Carl August Ameln

SelStor AB was established in 2006 by Michael Fogelberg, Patrick Metdepenninghen, Åke Fogelberg and Grana International. This group was involved in the formation of Shurgard Europe in 1994, and they contributed to helping the company become a market leader. During the successful European expansion, more than 140 facilities were built in seven countries over a ten-year period. At the beginning of 2007, Cron Industrier AS joined the ownership group. The main owner and Chairman of Cron is Carl A. Ameln, who started and developed City Self Storage in several European countries, including Sweden, over a period of about ten years. During the same year, two new investors joined the ownership group, Mesna Industrier AS, which manages investments and is owned by Per Erik Engebretsen. He was also involved in establishing UNION Gruppen, which specialises in real estate, financing and investments. He was one of the four main owners and in charge of the Group's financing business. The second investor was Bertil Canderudh, businessman and property investor. Bertil's Board representative is Johan Hampf. During the spring of 2008, a new share issue was subscribed by the Norwegian Smedvig Capital, a London-based venture capital company. Smedvig Capital was established in 1996 and has since contributed to the growth of more than 30 businesses. SelStor began in Stockholm, but over the next few years plans are to expand throughout Sweden and then in select European markets. The aim is to open at least 3 or 4 facilities a year.

Shepper Ltd. provides on-demand tailored data collection and operational activities for businesses & individuals. The firm perform regular condition reports of properties on behalf of Airbnb management companies. It serves insurance, commercial services, real estate, security, and public services. The company was founded by Carl August Ameln, Ben Prouty, and Jan Vanhoutte in and is headquartered in London, the United Kingdom.

Trastero King SL is a Spanish company that offers storage solutions for individuals and businesses. The company is based in Cornella de Llobregat, Spain. The company provides rental storage units that are accessible by vehicle and have direct loading and unloading access. The company has multiple locations in the Barcelona province, including Cornellà, Hospitalet, Gavà, Castelldefels, Llagosta, Mollet del Vallés, Mataró, Maresme, Vilanova, and Sant Pere de Ribes. The company offers transparent pricing and conditions, with availability updated in real-time and no additional costs or paperwork. The company also prioritizes security and cleanliness, with solid new containers, maximum security locks, and high-definition surveillance cameras. Trastero King was founded in 2015 by Cecilia Rimoldi Parallada, Lasse Høydal, Carl August Ameln, Arnaud Jean Luc Ripert, and Arnaud Jean Luc Ripert has been the CEO since then.

EuroBox Minilager AS provides storage services. It operates as a mini-warehouse company that offers free loan of both car and trailer. The firm engages in the operation and rental of self storage units to private individuals and businesses. The company was founded in January 1993 and is headquartered in Drammen, Norway.

Cron Gruppen AS acquires, develops, and trades commercial properties. It also offers self-storage areas. The company was founded in 1993 and is headquartered in Drammen, Norway.