NS2’s real-time water quality system, supported by BlueInvest, offers a novel tool for environmental governance and ESG compliance. ESG BROADCAST shares key takeaways.
Regulatory Extract:
Portugal-based startup Nitrogen Sensing Solutions (NS2) has introduced a real-time nitrogen sensing system that transforms traditional approaches to water quality monitoring. Backed by the European Union’s BlueInvest Readiness Assistance Programme, NS2 has secured €100,000 in venture capital, aiming to scale its cutting-edge biosensor solution to new markets in aquaculture, agriculture, and environmental management.
Founded in 2019 by biochemistry expert Dr Gabriela Almeida, NS2 builds on two decades of electrochemical biosensor research. The company has developed compact, smartphone-compatible devices that measure nitrogen compounds—ammonium, nitrites, and nitrates—using disposable test strips and portable readers. These biosensors provide real-time data to fish farmers, regulators, and water management authorities, bypassing delays from conventional laboratory testing.
“Excess nitrogen can severely disrupt aquatic ecosystems and production cycles,” explains Dr Almeida. “Our mission is to put precision monitoring tools directly into the hands of decision-makers.” The technology is designed for field deployment and allows preventive actions, minimising toxic build-ups that could lead to major environmental or economic losses.
With aquaculture increasingly impacted by nitrogen runoffs and climate-related water quality changes, real-time data is becoming a critical component of responsible business operations. NS2’s system offers stakeholders a route to meeting ESG compliance requirements—particularly those relating to sustainable water use and environmental risk monitoring.
Through BlueInvest’s Readiness Assistance, NS2 gained tailored coaching from an advisor experienced in both business development and aquaculture ecosystems. According to Marise Almeida, NS2’s COO and CFO, this support was pivotal: “Our coach understood both our commercial needs and technical intricacies. That made all the difference.”
The collaboration also enabled field testing of sensors in aquaponics setups, directly validating their real-world application. These pilots strengthened NS2’s business case, leading to venture backing via Portugal’s INNOV-ID programme. The company is now seeking additional capital to expand its product reach and workforce, while exploring distribution partnerships across Europe.
This innovation aligns closely with the EU’s green economy goals, bridging scientific research and scalable ESG technology. With water stewardship becoming a core sustainability metric across industries, solutions like NS2’s can serve as enablers of measurable environmental governance outcomes.
Strategic significance lies in NS2’s ability to decentralise water quality monitoring and integrate it with operational dashboards for industry and environmental bodies. By delivering rapid insights at source, the technology promotes compliance with emerging climate risk disclosure and sustainability regulation mandates.
ESG BROADCAST will continue monitoring the updates related to this topic. Stay tuned to be updated on the related policy and pivotal regulatory shift.




