Lars Ingvar Guldstrand

Cataracta Förvaltnings AB is a holding company that develops remote controlled automatic twistlock (RAT) systems for marine container handling applications. Its RAT system enables to unlock twistlocks by remote control, as well as remotely writes and reads information into the twistlocks. It conveys information from port to port, such as container identification and port of destination. It also develops products for efficient and secure marine container handling. The company was founded on October 21, 2000 and is headquartered in Trollhattan, Sweden.

EcoEnergy Scandinavia AB develops, designs, and operates waste-to-energy and biofuel based combined heat and power plants. The firm manages district heating movements, conducts development work in the field of biomedical engineering, construction activities, and consultations in the field of energy technology. The company is headquartered in Danderyd, Sweden.

KMW Energi AB supplies hot water, power and cogeneration plants fired by biofuels. It designs, manufactures and build customized solutions and is responsible for the entire combustion process. The company was founded in 1958 and is headquartered in Norrtälje, Sweden.

Rådstorget Fastigheter AB provides alternative investment opportunities to institutional, corporate and private investors. The focus is on providing competitive risk adjusted absolute return with a limited down side. It constructs buildings and owns real estate, as well. It provides consulting services in real estate and the financial sector. It also offers dealing in securities and activities related thereto. The company was founded on January 10, 2000 and is headquartered in Stockholm, Sweden.

Mineral Invest International MII AB operates as international gold exploration and development company. It conducts trading in metals and minerals, and limited gold exploration. The company was founded in September 12, 2007 and is headquartered in Stockholm, Sweden.

Cindrigo Energy Ltd. operates as a renewable energy company. It engages in the business of promoting, owning and operating infrastructure for the conversion of waste to energy (WTE) and biomass energy projects. The company’s Kiev Project focuses on development, construction and operation of a WTE incineration plant, which designed to generate electric power and thermal energy by burning municipal solid waste. Cindrigo Energy was founded on December 21, 2017 and is headquartered in Toronto, Canada.

Din Del AB publishes directories. The company is based in Bromma, Sweden.

Challenger Acquisitions Ltd. is a holding company specializes in design and engineering of giant observation wheels and structures. It operates through the following segments: Corporate Center, Engineering, and Investment. The Corporate Center segment administers and manages the Group and identifies target companies or businesses for possible acquisitions in the Giant Observation Wheel industry. The Engineering segment which was compromised by the acquired Starneth design and engineering business. The Investment segment which compromises all investments the group holds in Giant Observation Wheels globally. The company was founded on November 24, 2014 and is headquartered in Saint Peter Port, United Kingdom.

Cindrigo Ltd. produces renewable energy. The private company is based in London, UK. Mustaq A. Patel has been the CEO of the British company since 2018.

Founded in 2022, Cindrigo Geothermal Ltd. is a subsidiary of Cindrigo Holdings Ltd. that develops geothermal plants. The company is based in London, UK.