Diadem is a US racquet sports brand founded in 2015 and headquartered in Pompano Beach, Florida, designing its products in-house and describing its expansion from tennis into pickleball as central to its growth.

The pickleball division is extensive: paddle lines including Edge, Warrior, Hush (a quiet paddle), Icon, and Legacy, plus limited editions, custom paddles, and paddle kits; its own pickleball ball; pickleball-specific court shoes; and bags, apparel, and accessories.

The trade channel matters for facilities: Diadem runs a program for coaches, directors, and shops, a distributors page, and a retail finder, and it sponsors players through Team Diadem and ambassador programs. It also operates the separately sited Diadem Pickleball Complex with licensing information published.

Sales run direct online with free shipping thresholds and through wholesale channels.