Your life.
Your design.

Helping people bring great design into the spaces they live, work and play.

Helping people bring great design into the spaces they live, work and play.

YDesign Group is an online-led retailer offering the best in modern and contemporary lighting, furnishings, and decorative plumbing to design driven consumers and trade professionals.

YLighting, our flagship brand that launched in 2001, is the leading modern lighting retailer in the US and offers more than 10,000 designs from top international brands. We launched YLiving in 2009 to provide our customers access to exceptional modern furniture and accessories. In 2014, we expanded into the decorative plumbing category.

YDesign Group inspires our customers to confidently fulfill their interior design visions with us by providing them an incomparable experience: a combination of products, advice, inspiration, site design and services that no competitor can match.

Our Brands

ylightingFounded in 2001, YLighting is the leading retailer dedicated to the best in modern and contemporary lighting. We offer design driven consumers and trade professionals a premier selection of more than 15,000 products from top international brands, such as Artemide, FLOS, Nelson Bubble Lamps, and Louis Poulsen. Our curated collection ranges from iconic mid-century modern works to today’s most innovative, contemporary lighting. Our difference is our commitment to an incomparable customer experience including an extensive assortment of the best in modern and contemporary lighting, expert advice and service, inspiration and support throughout our customers’ projects.
LumensLumens was founded in 2004 with a goal in mind: to be the best place to shop for lighting, fans, modern furniture and accessories for people who love modern design. Cofounded by Ken Plumlee and Peter Weight, Lumens team is comprised of lighting and design enthusiasts servicing residential, trade professional, retail showroom, and commercial customers. Its team of product specialists is certified by the American Lighting Association. YDesign Group acquired Lumens in July, 2016.
ylivingLaunched in 2009, YLiving offers design-driven consumers and trade professionals the best in modern furniture, accessories, and decorative plumbing. We carry thousands of exceptional products from renowned brands, including Herman Miller, Knoll, and Kartell, as well as from up-and-coming companies. Our curated collection ranges from midcentury-modern classics to today’s most cutting-edge, contemporary designs. Our difference is our commitment to an incomparable customer experience including an extensive assortment of the best in modern and contemporary home furnishings, expert advice and service, inspiration and support throughout our customers’ projects.
Louis Poulsen and Knoll

Meet the Team

Sean Callahan

Chief Executive Officer

Sean Callahan joined the company as CEO in September 2008. Prior to YDesign Group, Sean was an Executive in Residence at the private equity firm Alpine Investors and led the operational diligence on the YLighting investment. Previous to this he was based in London as the Senior Vice President and GM of EMEA for Business Engine, an enterprise software company backed by Morgan Stanley, Oak Investment Partners, and Technology Crossover Ventures. Business Engine was acquired in early 2007 by Planview, following a successful turnaround. Previous experiences include Director level roles in product management, product marketing and business development at Oracle and NONSTOP Solutions (now part of Manhattan Associates).

Sean holds a BS in Manufacturing Systems Engineering from the Pennsylvania State University, an MBA from Northwestern’s Kellogg School of Business and Masters of Engineering from Northwestern’s McCormick School of Engineering. He lives with his wife and three children in the San Francisco Bay Area.