Madadh MacLaine is a visionary entrepreneur working in sustainability and the maritime sector. She is the Founder and CEO of Zero Emissions Maritime Technology Ltd (ZEM-Tech) Secretary-General of the Zero Emissions Ship Technology Association (ZESTAs), co-founder of the International Windships Association (IWSA), as well as Founder Director of the sustainable development NGO, Fair Winds Trust. She has a background in hydrogen water electrolysis and maritime systems, having represented ITM Power, plc, in the maritime industry.

Madadh has been working in zero-emissions shipping since she began designs for a ZE multi-access cargo ship in 2000. Frustrated by the lack of available technology, she set off on a course to bring ZE Ship Technology to the market. She founded ZESTAs to promote the interests of the Zero Emissions Ship Technology Industry in 2019. The goals of ZESTAs are to support ZE Technology development, represent its interests in the international shipping industry and regulatory bodies, and ensure a level playing field for Zero Emissions Ship Technologies, as well as shipowners, who are coming under increasing pressure to decarbonize their fleets. ZESTAs has recently been granted consultative statuse at the IMO.