Michael Hartnack

Global Accelerator Management BV (Rockstart), a subsidiary of Rockstart Enterprises BV, is a venture capital firm founded in 2011 by Oscar Kneppers, Koen Wagemakers, Rune Theill and Don Ritzen. The firm is headquartered in Netherlands.

The Ocean Cleanup is an international non-profit organization founded in 2013 by Boyan Slat. The Ocean Cleanup is based in Rotterdam, the Netherlands, and employs approximately 95 engineers and researchers. The Dutch company aims to rid the world's oceans of plastic through a dual strategy of intercepting plastic in rivers and cleaning up what has already accumulated in the oceans. The company develops and deploys large-scale systems to efficiently concentrate plastic for periodic removal. The plastic is tracked and traced through DNV's chain of custody model to certify claims of origin when recycling it into new products. The company has developed a portfolio of interceptor solutions to halt and extract riverine plastic before it reaches the ocean.

High Tide Worldwide BV (HTW) is a private equity investment company based in Haarlem. Previously known as the Triodos Innovation Fund, the fund was established in 2005 by the specialist European financial institution Triodos Bank, based in the Netherlands and focused on ethical issues and sustainable projects. HTW became independent from Triodos late 2008. The firm's overall goal is to demonstrate that the pursuit of social, environmental and ethical goals can be economically successful.

Marine Current Turbines Ltd. develops tidal stream generation technology. It operates as an original equipment manufacturer of commercial scale tidal stream technology to research, design, manufacture and support of tidal stream energy generating systems. The company was founded in 1999 and is headquartered in Bristol, the United Kingdom.