Maurizio Antonio Castelli

Gunova Kalender GmbH provides printing services. The firm produces calendars, notebooks and multi-month calendars for advertisers. It offers printing material, tools, and digital printing material. The company was founded in 1934 and is headquartered in Lemgo, Germany.

Nazareno Gabrielli Diaries SpA manufactures leather products. The company was founded in 1907 and is headquartered in Tolentino, Italy.

Ediciones Deusto SA operates as a holding company that engage sin the design and manufacture, and commercialization of stationery products. These include notebooks, planners, journals, writing pads, and portfolios. It also offers personalized corporate gift items, such as watches, pens, flash drives, thermal flasks, and calendars. Further, it operates an e-commerce portal through which online purchases can be made. The company was founded by José Luís Urquijo, José Angel Sánchez Asiaín, Agustín Rodríguez Sahagún, and Jose María Tobar Ochoa de Alda in 1959, and is headquartered in Bilbao, Spain.

Lediberg SpA manufactured electronic diaries and paper products. It offered diaries such as desktop and pocket-sized, square-ruled, organizers, basic diaries, address books and note pads. The company was founded by Lindo and Maurizio Castelli in 1965 and was headquartered in San Paolo d'Argon, Italy.