Adriaan Willem Hartog

Part of Polyconcept Holding BV, T Shirt & Sons Ltd. is a British company founded in 2003 that offers a wide range of print-on-demand products. The company is based in Westbury, UK. Customers can use their designer tool and drop-ship to their customers, and connect with their online store for free. T Shirt & Sons was acquired by PF Concept International BV on March 03, 2021.

Polyconcept Holding SA sells promotional and gift products. Its products include lighters, small electronic items, textiles and writing instruments. The company was founded in 1977 and is headquartered in Croissy-Beaubourg, France.

Brand Addition Ltd. engages in the provision of branded products to businesses requiring merchandise to support corporate marketing activity and consumer promotions. Its products include clothing and accessories, desk supplies, executive gifts, folders and bags, lifestyle products, mugs and sports bottles, computer and mobile accessories, pens and pencils, and giveaways. The firm's services include creative services, account management, logistics and warehousing, web services, and buying and procurement. The company was founded on December 11, 1986 and is headquartered in Manchester, the United Kingdom.

Part of Polyconcept Holding BV, PF Concept International BV is a Dutch company that develops, markets, and promotes promotional gift products. The company is based in Roelofarendsveen, Netherlands. The CEO of the company is Ralf Oster.