participation from Upper 90
Other Financing Round (2025): $70M led by Firstime Ventures and Deutsche Bank
Unspecified (2026): $150M supported by Bain Capital
Key Investors in STAX Engineering
Upper 90
A hybrid investment firm providing tailored debt and equity solutions to capital-intensive technology startups, focusing on flexible financing to help founders retain ownership.
Firstime Ventures
An investment firm dedicated to supporting sustainable startups that align with UN Sustainable Development Goals, with a strong emphasis on climate-tech innovation.
Bain Capital
A leading global private investment firm that provides deep sector expertise and capital solutions to drive innovation and long-term growth across diverse industries.
What's next for STAX Engineering?
With the support of its latest capital backing, STAX Engineering is poised to scale its operations to meet the increasing regulatory pressure on port authorities and shipping lines to reduce their carbon footprint. The strategic focus will likely shift toward expanding its footprint in major global logistics hubs, enhancing its proprietary filtration technology, and solidifying long-term partnerships with international maritime operators. As the company transitions from early-stage deployment to enterprise-level scaling, the focus remains on operational efficiency and the continued validation of its technology as a standard-bearer for maritime environmental stewardship.
See full STAX Engineering company page
